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18.5&21.5&24 TV Monitor AOC T942we&T2242we&T2442e

Service
Service
Service

TABLE OF CONTENTS

Description Page Description Page

Table of Contents............................................................1 6.1 Main Board....................................................36
Important Safety Notice...................................................2 6.2 Power Board..................................................40
Revision List.........................................................3 6.3 Key Board.....................................................46
1. General Specification..................................................4 6.4 IR Board.......................................................46
2. Operating Instructions............................................5 7. Adjustment.......................................................47
2.1 The Use of Remote Control...................................5 8. Block Diagram........................................................48
2.2 To Use the Menus................................................6 9. Schematic Diagram..........................................50
2.3 How to Connect................................................13 9.1 Main Board....................................................50
2.4 Front Panel Control Knobs..................................16 9.2 Power Board..................................................70
3. Input/Output Specification.......................................18 9.3 Key Board.....................................................74
4. Mechanical Instructions.........................................22 9.4 IR Board........................................................75
5. Repair Flow Chart ..............................................29 10. Exploded View..............................................76
6. PCB Layout .......................................................36 11. BOM List......................................................79

SAFETY NOTICE

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

1
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.)

2
Revision List
Note: Check updating contents, please input keywords in the "Find box" of PDF and click "OK". After that, it will
automatically locate to the updating contents.
Customer
Version Release Date Revision Instructions TPV Model
Model

A00 Aug.2,2010 Initial Release T2242We V2AAAANSX4K66N

A01 Oct.15,2010 Add new customer model T942We V1BAAANSX4K73N

A02 Dec.9,2010 Add new customer model T2442e V24AAANCX4ACNN

A03 Dec.15,2010 Add new model T2242We V2AAAANCX4ADNN
Add new models,
lead in the new power board[PCB T2242We V2AAAANCX41GNN
P/N: 715G3977P04000004L]
A04 Dec.28,2010 Update as below:
PCB Layout
Schematic T2442e V24AAANCX41GNN
BOM
T2242WE V2AAAANCX4PUNN
A05 Jan.18,2011 Add new models
T2442e V24AAANCX4PUNN

A06 Mar.01,2011 Add the new model T942We V1BAAANSX4K83N

V2AAAANCX4ACNN
T2242WE
A07 May.13,2011 Add new model V2AAAANEX4GGNN

T2442e V24AAANCX4A2NN

T2442E V24AAANAX4UNNN
A08 Dec.13,2011 Add new models
T2442E V24AAANCX4GGNN

3
1. General Specification

Model T942we T2242we T2442e

Panel size 470mm (18.5") 546mm (21.5") 609mm (24")

Resolution 1366 x 768 1920 x 1080 1920 x 1080

Horizontal 170