AOC LE39D3330 Schematic

32″&39″ LCD TV AOC LE32D3330-LE39D3330

Service

31~80 KHz

TABLE OF CONTENTS

Description Page Description Page

Table of Contents.......……....................................…........1

Important Safety Notice.......................................……......2

Revision List…………………………………………………3

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

2. Operating Instructions………………...…….……….......5

2.1 The Use of Remote Control…….…..……….…….......5

2.2 To Use the Menus….....………………….…..…….......6

2.3 How to Connect……..……………….…….……….....13

2.4 Front Panel Control Knobs…….………….……….....15

3. Input/Output Specification…………....................…....17

4. Mechanical Instructions…………………….................19

5. Repair Flow Chart ……………………….…….…….....25

6. PCB Layout ………………..………………....….......32

6.1 Main Board…………..……………...…….…….......32

SAFETY NOTICE

ANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THE CHASSIS

6.2 Power Board……...…………..….…….……….......36

6.3 Key Board……………………………………….......41

6.4 IR Board……………………………………….......41

7. Adjustment..............................................................42

7.1 ADC Adjustment............................................... .....42

7.2 FW Upgrade.………………………………...………43

8. Block Diagram.……........................................ .........4 4

9. Schematic Diagram…..…………....………………...45

9.1 Main Board…………………………………...….......45

9.2 Power Board…………..….….……...………….......62

9.3 Key Board……………………………………….......66

9.4 IR Board……………………………………….......67

10. Exploded View………………………………….…...68

11. BOM List……………….………………….………….72

Horizontal Frequency

AND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICING

ELECTRONIC EQUIPMENT CONTAINING HIGH VOLTAGES.

CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING

Copyright © 2012 by TPV Corporation. All rights reserved. Specifications are subject to change without notice. No part of this publication may be reproduced in any form or means, without the prior written permission of TPV Corporation. Otherwise we will reserve the right to investigate the legal responsibility.

Important Safety Notice

Proper service and repair is important to the safe, reliable operation of all AOC Company Equipment. The servi ce procedures recommended by AOC and described in this service manual are effective methods of performin g service operations. Some of these service operations require the use of tools specially designed for the purpose. Th e special tools should be used when and as recommended.

It is important to note that this manual contains various CAUTIONS and NOTICES which should be carefully read in order to minimize the risk of personal injury to service personnel. The possibility exists that improper service methods may damage the equipment. It is also important to understand that these CAUTIONS and NOTICES ARE NOT EXHAUSTIVE. AOC could not possibly know, evaluate and advise the service trade of all conceivable ways in which service might be done or of the possible hazardous consequences of each way. Consequently, AOC has not undertaken any such broad evaluation. Accordingly, a servicer who uses a service procedure or tool which is not recommended by AOC must first satisfy himself thoroughly that neither his safety nor the safe operation of the equipment will be jeopardized by the service method selected. Hereafter throughout this manual, AOC Company will be referred to as AOC.

WARNING

Use of substitute replacement parts, which do not have the same, specified safety characteristics might create shock, fire, or other hazards.

Under no circumstances should the original design b e modified o r altered without written permission from AOC. AOC assumes no liability, express or implied, arising out of any unauthorized modification of design. Servicer assumes all liability.

FOR PRODUCTS CONTAINING LASER: DANGER-Invisible laser radiations when open AV OID DIRECT EXPOSURE TO BEAM. CAUTION-Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. CAUTION -The use of optical instruments with this product will increase eye hazard.

TO ENSURE THE CONTINUED RELIABILITY OF THIS PRODUCT, USE ONLY ORIGINAL MANUFACTURER'S REPLACEMENT PARTS, WHICH ARE LISTED WITH THEIR PART NUMBERS IN THE PARTS LIST SECTION OF THIS SERVICE MANUAL. Take care during handling the LCD module with backlight unit

-Must mount the module using mounting holes arranged in four corners.

-Do not press on the panel, edge of the frame strongly or electric shock as this will result in damage to the screen.

-Do not scratch or press on the panel with any sharp objects, such as pencil or pen as this may result in damage to the panel.

-Protect the module from the ESD as it may damage the electronic circuit (C-MOS).

-Make certain that treatment person’s body is ground ed through wristband.

-Do not leave the module in high temperature and in areas of high humidity for a long time.

-Avoid contact with water as it may a short circuit within the module.

-If the surface of panel becomes dirty, please wipe it off with a soft material. (Cleaning with a d irty or rough cloth may damage the panel.)

Revision List

Version Release Date Revision Instructions Customer Model TPV Model

LE32D3330 E32C12NSCHB13NX

A00 Nov.13,2012 Initial release

LE39D3330 E39C22NSCHB13NX

1. General Specification

Notas:

• Este modelo está em conformidade com as especificações listadas abaixo.

• O design e as especificações estão sujeitas a alterações sem prévio aviso.

• Este modelo pode não ser compatível com as apresentações e/ou especificações que pod em ser acrescidas no futuro.

2. Operating Instructions

2.1 The Use of Remote Control

2.2 To Use the Menus

7 8 9

10 11 12 13

2.3 How to Connect

2.4 Front Panel Control Knobs

3. Input / Output Specification

3.1 RGB Signal Input

15 - Pin Color Display Signal Cable

Pin No. Description Pin No. Description

1 Red Video 9 No Pin! 2 Green Video 10 Sync Ground 3 Blue Video 11 RXD 4 TXD 12 Serial Data for DDC 5 Ground 13 H-Sync. 6 Red Ground 14 V-Sync. 7 Green Ground 15 Serial Clock for DDC 8 Blue Ground

3.2 HDMI Digital Connector Pin Assignments

Pin No. Description Pin No. Description

1 TMDS Data2+ 2 TMDS Data2 Shield 3 TMDS Data2- 4 TMDS Data1+

5 TMDS Data1 Shield 6 TMDS Data1-

7 TMDS Data0+ 8 TMDS Data0 Shield

9 TMDS Data0- 10 TMDS Clock+ 11 TMDS Clock Shield 12 TMDS Clock13 CEC 14 NC 15 SCL 16 SDA 17 DDC/CEC Ground 18 +5V Power 19 Hot Plug Detect

3.3 Compatible Mode Table

Video / Audio signals

No Mode Resolution H-freq(kHz) V-freq.(Hz) Pixel clock (MHz)

1 IBM VGA 640x480 31.469 59.940 25.175 2 VESA 640x480 37.861 72.809 31.500 3 VESA 640x480 37.500 75.000 31.500 4 IBM VGA 720x400 31.469 70.087 28.322 5 VESA 800x600 35.156 56.250 36.000 6 VESA 800x600 37.879 60.317 40.000 7 VESA 800x600 48.077 72.188 50.000 8 VESA 800x600 46.875 75.000 49.500

9 VESA 1024x768 48.363 60.004 65.000 10 VESA 1024x768 56.476 70.069 75.000 11 VESA 1024x768 60.023 75.029 78.750 12 VESA 1280x768 47.776 59.870 79.500 13 VESA 1360x768 47.712 60.015 85.500 14 VESA 1280x1024 63.981 60.020 108.000 15 VESA 1280x1024 79.98 75.02 135.000

HDMI Video Timing

No Resolution H-freq(kHz) V-freq.(Hz) Pixel clock (MHz)

1 720*480 15.734 60 27 SDTV 480I

2 720*480 31.5 60 27.00/27.03 SDTV 480P

3 720*576 15.625 50 27 SDTV 576I

4 720*576 31.25 50 54 SDTV 576P

5 1280*720 37.5 50 74.25 HDTV 720P

6 1280*720 44.96 / 45 59.94 / 60 74.17/74.25 HDTV 720P

7 1920*1080 33.72 / 33.75 59.94 / 60 74.17/74.25 HDTV 1080I

8 1920*1080 28.125 50 74.25 HDTV 1080I

9 1920*1080 26.97/27 23.97/24 74.17/74.25 HDTV 1080P 10 1920*1080 26.98 25 74.25 HDTV 1080P 11 1920*1080 33.716/33.75 29.976/30.00 74.25 HDTV 1080P

12 1920*1080 56.25 50 148.5 HDTV 1080P 13 1920*1080 67.43/67.5 59.94/60 148.35/148.50 HDTV 1080P

HDMI PC Timing

No Resolution H-freq.(kHz) V-freq. (Hz) Pixel clock (MHz) Mode

1 640x480 31.469 59.940 25.175 VGA 2 640x480 37.861 72.809 31.500 3 640x480 37.500 75.000 31.500 4 720x400 31.469 70.087 28.322 5 800x600 35.156 56.250 36.000 SVGA 6 800x600 37.879 60.317 40.000 7 800x600 48.077 72.188 50.000 8 800x600 46.875 75.000 49.500

9 1024x768 48.363 60.004 65.000 XGA 10 1024x768 56.476 70.069 75.000 11 1024x768 60.023 75.029 78.750 12 1280x768 47.776 59.870 79.500 13 1360x768 47.712 60.015 85.500 14 1280x1024 63.981 60.020 108.000 15 1280x1024 79.98 75.02 135.000 SXGA

Mode

VGA VGA

VGA

SVGA SVGA SVGA

XGA

XGA WXGA WXGA

SXGA

4. Mechanical Instructions

LE32D3330

1. Remove the screws to remove BASE.

2. Remove the screws to remove HINGE.

3. Remove the screws to remove REAR COVER.

4. Remove the screws to remove SPEAKERS, MAIN BOARD and POWER BOARD.

5. Remove the screws to remove KEY BOARD, DECO and BKT.

6. The PANE L.

7. The DECO.

LE39D3330

1. Remove the screws to remove BASE.

2. Remove the screws to remove HINGE.

3. Remove the screws to remove REAR COVER.

4. Remove the screws to remove SPEAKERS, MAIN BOARD and POWER BOARD.

5. Remove the screws to remove KEY BOARD, DECO and BKT.

6. The PANE L.

7. The DECO.

5. Repair Flow Chart

1. No power

No power (LED “Off”)

Check the AC input and the

ower is “ON”?

Yes

Power board output=5V?

Yes

Check the IR board and LED

Replace the IR board

Replace the main board

Power “On”

Replace the power board

2. Can’t start

Can’t start (LED red)

Power board output＝24V?

Yes

Check the power key is under control?

Check the IR receiver is normal?

Replace the power board

Yes

Replace the key board

Yes

Replace the IR board

Replace the main board

Replace the Power board

3. Abnormal display

Abnormal Display

Check the source

Yes

Enter factory mode to do

“EEPROM initial”&“Reset”

Reset the source

Check the main board

Yes

Check the LVDS cable

Yes

Check the panel

Replace the panel

Replace the main board

Replace the LVDS cable

4. No display

No display (No LED)

Check TV is under control and power on/off by remote control and power key?

Yes

Check the LVDS cable

Yes

Check the backlight is

“On”?

Reinsert or replace the LVDS cable

Check the B/L

signal is available?

Yes

Replace the main board

Replace main board

Panel Vcc = 12V?

Yes

Replace the Panel

Replace the main board

Power board output＝24V?

Yes

Replace the Panel

Replace the power board

5. Sound problem

No sound or sound abnormal

Check the audio source connection

and the TV system are correct?

Yes

Check the TV is muted, adjust the

volume or enter the menu to reset?

Reinsert the audio cable or change the TV system

Enter factory mode to do “Reset”

Check the cable between the speakers and main board is OK?

Yes

Check the speaker resistance value is in spec (Remark: The value is marked on the speaker)?

Yes

Replace the cable

Replace the main board

Replace the speaker

6. Remote control malfunction

Remote Control malfunction

Check the remote control battery is not properly placed or no power?

Use the other remote controls

Whether the IR board is

abnormal?

Replace the main board

Yes

Replace the battery

Yes

Replace the remote control

Yes

Replace the IR board

+ 84 hidden pages