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1/40 1. Block Diagram of VSC main 2. Block Diagram of STB main 3. IC SPEC

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Page 1: Curso de Tv Plasma Part_2

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1. Block Diagram of VSC main2. Block Diagram of STB main3. IC SPEC

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MT-40PA10 VSC Board Block DiagramMT-40PA10 VSC Board Block Diagram

Chip for flat panel display applicationVGA XGA scale up/down

Display Processor & Scan Rate Converter(Format Converter)

Interlace to Progressive15KHz 31KHz(2H X 1V)

P101V/R/L

DS102

IC203VPC3230Decoder

80Pin

IC203VPC3230Decoder

80Pin

3

Y,Cb,Cr

CVBS(A)

1IC204

SDA9410Deinterlace &

D/A100Pin

IC204SDA9410

Deinterlace &D/A

100Pin

8 LU0-7

8 CHR0-7

IC303CXA2101AQ

Video&Chroma80Pin

IC303CXA2101AQ

Video&Chroma80Pin

5

PC-R/G/B/HS/VS (A)5

DTV-Y/Pb/Pr (A)

3 TV-Y/U/ V/HS/VS(A)

5

IC304THS8083100Pin

IC304THS8083100Pin

3 CXA-R/G/B(A )

IC401MX88L284

3X2M Scan converter

208Pin

IC401MX88L284

3X2M Scan converter

208Pin

IC001M37270

EEPROMMicro-Com

IC001M37270

EEPROMMicro-Com

IC4032M

SDRAM

IC4022M SDRAM

(R/G/B)(D)

CAX-HS/VS

2

16D0-16

A0-10 D16-3111 16

OSD_R/G/B/YS4

IC50174F541

IC50274F541

IC50374F541Buffer

OSD_HS/VS2

HS/VS_OUT

2

8 DOR0-7

8 DOG0-7

8 DOB0-7

STB-POWERVSC DET/POWERHDSTB_DETSTB_SCL/SDAANA_STB_DET

7 PVS/PHS_OUT2

PAR0-7

8

PAG0-7

8

8

PD501(41Pin)

PDP Module(D)

3X8

D-sub

25

D-sub

15

(A)

P601L/R

I²C

IC203,204,303,304,407

IC00224C16IC00224C16 IC407

SC786102DWIC407

SC786102DW

HS/VS

SDA2SCL2

DS101

STB-R/G/B/HS/VS(A)

IC50474F541

PAB0-7

Comb Filter Video ProcessCVBS(Composite Video Baseband Signal) Input to Y/C(Y,U,V) Output

Multi-Component Processor(Baseband Video Signal Processor)

STB, PC, DTV, TV signals Input to Analog R/G/B Output

Triple 8Bit, 80MSPS, 3.3V Video&Graphic Digitizerwith Digital PLL

Analog R/G/B Input to 3X8 Digital R/G/B OutputP102DVD

IC602CXA2022S

(Tone Control)

IC602CXA2022S

(Tone Control) 2 2L/R

IC604LA7222

(Audio S/W)

IC604LA7222

(Audio S/W)STB/PC/DTV1

AV/DVD/DTV2

2L/R

IC603LA4282

Audio Amp.(12Wx2)

IC603LA4282

Audio Amp.(12Wx2)

P007A(Spk. Jack)

L/R

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RT- BA10 STB Main Block DiagramRT- BA10 STB Main Block Diagram

TUNER

(RCA JACK)

※ AUDIOCOMMON USE

L/R(TV)

L/R

IF ICTDA4474

DC5V

IF ICTDA4474

DC5V

SVHS

AV3

PC- IN

PC Audio(Stereo)

SCL-A

S DA -A

7input/3outputideband video Amp(20MHz, -3dB)

Y/C mix circuitA/V switch featuring I2C BUS

R/G/B/HS/VS(A) w

TUNER

CXA2069Q

A/V SW

DC 12V

CXA2069Q

A/V SW

DC 12V

V, L/R

CVBS

V, L/R

* SCART2 : HALF * RCA Jack

Common Use*PCB LayOut)

AV2

MNTOUT

V, L/R

TV, L/R

(SCART1: FULL)

TVOUT

AV1

Y / C

MSP3411G

SoundProcessor

DC 8V

MSP3411G

SoundProcessor

DC 8V

2’ndSIF

L / R OUT

CXA2101AQRGB

ProcessorDC9V

CXA2101AQRGB

ProcessorDC9V

R/G/BHS/VS(A)

DS 701(25PinCable)

SCL-A/DSDA-A/D

910

Multi-Com onent ProcessorAnalog R/G/B Output

Input select switch for high definition display

Internal broadband RGB s/w

2001.4.27 PHIL KIM

SCL-ASDA-AI2C P801

7PIN

IC 001M37272u-COM

IC 001M37272u-COM

KEY-1

KIN

KOUT

SCL-ASDA-A

PC- OUT

I 2C

RF

(RCA JACK)

L/R

CVBS1/Y

C TPU3052STELETEXT

DC5V

TPU3052STELETEXT

DC5V

VPC3230DMAIN

[ADDR: 47]Video

ProcessorDC 6V

VPC3230DMAIN

[ADDR: 47]Video

ProcessorDC 6V

C

DVD Y/Cr/Cb(A)

VPC3230DSUB

[ADDR: 44]Video

ProcessorDC6V

VPC3230DSUB

[ADDR: 44]Video

ProcessorDC6V

FB

SDA94101H/1V=> 2H/ 1VDW / PIP / MPIP

DC 3.3V

SDA94101H/1V=> 2H/ 1VDW / PIP / MPIP

DC 3.3V

p

DTV Y, Pb, Pr (A)

H V

CVBS2/Y

R/G/BHS/VS(A)

R/G/BHS/VS(A)

BA7657FRGBS/W

DC 5V

BA7657FRGBS/W

DC 5VI2CSCL-ASDA-AI2C

SCL-DSDA-DI2C

SCL-ASDA-A I2C

CVBS.3 RGB

EXT_RGB

81V04160FIFO

Memory

81V04160FIFO

Memory

WE

RE

DVD/DTV

Y/ C/HS/VS (D)

I2CSCL-DSDA-D

SCL-DSDA-D

I2C

Comb filter video processorTV Signal to Digital Y/Cr/CbMulti-standard color decoder

A/D converterFormat converter

Interlace to Progressive

7input/3outputwideband video Amp(20MHz, -3dB)

Y/C mix circuitA/V switch featuring I2C BUS

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VPC 3230 Comb Filter Video ProcessorVPC 3230 Comb Filter Video Processor

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Description

The VPC3230xD/324xD is a high quality, single-chip video front-end, which is targeted for 4:3 and 16:9, 50/60 and 100/120Hz TV sets. It can be combined with other members of the DIGIT3000 IC family (such as DDP 33x0A/B, TPU 3040) and/or it can be used with 3rd-party products.

Features

Four CVBS, one S-VHS input, one CVBS output

Two RGB/YCrCb component inputs, one Fast Blank(FB) input

High-performance adaptive 4H comb filter Y/C separator with adjustable vertical peaking

Multi-standard color decoder PAL/NTSC/SECAM including all substandards

One 20.25MHz crystal, few external components

6V supply voltage

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SDA9410 Display Processor & Scan Rate ConverterSDA9410 Display Processor & Scan Rate Converter

Description

The SDA 9410 is a new component of Siemens MEGAVISION IC set, which enables the system to reduce large area and line flickering of interlaced TV standards.

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74F5413-state Buffer74F541

3-state BufferSDA9410Display Processor & Scan Rate Converter

Features

Digital interlaced Y/C input,

progressive analog Y/U/V output

High performance scan rate converter

4:2:2 luminance and chrominance

parallel (2x8 wires)

Scan rate conversion

- Motion compensated 100/120 Hz interlaced scan conversion

- Motion compensated 50/60 Hz progressive scan conversion

D/A converters

- 9 bit amplitude resolution for Y, -(R-Y), -(B-Y) output

3.3V + 5% supply voltage

DescriptionThe 74F541 are octal buffers that are ideal for driving bus lines or buffer memory address registers. The outputs are capable of sinking 64mA and sourcing up to 15mA, producing very good capacitive drive characteristics. The devices feature input and outputs on opposite sides of the package to facilitate printed circuit board layout.

FeaturesHigh impedance NPN base inputs for reduced loading (20uA in High and Low states)

Octal bus interface

3-state buffer outputs sink 64mA

15mA source current

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THS8083 Video&Graphics Digitizer with Digital PLLTHS8083 Video&Graphics Digitizer with Digital PLL

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Description

THS8083 is a complete solution for the digitalizing of video & graphic signals in RGB or YUV/YCbCr color spaces. The device supports pixel rates up to 80 MHz to 95 MHz, depending on the speedgrade of the device

Features

Three digitalizing channels, each with independently controllable Clamp, PGA and ADC

ADC: 8 bit 80MSPS

Support for 4:4:2 and 4:2:2 (ITU.BT-601 style output modes to reduce board traces and video ASIC’S

Fully integrates digital PLL(including loop filter) for pixel clock generation

3.3V supply voltage

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CXA2101AQ Multi-Component Processor (Base Band Video Signal Processor IC)

CXA2101AQ Multi-Component Processor (Base Band Video Signal Processor IC)

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Description

The CXA2101AQ is a bipolar IC which integrates the following functions on a single chip; base band signal processing, RGB signal processing , and video switching for 4 systems (including HV sync signal processing) using Y/Cb/Cr inputs.

It was developed for multiscan TVs, and enables high-end TV systems to be configured.

Features

On-chip video switching for 4 systems

Y/Cb/Cr input for one system, external Y/Cb/Cr input for 1 system

Analog RGB input for 2 systems

Normal, PAL-FF, HD-TV supported

9V supply voltage

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MX88L284 Scan ConverterMX88L284 Scan Converter

Description

The MX88L284 is a highly integration chip for Flat Panel Display application. With Macronix’s Smartscaling – 2 filter, it provides high quality scaled video image and format conversion.

General features

Converts NTSC/PAL and PC video signal into flat panel display device timing and resolution.

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Built-in OSD generator with 64 ROM fonts, and 64 programmable RAM fonts.

Support configurable SDRAM/SGRAM(x0 x1 and x2) for different resolution to minimize the system cost.

Input

PC Video up to 1024x768 @ 85Hz operation mode

Support YCrCb422,RGB888 mode (interlaced and Non-interlaced)

Support input H/V sync. Polarity and odd/even field detection

Support digital input capability

Support SDRAM/SGRAM x0x1 and x2 configuration

3.3V power supplier

Output

Support following resolution and frequency

Single (18/24) and Dual (36/48) bit RGB data output

Support OSD MUX capability for On-Screen-Display chip input

Built-in OSD generator

CPU Interface

Support direct 8 bit uP interface and serial bus (high-speed) interface

10825~8032.5~60Dot clock (MHz)

6050~7550~75Vertical frequency (Hz)

6420~7022~55Horizontal frequency

1280x10241024x768800x600 (SD)Resolution

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SDRAM-KM416S1020CSDRAM-KM416S1020CDescriptionThe KM416S1021C is 16,777,216 bits synchronous high data rate

Dynamic RAM organized as 2 x 524,288 words by 16 bits, fabricated with high performance CMOS technology. Synchronous design allowsprecise cycle control with the use of system clock I/O transactions are possible on every clock cycle. Range of operating frequencies, programmable burst length and programmable latencies allow the same device to be useful for a variety of high bandwidth, high performance memory system applications.

FeaturesJEDEC standard 3.3V power supplySSTL_3 (Class II) compatible with multiplexed addressDual banks operationMRS cycle with address key programs- CAS latency (2 & 3)- Burst length (1, 2, 4, 8 & Full page)- Burst type (Sequential & Interleave)All inputs are sampled at the positive going edge of the system clock.Burst read single-bit write operationAuto & self refresh64ms refresh period (4K cycle)

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CXA2022I2C Bus Sound Processor for TV

CXA2022I2C Bus Sound Processor for TV LA4282

2-channel 10w AF Power Amplifier for Use in Home Stereo, TV Applications

LA42822-channel 10w AF Power Amplifier

for Use in Home Stereo, TV Applications

Description

The CXA2022S is a bipolar IC designed as an IC bus control sound processor for TV.This IC has simulate stereo, surround, tone control, balance, volume, muting, AGC and other functions.

Description

The LA4282 is an IC which seals a high-output power amplifier for TVs and monitors in a compact package.

Features

Allows control I2c bus

Employs a special surround system to prevent “vocal missing” in the surround mode

Adopts an AGC circuit to absorb the difference in sound level between input sources and improves S/N ratio of hearing characteristics

14V supply voltage

Features

High-power 2-channel AF power amplifier

Low pop noise at the time if power supply ON/OFF

Good ripple rejection (58 db typ)

External muting available

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CXA2069S2-Compatible 7-Input 3-Output Audio/Video Switch TDA4474

Multistandard Video-IF and Quasi Parallel Sound Processing

Description

The TDA4474 is an integrated bipolar circuit for full multistandardvideo/sound IF(VIF/SIF) signal processing in TV/VCR and multimedia applications. The circuit processes all TV video IF signals with negative modulation (e.g. B/Gstandard), positive modulation(e.g. L standard) and the AM, FM/NICAM sound IF signals.

Description

The CXA2069Q is a 7-Input 3-Output Audio/Video Switch featuring I2C bus compatibility for TVs. This IC has input pins that are compatible with S2 protocol. Features

Four IF inputs (2xVIFin and 2xSIFin)

Very linear video demodulation, good pulse response and excellent inter modulation figures

VIF-AGC for negative modulated signals(peak sync. detection) and for positive modulation(peak white/black level detector)

Alignment-free quasi parallel sound(QPS) mixer for FM/NICAM sound IF signals

5V supply voltage; low power consumption

Features

7 inputs 3 outputs

4 inputs that are compatible with S2 protocol

Wide band video amplifier (20 MHz,-3 dB)

Y/C MIX circuit

Serial control with I2C bus

High impedance maintained by I2C bus lines (SDA, SCL) even when power id OFF

12V Supply voltage

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MSP 3411G Multistandard Sound Processor with Virtual Dolby SurroundMSP 3411G Multistandard Sound Processor with Virtual Dolby Surround

DescriptionThe MSP 34x1G family of single-chip Multistandard Sound Processors covers the sound processing of all analog TV-Standards worldwide, as well as the NICAM digital sound standards. The full TV sound processing, starting with analog sound IF signal-in, down to processed analog AF-out, is performed on a single chip.

The MSP4x1G has all functions of the MSP3401G with the addition of a virtual surround sound feature

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MSP 3411GMultistandard Sound

Processor with Virtual Dolby SurroundFeatures

Four Stereo SCART (line) inputs, one Mono input; two Stereo SCART output

Complete SCART in/out switching matrix

Standard Selection with single I²C transmission

Two selectable sound IF (SIF) inputs

Automatic Sound Selection (mono/stereo/bilingual), new registers MODUS, STATUS

3D-panorama virtualizer(approved by Dolby Laboratories) with noise generator

AVC: Automatic Volume Correction

Demodulation of the FM-Radio multiplex signal

8V power supply

BA7657FInput selector switch for high definition displays

DescriptionThe BA7657F is for high definition displays, and have internal switches for switching between broadband RGB signals and HD/VD signals, as well as an internal synchronization separator. These ICS simplify the designing of input units for deluxe displays

Features

Internal broadband RGB switch (frequency characteristics : 250MHz, -3dB)

Internal HD/VD switch

Internal synchronization separator for synchronizing signals superimposed onto G signals.

5V power supply

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Connection Diagram of MT-40PA10

6p X-B/D

POWER KEY

5V G 15V G N/C VA

CON304 6P

Angle - Type Wafer X-B/D

4p 9p

8P

41P

4PSPEAKER B/D

P8087P

P80912P

P8116P

P8104P

P8018P

P8066P

P802 4P P803 9P

P8056P

P8048P

P8076P

POWER

CN8012P

P004A7P

41P

P002A6P

P003A7P

P005A12PP006A

4P

P007A4P

VSCY-B/D

6p

8P

Z-B/D

Line FilterLine Filter

VA N/C G 15V G 5V

CON303 6P

7P CONTROL B/D

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Pin Detail of MT-40PA10

KET-INR-LEDG-LEDGNDSTBYGNDTX

41P

PD501

SCL-ESDA-ESCL-NSDA-N

FSGND

P002A

6PIN

AC-DETRL-ONSTBYGND

VAVS-ON5V-MNT

N/C

5V5V5V

GNDGNDGND12V12VGNDGNDN/CN/C30V30V

GN

DG

ND

GN

DR

-SPKG

ND

L-SPK

P004A

7PIN

P003A

7PIN

P005A

12PIN

P007A

4PIN

P006A

4PIN

GN

DG

ND

VSC

VSE

TU

P

5V5V5V5V

GNDGNDGNDGND

VAN/CGND15VGND5V

32V32VGNDGND

5VS5VS5VSGNDGNDGND12V12VGNDGNDN/CN/C

ACDRLY5V

GNDVsON5VDN/C

VAN/CGND15VGND5V

VS

VS

N/C

N/C

N/C

GN

D5VG

ND5V

VAN/C

GND15V

GND5V

VAN/C

GND15V

GND5V

5VGND5V

GNDN/CVSN/C

GND

CN801 2P

P801

8P

P806

6P

P811

6P

P810

4P

P809

12P

P808

7P

P801

8PP801

8P

VSC

CNTL

P804

8P

P805

6P

P807

6P

VSETUP CNTL

VS CNTL

PFC

ADJ

VA CNTL

5V CNTL

32V CNTL

VSC

CNTL

VSC POWER

: A Symbol of starting of the PIN number

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Connection Diagram of RT-BA10

P301B12PIN

P00112PIN

STB D-SUB B/D

P818B10PIN

P8708PINP302B

12PINP303B10PIN

P304B7PIN

P305B3PIN

P801M

P301A 12PIN P302A 12PIN P303B10PIN

P304B7PIN

P305B3PIN

STB - MAIN

12PINSTB-CONTROL B/D

STB-POWER

P801S

P810A10PIN

P870A8PIN

Lightning Wire

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Pin Detail of RT-BA10

12PINSTB-CONTROL B/D

S-DE

TG

ND

S-CIN

GN

DS-Y

ING

ND

VIN

3-VG

ND

VIN

3-LG

ND

VIN

3-R

KIN1KIN2KIN3

KOUT1KOUT2KOUT3

GNDR-LEDG-LEDGND5V

GND P301B12PIN

P302B12PIN

P303B10PIN

STB - MAIN

P870B8PIN

P818B10PIN

P00112PIN

POWGNDST5VGND6V

GND13VGND30VGND

S-WOOFERGND

OUT-LOUT-RGND

MUTEGND

DV

D-Y

GN

DD

VD

-PbG

ND

DV

D-Pr

GN

DD

VD

-LG

ND

DV

D-R

GN

DG

ND

GN

D

PC-B

GN

DPC

-GG

ND

PC-R

GN

DPC

-HS

GN

DPC

-VS

GN

D

PC-L

GN

DPC

-RG

ND

GN

D5V

GN

DK

OU

T

2

GN

D

P305B3PIN

P801M P304B7PIN

P810A10PIN

P870A8PIN

STB-POWER

P801M

POWGNDST5VGND6V

GND13VGND30VGND

S-WOOFERGND

OUT-LOUT-RGND

MUTEGND

STB D-SUB B/D

S-DE

TG

ND

S-CIN

GN

DS-Y

ING

ND

VIN

3-VG

ND

VIN

3-LG

ND

VIN

3-R

DV

D-Y

GN

DD

VD

-PbG

ND

DV

D-Pr

GN

DD

VD

-LG

ND

DV

D-R

GN

DG

ND

GN

D

PC-B

GN

DPC

-GG

ND

PC-R

GN

DPC

-HS

GN

DPC

-VS

GN

D

PC-L

GN

DPC

-RG

ND

GN

D5V

GN

DK

OU

T

2

GN

D

P301A12PIN

P302A12PIN

P303B10PIN

P304B7PIN

P305B3PIN

: A Symbol of starting

of the PIN number

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Trouble Shooting GuideX - Board COF Connector separationLift up the right and left of X-BOARD CONNECTOR.

When you handle COF CONNECTOR, don’t pressure. First release LOCK and separate.If COF CONNECTOR is damaged you should replace MODULE ASS’Y. so be aware of this!!

COF Connector

Lift up X-BOARD CONNECTOR and separate COP CONNECTOR by pulling up.

warningwarning

When you exchange X-Board, first you should separate COF Connector. Be careful not to damage it. COF Connector is attached to Module. Since COF Connector is torn, Module Ass’y must be replaced a new one. Be careful!

When you exchange X-Board, first you should separate COF Connector. Be careful not to damage it. COF Connector is attached to Module. Since COF Connector is torn, Module Ass’y must be replaced a new one. Be careful!

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X - Board Connector separationX - Board Connector separation

Lift up each edge of left/right. Lifted conditionBe careful to handle LOCK or it can be hurt. When LOCK is hurt, replace a new X-BOARD.

It’s easy to separate it by releasing Connector Lock .

Do not pressure. Be careful to handle LOCK or it can be hurt. When LOCK is hurt, replace a new X-BOARD

warningwarning

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Y - Board COF Connector separationY - Board COF Connector separation

Pull the white LOCK as shown in arrow

Pull the white LOCK as shown in arrow.

Separate COF CONNECTOR by pulling in the left.

warnignwarnign

Be careful to handle LOCK part and COF Connector when LOCK part is damaged, you should replace a new Y-Board. In case of COF Connector, Module Ass’y

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Z - Board COF Connector separationZ - Board COF Connector separation

Separate the fixed Screw of Z-Board..Pull out Lock as shown in arrow. warningwarning

Pull COF Connector as shown in arrow.It’s easy to separate COF on condition that Z-Board Screw is separated. In case Z-Board is assembled,it’s really hard to separate.

Condition in Lock part is pulled

COF Connector

be careful not to tear COF Connector. If COF Connector is torn, replace a new Module Ass’y.

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each Connector separationeach Connector separation

Push LOCK and pull out

PUSH PUSH PUSH

PUSH PUSH PULL

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Controller Board VSC Board ConnectorController Board VSC Board Connector

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Gas injection (sealing up) conditionGas injection (sealing up) condition

Be sealed up after gas injectionBe sealed up after gas injection

Be careful to handle the sealed-up part after gas injection.

If it is broken the gas escapes. So replace a module.

warningwarning

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Power is on and off 2 ~ 3 minutes later ( Protect )Power is on and off 2 ~ 3 minutes later ( Protect )

Power is On and off 2~3 minutes.(Protect)

Power is On and off 2~3 minutes.(Protect)

P301 Connector Open Check.P301 Connector Open Check. X - Board Top Right Change.X - Board Top Right Change.OK

P302 Connector Open CheckP302 Connector Open Check X - Board Top Left Change.X - Board Top Left Change.OK

P303 Connector Open CheckP303 Connector Open Check X - Board Bottom Right Change.X - Board Bottom Right Change.OK

P304 Connector Open CheckP304 Connector Open Check

P102 Connector Open CheckP102 Connector Open Check

X - Board Bottom Left Change.X - Board Bottom Left Change.OK

Z - Board Change.Z - Board Change.OK

P3, P2 Connector Open CheckP3, P2 Connector Open Check OKY - Board Change.Y - Board Change.

P005, P003 Connector Open CheckP005, P003 Connector Open Check

P006 Connector Open CheckP006 Connector Open Check

VSC- Board Change.VSC- Board Change.

VSC - Board Change.Sound Output IC Short Check

VSC - Board Change.Sound Output IC Short Check

Power Board ChangePower Board Change

OK

OKPROTECT operation

when the electrical load voltage is Short.

When each voltage doesn’t work (in general)

PROTECT operation

when the electrical load voltage is Short.

When each voltage doesn’t work (in general)

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As soon as the Power is On, it’s off in 2 ~ 3 minutes. ( Protect )As soon as the Power is On, it’s off in 2 ~ 3 minutes. ( Protect )

L813 dry joint

Inferior phase : as soon as the power, it’s off in 2 -3minutes.

(PROTECT circuitoperation) inferior cause : no VS voltage L813 Coil dry joint.

CheckCheck Open the Connector connecting to each Board to check the power is off.if each Board is same, check the Power Board and voltage.

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ADD BAR inspection and repairADD BAR inspection and repair

HEATRUN : WHITE

Press the ADJ KEY and check the position of add bar by changing WHITE or RED or BLUE or GREEN

Top Right Top Left

Bottom RightBottom Left

PD-40X2 uses 4 board such as left,right, top and bottom.Divide the screen in 5 and once you see ADD BAR check COF CONNECTOR between MODULE and X-BOARD.If there is no defect in COF CONNECTOR replace X-BOARD.But the problem still remains and check the connector between X-BOARD and CONTROL BOARD. And if you can’t find defect, check CONTROL.

PD-40X2

Top

Bottom

PD-60X3 uses 2 X-BOARDs such as top and bottom so when the problems occur in top or bottom, check ADD BAR first and then CONNECTOR, X-BOARD, CONNECTOR and CONTROL BOARD

PD-40X3, PD-60X3

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DND C/S the analysis of inferior goods

1.June 13 inferior receiptPD 40X 2 Filed inferior goodSet No : 912KC 00036 Module No : P239102815-215customer : in kyeongi provincecontents: tape droop management: tape rework

13 inferior receiptPDP 40 NVDN 4 Set No : 104KC 00176 Module No : 503007PRODUCT RECORD : DND sends it to C/S after reworking

POWER B/D .contents : B color Address Open 1line causes : dented COF

: no inferior phase in DND process, assumed that inferior happens during the analysis in DND ,due to Power B/D

COF dented

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inferior receiptPDP 40NVDN 4 Filed Set No : 104KC 00206 Module No : 32184customer : a surgeon in Kyeongi provincecontents : Address R color inferior cause : DATA output inferior by X-L-TOP IC14,16 pin dry joint

( normal curve by tearing off IC Pin)management : X-L-TOP replacement

IC14

Dry joint

Curve inferiornormal curve

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CheckCheck

The blue spreads on the screen (electric discharge inferior) and the power’s off in 2 -3 minutes this phase repeats whenever the power is on.

Inferior phase causes management

Under 14V 15V Line, electric discharge inferior occurs and the power’s offbecause protect circuit is off.

-. The power board SMPS not winded enough has the electric discharge inferior

because of the short of the voltage capacity.

-. X-Board TR Short,over-electrical load

Protect circuit .

The power board PCBreplacement of SMPS

TRANS replacement(B,D Type)

X-Board replacement

Measure SMPS 2차측 15V Line by Digital Multi Meter and check the voltage changes.If it is less than 14V, the screen ins broken with the blue. As soon as the power is ON and it’s offshowing this kind of screen. Remove all connectors and check the board not off.. X-Board inferior and the power board SMPS replacement.

inferior X-Board

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CheckCheck

The whole screen is broken with the blue (electric discharge inferior) whenever the power is on this phase occurs.OSD is normal.

Inferior phase cause management

under 14V 15V Line, electric discharge inferior occurs.

-. The power board SMPS is not winded enough.because the voltage capacity is short ,electric discharge inferior occurs.

The power board PCB replacementor SMPS TRANS replacement( B,D Type)

Measure SMPS 2 15V Line by Digital Multi Meter and check the voltage changes.If it is less than 14V, the screen ins broken with the blue.(electric discharge inferior )

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CheckCheck

The top left part of screen is broken(X-BOARD TOP RIGHT)

Inferior phase causes management

Presume X-BOARD inferior.cause : X-BOARD TOP RIGHT 5V doesn’t turn

X-BOARD TOP RIGHT 5V adoesn’t turn

X-BOARD TOP RIGHT 5V CHECK SMPS ---- X-BOARD TOP RIGHT 5V CHECK

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CheckCheck

The pink in the top left part of the screen.(X-BOARD TOP RIGHT)

Inferior phase causes management

Presume X-BOARD inferior.cause : when X-BOARD TOP RIGHT VA(70V)doesn’t turn, this phase

occurs.

X-BOARD TOP RIGHTVA(70V)doesn’t turn.

VA(70V) LINE OPEN.

X-BOARD TOP RIGHT VA (70V) CHECK SMPS ---- X-BOARD TOP RIGHT VA (70V) CHECK

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CheckCheck

the 3/5 top left in the screen isn’t out(X-BOARD TOP RIGHT)

Inferior phase Causes management

X-BOARD TOP RIGHT 12V doesn’t turnBoard VA(70V) doesn’t turn.

X-BOARD TOP RIGHT12V LINE OPEN

X-Board Top Right VA(70V)Line Open

X-BOARD TOP RIGHT 12V CHECK ( in 0V,this phase.)

X-Board Top Right VA(70V) CHECK. (in 0V this phase)

SMPS --- X-BOARD TOP RIGHT supplied 12V ,VA(70V) CHECK.

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CheckCheck

The 3/5 top right of the screen isn’t out.(X-BOARD TOP LEFT)

Inferior phase causes management

X-BOARD TOP LEFT 12V doesn’t turn.

X-BOARD TOP LEFT VA(70V) doesn’t turn.

X-BOARD TOP LEFT12V LINE OPEN.

X-BOARD TOP LEFTVA(70V) LINE OPEN

X-BOARD TOP LEFT 12V CHECK ( in 0V)

X-BOARD TOP LEFT VA(70V) CHECK(IN 0V)

SMPS --- X-BOARD TOP LEFT , 12V,VA(70V) CHECK.