AOC LE32K1D7 User manual

31.5″&40″LEDTV AOCLE32K1D7&LE40K1D7
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Service
Service
Service
Horizontal Frequency
31~65KHz (D-SUB)
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
6.2 Power Board………………..…….…….………......39
6.3 Key Board………………………..……..………......45
6.4 IR Board………………………….……..………......45
7.Adjustment……..…………………………................46
8.Block Diagram.……...............................................47
9.Schematic Diagram…..…………....………………...49
9.1 Main Board…………………………………...….....49
9.2 Power Board…………..….….……...…………......77
9.3 Key Board……………….……….……………........88
9.4 IR Board……...………….……….…………….......89
10.Exploded View………………………………….…...90
11.BOM List……………….………………….………….94
Table of Contents.......……....................................…..1
Important Safety Notice.......................................……2
Revision List……………………………………………….3
1.General Specification..............................……...…....4
2.Operating Instructions………………...…….………....5
2.1 Remote Control……….……….…………………......5
2.2 To Use The Menu…...…………….…….………......6
2.3 Controls and Connections…………………..…......15
3.Input/Output Specification…………........................17
4.Mechanical Instructions……………………...............19
5.Repair Flow Chart ……………………….…….……..29
6.PCB Layout ………………..………………....….......35
6.1 Main Board…………..……………...…….…….......35

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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 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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Revision List
Version Release Date Revision Instructions Customer Model TPV Model
A00 Apr.10,2011 Initial Release
LE32K1D7 E32BA2NBAFG12N
LE40K1D7 E40B82NBAFG12N

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1. General Specification
Model LE32K1D7 LE40K1D7
Screen Size 32”diagonal 40” diagonal
Resolution 1366x768 1920 x 1080
OSD Languages
Bulgarian, Croatian, Czech, Danish, Dutch, English, Finnish, French,
Gaeilge, German, Greek, Hungarian, Italian, Norwegian, Polish, Portuguese,
Rumanian, Russian, Serbian, Slovakian, Slovenian, Spanish, Swedish,
Turkish, Latvian, Estonian, Lithuanian, Ukrainian, Byelorussian
View Angle 178°(H)/178°(V) 176°(H)/176°(V)
Brightness 350 cd/m2400 cd/m2
Video System PAL/SECAM/DVBT/DVBC
Audio System B/G, D/K, I, LL’ B/G, D/K, I, LL’
Speaker Output Speaker:10W x 2 Speaker: 10W x 2
Rear Connectors
PC IN(D-SUB+PC Audio)
SCART(RGB+AV)
SPDIF out.
AV out
Side Connectors
Tuner
Common INTERFACE
USB x 2
Headphone
HDMI x 2
Down-facing Connectors
Component
AV
HDMI x 1
Input Voltage 220-240V~, 50-60Hz
Power consumption < 60W < 80W
Standby Power Consumption <0.5W
Set Dimension(W x H x D) (with
base and stand)(mm) 760 x 538 x 203 947 x 642 x 234
Set Dimension(W x H x D)
(w/o base and stand)(mm) 760 x478 x 40 947 x584 x 37
Net Weight (Kg) 9.82 13.37
Wall Mount Size 200 x 100mm 200 x 200mm
Operation Temperature 0ºC~35ºC
USB Photo/Music/Video
Supported Formats
Picture JPEG(*.JPG), PNG, BMP
Audio
MPEG1(*.MP3)
32k, 64k, 96k, 128k, 196k, 256k, 320kbps
32k, 44.1k, 48kHz
Video
MPEG1/2(*.AVI, *.MPG, *.MPEG, *.TS)
MPEG4(*.AVI, *.MP4, *.MOV, *.MKV)
H.264(*.AVI, *.MP4, *.MOV, *.MKV, *.TS)
XviD(*.AVI)

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2. Operating Instructions
2.1 Remote Control
Sleep
You can set a time period for which the TV will be turned off automatically.

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2.2 To Use the Menu
Turning the TV On and Off
You can turn on the TV by using power switch button on the TV set or on the remote controller.
Initial Setting
When you first start up this AOC LCD TV set, please follow the Initial Wizard to your AOC LCD TV.
1. Selecting Language
Select your language: English, Deutsch, Français, Italiano, Español, Português, Nederlands.
Press ▲/▼to select “Language”, and press OK.
2. Selecting your country
Press ▲/▼to select your country.

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3. Selecting your mode
Press ▲/▼/◄/►to select “Home or Shop” mode then press OK.
4. Selecting your scan mode
Press ▲/▼to select “Analogue or Analogue and Digital” then press OK.
5. Initial Setup Channel Scan
Press▲/▼to select “Scan or Skip Scan”, and press OK.
6. Initial Setup Completed

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2.3 Controls and Connections
Controls
Connections

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Item Description
Headphone Jack
Connects to your headphones. If your headphones do not match the jack, use a
suitable plug adapter (not supplied). While headphones are connected, the TV
speakers are muted.
SPDIF*
(Coaxial Digital Audio Out)
Connect an external sound system with optical cable to the SPDIF out jack on the
back of your TV to the SPDIF IN jack and to the amplifier or receiver.
AV IN 1
(AV/S-VIDEO)/L-AUDIO-R
Connects to the COMPOSITE VIDEO output or S-Video output jack from your
video equipment that has COMPOSITE or S-Video VIDEO, and audio (L/R) jacks
can connect audio source to your TV. When connected, S-Video will take priority
over Composite video (Yellow jack).
USB/Service Insert USB storage device to the USB port to view photos or listen to music.
HDMI IN 1/ 2
HDMI (High-Definition Multimedia Interface) provides an uncompressed, all-digital
audio/video interface between this TV and any HDMI-equipped audio/video
equipment, such as a set-top box, DVD player, Blu-ray Disc player, A/V receiver as
well as PC. HDMI supports enhanced, or high-definition video, plus digital audio.
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 of HDMI IN.
HDMI connection is necessary to view 480i, 480p, 720p, 1080i and 1080p formats.
Be sure to use only an HDMI cable that bears the HDMI logo. (We do not supply
DVI-HDMI cable and DVI-HDMI adapter and HD15-HD15 cable.)
PC IN (RGB/AUDIO)
Connects to a personal computer’s video output connector using HD15-HD15
cable (analog RGB). Can also be connected to other analog RGB equipment. See
“PC Input Signal Reference Chart” on page 15 for the signals that can be
displayed.
For some Apple Macintosh computers, it may be necessary to use an adapter (not
supplied). If this is the case, connect the adapter to the computer before
connecting the HD15-HD15 cable.
If the picture is noisy, flickering or not clear, adjust Phase and Pitch of Screen
settings.
Component IN
1/(1080p/1080i/
720p/480p/480i)/L-AUDIO-R
Connects to your TV’s component video (YPbPr) and audio (L/R) jacks.
Component video provides better picture quality than the S-VIDEO or the
composite video connections. Component video (YPbPr) connection is necessary
to view 480i, 480p, 720p, 1080i and 1080p formats.
VHF/UHF/Cable Input RF (Radio Frequency or modulated signal design used as the carrier for television
broadcasts.) input that connects to your Cable or VHF/UHF antenna.
*SPDIF
Sony/Philips Digital Interconnect Format. S/PDIF is mostly used to transmit compressed multichannel audio from a
media player to an amplifier/receiver.

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3. Input/Output Specification
3.1 Input Signal Connector
D-SUB
Pin No. Signal Pin No. Signal
1 Red 9 +5V (supply from PC)
2 Green 10 Sync GND
3 Blue 11 UART-RX
4 UART-TX 12 Bi-directional data (SDA)
5 GND 13 H-sync
6 Red GND 14 V-sync (vclk)
7 Green GND 15 Data clock (SCL)
8 Blue GND
HDMI
Pin No. Signal Pin No. Signal
1 TMDS Data2+ 11 TMDS Clock Shield
2 TMDS Data2 shield 12 TMDS Clock-
3 TDMS Data2- 13 CEC
4 TMDS Data1+ 14 Reserved (N.C. on device)
5 TMDS Data1 shield 15 SCL
6 TMDS Data1- 16 SDA
7 TMDS Data0+ 17 DDC/CEC Ground
8 TMDS Data0 shield 18 +5V Power
9 TMDS Data0- 19 Hot Plug Detect
10 TMDS Clock+
Full SCART
Pin No. Signal Pin No. Signal
1 Audio output B ( right ) 12 Comms data 1
2 Audio input B ( right ) 13 Ground (red)
3 Audio output A ( left ) 14 Ground (blanking)
4 Ground (audio ) 15 Red input or Chroma
5 Ground ( blue ) 16 RGB switching control
6 Audio input A ( left ) 17 Ground ( video input & output )
7 Blue input 18 Ground ( RGB switching control )
8 Function select 19 Video output ( composite )
9 Ground ( green ) 20 Sync or Video input (composite or Y)
10 Comms data 2 21 Shield (Ground)
11 Green input

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3.2 Compatible Mode Table
PC Input Signal Reference Chart
After connecting the PC to the TV, set the output signal from the PC according to the chart below.
Presetting PC Mode
Standard Resolution Refresh Rate (Hz)
VESA 640 x 480 60
VESA 800 x 600 60
VESA 1024 x 768 60
VESA 1360 x 768 60
VESA 1920 x 1080(FHD Model) 60
Video Input Signal Reference Chart
After connecting the video input to the TV, set the output signal from the video input according to the chart below.
Presetting Video Mode
Standard Resolution Refresh Rate (Hz)
SD 480i 60
SD 480P 60
SD 576i 50
SD 576P 50
HD 720P 50
HD 720P 60
HD 1080i 50
HD 1080i 60
FHD 1080p 50
FHD 1080p 60
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 or S-Video Input on the back of your TV.
Refer to the Quick Setup Guide (supplied) when connecting other equipment to your TV.

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4. Mechanical Instructions
LE32K1D7
1. Unscrew the 5 screws to remove the STAND ASS'Y.
2. Unscrew the 4 screws to separate the BASE ASS'Y.

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3. Unscrew the 13 screws to remove the REAR COVER and CABLE TIE.
4. a. Disconnect all the WIRES.
b. Unscrew the 4 screws to remove the BRACKET HINGE.
c. Unscrew the 2 screws to remove the AC COVER and BRACKET AC-IN.
BRACKET HINGE