AOC LC32K0D3D, LC32KOD3D, LC42K0D3D, LC42KOD3D Schematic

32_42″LCD TV AOC LC32_42K0D3D

Service

LLCC3322KK00DD33DD LLCC4422KK00DD33DD

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………………...…….……….......6

2.1 The Use of Remote Control…….…..……….…….......6

2.2 To Use the Menu….....…………………….……….......7

2.3 How to Connect……..……………….…….……….....11

2.4 Front Panel Control Knobs…….………….……….....18

3. Input/Output Specification…………....................…....19

4. Mechanical Instructions…………………….................21

5. Repair Flow Chart ……………………….…….…….....26

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

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

SAFETY NOTICE

ANY PERSON ATTEMPTING TO SERVI CE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THE CHASSIS

6.2 Power Board……..……………….…….……….......34

6.3 Key Board………………………..……..……….......38

6.4 IR Board………………………….……..……….......39

7. Adjustment……..………………………….................40

8. Block Diagram.……........................................ .........42

9. Schematic Diagram…..…………....………………...43

9.1 Main Board…………………………………...….......43

9.2 Power Board…..………….….……...………….......56

9.3Key Board……………….……….…………….........58

9.4 IR Board……...………….……….…………….........59

10. Exploded View………………………………….…...60

11. BOM List……………….………………….………….62

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

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 performing service operations. Some of these service operations require the use of tools specially designed for the purpose. The 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, specifie d safet y chara cte rist ics mig ht cr e ate sho c k, fire, or other hazards.

Under no circumstances should the original design be modified or 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 AVOID 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 dirty or rough cloth may

damage the panel.)

Revision List

Version Release Date Revision Instructions TPV Model

A00 Apr.31,2010 Initial Release E32AA2NBW3G1NS

A00 Apr.31,2010 Initial Release E42AG2NBW3G1NS

1. General Specification

2. Operating Instructions

2.1 The Use of Remote Control

2.2 To Use the Menus

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 Reserved (N.C. on Device) 15 SCL 16 SDA 17 DDC/CEC Ground 18 +5V Power 19 Hot Plug Detect