AOC L37W465 User manual

37’’ LCD TV AOC L37W465
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Service
Service
Service
ÏÔʾ×ÀÃæ.scf
Horizontal Frequency
31- 60 KHz
TABLE OF CONTENTS
Description Page Description Page
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
R FOR TH
UNIT WHEN S
7.PCB Layout……….……….….……………...….…….....26
7.1 Main Board…………………..……….…...……...........26
7.2 Power Board…………...…...……………….....….......28
7.3 Key Board….…......…………...............…..................29
8.Block Diagram..……..............…..................................30
8.1 Main Board......……….…..……................................30
8.2 Power Board…...……...….…....................................31
9. Schematic Diagram...……………………………….......32
9.1 Main Board…….........…..……..………......................32
9.2 Power Board...………………….……………………...50
9.3 Audio Board…………………..……….………………..51
9.4 Key Board …………….………………………………..52
9.5 Side Board………….…………………………………..53
10.Exploded View………………….....………...……….....54
11.BOM List……….....…………….…….…..….…….....…56
12.Different Parts List…………………………...……...….88
Table Of Contents.......…….…..............................…........1
Revision List.…….…............................................…….....2
Important Safety Notice.……..................……………........3
1. Monitor Specification..…............................………........4
2. Operating Instructions……...……………….……….......5
2.1 The Use Of Remote Control..………….…..................5
2.2 Front Panel Control Knobs..............….........…...........6
2.3 OSD Operations…………….…............……...............7
2.4 How To Connect...……….........................….............14
3. Input/Output Specification............………….…...........16
3.1 Input Signal Connector............……………...............16
3.2 Factory Preset Display Modes........………...............17
4. Mechanical Instructions..………....……......................18
5. Repair Flow Chart…….……………………..................22
6. White Balance, Luminance Adjustment………...….....24

37’’ LCD TV AOC L37W465
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Revision List
Version
Release Date
Revision History
TPV Model
A00
Dec.-25-2006
Initial Release
E376AZNKD1A2NP
A01
Nov.-11-2008
Update BOM
E376AZNKD1A2NP
Add new BOM
E376AZNKW1A52N

37’’ LCD TV AOC L37W465
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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 may 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 radiation 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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1. General Specification

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2. Operations Instructions
2.1 The Use of Remote Control
Remote control button function as follow

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2.2 Front Panel Control Knobs

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2.3 OSD Operations

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2.4 How to Connect

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3. Input/Output Specification
3.1 Input Signal connector
This procedure gives you instructions for installing and using the LCD TV display.
Lay the display on the desired operation and plug the power cord into a convenient AC outlet. Three-wire power cord
must be shielded and is provided as a safety precaution as it connects the chassis and cabinet to the electrical
conduct ground. If the AC outlet in your location does not have provisions for the grounded type plug, the installer
should attach the proper adapter to ensure a safe ground potential.
Connect the 15-pin D-SUB color display shielded signal cable to your signal system device and lock both screws on
the connector to ensure firm grounding. The connector information is as follow:
15 - Pin Color Display Signal Cable
Pin
Signal Assignment
Pin
Signal Assignment
1
Red Video
9
No Pin!
2
Green Video
10
Sync. Ground
3
Blue Video
11
SDA (Remote Control)
4
SCL (Remote Control)
12
Serial Data for DDC
5
GROUND
13
Horizontal Sync.
6
Red Video Ground
14
Vertical Sync.
7
Green Video Ground
15
Serial Clock for DDC
8
Blue Video Ground
HDMI Digital connector pin assignments
Pin
Signal Assignment
Pin
Signal Assignment
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

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Apply power to the display by turning the power switch to the "ON" position and allow about ten seconds for
Panel warm-up. The Power-On indicator lights "GREEN" when the display is on.
With proper signals feed to the display, a pattern or data should appear on the screen, adjust the brightness and
contrast to the most pleasing display, or press auto-adjust to get the best picture-quality.
This TV (with PC function) has power saving function following the VESA DPMS. Be sure to connect the signal
cable to the PC.
If your TV requires service, it must be returned with the power cord.
3.2 Factory Preset Display Modes:
Analog RGB input signal timing
VESA MODES
Horizontal
Vertical
Mode
Resolution
Total
Nominal
Frequency
(KHz)
Sync
Polarity
Nominal
Freq.
(Hz)
Sync
Polarit
y
Nominal
Pixel
Clock
(MHz)
VGA
640x480@60Hz
800 x 525
31.469
N
59.940
N
25.175
640x480@72Hz
832 x 520
37.861
N
72.809
N
31.500
640x480@75Hz
840 x 500
37.5
N
75
N
31.500
SVGA
800x600@56Hz
1024 x 625
35.156
P
56.25
P
36.000
800x600@60Hz
1056 x 628
37.879
P
60.317
P
40.000
800x600@72Hz
1040 x 666
48.097
P
72.188
P
40.000
800x600@75Hz
1056 x 625
460875
P
75
P
49.5
XGA
1024x768@60Hz
1344x806
48.363
N
60.004
N
65.000
1024x768@70Hz
1328x806
56.476
N
70.069
N
75.000
1024x768@75Hz
1312x800
60.023
P
75.029
P
78.750
WXGA
1360x768@60Hz
1792x795
47.712
P
60.015
P
85.5
HDMI input signal timing
VESA MODES
Horizontal
Vertical
Mode
Resolution
Total
Nominal
Frequency
(KHz)
Sync
Polarity
Nominal
Freq.
(Hz)
Sync
Polarity
Nominal
Pixel
Clock
(MHz)
720P
1280×720P
45.00
60
74.25
1080i
1920X1080i
33.75
60
74.25
480P
720X480P
31.54
60
27.00

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4. Mechanical Instructions
Step
Figure
Descripti
on
Preparation
and Remove
base
Remove
the screws
remarked
in red
Remove back
cover
Remove
the screws
Remarked
in red
Remove the
shield
Remove
the screws
Remarked
in red

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Remove the
boards
Remove
the screws
Remarked
in red

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Remove
main frame
Remove
the screws
remarked
in red