AOC LE32A1710 Schematic

31.5″ LCD TV AOC LE32A1710

Service

31~48 KHz

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……..……………….…….……….....18

2.4 Front Panel Control Knobs…….………….……….....20

3. Input/Output Specification…………....................…....21

4. Mechanical Instructions…………………….................23

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

6. PCB Layout ………………..…………………....….......33

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

TABLE OF CONTENTS

6.1 Main Board…………..……………...…….…….......33

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…..…………....………………...41

9.1 Main Board…………………………………...….......41

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

9.3 Key Board……………….……….…………….........55

9.4 IR Board……...………….……….…………….........56

10. Exploded View………………………………….…...57

11. BOM List……………….………………….………….59

SAFETY NOTICE

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

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 TPV Model

A00 Jan.5,2011 Initial release E32B8KNCASA1NNX

1. General Specification

Model LE32A1710

Panel size

Resolution

TV System

Speaker

Antenna impedance

Input Voltage

Power consumption

Standby power consumption

Video/Audio Terminals

Video/Audio Input

Rear Component : Y: 1V(p-p), 75 ohm, including sync.

Component Input

AUDIO: 500mv (rms) HDMI INPUT: Rear HDMI x 1

HDMI Terminals

E-EDID compliant

VGA Terminals

Size (W × H × D) (with base and stand) (mm) Size (W × H × D) (without base and stand) (mm)

Weight

Wall mount size

Wall-Mount accessory

Operating conditions

Storage conditions

Temperature Humidity Altitude

Note:

• 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.

800mm diagonal (31.5” viewable)

1366 x 768

PAL D/K, B/G, I NTSC M

7W x 2

75Ω

100-240V AC, 50/60Hz

80W

<1W

Rear AV in x 1 , Side Video out x 1 VIDEO: 1 V(p-p), 75 ohm, negative sync.

AUDIO: 500mv (rms)

Pr/Cr: ±0.35V(p-p), 75 ohm Pb/Cb: ±0.35V(p-p), 75 ohm

HDCP compliant

VGA INPUT: Rear VGA (D-SUB 15 Pin) Input x 1 E-EDID compliant Audio Input: Mini-jack for stereo (3.5Ø )

770 x 542 x 180

770 x 496 x 50

7.57 Kg (with stand)

7.2 Kg (without stand and base) 200 x 100mm

Optional accessory and not included in standard package

0°C to +40°C 10%~85% To 3,000m

-10°C to +50°C 5%~85% To 5,000m

2. Operating Instructions

2.1 The Use of Remote Control

2.2 To Use the Menus

7 8 9

10 11 12 13 14 15 16 17

2.3 How to Connect

2.4 Front Panel Control Keys

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 5V

2 Green Video 10 Sync Ground

3 Blue Video 11 Not Used

4 Not Used 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 Clock-

13 CEC 14 NC

15 SCL 16 SDA

17 DDC/CEC Ground 18 +5V Power

19 Hot Plug Detect

3.3 Compatible Mode Table

PC Input Signal Reference Chart

Connect a computer to your TV set and set up the computer output signal in accordance with table below.

Default computer mode

Standard Resolution Horizontal Frequency (KHz) Vertical Frequency(Hz)

VGA 720 x 400 31.327 69.617

SVGA 800 x 600 37.879 60.317

XGA 1024 x 768 48.363 60.004

WXGA 1360 x 768* 47.72 59.799

*Recommended resolution

DVI/ PC HDMI Input Signal Reference Chart

1. When DVI port is being used: connect the DVI port of video device to your TV set with a DVI-to-HDMI line and set up the output signal of the video device in accordance with table below.

2. When HDMI port is being used: connect the HDMI ports of your computer and TV set with one HDMI wire and set up the output signal of the video device in accordance with table below.

Default HDMI Mode Standard Resolution Horizontal Frequency (KHz) Vertical Frequency(Hz)

VGA 640 x 480 37.879 60.317 VGA 720 x 400 31.327 69.617

SVGA 800 x 600 37.879 60.317

XGA 1024 x 768 48.363 60.004

SXGA 1280 x 1024 63.981 60.020

WXGA 1360 x 768* 47.72 59.799

*Recommended resolution

Video Input Signal Reference Chart

1. Connect the component signal or HDMI port of video device to your TV set and set up the output signal of the video device in accordance with table below.

2. If your computer display card supports signals of video format then you can set up following output signal.

Default Component or HDMI Mode

Standard Resolution Horizontal Frequency (KHz) Vertical Frequency (Hz)

SD 720 x 480i 15.734 60 SD 720 x 480p 31.5 60 SD 720 x 576i 15.625 50 SD 720 x 576p 31.25 50 HD 1280 x 720p 37.5 50 HD 1280 x 720p 45 60 HD 1920 x 1080i 28.125 50

HD 1920 x 1080i 33.75 60 FHD 1920 x 1080p 56.25 50 FHD 1920 x 1080p 67.5 60

Video systems supported by the TV, video modes

PAL D/K B/G I; NTSC M

Standard Definition Interface

You can also enjoy traditional program by using a DVD player or VCR Player. Connect this equipment to your TV via the Composite Input on the back of your TV.

4. Mechanical Instructions

1. Remove the screws to remove STAND and BASE.

2. Remove the screws to remove REAR COVER.

3. Remove the screws to remove AC COVER, BKT, MAIN BOARD and POWER BOARD.

4. Remove the screws to remove BKT and separate the BEZEL and PANEL.

5. Remove the screws to remove KEY BOARD, IR BOARD and SPEAKERS.

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AOC LE32A1710 Schematic

Specifications and Main Features

Frequently Asked Questions

User Manual