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32&37&42LCD TV AOC L32W981&L37W981&L42W98H
Service
Service
Service
TABLE OF CONTENTS
Description Page Description Page
Table Of Contents......................................................1 6.1.Main Board.................................................27
Important Safety Notice...................................................2 6.2.Power Board.................................................30
Revision List.........................................................3 6.3.Key Board.............................................36
1. General Specification...............................................4 6.4.IR Board......................................................36
2. Operating Instructions.........................................5 7. Adjustment............................................................37
2.1. The Use Of Remote Control.................................5 8. Block Diagram..................................................39
2.2. To Use The Menu............................................7 9. Schematic.....................................................40
2.3. How To Connect..............................................13 9.1 Main Board.................................................40
2.4. Front Panel Control Knobs.................................17 9.2.Power Board...............................................58
3. Input/Output Specification.......................................18 9.3.Key Board................................................60
4. Mechanical Instructions.........................................20 10. Exploded View..............................................60
5. Repair Flow Chart ..............................................23 11.BOM List.......................................................63
6. PCB Layout ....................................................27 12.Different Parts List.........................................139
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
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32&37&42LCD TV AOC L32W981&L37W981&L42W98H
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.)
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32&37&42LCD TV AOC L32W981&L37W981&L42W98H
Revision List
Version Release Date Revision Instructions Customer Model TPV Model
E328M2NBW8ACNN
L32W981
E328M2NBW8AC2N
A00 Aug.-19-2008 Initial Release L37W981 E378A2NBW8ACNN
L42W98H E428M2NBW8AC2N
L32W981 E32RX2NBW8AC2N
A01 Nov.-21-2008 Add new BOM
L37W981 E37RA2NBW8AC2N
A02 Dec.-16-2008 Add new BOM L42W98H E42RM2NBW8AC2N
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32&37&42LCD TV AOC L32W981&L37W981&L42W98H
1. General Specification
Model No. L32W981 L37W981 L42W98H
DISPLAY
Aspect Ratio 16:9 16:9 16:9
Resolution 1366 x 768 1366 x 768 1920 x 1080
English, German, French, Italian, Spanish, Portuguese, Dutch, Danish, Finnish,
OSD Language
Swedish, Norwegian, Polish, Russian, Greek
ENHANCEMENT
Sound Output (RMS
2x5 W 2x10 W 2x10 W
Watts)
Sound Mode Rock, Pop, Live, Dance, Techno, Classic, Soft
Automatic, Panorama, 4:3, Movie expand 14:9, Movie expand 16:9, 16:9 subtitle, Wide
Picture Formats
screen
Picture Mode User, Cinema, Sport, Vivid, Hi-Bright
CONNECTIONS
Tuner input (75) SCART 1 / SCART 2 PC IN :VGA and Audio cable
Rear Connectors Component Video and L/R Audio input SPDIF Output (Digital audio out) AV L/R Audio
Output HDMI 1 / HDMI 2
Earphone Output AV In (Composite Audio/ Video) S-Video
Side Connectors
HDMI 3
WEIGHT & DIMENSIOIN
783 mm 904 mm 1009.4 mm
Product Dimension
209mm 230 mm 262.2 mm
(W x D x H)
559 mm 629 mm 688.1mm
Net Weight 11.3 kg 16 kg 21.3 kg
POWER
Operation (Max.) < 170 W < 200 W < 250 W
Standby < 1W
AC100-240
AC100-240V V AC100-240V
Mains Power 2.4A 2.6A 2.8A
60-50Hz 60-50Hz 60-50Hz
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32&37&42LCD TV AOC L32W981&L37W981&L42W98H
2. Operating Instructions
2.1 The Use of Remote Control
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32&37&42LCD TV AOC L32W981&L37W981&L42W98H
Picture format
1. Press the RATIO button on the remote control to enter the picture format menu.
2. Press the o/oe buttons to select a picture format and press the OK button to confirm your choice.