AOC LE30A3330-61 Schematic

29″LCD TV AOC LE30A3330/61

Service

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……..……………….…….……….....17

2.4 Front Panel Control Knobs…….………….……….....19

3. Input/ Output Specification………....................…....20

4. Mechanical Instructions…………………….................22

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

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

SAFETY NOTICE

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

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

6.2 Power Board……...…………..….…….……….......35

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

6.4 IR Board…...…………………………………….......38

7. Adjustment..............................................................39

8. Block Diagram…..…………....………………...40

9. Schematic Diagram…..…………....………………...42

9.1 Main Board…………..….….……...………….......42

9.2 Power Board…………..….….……...………….......50

9.3 Key Board……………….……….…………….........52

9.4 IR Board…...…………….……….…………….........53

10. Exploded View………………………………….…...54

11. BOM List……………….……………….………….56

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 service

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, specified safety characteristics might create

shock, 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 grounded 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 Customer Model TPV Model

A00 Jan.31.2013 Initial release LE30A3330/61 E29C2KNCCXA1NNX

1. General Specification

Notes:

• Designs and specifications are subject to change without notice.

• This model may not be compatible with features and/or specifications that may be added in the future.

2. Operating Instructions

2.1 The Use of Remote Control

2.2 To Use the Menus

Picture Setting

Note: Certain screen setups may be unavailable or have different options in accordance with the input sources.

Picture Setting(For PC source only)

Note:

• If the PC is connected to the TV and no signal has been input from the PC for more than 30 seconds,the TV enters the standby mode automatically.

Audio Setup

Features Setup

Channel Setup

Note: This setting is only available in TV mode.

Note: Make sure you have connected RF signal cable before performing channel search.

Manual search description

1. Select Channel Search menu.

2. Select Manual Search and press OK key or ► arrow key to get Manual search sub-menu

3. Select a manual tuning parameter by using arrow.

Computer Setup

This setup function is available in computer mode.

Note: If the PC is connected to the TV and no signal has been input from the PC for more than 30 seconds,the TV enters the standby mode automatically.

USB Media Center

TV USB port can be used to view JPEG photos, play mp3 music and Video files, and read text present in USB devices. Entering to USB Media:

Press the Or Press the Source key and ▲/▼ keys on remote and select USB source to get USB Media menu as shown above

Select the Media type (Photo/ Music/ Video/ Text) to be viewed and press OK key to enter into USB Media and When USB drive is detected by the TV, USB drive is displayed as a folder on the screen as shown below. If more then one USB is pluged to the TV two folders will be displayed. Select the required drive and press OK key to view subfolder or files in the USB drive.

Notes:

• If USB storage device is plug-in to TV USB port, Media menu will pop up on TV screen irrespective of Input Source .

• Files of selected Media type can only be viewed through USB. Media type can be any one amoung Photo / Music / Video / Text.

Direct USB key on remote to get USB Media menu as shown above

Viewing Photos

1. Thumbnail of the available images will be displayed on the screen. If no images are displayed then select the folder containing the Photos .

2. To select a particular image and to display it in fullscreen press key and press OK key. Slide show starts automatically when image is viewed in full screen.

3. Press slideshow

key to play/pause slideshow. Press to view previous or next image. Press key to stop

USB menu settings for Photo Slide show

Press OK key to get following Menu setup shown above.

1. [Transition Effect] : Select the slide transition as None, Top To Bottom, Bottom To Top, Left To Right, Right To Left, Random.

2. [Rotate] : Rotate the select photo by 90° clock wise direction.

3. [Play Time] : Select the duration of time a photo is to be displayed.

4. [Information] : Display the information of the file.

Playing Music files

1. Thumbnail of the available music files will be displayed on the screen. If no files are displayed then select the folder containing the music files.

2. To play particular music file select the required file and press OK key.

3. Press Music play.

USB menu settings for Music play

Press OK key to get following Menu setup shown above.

1. [Repeat] : Select the repeat mode as None, Single,All,Random.

2. [EQ] : Select sound mode like Personal,Standard,Speech,Music.

3. [Background Music] : Select it to on to turn off dispaly and to get only sound from TV

4. [Information] : Display the information of the file.

Playing Video files

1. Thumbnail of the available video files will be displayed on the screen. If no files are displayed then select the folder containing the video files.

2. To play particular video file select the required file and press OK key.

key to play/pause music. Press to play previous or next track. Press key to stop

3. Press key

video play.

to play/pause video. Press to play previous or next video. Press key to stop

USB menu settings for Video play

Press OK key to get following Menu setup shown above.

1. [Repeat] : Select the repeat mode as None, Single,All,Random.

2. [Information] : Display the information of the file.

3. [Subtitle]:Select the subtitle mode of the video.

4. [Video Track]:Select the track mode of the video.

Reading Text files

1. Thumbnail of the available text files will be displayed on the screen. If no files are displayed then select the folder containing the text files.

2. To read particular text file select the required file and press OK key.

3. Press ◄/►/▲/▼ keys to browse the text. Press MENU key to stop text read.

USB menu settings for text read

Press OK key to get following Menu setup shown above.

1.[Play/Pause]:Display/Pause text read.

2.[Background Color]:Select the text background color .

3.[Font Color]:Select the text font color.

4.[Page Turn]:Select the text page turn.

5.[Font Size] : Select the text font size.

Formats supported to multimedia mode: Photo, Music, and Video.

Remarks:

1. USB interface of digital multimedia player is not all-purpose. So when some USB devices could not be recognized,

the problem is usually not the performance failure but due to device driver.

2. Because USB devices and memory capability are different, the time needs for multimedia player to read

information are also different. So the information reading speed of the player temporarily getting slow are not the performance failure.

3. The voltage supplied to USB interface is 5V, and the most electrical current is 500mA. When some interface

criteria of USB devices are different from standard USB protocol, digital multimedia player may be unable to recognize USB devices correctly, which is normal status.

4. USB could be used as an interface to update software.

5. If some files source could not play because of the parameter decoding-limitation, the problem is not performance

failure.

6. The system only applies to memory medium with FAT32 and NTFS format.

7. The system can not support dynamic Gif format.

2.3 How to Connect

You can enjoy standard-definition and high-definition digital programming (if available in your area), along with standard-definition analog programming. It is strongly recommended that you connect the antenna/cable input using a 75-ohm coaxial cable to receive optimum picture quality. A 300- ohm twin lead cable can be easily affected by radio frequency interference, resulting in signal degradation.

Cable or VHF/UHF(or VHF only)

High Definition Interface

You can enjoy high-definition programming by subscribing to a high-definition cable service or a high-definition satellite service. For the best possible picture, make sure you connect this equipment to your TV via the HDMI or component video (with audio) input on the back of your TV.

HDMI Connection

If the equipment has a DVI jack and not an HDMI jack, connect the DVI jack to the HDMI IN (with DVI-to-HDMI cable or adapter) jack and connect the audio jack to the PC AUDIO IN jacks.

Component Signal Connection

Composite Signal Connection

Video Out Signal Connection

PC Connection

Use the TV as a monitor for your PC shown below with the HD15 to HD15 connection. This TV can also be connected to a PC with DVI or HDMI output.

• Connect the PC IN jack to the PC using the HD15- HD15 cable with ferrite core (analog RGB) and audio cable.

• If the PC is connected to the TV and no signal has been input from the PC for more than 30 seconds, the TV enters

the standby mode automatically.

Connecting USB drive Connecting Earphone

2.4 Front Panel Control Knobs

3. Input / Output Specification

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

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 Clock-

13 CEC 14 Reserved(N.C. on device)

15 SCL 16 SDA

17 DDC/CEC Ground 18 +5V Power

19 Hot Plug Detect

Compatible Mode Table

RGB Input Signal Timing

Item

1 2 3 4 5

Resolution

720x400 640x480

800x600

1024x768 1360x768

Horizontal Vertical

Nominal

Freq. (KHz)

31.5 N 70 P 28

31.5 N 60 N 25.2

37.9 P 60 P 40.0

48.4 N 60 N 65.0

47.7 P 60 p 85.8

Sync

Polarity

Nominal

Freq.(Hz)

Sync

Polarity

Nominal Pixel

Clock (MHz)

HDMI INPUT SIGNAL TIMING PC Timing

Item

1 2 3 4

Video Timing

No Mode Resolution V. Freq. (Hz) H. Freq. (KHz)

1 480i 720(1440)x480 60 35 27 4:3/16:9 2 480P 640x480 60 31.5 25 4:3 3 480p 720x480 60 31.5 27 4:3/16:9 4 576i 720(1440)x576 50 15.6 27 4:3/16:9 5 576p 720x576 50 31.3 27 4:3/16:9 6 720p 1280x720 60 45 74.2 16:9 7 720p 1280x720 50 37.5 74.3 16:9 8 1080i 1920x1080 50 28.1 74.3 16:9

9 1080i 1920x1080 60 67.4 148.4 16:9 10 1080p 1920x1080 60 67.5 148.5 16:9 11 1080p 1920x1080 50 56.3 148.5 16:9

Resolution

640x480 800x600

1024x768 1360x768

Horizontal Vertical

Nominal

Freq. (KHz)

31.5 N 60 N 25.2

37.9 P 60. P 40.0

48.4 N 60 N 65.0

47.7 P 60 p 85.8

Sync

Polarity

Nominal

Freq.(Hz)

Sync

Polarity

Pixel clock

Nominal Pixel

Clock (MHz)

Screen Mode

(MHz)

4. Mechanical Instructions

1. Remove the screws to remove BASE.

2. Remove the screws to remove REAR COVER.

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