AOC LE32K1D7, LE40K1D7 Schematic

31.5″&40″ LED TV AOC LE32K1D7&LE40K1D7

Service

Horizontal Frequency

31~65KHz (D-SUB)

Table of Contents

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 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

SAFETY NOTICE

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

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

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 Customer Model TPV Model

LE32K1D7 E32BA2NBAFG12N

A00 Apr.10,2011 Initial Release

LE40K1D7 E40B82NBAFG12N

1. General Specification

Model LE32K1D7 LE40K1D7

Screen Size 32”diagonal 40” diagonal

Resolution 1366x768 1920 x 1080

Bulgarian, Croatian, Czech, Danish, Dutch, English, Finnish, French,

OSD Languages

View Angle 178°(H)/178°(V) 176°(H)/176°(V)

Brightness 350 cd/m2 400 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

Gaeilge, German, Greek, Hungarian, Italian, Norwegian, Polish, Portuguese, Rumanian, Russian, Serbian, Slovakian, Slovenian, Spanish, Swedish, Turkish, Latvian, Estonian, Lithuanian, Ukrainian, Byelorussian

PC IN(D-SUB+PC Audio) SCART(RGB+AV) SPDIF out. AV out

Tuner Common INTERFACE

Side Connectors

Down-facing Connectors

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)

Set Dimension(W x H x D) (w/o base and stand)(mm)

Net Weight (Kg) 9.82 13.37

Wall Mount Size 200 x 100mm 200 x 200mm

Operation Temperature 0ºC~35ºC

USB x 2 Headphone HDMI x 2

Component AV HDMI x 1

760 x 538 x 203 947 x 642 x 234

760 x478 x 40 947 x584 x 37

Picture JPEG(*.JPG), PNG, BMP

USB Photo/Music/Video Supported Formats

Audio

Video

MPEG1(*.MP3) 32k, 64k, 96k, 128k, 196k, 256k, 320kbps 32k, 44.1k, 48kHz

MPEG1/2(*.AVI, *.MPG, *.MPEG, *.TS) MPEG4(*.AVI, *.MP4, *.MOV, *.MKV) H.264(*.AVI, *.MP4, *.MOV, *.MKV, *.TS) XviD(*.AVI)

2. Operating Instructions

2.1 Remote Control

Sleep

You can set a time period for which the TV will be turned off automatically.

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.

2. Selecting your country

Press ▲/▼ to select “Language”, and press OK.

Press ▲/▼ to select your country.

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

6. Initial Setup Completed

Press▲/▼ to select “Scan or Skip Scan”, and press OK.

10 11

12 13

2.3 Controls and Connections

Controls

Connections

Item Description

Connects to your headphones. If your headphones do not match the jack, use a

Headphone Jack

suitable plug adapter (not supplied). While headphones are connected, the TV speakers are muted.

SPDIF* (Coaxial Digital Audio Out)

AV IN 1 (AV/S-VIDEO)/L-AUDIO-R

USB/Service Insert USB storage device to the USB port to view photos or listen to music.

HDMI IN 1/ 2

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.

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).

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.) 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.

PC IN (RGB/AUDIO)

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

VHF/UHF/Cable Input

*SPDIF

Sony/Philips Digital Interconnect Format. S/PDIF is mostly used to transmit compressed multichannel audio from a media player to an amplifier/receiver.

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.

RF (Radio Frequency or modulated signal design used as the carrier for television broadcasts.) input that connects to your Cable or VHF/UHF antenna.

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

Full SCART

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+

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)

Green input

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.

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.

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

5. Unscrew the 12 screws to remove the MAIN, POWER BOARD and BRACKET.

6. Separate the 2 SPEAKERS.

Note: Left: Red wires Right: White wires.

7. a. Unscrew the 3 screws to remove the BRACKET 32-GMBH-5365SCALAR-HOLDER-BKT and BRACKET

AC-IN.

b. Remove the 10 BRACKET PANEL-HOLDERs.

BRACKET 32-GMBH-5365SCA LAR-HOLDER-BKT

BRACKET PANEL-HOLDER

8. Remove the MYLAR and FFC CABLE.

BRACKET AC-IN

MYLAR

FFC CABLE

The PANEL.

The BEZEL.

LE40K1D7

1. Unscrew the 5 screws to remove the STAND ASS’Y.

2. Unscrew the 4 screws to separate the BRACKET BASE and BASE.

3. Unscrew the 17 screws to remove the REAR COVER.

4. a. Disconnect all the WIRES, TAPE_INSULATING and CONDUCTIVE TAPE. b. Unscrew the 3 screws to remove the

AC COVER and BRACKET MAINPCB-RIGHT.

CONDUCTIVE TAPE

5. Unscrew the 14 screws to remove MAIN, POWER BOARD and BRACKET PANEL-UDN-1.

AC COVER

BRACKET MAINPCB-RIGHT

TAPE_INSULATING

BRACKET PANEL-UDN-1

6. Tear up the 5 TAPE_INSULATINGs and 2 SPEAKERS.

Note: Speaker Left: Red wires Right: White wires.

Speaker Speaker

7. Remove the INSULATING SHEET and BRACKET PANEL-HOLDER.

INSULATING SHEET

The PANEL.

The BEZEL.

5. Repair Flow Chart

1. No power

No power (LED “Off”)

Check the AC input and the

ower is “ON”?

Yes

Power board output=5V?

Yes

Check the IR board and LED

Replace the IR board

Replace the main board

Power “On”

Replace the power board

2. Can’t start

Can’t start（LED red）

Power board output＝24V?

Yes

Check the power key is under control?

Check the IR receiver is normal?

Replace the power board

Yes

Replace the key board

Yes

Replace the IR board

Replace the main board

Replace the Power board

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