procedure for checking over-voltage damage
TRANSCRIPT
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Procedure for checkingover-voltage damage.
Published January 25, 2016
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Contents
Checking procedure for over-voltage damage.................................................................7
1. Check Schottky diode measurement with multimeter;..............................................................7
2. Check voltage drop between diode array pin#1 and Ground..................................................8
3. Check termination resistors resistance in RJ-45 connector. ....................................................9
260GSP series RouterBoards...........................................................................................10
Disassembling information.........................................................................................................11
Schottky diode measuring with multimeter in diode mode.........................................................12
Voltage drop between Ethernet transformers and Ground.........................................................12
750r2 series RouterBoards...............................................................................................13
List of RB750r2 series:...............................................................................................................13
Disassembling information.........................................................................................................15
Schottky diode measuring with multimeter in diode mode.........................................................17
Voltage drop between TR1 pins and Ground.............................................................................17
75R termination resistors resistance..........................................................................................18
751U-2HnD series RouterBoards.....................................................................................19
Disassembling information.........................................................................................................20
Schottky diode measuring with multimeter in diode mode.........................................................21
Voltage drop between TR100 pins and Ground.........................................................................21
75R termination resistors resistance..........................................................................................22
850Gx2 series RouterBoards............................................................................................23
Schottky diode measuring with multimeter in diode mode.........................................................24
Voltage drop between TR5, ether2 - ether5 pins and Ground....................................................25
75R Termination resistors resistance.........................................................................................26
911-2Hn series RouterBoards...........................................................................................27
Schottky diode measuring with multimeter in diode mode.........................................................28
Voltage drop between TR400 Pins and Ground.........................................................................28
75R termination resistors resistance..........................................................................................29
911-5Hn series RouterBoards...........................................................................................30
Schottky diode measuring with multimeter in diode mode.........................................................31
Voltage drop between TR400 Pins and Ground.........................................................................31
75R termination resistors resistance..........................................................................................32
912G - 2HnD series RouterBoards...................................................................................33
BaseBox 2 disassembling information.......................................................................................36
Schottky diode measuring with multimeter in diode mode.........................................................38
Voltage drop between TR1 Pins and Ground.............................................................................39
75R Termination resistors resistance.........................................................................................40
912G - 5HPnD series RouterBoards.................................................................................41
QRT 5 disassembling information..............................................................................................45
Schottky diode measuring with multimeter in diode mode.........................................................49
Voltage drop between TR1 pins and Ground.............................................................................50
75R Termination resistors resistance.........................................................................................51
2 Latest Checking procedure for over-voltage damage available at www.mikrotik.com
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921UAGS-5SHPac series RouterBoards.........................................................................52
RB921GS-5HPac series:...........................................................................................................52
Disassembling information.........................................................................................................53
Schottky diode measuring with multimeter in diode mode.........................................................55
Voltage drop between TR300 pins and Ground.........................................................................56
922GS-5HPac series RouterBoards.................................................................................57
RB922GS-5HPac series:...........................................................................................................57
Disassembling information.........................................................................................................62
mANTBox disassembling...........................................................................................................66
Schottky diode measuring with multimeter in diode mode.........................................................69
Voltage drop between TR300 and Ground.................................................................................70
951-2n series RouterBoards.............................................................................................71
Disassembling information.........................................................................................................72
Schottky diode measuring with multimeter in diode mode.........................................................73
Voltage drop between TR1 pins and Ground.............................................................................73
75R termination resistors resistance..........................................................................................74
951G-2HnD series RouterBoards.....................................................................................75
Disassembling information.........................................................................................................76
Schottky diode measuring with multimeter in diode mode.........................................................77
Voltage drop between TR100 pins and Ground.........................................................................77
75R termination resistors resistance..........................................................................................78
951Ui-2HnD series RouterBoards....................................................................................79
Disassembling information.........................................................................................................80
Schottky diode measuring with multimeter in diode mode.........................................................81
Voltage drop between TR102 pins and Ground.........................................................................81
75R termination resistors resistance..........................................................................................82
953GS-5HnT series RouterBoards...................................................................................83
Schottky diode measuring with multimeter in diode mode.........................................................84
................................................................................................................................................. 84
Voltage drop between TR1 pins and Ground.............................................................................85
75R Termination resistors resistance.........................................................................................86
2011 series RouterBoards ................................................................................................87
List of RB2011 series RouterBoards:.........................................................................................87
Disassembling information.........................................................................................................88
Schottky diode measuring with multimeter in diode mode.........................................................90
Voltage drop between Ethernet transformers pins and Ground..................................................90
Termination resistors resistance in RJ-45 connector..................................................................91
3011 series RouterBoards ................................................................................................92
List of RB3011 series RouterBoards:.........................................................................................92
Disassembling information.........................................................................................................92
Schottky diode measuring with multimeter in diode mode.........................................................93
Voltage drop between Ethernet transformers and Ground.........................................................93
Termination resistors resistance ................................................................................................94
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cAP series RouterBoards..................................................................................................95
RBcAP series:............................................................................................................................95
Disassembling information.........................................................................................................96
Schottky diode measuring with multimeter in diode mode.........................................................97
Voltage drop between TRF1 pins and Ground...........................................................................98
75R Termination resistors resistance.........................................................................................99
CCR1009 series RouterBoards.......................................................................................100
List of CCR1009 series RouterBoards:....................................................................................100
Disassembling information.......................................................................................................101
Schottky diode measuring with multimeter in diode mode........................................................104
Voltage drop between Ethernet pins and Ground.....................................................................104
Termination resistors resistance in RJ-45 connector................................................................106
CCR1016-12G, CCR1036-12G series..............................................................................107
List of Cloud Core Router CCR1016-12G, CCR1036-12G series:...........................................107
Disassembling information.......................................................................................................108
Voltage drop between diode array pin#1 and Ground..............................................................109
Termination resistors resistance in RJ-45 connector................................................................110
CCR1036-8G-2S+ series ..................................................................................................111
List of Cloud Core Router CCR1036-8G-2S+ series:...............................................................111
Disassembling information.......................................................................................................112
Voltage drop between Ethernet Transformers on ports and Ground.........................................114
CCR1072-1G-8S+ series..................................................................................................115
Cloud Core Router CCR1072-1G-8S+:....................................................................................115
Disassembling information.......................................................................................................115
Voltage drop between capacitors and Ground..........................................................................116
CRS109-8G-4S series RouterBoards.............................................................................117
Disassembling information.......................................................................................................118
Schottky diode measuring with multimeter in diode mode........................................................119
Voltage drop between TR1200, TR1201 and Ground...............................................................119
75R termination resistors resistance........................................................................................120
CRS112-8G-4S series RouterBoards.............................................................................121
Disassembling information.......................................................................................................121
Schottky diode measuring with multimeter in diode mode........................................................123
Voltage drop between diode TR1200, TR1201 and Ground.....................................................123
75R termination resistors resistance........................................................................................124
CRS125-24G-1S series....................................................................................................125
List of Cloud Router Switch CRS125-24G-1S series:..............................................................125
Disassembling information.......................................................................................................126
Schottky diode measuring with multimeter in diode mode........................................................128
Voltage drop between Ethernet Transformers and Ground......................................................128
Termination resistors resistance in RJ-45 connector................................................................129
CRS210-8G-2S+ series RouterBoards...........................................................................130
Disassembling information.......................................................................................................130
4 Latest Checking procedure for over-voltage damage available at www.mikrotik.com
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Schottky diode measuring with multimeter in diode mode........................................................132
Voltage drop between TR1200, TR1201 and Ground..............................................................132
CRS212-1G-10S-1S+ series RouterBoards...................................................................133
Disassembling information.......................................................................................................133
Schottky diode measuring with multimeter in diode mode........................................................135
Voltage drop between TRF1200 and Ground...........................................................................135
75R termination resistors resistance........................................................................................136
CRS226-24G-2S+ series RouterBoards.........................................................................137
Disassembling information.......................................................................................................138
Schottky diode measuring with multimeter in diode mode........................................................139
Voltage drop between Ethernet Transformers and Ground......................................................139
75R termination resistors resistance........................................................................................140
DynaDish series RouterBoards.....................................................................................141
RBDynaDish series:.................................................................................................................141
Disassembling information.......................................................................................................142
Schottky diode measuring with multimeter in diode mode........................................................143
Voltage drop between TR1 pins and Ground...........................................................................144
FTC11 series RouterBoards...........................................................................................145
Schottky diode measuring with multimeter in diode mode........................................................147
Voltage drop between TR1 pins and Ground...........................................................................147
Groove 52HPn series RouterBoards..............................................................................148
Voltage drop between TR300 pins and Ground.......................................................................149
75R termination resistors resistance........................................................................................149
hAP lite series RouterBoards.........................................................................................150
1.Disassembling information....................................................................................................151
Voltage drop between TR1 pins and Ground...........................................................................154
mAP series RouterBoards..............................................................................................155
RBmAP series:........................................................................................................................155
Disassembling information.......................................................................................................156
Schottky diode measuring with multimeter in diode mode........................................................158
Voltage drop between J2 Pins and Ground..............................................................................159
Metal 5SHPn series RouterBoards.................................................................................160
Schottky diode measuring with multimeter in diode mode........................................................162
Voltage drop between TR1000 pins and Ground.....................................................................162
Metal 2SHPn series RouterBoards.................................................................................163
Schottky diode measuring with multimeter in diode mode........................................................165
Voltage drop between TR1000 pins and Ground.....................................................................165
Metal 9HPn series RouterBoards...................................................................................166
Schottky diode measuring with multimeter in diode mode........................................................168
Voltage drop between TR1000 pins and Ground.....................................................................168
OmniTIK UPA-5HnD series RouterBoards....................................................................169
Schottky diode measuring with multimeter in diode mode........................................................171
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Voltage drop between TR102 pins and Ground.......................................................................172
75R Termination resistors resistance.......................................................................................172
SXTG-2HnD series RouterBoards..................................................................................173
SXT 2 series:...........................................................................................................................173
Disassembling information.......................................................................................................174
Schottky diode measuring with multimeter in diode mode........................................................176
Voltage drop between TR100 pins and Ground.......................................................................177
SXTG-5HPnD series RouterBoards................................................................................178
RBSXTG-5HPnD series:..........................................................................................................178
Disassembling information.......................................................................................................179
Schottky diode measuring with multimeter in diode mode........................................................181
Voltage drop between TRF401 pins and Ground.....................................................................183
75R Termination resistors resistance.......................................................................................184
SXTG-5HPacD series RouterBoards..............................................................................185
RBSXTG-5HPacD series:........................................................................................................185
Disassembling information.......................................................................................................186
Schottky diode measuring with multimeter in diode mode........................................................191
Voltage drop between TR1 pins and Ground...........................................................................194
SXTLite2 series RouterBoards.......................................................................................195
RBSXTLite2 series:..................................................................................................................195
Disassembling information.......................................................................................................197
Schottky diode measuring with multimeter in diode mode........................................................199
Voltage drop between TRF400 pins and Ground.....................................................................200
75R Termination resistors resistance.......................................................................................201
SXTLite5 series RouterBoards.......................................................................................202
RBSXTLite5 series:..................................................................................................................202
Disassembling information.......................................................................................................205
Schottky diode measuring with multimeter in diode mode........................................................207
Voltage drop between TRF400 pins and Ground.....................................................................208
75R Termination resistors resistance.......................................................................................209
SXT LTE series RouterBoards........................................................................................210
RBSXT LTE series:..................................................................................................................210
Disassembling information.......................................................................................................211
Schottky diode measuring with multimeter in diode mode........................................................213
Voltage drop between TR300 pins and Ground.......................................................................214
75R Termination resistors resistance.......................................................................................215
wAP series RouterBoards..............................................................................................216
Schottky diode measuring with multimeter in diode mode........................................................218
Voltage drop between TR1 pins and Ground...........................................................................218
6 Latest Checking procedure for over-voltage damage available at www.mikrotik.com
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Checking procedure for over-voltage damage
Over-voltage can be caused by the following reasons: high voltage surge, lightning, electrostatics etc. You can check if routerboard was damaged by over-voltage, by using the following testing methods:
1. Check Schottky diode measurement with multimeter;
Schottky diode quality can be measured with diode test function, see picture 1, When the test probes are connected as shown in Pictur2: red probe to Cathode and black probe to Anode, Value of measurement should be Open loop, as in picture 1. If Schottky diode will be damaged, measurement will show some other value, from short to small voltage drop.
Picture 1 Picture 2
In the same manner we make Diode bridge test, considering schematic of bridge rectifiers, see Picture 3 and Picture 4.
Picture 3 Picture 4
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2. Check voltage drop between diode array pin#1 and Ground.
You should measure in diode mode: hold “positive” wire on the Ground and “COM”
wire to diode array pin#1). Diode array pin#1 is always marked by dot mark on the diode array case,see picture 5 .
Picture 5
Often easier to measure the voltage drop on diode array pins are on transformer pins, wich also connects to diode array pins. Measurement do similar to diode array: measure in diode mode (hold “positive” wire on the Ground and “COM” wire to marked Transformers pins)
For example Picture 6 are marked Transformers pins and picture 7 are shown how to measure.
Picture 6
Picture 7
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3. Check termination resistors resistance in RJ-45 connector.
Picture 8
For this measurement you should take patch cord and plug it into the routerboard, see picture 8, and thenmeasure resistance of termination resistors.
Resistance value between Rx and Tx line must be 150 Ohm +/-4%.
If resistance value is smaller or higher then Tx/Rx line was damaged by high voltage surge.
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260GSP series RouterBoards
RB260GSP
Picture 9
RB260GS
Picture 10
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Disassembling information
1. Take off the cover with a screwdriver as shown in the pictures 282
Picture 11
2. Take out the board with a screwdriver as shown in the picture 12
Picture 12
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Schottky diode measuring with multimeter in diode mode
Diode bridge reference numbers are D1, D2, D3, D7, D17. Schottky diode quality measurement method describe on page 7
Picture 13
Voltage drop between Ethernet transformers and Ground.
Check voltage drop between TR1, TR2, TR3, TR4, TR5 Ethernet Transformers on ports Ether1 – Ether5 pins and Ground. Ether Pins are marked with red. It should be in the range from 0,32V to 0,438V. Measure in diode mode: hold “positive” wire on the Ground and “COM”
wire to marked Transformers pins.
Picture 14
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750r2 series RouterBoards
List of RB750r2 series:
PowerBox
Picture 15
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hEX lite
Picture 16
hEX PoE lite
Picture 17
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Disassembling information
PowerBox disassembling
1. step
Picture 18
Unscrew with Torx T8
2. step
Remove board from case
Picture 19
3. Step
Incline fixed plastic clips to sever board from case.
Picture 20
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hEX lite and hEX PoE lite disassembling
Take off the cover with a screwdriver as shown in the picture 21
Picture 21
picture 22
Take out the board with a screwdriver as shown in the picture 22
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Schottky diode measuring with multimeter in diode mode
Schottky diode reference numbers is D7, D8, D705, D706, D707, D708. Schottky diode quality
measurement method describe on page 7
Picture 23
Voltage drop between TR1 pins and Ground.
Check voltage drop between TR1 Ethernet Transformers on ports Ether1 – Ether5 pins and Ground. Ether Pins are circled red. It should be in the range from 0,32V to 0,438V. Measure in diode mode: hold “positive” wire on the Ground and “COM” wire to marked TR1
Transformers pins
Picture 24
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75R termination resistors resistance
Red circled resistors resistance should be 75Ohm +/- 1%
Picture 25
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751U-2HnD series RouterBoards
RB751U-2HnD
Picture 26
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Disassembling information
Take off the cover with a screwdriver as shown in the pictures 27
Picture 27
Take out the board with a screwdriver as shown in the picture 28
Picture 28
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Schottky diode measuring with multimeter in diode mode
Diode bridge reference numbers are D2 and D4. Schottky diode quality measurement method describe on page 7
Picture 29
Voltage drop between TR100 pins and Ground.
Check voltage drop between Ground and Ethernet signal lines, wich are connected to TR100 Ethernet Transformer on ports Ether1 – Ether5 pins. Ether Pins are marked with red arrows. It should be in the range from 0,32V to 0,438V. Measure in diode mode: hold “positive” wire on the Ground and “COM” wire to marked Transformers pins.
Picture 30
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75R termination resistors resistance
Red circled resistors resistance should be 75R +/- 1%
Picture 31
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850Gx2 series RouterBoards
RB850Gx2
Picture 32
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Schottky diode measuring with multimeter in diode mode
Schottky diode reference number is D1; Diode bridge reference numbers are D2 and D5. Schottky diode
quality measurement method describe on page 7
Picture 33
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Voltage drop between TR5, ether2 - ether5 pins and Ground.
Check voltage drop between TR5, ether2- ether5 Transformers pins and Ground. Ether Pins are marked with red arrows and circles. It should be in the range from 0,32V to 0,589V. Measure in diode mode:hold “positive” wire on the Ground and “COM” wire to marked
Ethernet and TR5 pins.
Picture 34
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75R Termination resistors resistance.
Resistor resistance, marked with red arrow, should be 75 Ohm +/- 1%
Picture 35
On ports Ether2 – Ether5 You can take patch cord and plug it into the routerboard, and then measure as describe on page 9
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911-2Hn series RouterBoards
911 Lite2
Picture 36
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Schottky diode measuring with multimeter in diode mode
Schottky diode reference numbers D5. Schottky diode quality measurement method describe on page 7
Picture 37
Voltage drop between TR400 Pins and Ground.
Check voltage drop between TR400 Ethernet Transformers on ports Ether1 pins and Ground. Ether Pins are marked with red arrows.
It should be in the range from 0,32V to 0,438V
Picture 38
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75R termination resistors resistance
Resistors marked with red arrows should be 75Ohm +/- 1%
Picture 39
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911-5Hn series RouterBoards
911 Lite5
Picture 40
30 Latest Checking procedure for over-voltage damage available at www.mikrotik.com
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Schottky diode measuring with multimeter in diode mode
Schottky diode reference numbers D5. Schottky diode quality measurement method describe on page 7
Picture 41
Voltage drop between TR400 Pins and Ground.
Check voltage drop between TR400 Ethernet Transformers on ports Ether1 pins and Ground. Ether Pins are marked with red arrows.It should be in the range from 0,32V to 0,438V. Measure in diode mode: hold “positive” wire on the Ground and “COM” wire to marked
TR400 Transformer pins.
Picture 42
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75R termination resistors resistance
Resistors marked with red arrows should be 75Ohm +/- 1%
Picture 43
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912G - 2HnD series RouterBoards
RB912UAG-2HPnD
Picture 44
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RB911G-2HPnD
Picture 45
34 Latest Checking procedure for over-voltage damage available at www.mikrotik.com
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BaseBox 2
Picture 46
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BaseBox 2 disassembling information
1. step
Remove the sticker from connectors
Picture 47
2. step
Remove the screw stickers
Picture 48
36 Latest Checking procedure for over-voltage damage available at www.mikrotik.com
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3. step
Unscrew the case base from the board holder with torque screwdriver T8
Picture 49
4. step
Remove the case base from the board holder
Picture 50
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Schottky diode measuring with multimeter in diode mode
Schottky diode reference number is D104; Diode bridge reference numbers are D1 and D2. Schottky diode
quality measurement method describe on page 7
Picture 51
38 Latest Checking procedure for over-voltage damage available at www.mikrotik.com
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Voltage drop between TR1 Pins and Ground.
Check voltage drop between TR1, Transformers pins and Ground. Ether Pins are markedwith red arrows. It should be in the range from 0,32V to 0,589V. Measure in diode mode: hold “positive” wire on the Ground and “COM” wire to marked TR1 Transformers pins.
Picture 52
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75R Termination resistors resistance.
Resistor resistance, marked with red arrow, should be 75 Ohm +/- 1%
Picture 53
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912G - 5HPnD series RouterBoards
RB912UAG-5HPnD
Picture 54
Latest document “Checking procedure for overvoltage damage” available at www.mikrotik.com 41
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SEXTANT G 5HPnD
Picture 55
42 Latest Checking procedure for over-voltage damage available at www.mikrotik.com
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BaseBox 5
Picture 56
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QRT 5
Picture 57
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QRT 5 disassembling information
1. step
Remove the wing nut from Ground M4 screw
Picture 58
2. step
Remove the 12 pcs screws with torque screwdriverT8
Picture 59
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3. step
Remove the cover
Picture 60
4. step
Remove the M4 screw from bottom plate and than separate bottom plate from antenna with board.
Picture 61
46 Latest Checking procedure for over-voltage damage available at www.mikrotik.com
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BaseBox 5 disassembling information
1. step
Remove the sticker from connectors
Picture 62
2. step
Remove the screw stickers
Picture 63
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3. step
Unscrew the case base from the board holder with torque screwdriver T8
Picture 64
4. step
Remove the case base from the board holder
Picture 65
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Schottky diode measuring with multimeter in diode mode
Schottky diode reference number is D104; Diode bridge reference numbers are D1 and D2. Schottky diode
quality measurement method describe on page 7
Picture 66
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Voltage drop between TR1 pins and Ground.
Check voltage drop between TR1, Transformers pins and Ground. Ether Pins are markedwith red arrows. It should be in the range from 0,32V to 0,589V. Measure in diode mode: hold “positive” wire on the Ground and “COM” wire to marked TR1 Transformer pins.
Picture 67
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75R Termination resistors resistance.
Resistor resistance, marked with red arrow, should be 75 Ohm +/- 1%
Picture 68
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921UAGS-5SHPac series RouterBoards
RB921GS-5HPac series:
NetMetal 5
Picture 69
52 Latest Checking procedure for over-voltage damage available at www.mikrotik.com
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Disassembling information
NetMetal 5 disassembling
1. step
Open case and remove label from connectors
Picture 70
2. step
Remove 4 screws with hexagon key 3 mm screwdriver
Picture 71
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3. Step
Unscrew the PCB from case back with 4 pcs., M3 and 1 pcs., M2 screws
Picture 72
Unscrew the SMA connector nuts with 8 mm wrench.
Picture 73
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Schottky diode measuring with multimeter in diode mode
Schottky diode reference numbers are D8. Schottky diode quality measurement method describe on page 7
Picture 74
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Voltage drop between TR300 pins and Ground.
Check voltage drop between TRF300 Ethernet Transformers on port Ether1 pins and Ground. Ether Pins are marked with red arrows. It should be in the range from 0,32V to 0,438V. Measure in diode mode:hold “positive” wire on the Ground and “COM” wire to marked
TRF300 Transformers pins.
Picture 75
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922GS-5HPac series RouterBoards
RB922GS-5HPac series:
NetMetal 5
Picture 76
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QRT 5 ac
Picture 77
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RB922UAGS-5HPacD
Picture 78
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RB911G-5HPacD
Picture 79
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mANTBox 15s
Picture 80
mANTBox 19s
Picture 81
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Disassembling information
QRT 5 ac disassembling.
1. step
Remove the wing nut from Ground M4 screw
Picture 82
2. step
Remove the 12 pcs screws with torque screwdriverT8
Picture 83
62 Latest Checking procedure for over-voltage damage available at www.mikrotik.com
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3. step
Remove the cover
Picture 84
4. step
Remove the M4 screw from bottom plate and than separate bottom plate from antenna with board.
Picture 85
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NetMetal 5 disassembling
1. step
Picture 86
Open case and remove label from connectors
2. step
Remove 4 screws with hexagon key 3 mm screwdriver
Picture 87
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3. Step
Unscrew the PCB from case back with 4 pcs., M3 and 1 pcs., M2 screws
Picture 88
Unscrew the SMA connector nuts with 8 mm wrench.
Picture 89
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mANTBox disassembling.
1. Open antenna enclosure and unscrew wingnut.
Picture 90
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2. Unscrew case T10 hex screws and remove case
Picture 91
Picture 92
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4. Unscrew M4x16 A2 screw and remove antenna assembly from case.
Picture 93
Make sure that SFP connector clips are not disturbing to remove antenna assembly
Picture 94
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Schottky diode measuring with multimeter in diode mode
Schottky diode reference numbers are D1, D6, D8. Schottky diode quality measurement method describe onpage 7
Picture 95
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Voltage drop between TR300 and Ground.
Check voltage drop between Ethernet Transformers TR300 on port Ether1 pins and Ground. TR300 pins are marked with red arrows. It should be in the range from 0,32V to 0,438V. Measure in diode mode: hold “positive” wire on the Ground and “COM” wire to marked
Transformers pins
Picture 96
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951-2n series RouterBoards
RB951-2n
Picture 97
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Disassembling information
Take off the cover with a screwdriver as shown in the picture 208
Picture 98
Take out the board with a screwdriver as shown in the picture 209
Picture 209
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Schottky diode measuring with multimeter in diode mode
Schottky diode reference numbers are D400, D402. Schottky diode quality measurement method describe on page 7
Picture 99
Voltage drop between TR1 pins and Ground.
Check voltage drop between TR1 Ethernet Transformers on ports Ether1 – Ether5 pins and Ground. Ether Pins are circled red. It should be in the range from 0,32V to 0,438V. Measure in diode mode: hold “positive” wire on the Ground and “COM” wire to marked
Transformers pins.
Picture 100
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75R termination resistors resistance
Red circled resistors resistance should be 75Ohm +/- 1%
Picture 101
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951G-2HnD series RouterBoards
RB951G-2HnD
Picture 102
Latest document “Checking procedure for overvoltage damage” available at www.mikrotik.com 75
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Disassembling information
951G-2HnD disassembling
Take off the cover with a screwdriver as shown in the picture 102
Picture 102
Take out the board with a screwdriver as shown in the picture 103
Picture 103
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Schottky diode measuring with multimeter in diode mode
Diode bridge reference numbers are D4 and D6. Schottky diode quality measurement method describe on page 7
Picture 104
Voltage drop between TR100 pins and Ground.
Check voltage drop between TR100 Ethernet Transformers on ports Ether1 – Ether5 pins and Ground. Ether Pins are marked with red arrows. It should be in the range from 0,32V to 0,438V. Measure in diode mode: hold “positive” wire on the Ground and “COM” wire to
marked TRF100 Transformer pins.
Picture 105
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75R termination resistors resistance
Red circled resistors resistance should be 75R +/- 1%
Picture 106
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951Ui-2HnD series RouterBoards
RB951Ui-2HnD
Picture 107
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Disassembling information
Take off the cover with a screwdriver as shown in the pictures 108
Picture 108
Take out the board with a screwdriver as shown in the picture109
Picture 109
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Schottky diode measuring with multimeter in diode mode
Diode bridge reference numbers are D2, D4 and D1000. Schottky diode quality measurement method describe on page 7
Picture 110
Voltage drop between TR102 pins and Ground.
Check voltage drop between TR102 Ethernet Transformers on ports Ether1 – Ether5 pins and Ground. Ether Pins are marked with red arrows. It should be in the range from 0,32V to 0,438V. Measure in diode mode: hold “positive” wire on the Ground and “COM” wire to
marked TR102 Transformer pins.
Picture 112
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75R termination resistors resistance
Red circled resistors resistance should be 75R +/- 1%
Picture 113
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953GS-5HnT series RouterBoards
RB953GS-5HnT-RP
Picture 114
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Schottky diode measuring with multimeter in diode mode
Schottky diode reference numbers are D101, D102, D104; Schottky diode quality measurement method
describe on page 7
Picture 115
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Voltage drop between TR1 pins and Ground.
Check voltage drop between TR1 Ethernet Transformers pins and Ground. Ether Pins aremarked with red circles. It should be in the range from 0,32V to 0,589V. Measure in diode mode:hold “positive” wire on the Ground and “COM” wire to marked TR1 Transformers pins.
Picture 116
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75R Termination resistors resistance.
Resistor resistance, marked with red arrow, should be 75 Ohm +/- 1%
Picture 117
On ports Ether2 – Ether3 You can take patch cord and plug it into the routerboard, and then measure as describe on page 9
86 Latest Checking procedure for over-voltage damage available at www.mikrotik.com
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2011 series RouterBoards
List of RB2011 series RouterBoards:
Picture 118
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Disassembling information
Indoor 2011 series RouterBoards
Picture 119
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Rackmount 2011 series RouterBoard
Picture 120
Picture 121
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Schottky diode measuring with multimeter in diode mode
Schottky diode reference numbers is D2; Diode bridges reference numbers are D6, D4. Schottky diode
quality measurement method describe on page 7
Picture 122
Voltage drop between Ethernet transformers pins and Ground.
Check voltage drop between Transformer TR100, TR101 and TR102 pins and Ground.
It should be in the range from 0,32V to 0,438V. Measure in diode mode: hold “positive” wireon the Ground and “COM” wire to marked Transformers pins
Picture 123
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Termination resistors resistance in RJ-45 connector
Red circled resistors resistance should be 75Ohm +/- 1%
Picture 124
On ports Ether2 – Ether10 You can take patch cord and plug it into the routerboard, and then measure as describe on page 9
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3011 series RouterBoards
List of RB3011 series RouterBoards:
RB3011UiAS-RM
Picture 125
Disassembling information
Rackmount 3011 series RouterBoard
Picture 126
Picture 127
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Schottky diode measuring with multimeter in diode mode
Schottky diode reference numbers are D2, D6;
Schottky diode quality measurement method describe on page 7
Picture 128
Voltage drop between Ethernet transformers and Ground.
Check voltage drop between Transformers TR1100, TR1101, TR1200 and TR1202 pins and Ground. It should be in the range from 0,32V to 0,438V. Measure in diode mode: hold “positive” wire on the Ground and “COM” wire to marked Transformers pins.
Picture 129
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Termination resistors resistance
Resistors marked with red arrows resistance should be 75Ohm +/- 1%
Picture 130
On ports Ether2 – Ether9 You can take patch cord and plug it into the routerboard, and then measure as describe on page 9
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cAP series RouterBoards
RBcAP series:
cAP 2n
Picture 131
Picture 132
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Disassembling information
cAP 2n disassembling
1. step
Push the outer edge around clips to open the case
Picture 133
2. step
Remove cover and take out the board from case
Picture 134
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Schottky diode measuring with multimeter in diode mode
Schottky diode reference numbers are D1, D3. Schottky diode quality measurement method describe on page 7
Picture 135
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Voltage drop between TRF1 pins and Ground.
Check voltage drop between TRF1 Ethernet Transformers pins and Ground. Ether Pins are marked with red arrows. It should be in the range from 0,32V to 0,478V. Measure in diode mode:hold “positive” wire on the Ground and “COM” wire to marked TRF1 Transformer pins.
Picture 136
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75R Termination resistors resistance.
Resistor resistance, marked with red arrow, should be 75 Ohm +/- 1%
Picture 137
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CCR1009 series RouterBoards
List of CCR1009 series RouterBoards:
CCR1009-8G-1S-1S+PC
Picture 138
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Disassembling information
CCR1009-8G-1S-1S+
Picture 139
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CCR1009-8G-1S-1S+PC
Picture 140
Picture 141
Picture 142
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Picture 143
Picture 144
Picture 145
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Schottky diode measuring with multimeter in diode mode
Schottky diode reference numbers is D1401, D1402, D1403, D1405. Schottky diode quality measurement
method describe on page 7
Picture 146
Voltage drop between Ethernet pins and Ground.
Check voltage drop between internal Ethernet Transformers on ports Ether2 – Ether8 pins and Ground. It should be in the range from 0,32V to 0,438V. Measure in diode mode: hold “positive” wire on the Ground and “COM” wire to marked Ethernet pins.
Picture 147
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For Ether1 measure voltage drop on TR6 Pins and Ground. It should be in the range from 0,32V to0,438V. Measure in diode mode: hold “positive” wire on the Ground and “COM” wire to
marked Transformers TR6 pins.
Picture 148
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Termination resistors resistance in RJ-45 connector
Red circled resistors resistance should be 75Ohm +/- 1%
Picture 149
On ports Ether1 – Ether7 You can take patch cord and plug it into the routerboard, and then measure as describe on page 9
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CCR1016-12G, CCR1036-12G series
List of Cloud Core Router CCR1016-12G, CCR1036-12G series:
Picture 150
CCR1036-12G-4S
CCR1036-12G-4S-EM
Picture 151
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Disassembling information
Picture 152
Picture 153
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Voltage drop between diode array pin#1 and Ground.
Check voltage drop between diode arrays pin#1 and Ground. Diode arrays are circled red. It should be in the range from 0,32V to 0,438V. Measure in diode mode: hold “positive” wire on the Ground and “COM” wire to marked diode arrays pin#1.
Picture 154
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Termination resistors resistance in RJ-45 connector
Red circled resistors resistance should be 75Ohm +/- 1%
Picture 155
On ports Ether1 – Ether11 You can take patch cord and plug it into the routerboard, and then measure as describe on page 9
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CCR1036-8G-2S+ series
List of Cloud Core Router CCR1036-8G-2S+ series:
CCR1036-8G-2S+
CCR1036-8G-2S+EM
Picture 156
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Disassembling information
Picture 157
Picture 158
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Picture 159
Picture 160
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Voltage drop between Ethernet Transformers on ports and Ground.
Check voltage drop between internal Ethernet Transformers on ports Ether1 – Ether7 pinsand Ground. Ether Pins are circled red. It should be in the range from 0,32V to 0,438V. Measure in diode mode (hold “positive” wire on the Ground and “COM” wire to marked Ethernet
pins.
Picture 161
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CCR1072-1G-8S+ series
Cloud Core Router CCR1072-1G-8S+:
Picture 162
Disassembling information
Picture 163
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Voltage drop between capacitors and Ground.
Check voltage drop between capacitors and Ground. Capacitor pins are circled red. It should be inthe range from 0,31V to 0,438V. Measure in diode mode: hold “positive” wire on the Ground and “COM” wire to marked Capacitors pins.
Picture 164
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CRS109-8G-4S series RouterBoards
CRS109-8G-1S-2HnD-IN
Picture 165
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Disassembling information
1. Step: use PH2 screw driver to loose backside screws, take off cover.
Picture 166
2. step: take off cover carefully, pay a tension to LCD connector. Push up both side of LCD connector from slot with “-” screwdriver as shown in next pictures
Picture 167
3. Step: use “+” screw driver to loose 7 pcs PCB screws, than take off PCB from case.
Picture 168
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Schottky diode measuring with multimeter in diode mode
Schottky diode reference numbers are D3, D5, D11, D16, D17. Schottky diode quality measurement method
describe on page 7
Picture 169
Voltage drop between TR1200, TR1201 and Ground.
Check voltage drop between TR1200 and TR1201 Ethernet Transformers on ports Ether1 – Ether8 pins and Ground. Ether Pins are circled red. It should be in the range from 0,32V to 0,438V. Measure in diode mode: hold “positive” wire on the Ground and “COM” wire to
marked Transformers pins.
Picture 170
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75R termination resistors resistance
Resistors marked with red arrows should be 75Ohm +/- 1%
Picture 171
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CRS112-8G-4S series RouterBoards
CRS112-8G-4S-IN
Picture 172
Disassembling information
1. Step: use PH2 screw driver to loose backside screws, take off cover.
Picture 173
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2. step: take off cover carefully, pay a tension to LCD connector. Push up both side of LCD connector from slot with “-” screwdriver as shown in next pictures 215
Picture 174
3. Step: use “+” screw driver to loose 7 pcs PCB screws, than take off PCB from case.
Picture 175
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Schottky diode measuring with multimeter in diode mode
Schottky diode reference numbers are D3, D5, D11, D16, D17. Schottky diode quality measurement method
describe on page 7
Picture 176
Voltage drop between diode TR1200, TR1201 and Ground.
Check voltage drop between TR1200 and TR1201 Ethernet Transformers on ports Ether1 – Ether8 pins and Ground. Ether Pins are circled red. It should be in the range from 0,32V to 0,438V. Measure in diode mode: hold “positive” wire on the Ground and “COM” wire to
marked Transformers pins.
Picture 177
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75R termination resistors resistance
Resistors marked with red arrows should be 75Ohm +/- 1%
Picture 178
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CRS125-24G-1S series
List of Cloud Router Switch CRS125-24G-1S series:
CRS125-24G-1S-IN
Picture 179
CRS125-24G-1S-RM
Picture 180
CRS125-24G-1S-2HnD-IN
Picture 181
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Disassembling information
Picture 182
Picture 183
Picture 184
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Picture 185
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Schottky diode measuring with multimeter in diode mode
Schottky diode reference numbers is D1 and D5; Schottky diode quality measurement method describe on page 7
Picture 186
Voltage drop between Ethernet Transformers and Ground.
Check voltage drop between Transformers TRF1000, TRF1001, TRF1100, TRF1101, TRF1200 and TR1201 pins and Ground. It should be in the range from 0,32V to 0,438V. Measure in diode mode: hold “positive” wire on the Ground and “COM” wire to marked Transformers pins.
Picture 187
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Termination resistors resistance in RJ-45 connector
Red circled resistors resistance should be 75Ohm +/- 1%
Picture 188
On ports Ether2 – Ether24 You can take patch cord and plug it into the routerboard, and then measure as describe on page 9
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CRS210-8G-2S+ series RouterBoards
CRS210-8G-2S+IN
Picture 189
Disassembling information
1. Step: use PH2 screw driver to loose backside screws, take off cover.
Picture 190
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2. step: take off cover carefully, pay a tension to LCD connector. Push up both side of LCD connector from slot with “-” screwdriver as shown in next pictures 191
Picture 191
3. Step: use “+” screw driver to loose 7 pcs PCB screws, than take off PCB from case.
Picture 192
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Schottky diode measuring with multimeter in diode mode
Schottky diode reference numbers are D3, D5, D11, D16, D17. Schottky diode quality measurement method
describe on page 7
Picture 193
Voltage drop between TR1200, TR1201 and Ground.
Check voltage drop between TR1200 and TR1201 Ethernet Transformers on ports Ether1 – Ether8pins and Ground. Ether Pins are circled red.It should be in the range from 0,32V to 0,438V. Measure in diode mode: hold “positive” wire on the Ground and “COM” wire to marked
Transformers pins.
Picture 194
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CRS212-1G-10S-1S+ series RouterBoards
CRS212-1G-10S-1S+IN
Picture 195
Disassembling information
1. Step: use PH2 screw driver to loose backside screws, take off cover.
Picture 196
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2. step: take off cover carefully, pay a tension to LCD connector. Push up both side of LCD connector from slot with “-” screwdriver as shown in next pictures 228
Picture 197
3. Step: use “+” screw driver to loose 7 pcs PCB screws, than take off PCB from case.
Picture 198
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Schottky diode measuring with multimeter in diode mode
Schottky diode reference numbers are D5. Schottky diode quality measurement method describe on page 7
Picture 199
Voltage drop between TRF1200 and Ground.
Check voltage drop between TRF1200 Ethernet Transformers on ports Ether1 pins and Ground. Ether Pins are marked with red arrows. It should be in the range from 0,32V to 0,438V. Measure in diode mode: hold “positive” wire on the Ground and “COM” wire to marked TRF1200
Transformer pins.
Picture 200
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75R termination resistors resistance
Resistors marked with red arrows should be 75Ohm +/- 1%
Picture 201
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CRS226-24G-2S+ series RouterBoards
CRS226-24G-2S+IN
Picture 202
CRS226-24G-2S+RM
Picture 203
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Disassembling information
1. Step: use PH2 screw driver to loose backside screws, take off cover.
Picture 204
2. step: take off cover carefully, pay a tension to LCD connector. Push up both side of LCD connector from slot with “-” screwdriver as shown in next pictures
Picture 205
3. Step: use “+” screw driver to loose 7 pcs PCB screws, than take off PCB from case.
Picture 206
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Schottky diode measuring with multimeter in diode mode
Schottky diode reference numbers are D1, D4, D5. Schottky diode quality measurement method describe on page 7
Picture 207
Voltage drop between Ethernet Transformers and Ground.
Check voltage drop between TR1200 and TR1201 Ethernet Transformers on ports Ether1 – Ether8 pins and Ground. Ether Pins are circled red. It should be in the range from 0,32V to 0,438V. Measure in diode mode: hold “positive” wire on the Ground and “COM” wire to
marked Transformers pins.
Picture 208
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75R termination resistors resistance
Resistors marked with red arrows should be 75Ohm +/- 1%
Picture 209
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DynaDish series RouterBoards
RBDynaDish series:
DynaDish 5
Picture 210
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Disassembling information
DynaDish 5 disassembling
1. step
Picture 211
Unscrew 8 pcs screws with TX10 screwdriver and remove the antenna cover as shown in picture
2. step
Unscrew 4 pcs screws with TX10 screwdriver and remove the board from the antenna construction as shown in picture.
Picture 212
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Schottky diode measuring with multimeter in diode mode
Schottky diode reference number is D109; Diode bridge reference number is D111. Schottky diode quality
measurement method describe on page 7
Picture 213
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Voltage drop between TR1 pins and Ground.
Check voltage drop between TR1 Ethernet Transformers pins and Ground. Ether Pins aremarked with red arrows. It should be in the range from 0,32V to 0,487V. Measure in diode mode: hold “positive” wire on the Ground and “COM” wire to marked TR1 Transformer pins.
Picture 214
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FTC11 series RouterBoards
FTC
Picture 215
Disassembling information1. step: use screw driver to loose 1 pcs cover screw, then take off cover.
Picture 216
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2. step: use PH2 and TX8 screw driver to loose screws.
Picture 217
3. Step: take off cover with board.
Picture 218
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Schottky diode measuring with multimeter in diode mode
Schottky diode reference numbers D110, D112.
Schottky diode quality measurement method describe on page 7
Picture 219
Voltage drop between TR1 pins and Ground.
Check voltage drop between TR400 Ethernet Transformers on ports Ether1 pins and Ground. Ether Pins are marked with red arrows. It should be in the range from 0,32V to 0,438V. Measure in diode mode: hold “positive” wire on the Ground and “COM” wire to marked
TR1 Transformer pins.
Picture 220
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Groove 52HPn series RouterBoards
Groove 52HPn
Picture 221
Disassembling information
1. step: use screw driver to loose N-Male nut
Picture 222
4. Step: take off the board.
Picture 223
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Voltage drop between TR300 pins and Ground.
Check voltage drop between TR1000 Ethernet Transformers on ports Ether1 pins and Ground. Ether Pins are marked with red arrows. It should be in the range from 0,32V to 0,438V. Measure in diode mode: hold “positive” wire on the Ground and “COM” wire to marked TR300
Transformer pins.
Picture 224
75R termination resistors resistance
Resistors marked with red arrows should be 75Ohm +/- 1%
Picture 225
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hAP lite series RouterBoards
hAP lite
Picture 226
Picture 227
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1. Disassembling information
hAP lite horizontal case disassembling
1. step
Push “-” screwdrivers in case cavities.
Picture 228
2. step
Rotate screwdriver and pull both case parts.
Picture 229
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3. step
Open front case and take out the board.
Picture 230
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Horizontal case disassembling
Take off the cover with a screwdriver as shown in the picture186
Picture 231
Take out the board with a screwdriver as shown in the picture187
Picture 232
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Voltage drop between TR1 pins and Ground.
Check voltage drop between TR1 Ethernet Transformers pins and Ground. Ether Pins are marked with red arrows. It should be in the range from 0,32V to 0,48V. Measure in diode mode: hold “positive” wire on the Ground and “COM” wire to marked Transformers pins.
Picture 233
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mAP series RouterBoards
RBmAP series:
mAP 2n
Picture 234
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Disassembling information
mAP 2n disassembling
1. step
Push the white clip to open the case
Picture 235
2. step
Remove front case
Picture 236
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3. Step
Remove board from case
Picture 237
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Schottky diode measuring with multimeter in diode mode
Schottky diode reference numbers are D1, D7, D9, D11 on top layer. Schottky diode quality measurement
method describe on page 7
Picture 238
Schottky diode reference numbers are D2, D12 on bottom layer. Voltage drop value should be about 0,35V
Picture 239
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Voltage drop between J2 Pins and Ground.
Check voltage drop between J2 Ethernet Transformers on port Ether1, Ether2 pins and Ground. Ether Pins are marked with red arrows. It should be in the range from 0,32V to 0,438V. Measure in diode mode:hold “positive” wire on the Ground and “COM” wire to marked J2
pins
Picture 240
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Metal 5SHPn series RouterBoards
Metal 5SHPn
Picture 241
Disassembling information
1. step: use screw driver to loose N-Male nut
Picture 242
2. step: Removes the internal label
Picture 243
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3. step: use TX8 screw driver to loose screws.
Picture 244
4. Step: take off cover.
Picture 245
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Schottky diode measuring with multimeter in diode mode
Schottky diode reference numbers are D1702; Schottky diode quality measurement method describe on page 7
Picture 246
Voltage drop between TR1000 pins and Ground.
Check voltage drop between TR1000 Ethernet Transformers on ports Ether1 pins and Ground. Ether Pins are marked with red arrows. It should be in the range from 0,32V to 0,438V. Measure in diode mode: hold “positive” wire on the Ground and “COM” wire to marked
TR1000 Transformers pins.
Picture 247
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Metal 2SHPn series RouterBoards
Metal 2SHPn
Picture 248
Disassembling information
1. step: use screw driver to loose N-Male nut
Picture 249
2. step: Removes the internal label
Picture 250
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3. step: use TX8 screw driver to loose screws.
Picture 251
4. Step: take off cover.
Picture 252
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Schottky diode measuring with multimeter in diode mode
Schottky diode reference numbers are D1702; Schottky diode quality measurement method describe on page 7
Picture 253
Voltage drop between TR1000 pins and Ground.
Check voltage drop between TR1000 Ethernet Transformers on ports Ether1 pins and Ground. Ether Pins are marked with red arrows. It should be in the range from 0,32V to 0,438V. Measure in diode mode: hold “positive” wire on the Ground and “COM” wire to marked TR1000 Transformers pins.
Picture 254
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Metal 9HPn series RouterBoards
Metal 9HPn
Picture 256
Disassembling information
1. step: use screw driver to loose N-Male nut
Picture 257
2. step: Removes the internal label
Picture 258
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3. step: use TX8 screw driver to loose screws.
Picture 259
4. Step: take off cover.
Picture 260
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Schottky diode measuring with multimeter in diode mode
Schottky diode reference numbers are D1702; Schottky diode quality measurement method describe on page 7
Picture 261
Voltage drop between TR1000 pins and Ground.
Check voltage drop between TR1000 Ethernet Transformers on ports Ether1 pins and Ground. Ether Pins are marked with red arrows. It should be in the range from 0,32V to 0,438V. Measure in diode mode: hold “positive” wire on the Ground and “COM” wire to marked TR1000 Transformer pins.
Picture 262
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OmniTIK UPA-5HnD series RouterBoards
OmniTIK U-5HnD
OmniTIK UPA-5HnD
Picture 263
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OmniTIK UPA-5HnD disassembling information
1. step
Remove the screw stickers and unscrew the case base from the board holder with torque screwdriver T8
Picture 264
2. step
Remove the case base from the board holder
Picture 265
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Schottky diode measuring with multimeter in diode mode
Schottky diode reference numbers are D4, D802, D804, D806, D808. Schottky diode quality measurement
method describe on page 7
Picture 266
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Voltage drop between TR102 pins and Ground.
Check voltage drop between TR102 Transformers pins and Ground. Ether Pins are marked with red. It should be in the range from 0,32V to 0,589V. Measure in diode mode: hold “positive” wire on the Ground and “COM” wire to marked TR102 Transformer pins.
Picture 267
75R Termination resistors resistance.
Resistor resistance, marked with red arrow, should be 75 Ohm +/- 1%
Picture 268
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SXTG-2HnD series RouterBoards
SXT 2 series:
SXT 2
Picture 269
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Disassembling information
SXT series disassembling
1. step
Use two “-” screwdrivers. Push screwdrivers in case cavities.
Picture 270
2. step
Rotate screwdriver and pull both case parts.
Picture 271
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3. step
Remove rubber bushing
Picture 272
4. step
Push back Plastic PCB holders and take out the board.
Picture 273
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Schottky diode measuring with multimeter in diode mode
Diode bridges reference numbers are D4, D6.
Schottky diode quality measurement method describe on page 7
Picture 274
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Voltage drop between TR100 pins and Ground.
Check voltage drop between TR100 Ethernet Transformers pins and Ground. Ether Pins are marked with red arrows. It should be in the range from 0,32V to 0,48V. Measure in diode mode: hold “positive” wire on the Ground and “COM” wire to marked TR100 Transformer
pins.
Picture 275
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SXTG-5HPnD series RouterBoards
RBSXTG-5HPnD series:
SXT HG5
Picture 276
SXT SA5
Picture 277
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Disassembling information
SXT series disassembling
1. step
Use two “-” screwdrivers. Push screwdrivers in case cavities.
Picture 278
2. step
Rotate screwdriver and pull both case parts.
Picture 279
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3. step
Remove rubber bushing
Picture 280
4. step
Push back Plastic PCB holders and take out the board.
Picture 281
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Schottky diode measuring with multimeter in diode mode
Schottky diode reference numbers are D404, D405 . Schottky diode quality measurement method describe on page 7
Picture 282
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Voltage drop between TRF401 pins and Ground.
Check voltage drop between TRF401 Ethernet Transformers pins and Ground. Ether Pinsare marked with red arrows. It should be in the range from 0,32V to 0,48V. Measure in diode mode: hold “positive” wire on the Ground and “COM” wire to marked TRF401 Transformer
pins.
Picture 283
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75R Termination resistors resistance.
Resistor resistance, marked with red arrow, should be 75 Ohm +/- 1%
Picture 284
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SXTG-5HPacD series RouterBoards
RBSXTG-5HPacD series:
SXT 5 ac
SXT SA5 ac
Picture 285
SXT HG5 ac
Picture 286
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Disassembling information
SXT series disassembling
1. step
Use two “-” screwdrivers. Push screwdrivers in case cavities.
Picture 287
2. step
Rotate screwdriver and pull both case parts.
Picture 288
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3. step
Remove rubber bushing
Picture 289
4. step
Push back Plastic PCB holders and take out the board.
Picture 290
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Schottky diode measuring with multimeter in diode mode
Schottky diode reference numbers are D201, D203 . Schottky diode quality measurement method describe on page 7
Picture 291
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Voltage drop between TR1 pins and Ground.
Check voltage drop between TR1 Ethernet Transformers pins and Ground. Ether Pins aremarked with red arrows. It should be in the range from 0,32V to 0,48V. Measure in diode mode: hold “positive” wire on the Ground and “COM” wire to marked TR1 Transformers pins.
Picture 292
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SXTLite2 series RouterBoards
RBSXTLite2 series:
SXT Lite2
Picture 293
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Disassembling information
SXT series disassembling
1. step
Use two “-” screwdrivers. Push screwdrivers in case cavities.
Picture 294
2. step
Rotate screwdriver and pull both case parts.
Picture 295
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3. step
Remove rubber bushing
Picture 296
4. step
Push back Plastic PCB holders and take out the board.
Picture 297
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Schottky diode measuring with multimeter in diode mode
Schottky diode reference numbers are D5 . Schottky diode quality measurement method describe on page 7
Picture 298
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Voltage drop between TRF400 pins and Ground.
Check voltage drop between TRF400 Ethernet Transformers pins and Ground. Ether Pinsare marked with red arrows. It should be in the range from 0,32V to 0,48V. Measure in diode mode: hold “positive” wire on the Ground and “COM” wire to marked TRF400 Transformer
pins.
Picture 299
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75R Termination resistors resistance.
Resistor resistance, marked with red arrow, should be 75 Ohm +/- 1%
Picture 300
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SXTLite5 series RouterBoards
RBSXTLite5 series:
SXT Lite5
Picture 301
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Disassembling information
SXT series disassembling
1. step
Use two “-” screwdrivers. Push screwdrivers in case cavities.
Picture 302
2. step
Rotate screwdriver and pull both case parts.
Picture 303
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3. step
Remove rubber bushing
Picture 304
4. step
Push back Plastic PCB holders and take out the board.
Picture 305
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Schottky diode measuring with multimeter in diode mode
Schottky diode reference numbers are D5 . Schottky diode quality measurement method describe on page 7
Picture 306
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Voltage drop between TRF400 pins and Ground.
Check voltage drop between TRF400 Ethernet Transformers pins and Ground. TRF400 Pins are marked with red arrows. It should be in the range from 0,32V to 0,48V. Measure in diode mode: hold “positive” wire on the Ground and “COM” wire to marked TRF400
Transformer pins.
Picture 307
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75R Termination resistors resistance.
Resistor resistance, marked with red arrow, should be 75 Ohm +/- 1%
Picture 308
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SXT LTE series RouterBoards
RBSXT LTE series:
SXT LTE
Picture 309
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Disassembling information
SXT series disassembling
1. step
Use two “-” screwdrivers. Push screwdrivers in case cavities.
Picture 310
2. step
Rotate screwdriver and pull both case parts.
Picture 311
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3. step
Remove rubber bushing
Picture 312
4. step
Push back Plastic PCB holders and take out the board.
Picture 313
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Schottky diode measuring with multimeter in diode mode
Schottky diode reference number is D300 . Schottky diode quality measurement method describe on page 7
Picture 314
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Voltage drop between TR300 pins and Ground.
Check voltage drop between TR300 Ethernet Transformers pins and Ground. Ether Pins are marked with red arrows. It should be in the range from 0,32V to 0,48V. Measure in diode mode: hold “positive” wire on the Ground and “COM” wire to marked TR300Transformer
pins.
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75R Termination resistors resistance.
Resistor resistance, marked with red arrow, should be 75 Ohm +/- 1%
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wAP series RouterBoards
wAP
Picture 317
Disassembling information1. step: use screw driver to loose 1 pcs cover screw, then take off cover.
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2. step: use PH2 and TX8 screw driver to loose screws.
Picture 319
3. Step: take off cover with board.
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Schottky diode measuring with multimeter in diode mode
Schottky diode reference numbers are D1, D2, D4; Diode bridges reference numbers is D5. Schottky diode quality measurement method describe on page 7
Picture 321
Voltage drop between TR1 pins and Ground.
Check voltage drop between TR400 Ethernet Transformers on ports Ether1 pins and Ground. Ether Pins are marked with red arrows. It should be in the range from 0,32V to 0,438V. Measure in diode mode: hold “positive” wire on the Ground and “COM” wire to marked TR1 Transformer pins.
Picture 322
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