saleem trabelsoting nots 14
TRANSCRIPT
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ING
tinue
ontinue
RKING OR NOT
rly or notnect another slot
rly or not
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First we have to check front panel connecters, connected ornot (restart &shut down button)
Remove 1&2 and connect 2&3 just switch on& switch off thesystem and connect 1&2
EXTENDED DOS PARTITION is not deltingit willdisplay
S not displaying
mary master)
Now we can delete EXTENDED DOS partition afterdeleting partition EXIT from
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bootable cd (or)
o continue
tem disk
First we have to check power supply cable and data cable connectedProperly or not
Maybe data cable problem OR HDD problem
Fix bad sectors with the help of another HDD or 3rd party software(Partition magic)
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ode
Again it is opened in SAFE MODE then opens in SAFE MODECheck any files are available in recycle bin select all files and restore
Restart the system press F8 continuously andSelect 5th option (5--command prompt only)
003
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cable)
98 O/S
S setup
e)
Problem 13:-CD-ROM ICON is not available in XP 2000, 2003 O/S
Solution 1First we have to check CD-ROM is detected or not in CMOS Setup.If it is detected then go to MY Computer Right click properties click DeviceManager select computer name and select scan for hardware changes
Solution-2We have to install ATAPI CD-ROM Drivers.
Problem-14Floppy Disk is not working.
Solution-1First we have to check power cable and IDE Cables are connectedProperly or not.
May be we placed the power cable in reverse position.
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May be Data Cable problem or power cable problem.
Problem-15Audio is not working.
Solutoin-1First we have to check speakers connected properly or not.
Then we have to check Drivers installed properly or not.
Solution-2Restart the system Go to CMoS Setup
Select integrated Peripherals (Feature Setup)
Select AC97 Audio (Enable)Press F10 (y) Enter.
Solution-3Install Audio Drivers Again.
Problem 16Suddenly in XP, 2000, 2003 is hanged or not login
Solution-1
Restart the system.Press F8 continuously.
Select last known Good configuration.
Press Enter.
Solution2Restart the system open in SAFE MODE One if any files areavailable in recycle bin. Select all and restore.
Problem-17In Windows XP, 2000 2003 after Booting we are not getting
Desktopbut Monitor light is blinking .
Solution-1Restart the system.
Press F8 continuously
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Select ENABLE VGA MODE.
Problem-18All applications are not running properly in xp, 2000, 2003
Solution-1Restart the system insert O/S CD in the CD-Rom.Boot with CD
After Few minutes we will get
Enter =ContinueR=Repair
F3= Exit or Quit.
Press R to Repair the osPress F8 I Agree
Now we will getESC= New installationR = Repair
F3 = Quit
Press R repairs the Operating system.
Problem-19In XP, 2000, 2003 after logged in we are not getting desktop icons andtask bar also.
Solution-1Press Ctrl + Alt + Del.Click Task Manager.
Click New Task.Type Explorer.Exe
Press Enter.
Solution 2Restart the system
Press F8 continuously
Select last known Good configuration Enter 2 time.
Solution-3Repair O/s with O/s Bootable CD.
Problem 20Operating system is running slowly.
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Solution 1First we have to remove temp files. Cookies Event viewers etc.
We have to check virus is available in O-S remove virus with thehelp of
any antivirus software
To remove temporary file & cookies etc:-Start
Run%Temp%
Select all delete.
StartRun
Type CookiesSelect all file and delete.Start
Run
Type RecentSelect all delete
SOLUTON-2We have to check O\S drive having less capacity
Problem-21
O\S is continuously hanged.Soluton-1
Check the processor fan moving or notCheck the motherboard is touching to cabinet
Problem22:-NTLDR is missing press Ctrl Alt Del to
restart
Solution:1
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Restart the system insert O/S CD in the CD-Rom.
Boot with CDAfter Few minutes we will get
Enter =Continue
R=RepairF3= Exit or Quit.
Press R to Repair the osPress F8 I Agree
Now we will get
ESC= New installationR = Repair
F3 = QuitPress R repairs the Operating system.
Trouble shooting inSMPS:1.A/C fuse blow off:
First check bridge rectifier (4 diodes).
Check the capacitors in Bridge rectifier(1KV)
Check the main filter capacitors.
Check the switching transistors.
2.NO
Trouble shooting in SMPS:
A/C fuse blows off:
First check bridge rectifier.
Check the capacitors in Bridge rectifier(1KV)
Check the main filter capacitor
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Check the Switching transistor.2.No power supply,No display,dead:
First check the power cable
Check the fuse Check the bridge rectifier
Check the bridge rectifier to filter section middle of the components(resistors)
Check the output transistors
Check the oscillator & error amplifier I.C if any related components defectivereplace it.
Check the output capacitors
Check the horizontal output transistor and LOT.
Check the horizontal driver transistor.3.Output is low:
Check the bridge rectifier
Check the filter capacitors
Check the oscillator and error amplifier related components and I.C.
Check the oscillator and error amplifier to switching transistor base.
Check the output bridge rectifier4.Output high current:
Check the oscillator and error amplifier I.C and related components.Checking process:
1. check the output voltages i.e 95v,25v,18v,12v,5v if output voltage isnot coming first check the bridge rectifier and main filter capacitor(300v)
2. check the switching transistor3. finally check the oscillator and error amplifier related
components(transistor,diode,zenar diode,resistor)Components in powersupply section:
1. line filter.2. bridge rectifier3. main capacitor(220micro farad/400v)4. transistor or I.C. cum transistor or FET or STR with I.C.5. opto coupler6. oscillator I.C7. S.M Transformer
8. output diodes9. output capacitors10. Resistors,capacitor,diode variable capacitor,polarized capacitors,zenar
diode,coil,thermister,relay.
Trouble shooting of
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Microprocessor:1. set dead:
check the power supply section check the all voltages in power supply
check the voltage regulators(5v)
check the 5v path(microprocessor,memory I.C,keyboardconnector)
check the relay
from microprocessor to powersupply check all switchingtransistor
check all components surrounding of microprocessor2.Monitor in standby mode.:
check 5v supply check the switching transistor between micro processor and
relay and check the relay
check the stand by transistor
check from data cable connector to micro process
check the Horizontal & Vertical signal input section
check the memory I.C3.Low brightness:
check the keypad (front panel)working or not
check the 5v supply for front panel keypad
check the micro switches in front panel
From microprocessor to G1 check all between components
Check the memory or replace the memory I.C
Check the sub brightness controller4.Reset problem:
Check the 5v supply for memory I.C
Check the reset transistors and related components
Check the zener diode in Memory I.C to microprocessorcontrolling section
Check and replace microprocessor or Memory I.C.
Trouble shooting ofOscillator & Horizontaldriver output section:
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1.No display:
Check the output transistor
Check the horizontal driver transformer
Check the voltages in driver transformer
Check the driver transistor base to oscillator I.C in betweenany components is defective replace it
Check the voltage of oscillator I.C
Finally replace the I.C2.Width less picture:
Tracing from data cable to horizontal output,in between anycomponent is defective replace it
Tracing from horizontal output to horizontal deflectioncoil(yoke)
Replace the LOT3.Jung picture:
Replace the LOT.4.Horizontal holding problem:
Check theoscillator I.C
Check the components in oscillatorsection(resistor,capacitor,transistor,diode,preset or variableresistor)
5.Horizontal folding problem:
Confirm the problem (Micro processor section/Horizontal
section) Check the horizontal output to horizontal deflection coil.If any
component is defective replace it(polarized/non polarizedcapacitors,resistors,coils).
Trouble shooting of verticalsection:1.Single horizontal line:
Check the voltage of vertical I.C.12v,15v,18v,22v,25v,33v,
Check the surrounding components in vertical section (I.C) Check the vertical I.C to vertical deflection coil connection,in
between any component is defective replace it
Check the oscillator I.C2.V-Hold problem:
Check the presets in vertical section(preset alignment)
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Check the vertical oscillator section and oscillator I.C if anycomponent is defective replace it.
Replace the oscillator I.C
3.Vertical folding problem: Check the vertical output capacitors
Check the vertical I.C surrounding capacitors
Check the vertical to vertical deflection in between anycapacitor is defective replace it
Check the resistors4.Scope picture:
Check the preset alignment in vertical section
Check the vertical section capacitors
Replace the vertical I.C5.Height increase problem:
Check the preset alignment in vertical section
Check the resistors in vertical section
Check the capacitors
Replace the vertical I.C
Trouble shooting of Video
Amplifier ,video driver,video output
section:1. No dispay:
Check the power supply
Video driver
Video output
Check the output transistor
Check the CRT base2.Secondary colors: (Magenta,cyan,yellow):
Note: Any transistor open output will be secondary colors(video
amplifier,video driver,video output) Check the dry solder in CRT base ,dry solder the board.
First check CRT base then replace & reinstall the CRT base
Check the data cable cable (Input/Output connectors)4.Only blue colors with retrace lines:
Check the output transistors(blue)
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Check the surrounding components output transistors
Check the CRT base.
Note: If I.C is given replace the I.C.