AOC M19W531 Schematic

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THESE DOCUMENTS ARE FOR REPAIR SERVICE INFORMATION ONLY. EVERY REASONABLE

EFFORT HAS BEEN MADE TO ENSURE THE ACCURACY OF THIS MANUAL; WE CANNOT

GUARANTEE THE ACCURACY OF THIS INFORMATION AFTER THE DATE OF PUBLICATION AND

DISCLAIMS RELIABILITY FOR CHANGES, ERRORS OR OMISSIONS.

Date：2005/10/19

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CONTENTS

1、SPECIFICATION

1-1 General Specification …................................................….....……........................………....…. 4

1-2 Feature Summary ........................... ...................... .............................……………...………….. 5

1-3 External Interface .......................... ...................... ...............................................................…. 6

1-4 User Interface …......................... ..................................….....……........................………....…. 12

1-5 External Mounting Requirements .......................................................……………...………….. 13

1-6 Environmental Requirements .............................. ...............................................................…. 13

2、Precautions and Notices

2-1 Precaution of assembly 2-2 Precaution of Operation

3、Operation

3-1 Operation of Remote Control Transmitter ...........................................................................… 14

3-2 Front panel controls .....................................................................................................……… 15

3-3 OSD MENU Description ..................................................................................................……. 16

. .......................................................................................................

.......................................................................................................

4、Trouble Shooting Chart

4-1 PANEL Trouble shooting………………….........................................................................…… 20

4-2 Turn PDP on and Check .... .................... .................................................................................. 20

5、White-Balance Adjustment

5-1 Equipments list and prepare………………………………………………………………………… 25 5-2 Preparation and Adjustment process……………………………………………………………… 25

6、DDC program and test

6-1 The list of Instrument ………………………………………………………….. …………………… 27 6-2 Program and test process ……………………………………………...………..………………….. 27

7、Flash Update

7-1 The list of Instrument……………………………...………………………………………………….. 28 7-2 The Operation explaining Flash Update ……………..………...………………………………….. 28

8、Software Platform Reference TV application

8-1 Introduction …………………………………………………………………………………………... 31 8-2 The Phobos Reference TV application …………………………………………………………... 31

9、Block diagram & Explain

9-1 PDP Block diagram and functions…………………………………………….…….. ……………… 33 9-2 Image board block diagram and signal introduce/process……………………………………..… 34

10、Waveform of signal

10-1 Waveform of input signal…………………..….. ………..……. …..…. …. ………………..…… 37

10-2 Signal waveform in the Image board …..….. ………..……. …..…. ……. ………………..…… 40

13 13

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11、Che ck and Measure

11-1 Image board…………………..….. ……….. …. ……………..……... ……………………..…… 43 11-2 SIDE AV board……………….…..…..……..….. ………..…….. …. ……………………..…… 45 11-3 PDC board……………….…..…..……..….. ………..…….. . ……. ……………………..…… 45

12、Mechanical Introduction

12-1 PDP internal view

12-2 Mechanical of cabinet front disassembly 12-3 Disassembly and assembly 12-4 Block Wiring diagram

13、PCB LAYOUT

13-1 Image board PCB LAYOUT.……………………………………………………………………….. 59 13-2 Key board PCB LAYOUT……………………..…..…..….. ………..…….. …. ……………..…… 59 13-3 Side AV board PCB LAYOUT………………..…..…..….. ………..…….. …. ……………..…… 59

13-3 PDC board PCB LAYOUT……………….…..…..….. ………..….. ….….. …. ……………..…… 59

14、Schematic diagram……………………………………………………...........................……………...…

..…..….. ………..………. ……..……….….. …. ……………..……

……. ……..……….….. …. ……………..……

..…..….. ………..……. ……. ……. …. ……………..……

..…..….. ………..……. ……. ……. ………… ……………..……

46 47 48 56

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1、 SPECIFICATION 1-1 General Specification

Item Specification

Screen size 42 inch plasma display panel

Aspect

Display pixels 852 x 480 (WVGA)

Panel

Effective display size 932mm x 532mm

Spec

Number of color 16.7 million colors

Contrast Ratio 10000:1 (in dark room)

Peak brightness 1500 cd/㎡

TV Tuning 1 Tuners, Air:69 channels Cable:135 channels

TV Mode

Sound system M

Color system ATSC / NTSC

16:9

Video Mode

PC Mode

DVI Mode

Power

AV1 ( S_Video/Video)

Video RCA x 1 NTSC

Audio: L/R x 1

S-Video1 x 1 NTSC

AV2 ( S_Video/Video)

Video RCA x 1 NTSC

Audio: L/R x 1

S-Video2 x 1 NTSC

480i

AV3 / AV4

COMPONENT X 2 (YCbCr/YPbPr)

YCbCr/YPbPrx 2

1080i

480P

Audio: L/R x 2

720P

Signal input Analog：D-Sub 15 pin

Plug and play DDC / 2B

Support Frequency FH:31KHz to 80KHz ， FV:50Hz to 85Hz

VESA: 640 x 480

D-Sub Mode

VESA: 800 x 600 VESA: 1024 x 768 VESA: 1280 x 1024

D-Sub Audio Earphone (3.5ø)

Signal input Digital：DVI-D 24 pin

Plug and play DDC / 2B

720P

DVI Mode

1080i

480P

DVI Audio Earphone (3.5ø)

Power input sources AC 100-240V , 50/60Hz

Power consumption ≤350W

Environment

Dimension Net weight

Accessory

Operation Temperature + 0 °C ~ + 40 °C

Storage Temperature - 10 °C ~ + 50 °C

Humidity 10% -- 85%

Width x Height x Thickness 1038 x 726.5 x 240 (mm) With Stand 34Kg

Remote Control Transmitter, Battery X 2, Power Cord, User’s Manual, RCA Cable, D-SUB Cable, DVI Cable.

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1-2 Feature Summary

The following is the specification summary for the display:

z 107 cm (42”) 16:9 Large Screen Flat Panel Plasma Display z Resolutions: WVGA 852 (H) X 480(V) pixels, (1 pixel = 1 R, G, B cells) z 1.095 mm (H) X 1.110mm(V) pixel pitch. z Viewing Angle: 160° Vertically and Horizontally z Internal TV Tuner, Air: 69 channels Cable: 135 channels z Typical Maximum Contrast Ratio: 10000:1 z Typical Maximum Brightness: 1500 cd/m

z ATSC receiver, MPEG-2 decoder z NTSC receiver, Video decoder z Dual Video, Dual S-Video z Dual Y Pb Pr (480i,480p,720p,1080i) HDTV Ready z PC D-SUB 15Pin INPUT z D-SUB analog video with rate 50Hz to 85 Hz vertical refresh rate and 31KHz to

80KHz horizontal frequency

z DVI-D Signal (TMDS) INPUT, Support HDTV, SDTV z Closed Caption / V-chip z Composite, S-Video, and component video receiver z MIPS controller z Auto Scan TV Channels z Field upgradable firmware z Universal Power Supply designed for worldwide application z Operating power consumption less than 350 W z Standby power consumption less than 1 W

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1-3 External interface

Most of these interfaces are located at the back-panel. There’s also a group of connectors located on the side of this device for easier access. The following figures depict these A/V connectors.

Side A/V Connectors

S-Video Video L R Earphone

AV2 Input

Back Panel A/V Connectors

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1-3-1 Video/Audio Inputs

The following sections specify the video/audio inputs for A42W64AT4.

1-3-1-1 TV Antenna Interface

①. TV Antenna Connector

A42W64AT4 shall provide a F-type cable connector with 75 ohms termination on its back panel for reception of radio frequency signals.

②. TV Systems

A42W64AT4 shall be capable of receiving the following broadcasting systems in the North America region.

• Analog terrestrial and cable broadcasting in NTSC system and “M” sound system.

• All 18 formats specified for ATSC digital broadcasting

• Clear QAM digital cable broadcasting

③. TV Channel Coverage

The RF tuner shall be capable of covering 55.25 to 859.25 MHz and tuning to the following channels:

• VHF: channel 2 through 13

• UHF: channel 14 through 69

• Mid band cable: A1 through A8, A through I

• Super band cable: J through W

• Hyper band cable: AA through ZZ, AAA, BBB

• Ultra band cable: channel 65 through 94, 100 through 125

④. Closed Caption

A42W64AT4 shall support closed caption and text mode for both video and TV system. These supports shall include channel ½ and field ½ selectable features.

⑤. V-Chip

A42W64AT4 shall support MPAA grade for movie and TV Parental Guideline for TV. This support shall include changeable password.

1-3-1-2 AV1

A standard definition (SD) analog video/audio source designated as AV1 shall be located on its back panel. It comprises the following electrical connections. Only one of the two video inputs shall be connected.

①. S-Video Input

A42W64AT4 shall provide a 4-pin mini-DIN connector for connection to an external S-Video source.

②. CVBS Video Input

A42W64AT4 shall provide a RCA type receptacle for connection to an external CVBS source.

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③. Audio Inputs

A42W64AT4 shall provide two RCA type receptacles for the stereo audio signal associated with AV1 input.

1-3-1-3 AV2

A standard definition analog video/audio source designated as AV2 shall be located at the side of A42W64AT4. It comprises the following electrical connections. Only one of the two video inputs shall be connected.

①. S-Video Input

A42W64AT4 shall provide a 4-pin mini-DIN connector for connection to an external S-Video source.

②. CVBS Video Input

A42W64AT4 shall provide a RCA type receptacle for connection to an external CVBS source.

③. Audio Inputs

A42W64AT4 shall provide two RCA type receptacles for the stereo audio signal associated with AV2 input.

1-3-1-4 AV3

A YPbPr/YcbCr type component video interface designated as AV3 shall be located on its back panel. It comprises the following electrical connections.

①. Video Inputs

A42W64AT4 shall provide three RCA type receptacles for connection to an external component video source.

②. Audio Inputs

A42W64AT4 shall provide two RCA type receptacles for the stereo audio signal associated with Component1 input.

1-3-1-5 AV4

A YPbPr/YcbCr type component video interface designated as AV4 shall be located on its back panel. It comprises the following electrical connections.

①. Video Inputs

A42W64AT4 shall provide three RCA type receptacles for connection to an external component video source.

②. Audio Inputs

A42W64AT4 shall provide two RCA type receptacles for the stereo audio signal associated with Component2 input.

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1-3-1-6 PC Input

A42W64AT4 accommodates a VGA type computer connection as specified below.

①. Video Input connector

A42W64AT4 shall provide a 15-pin D-Sub connector on its back panel for connection to a VGA type video source. The VGA signal input on the display shall be capable of receiving RGB analog video, H and V syncs, and DDC. The table below specifies pin-outs of this connector.

Analog Connector Pin-outs

1 RV Red Video

2 GV Green Video

3 BV Blue Video

4 NC None

5 GND Ground (DDC Return)

6 RG Red GND

7 GG Green GND

8 BG Blue GND

9 +5 V +5 V (from the PC)

10 SG Sync Ground

11 NC None

12 SDA DDC Data

13 HS Horizontal Sync

14 VS Vertical Sync

15 SCL DDC Clock

②. Audio Inputs

A42W64AT4 shall provide a 3.5 mm jack for the stereo audio signal associated with VGA input.

③. Input Formats

A42W64AT4 shall support the following input format on its VGA input.

Mode Resolution Total

MNEMONIC

SIGNAL

11 15

Horizontal Vertical

Nominal

Frequency

(KHz)

Sync

Pola-rity

Nominal

Freq.

(Hz)

Sync

Pola-rity

Nominal

Pixel

Clock

(MHz)

VGA 640x480@60Hz 800 x 525 31.469 N 59.940 N 25.175

SVGA 800x600@60Hz 1056 x 628 37.879 P 60.317 P 40.000

XGA 1024x768@60Hz 1344x806 48.363 N 60.004 N 65.000

WXGA 1280x1028@60Hz 1688x1066 64 N 60 P 108

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1-3-1-7 DVI

A42W64AT4 shall accommodate a DVI type digital video source as specified in this section.

①. Video Inputs

A42W64AT4 shall provide a 24 contact DVI-D receptacle on its back panel for receiving TMDS digital video. The table below specifies pin assignments for the DVI-D connector.

DVI-D Digital connector pin assignments

PIN MNEMONIC SIGNAL

1 TX 2 - TMDS Data 2 -

2 TX 2 + TMDS Data 2 +

3 SHLD 2 / 4 TMDS Data 2 / 4 Shield

4 TX 4 - TMDS Data 4 -

5 TX 4 + TMDS Data 4 +

6 DDC Clk DDC Clock

7 DDC Data DDC Data

8 N/C No Connect

9 TX 1 - TMDS Data 1 -

10 TX 1 + TMDS Data 1 +

11 SHLD 1 / 3 TMDS Data 1 / 3 Shield

12 TX 3 - TMDS Data 3 -

13 TX 3 + TMDS Data 3 +

14 +5V +5V Power (from the PC)

15 GND Ground (Return for +5V)

16 HPD Hot Plug Detect

17 TX 0 - TMDS Data 0 -

18 TX 0 + TMDS Data 0 +

19 SHLD 0 / 5 TMDS Data 0 / 5 Shield

20 TX 5 - TMDS Data 5 -

21 TX 5 + TMDS Data 5 +

22 TX CLK SHLD TMDS Clock Shield

23 TX CLK + TMDS Clock +

24 TX CLK - TMDS Clock -

②. Audio Inputs

A42W64AT4 shall provide a 3.5 mm jack for the stereo audio signal associated with DVI input.

③. HDCP support

HDCP must be supported on the DVI input. Refer to the High-bandwidth Digital Content Protection System specification version 1.1 for details.

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④. Input Formats

A42W64AT4 shall support the following input format on its DVI input.

Nominal

Mode Resolution Total

VGA 640x480@60Hz 800 x 525 31.469 59.940 25.175

SVGA 800x600@60Hz 1056 x 628 37.879 60.317 40.000

XGA 1024x768@60Hz 1344x806 48.363 60.004 65.000

720P 1280×720P 45.00 60 74.25

1080i 1920×1080i 33.75 60 74.25

480p 720×480p 31.54 60 27.00

HFrequency

(KHz)

Nominal

Vertical

Frequency

(KHz)

Nominal Pixel

Clock Frequency

(MHz)

1-3-2 Power Interface 1-3-2-1 Power Connector

A42W64AT4 shall support an IEC C-13/C-14 (Standard) type male power receptacle for connection to AC power source.

1-3-2-2 Power Input Range

The operating range shall be from 100 to 240 VAC sinusoidal. Input power frequency range shall be from 50 to 60 Hz over the specified input voltage range.

1-3-2-3 Power Consumption

①. Operating Power

Power consumption for the display over the specified voltage and frequency ranges shall be less than 350 W for the assemblies with speakers.

②. Standby Power

A42W64AT4 power also below than one watt in the standby mode.

1-3-3 Service Interface

A42W64AT4 shall provide a 9-pin D-sub connector on its back panel for firmware upgrading purpose. This interface shall conform to RS-232 standard with the following pin-outs.

Pin Function

1 NC 2 TXD transmitted data 3 RXD received data 4 Shorted with pin 6 5 FG frame ground 6 Shorted with pin 4 7 Shorted with pin 8 8 Shorted with pin 7 9 NC

The method of firmware upgrading please see “Flash update process” chapter.

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1-4 User interface

1-4-1 Power Indicator

A42W64AT4 shall make use of an LED type indicator located on the front of the display. The LED color shall indicate the power states as given in the following table.

LED colors

Mode H-Sync V-Sync Video Pw-cons. Indicator

Power-On On On Active ＜350W Blue LED

Standby Off Off Off ＜1W Red LED

1-4-2 Remote Control Receiver

A42W64AT4 shall provide an infra-red (IR) optical detector on its front panel for use as the receiver for remote controller signal. The IR communication protocol shall conform to RC-5 standard. The minimum IR reception angles shall be +/- 30 degrees horizontally and vertically. The required operating distance of the remote control shall be 7 m.

1-4-3 On-Screen Display

A42W64AT4 shall provide an On Screen Display (OSD) system for customer setup. The following table gives the structure of the OSD menus.

Main menu Sub menu Function Default Reset

SETUP

Tuning Band To select between Air and Cable System Air —

DTV Signal

To display the signal strength in order to aid the antenna adjustment

— —

Auto Ch Search To automatic scan and store all TV channels — — Manual Ch Set To enable or disable channels — — Channel Label To rename a channel — —

VIDEO

Manu

Language CONTRAST To adjust the contrast value between 0~100 50 Yes BRIGHTNESS To adjust the brightness value between 0~100 50 Yes SHARPNESS To adjust the sharpness value between 0~100 50 Yes COLOR To adjust the color value between 0~100 50 Yes TINT To adjust the tint value between 0~100 50 Yes

Aspect Ratio

To select the language for OSD among English, Spanish, French, and Portuguese

To select aspect ratio among Normal, Zoom, Wide, and Cinema

English —

Normal Yes

Settings To restore all video settings to factory default — —

AUDIO

Audio Language BASS Sets the bass value between 0~100 31 Yes TREBLE Sets the treble value between 0~100 31 Yes

To select audio language among English, Spanish, French, and Portuguese

English Yes

BALANCE Sets the left/right balance value between 0~100 31 Yes

Restore Default To restore all audio settings to factory default — —

FEATURE

Time Set To set current time — —

Sleep Timer

To set the timer period to turn off the TV. Selectable values are OFF,30,60 and 90 minutes

OFF —

Password Set To set or change Parental Control password TBD —

Parental

Control

To select V CHIP settings

Un-lock

White Screen To make a White screen by TV ifself. — —

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—

1-5 External Mounting Requirements

A42W64AT4 shall be designed so that the display enclosure can be easily removed from the base for external mounting applications. When the base is removed, there shall be no additional non-removable parts that are visible from the front of the display

1-6 Environmental Requirements 1-6-1 Temperature Ranges

Operating Temperature (Independent of altitude) Non-Operating Temperature (Independent of altitude)

.................................................. 0°C to 40°C

................. ..................... -10°C to 70°C

1-6-2 Humidity

Operating (non-condensing) Non-Operating (38.7°C maximum wet bulb temperature

.................... ...............................................................20% to 85%

........ ........... ....................5% to 85%

1-6-3 Altitude

Operating Non-Operating

............................................................... ...................... ...................... (0 to 2,000 m)

............................... .................................... ........ . ...................... (0 to 3,000 m)

1-6-4 Vibration and Shock

All testing shall be done in each of three mutually perpendicular axes, referenced to the position of the system as it is in front of the user (i.e., front-to-back, side-to-side, and top-to-bottom).

2、Precautions and Notices：

2-1 Precaution of assembly

（1）Please do not press or scratch PDP panel surface with anything hard. （2）Please wipe out PDP panel surface with absorbent cotton or soft cloth in case of it being soiled （3）Please wipe out drops of adhesive like saliva and water in PDP panel surface immediately. They might

damage to cause panel surface variation and color change

（4）Do not apply any strong mechanical shock to the PDP panel

2-2 Precaution of Operation：

（1）Please be sure to unplug the power cord before remove the back-cover. (make sure the power is turn-off) （2）Please do not change variable resistance settings in PDP MODULE; They are adjusted to the most

suitable value. If they are changed, it might happen LUMINANCE does not satisfy.

（3）Please consider that PDP MODULE takes longer time to become stable of radiation characteristic in

low temperature than in room temperature.

（4）Please pay attention to displaying the same pattern for very long-time. Image might stick on PDP.

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3、Operation

3-1 Operation of Remote Control Transmitter

A42W64AT4 shall provide an IR remote controller as accessory.

Normal, Zoom ,Wide, Cinema

Display the state, source

TV source select, into TV state

Select timer into power down state.

off→30→60→90→off

options(CC1,CC2……)

To select close caption

To enter sub Menu or sub item .

To enter Menu mode .

Press Vol up/ Vol down

key to adjust volume .

To enter TV channel number

To enter sub channel number

for digital channels .

“Wide Mode”

display select

“EPG”

“TV”

“SLEEP”

“CC”

“ENTER”

“MENU”

“MUTE”

Mute the sound

“Vol up / Vol down”

“0~9 number”

“ z ”

Wide Mode

left

Vol up

Vol down

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EPG

Video

SLEEP

Enter

Down

Mute

POWER

Digital

right

CH up

CH down

Pre-CH

“POWER”

The TV Set turn on /turn off ke

“Video”

AV1 CVBS Rear /AV1 S-Video

Rear/ AV2 CVBS Side/ AV2

S-Video Side / AV3 component 1/

AV4 component 2

“Digital”

VGA/DVI source input

“MTS ”

To select audio program

options

“Up▲/Down▼”

Move the cursor up and down on

the Menu

“left ◄ / right ►”

Use left ◄/ right ► to select or

adjust an item.

“EXIT”

To exit Menu or other OSD .

“CH up / CH down”

Press to select the next lower or

higher Program number.

“Pre-CH”

TV channel return, see last TV

channel .

3-2 Front panel controls

① ② ③

④ ⑤ ⑥ ⑦

①

② ● LED: Power Indicator. ③

IR: Remote Control Sensor.

Power switch: Press to power on or power off the TV set..

- CH + - VOL +

MENU MODE

Down: Press to select the next lower Programme number or move Down in

④ -CH+

Menu operation. Up: Press to select the next higher Programme number or move up in Menu operation.

⑤ -VOL+

Left: Press to decrease the sound volume level or move Left in Menu operation. Right: Press to increase the sound volume level or move Right in Menu operation.

⑥ MENU Menu: Press to enter Menu or exit Menu. ⑦ MODE Mode: Press to select input signal modes or use as Enter in Menu operation.

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3-3 OSD MENU Description 3-3-1 Main MENU

1. Press “MENU” key on remote control or

front panel controls to bring up Main Menu.

2. Press “

and down the sub menu list.

3. Press “

4. Press "Enter" to enter sub-item then use

” or “” to adjust.

“

” or “” to move the cursor up

” or “” to select sub menu item.

3-3-2 SETUP MENU

1. Tuning Band: Select TV signal source between Air and Cable. Select Cable if you are connecting to a cable box and select Air if you are directly connecting to the antenna.

2. DTV Signal: Display signal strength to aid antenna adjustment.

3. Auto Ch Search: Automatically scan and store all TV channels.

4. Manual Ch Set: Enter channel setup table.

5. Channel Labels: Display and edit channel names.

6. Menu Language: Select language for menu

(EnglishEspañolFançaisPortuguese).

y DTV signal menu indicates signal strength

in real-time.

y Auto channel scan menu displays channel

number being scanned.

y Manual Channel Set Menu

Displays all the channel numbers that are found. Tune either to ATSC or NTSC channels. Add or delete Channel number.

y Channel Labels Menu allows user labeling.

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3-3-3 Video MENU

1. Press “” or “” to move the cursor up

or down the sub-item list.

2. Press "Enter" to enter the highlighted sub-item menu.

3. Press “

the sub-item.

” or “ ” to adjust the value of

4. Press "Enter" again to exit the sub-item.

Contrast: Contrast adjustment, 0~100.

Brightness: Brightness adjustment, 0~100.

Color: Color chroma adjustment, 0~100.

Tint: Tint adjustment, 0~100.

Aspect Ratio: Aspect Ratio selection.

Normal

ZoomWide Cinema.

Settings: Restore default setting.

3-3-4 Audio MENU

1. Press “

2. Press "Enter" to enter the highlighted

3. Press “

4. Press "Enter" again to exit the sub-item.

Audio Language:

EnglishEspañolFrançaisPortuguese.

Bass: Bass adjustment, 0 ~ 100.

Trebl e: Treble adjustment, 0 ~ 100.

Balance: Balance adjustment, 0 ~ 100.

Restore Default: Restore Audio Language,

Treble, Base, and Balance setting to default.

” or “” to move the cursor up

or down the sub-item list.

sub-item menu.

” or “” to adjust the value of

the sub-item.

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3-3-5 Feature MENU

1. Press “

2. Press "Enter" to enter the highlighted

3. Press “

4. Press "Enter" again to exit the sub-item.

Time Set: Select minutes into standby

Password Set: Enter and change Parental

Parental Control: Setup TV and Movie

White Screen: Select White Screen, and

press MODE front panel button (Enter on the Remote control).The TV immediately displays the white screen.

Parental Control Menu: Controls viewing of rated TV and Movie programs.

Default password is: 0000.

Important : If you have forgotten your

Password. Use the code [0711] to enter into the Password Set menu item to change your password. You can also use the code [0711] to change your Parental Controls settings.

” or “” to move the cursor up

or down the sub-item list.

sub-item menu.

” or “” to adjust the value of

the sub-item.

Off

 30  60  90

Control Password.

rating controls.

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ATSC TV

3-3-6 Closed Captions

1. Press “CC” key on remote control to select closed captions mode. NTSC TV: Off CC1 CC2 …　　　

ATSC TV: Off CS1 CS2 …　　　

2. Select desired closed caption mode.

3.Closed captioning for analog NTSC channels is transmitted as CC1/CC2/CC3/ CC4. Closed captioning for digital channels is transmitted as CS1/CS2/CS3/CS4/ CS5/CS6 or occasionally CC1/CC2/CC3/CC4. You need to select the option you want for analog channels and digital channels separately.

3-3-7 EPG

Press the “EPG” key on the remote control to display the Electronic Program Guide (EPG). A message window will be displayed on screen.

3-3-8 TV channel arrangement

Each digital channel may comprise of several sub-channels. To select a digital channel using the remote control:

1. Enter main channel number.

2. Press the “•” key.

3. Enter the sub-channel number.

 EPG Message Window

Ch 5.4

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4、Trouble shooting chart

If replace “IMAGE BOARD”, Please re-do “DDC writing” program & “WHITE-BALANCE” & Flash Update.

If replace PANEL module, Please re-do “white-balance adjust”

4-1 PANEL Trouble shooting

Please reference the “PANEL Service Manual”.

4-2 Turn PDP on and Check:

Plug power cord into pdp set, and the color of LED is red;

If PDP under the normal working, display of LED is blue. Then, the screen show is nor dark. If the color of LED is red under standby state, you should press the “power” bottom of remote control or you should press the front standby key. Then, turn PDP TV on.

If it is nothing about OSD or display on screen, service PDP. The procedure and maintain the step meet as follows:

LED Light

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Power Cable

4-2-2 Solution process of whole PDP:

Screen is nothing under power on

Check the REL-SW state of power IO

interface， High Voltage：Turn on Low Voltage：Standby Test Point： C pole of Q5 High Voltage：5V（4.2---5.3V） Low Voltage：0V

Check device circuit and logic circuit, Vs, Vset, Vsc, Ve etc. Arrow shows test point.

Check AC input of PDC

Check PowerSTB5V（U516 3PIN）

Voltage: 5V

If REL-SW is ok，check other

power.

If there was anything unmoral, test voltage and

air it.

Process of repair as follow

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U516

Image board

CN703

CN704

R128

Check the voltage of CN703：

PIN5 --Æ 12 V PIN8 --Æ 3.3 V PIN9 --Æ 3.3 V PIN11 --Æ 6 V (Samsung PANEL)

Fig1: Voltage sheet

Name Voltage Reference

VS 209V Voltage for driving sustain

VA 70V Voltage for driving address

VE 82V Voltage for driving X-bias

VSET 198V Voltage for driving reset

Vscan -198V Voltage for driving scan

Vg 15V Voltage for driving FET

D3V3 3.5V Voltage for driving logic

4-2-3 STB POWER Solution process

No input of +5VSB,or output is unmoral

Test point：CN903 PIN2 Voltage：5V（4.9－5.1）

Test AC Input of CN901 ok

or not?

Voltage：AC 100 V ~ 120 V

/200 V ~ 240 V

Test voltage of C905

is DC300V or not？

Check IC901 and D901

ok or not？

+5VSB OK

Note：Must distinguish connect Grand point of Power primary and secondary level.

POWER un-moral

Check FUSE F901,

BD901ok or not？

Do these process under the state is +5VSB

Page 22 of 83

No input of AC Power

out, or output is unmoral

Test point：CN902

Voltage: AC INPUT±1V

PS－ON ok or not？ Test point：CN903 PIN4 Voltage：DC5V（High）

Vccp ok？

Test pads of C909

Voltage：DC13V－25V

Q901, Q902, Q903, Q904, M902 ok or not？

AC POWER-OUT OK

Check circuit of

IMAGE BOARD,

and check PS-ON

OK or not?

4-2-4 Solution processes for DC Power

Check the junction that CN703 to

CN704 or CN701 to CN702 ok

or not?

Test input voltage:

L701 --Æ 12 V

L703 --Æ 6 V

L721 --Æ 3.3 V (Samsung PANEL)

Test voltage as follow：

L705--Æ8V

L706--Æ5V

L704--Æ5V

L718--Æ2.5V

L719--Æ1.2V

4-2-5 Solution processes for SCALER

Check power supply , input

and output signal of U1

（ZR391055） and U2 （DS90C2501）ok or not?.

Check input and output signal of

U8，and TX0-/TX0+ signal etc. ok

or not?

Page 23 of 83

Is there any short or

cold solder?

Is there any short or

cold solder?

Replace U8

4-2-6 Solution processes VIDEO

No display under Video, S-video,

YCbCr and YPbPr mode

Check the state of power

switch ,and DC power.

1.Test input signal of U14

under VIDEO and

S-VIDEO mode

2. Test input signal of U1

at C18/C19/C20 under

YCbCr mode

Check U1

Check circuit of U6

(PW1231) ok or not?

Check circuit of U20

（SCALAR）and LVDS

Page 24 of 83

Is there any short or disconnection,

and signal is wrong.

（The signal of standard color bar

will be ver

Is there any short or disconnection, CLK

and SYNC signal to U1circuit?

Is there any short or disconnection, CLK

and SYNC signal to U6 circuit?

clea

）

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