Haier HL42XP22 Schematic

42″ LCD TV Haier HL42XP22

Service

Horizontal Frequency

31~68 KHz

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…………………….……...….......6

3. Input/Output Specification…………......................…....7

4. Mechanical Instructions……………………...................9

5. Repair Flow Chart ………………………………………12

6. PCB Layout …………...………………………………...17

6.1 Main Board…………..…………………...…….….......17

6.2 Power Board……..…………..………….…..…….......19

6.3 LED Board………………...……..……..………..........22

SAFETY NOTICE

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

6.4 Key Board………………………..……..……….......22

6.5 IR Board…………………………..……….…….......23

7. Adjustment..............................................................24

8. Block Diagram.…….................................................25

9. Wiring Diagram.……...............................................26

10. Schematic Diagram………..……..………………...27

10.1 Main Board…………….…………………...….......27

10.2 Power Board………..…....…………...……….......39

10.3 LED Board………………...…………..……….......40

10.4 Key Board……………….………….………….......41

10.5 IR Board……………………………….……….......42

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 Haier Company Equipment. The service

procedures recommended by Haier 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. Haier 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, Haier has not

undertaken any such broad evaluation. Accordingly, a servicer who uses a service procedure or tool which is not

recommended by Haier 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, Haier Company will be referred to as Haier.

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 Haier.

Haier 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 Model

A00 Jul.7,2010 Initial release E42AAZNKWNH6NNX

1. General Specification

Note

• This model complies with the specifications listed below.

• Designs and specifications are subject to change without notice.

• This model may not be compatible with features and/or specifications that may be added in the future.

Model No. HL32P2 HL42XP22

DISPLAY

Viewable 31.5W" 42W"

Television System NTSC standard,ATSC standard (8-VSB, Clear-QAM)

VHF: 2 through 13 UHF: 14 through 69

Channel Coverage

Rear Connectors

Cable TV: Mild band (A - 8 through A - 1,A through I),

Super band (J through W), Hyper band (AA through ZZ,AAA, BBB), Ultra band (65 through 94, 100 through 135)

CONNECTIONS

Tuner input (75Ω) AV IN: AV/S-Video and L/R audio input PC IN:D-SUB and PC Audio (Headphone mini-jack)

Supported scan rate: 640x480@60/72/75Hz, 720x400@70Hz,

800x600@56/60/72/75Hz, 1024x768@60/70/75Hz, 1280x720@60Hz, 1280x768@60Hz. Note: 1360x768@60Hz: For HL32P2 only. 1280x1024@60Hz, 1440x900@60Hz, 1680x1050@60Hz, 1920x1080@60Hz: For HL42XP22 only.

Recommended: For HL32P2: 1360x768@60Hz

For HL42XP22: 1920x1080@60Hz

Component Video and L/R Audio input

Supported resolution: 480i,480p,720p,1080i, 1080p

HDMI input

Supported scan rates: 480i, 480p, 720p, 1080i, 1080p

COMPONENT 1/2 AV/S-Video input SPDIF HDMI 1/2 AUDIO OUT

HDMI 3/4

Side Connectors

Dimensions with Stand (W x H x D)(inch) Dimensions without Stand (W x H x D)(inch)

Weight with Stand 20.94(lbs) 39.68(lbs)

Weight without Stand and Base

AV IN 2 Earphone Output USB PORT

WEIGHT & DIMENSIOIN

31.07x22.30x9.06 40.13x27.48x11.87

31.07x20.07x3.74 40.13x25.33x3.86

17.42(lbs) 33.07(lbs)

COMPONENT 1/2 AV/S-Video input SPDIF HDMI 1/2 AUDIO OUT

HDMI 3/4 AV IN 2 Earphone Output USB PORT

Model No. HL32P2 HL42XP22

WALL MOUNTING

VESA-compatible wall bracket (W x H)

Screw type Metric 6 x 10 mm Metric 6 x 10 mm

Power Consumption 150W 180W

Standby <1W

Mains Power 120V~60Hz

Audio Power 10W + 10W 10W + 10W

Ambient Temperature 41°F~95°F

Supplied Accessories

200 x 200 mm 400 x 200 mm

POWER

PACKAGE CONTENTS

TV unit x 1 Base x 1 Remote control x 1 (with two size AAA alkaline batteries) Screws x 6 (for 32" only) User manual x 1 Registration Card x 1

2. Operating Instructions

Please refer to user manual which is attached in this service manual.

3. Input/Output Specification

3.1 Input Signal Connector

D-SUB

HDMI

Pin No. Description Pin No. Description

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 H-Sync

6 Red Ground 14 V-Sync

7 Green Ground 15 Serial Clock for DDC

8 Blue Ground

Pin No. Description Pin No. Description

1 TMDS Data2+ 11 TMDS Clock Shield

2 TMDS Data2 Shield 12 TMDS Clock-

3 TDMS Data2- 13 CEC

4 TMDS Data1+ 14 NC

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+

3.2 Input Signal Timing

Analog RGB

VESA MODES

Horizontal Vertical

Nominal

Mode Resolution Total

640x480@60Hz 800 x 525 31.469 N 59.940 N 25.175

VGA

DOS 720x400@70Hz 900 x 449 31.469 N 70.087 P 28.322

SVGA

XGA

CVT-0.92M9 1280x720@60Hz 1664 x 748 44.722 N 59.855 P 74.500

WXGA 1280x768@60Hz 1440 x 790 47.396 P 59.995 N 68.250

SXGA 1280x1024@60Hz 1688 x 1066 63.981 P 60.020 P 108.000

WXGA+ 1440x900@60Hz 1600 x 926 55.469 P 59.901 N 88.750

WSXGA+ 1680x1050@60Hz 2240 x 1089 65.290 N 59.954 P 146.250

FHD 1920x1080@60Hz 2200 x 1125 67.500 P 60.000 P 148.500

640x480@72Hz 832 x 520 37.861 N 72.809 N 31.500 640x480@75Hz 840 x 500 37.500 N 75 N 31.500

800x600@56Hz 1024 x 625 35.156 P 56.250 P 36.000 800x600@60Hz 1056 x 628 37.879 P 60.317 P 40.000 800x600@72Hz 1040 x 666 48.077 P 72.188 P 50.000

800x600@75Hz 1056 x 625 46.875 P 75 P 49.500 1024x768@60Hz 1344 x 806 48.363 N 60.004 N 65.000 1024x768@70Hz 1328 x 806 56.476 N 70.069 N 75.000 1024x768@75Hz 1312 x 800 60.023 P 75.029 P 78.750

Frequency

(KHz)

Sync

Polarity

Nominal

Freq.

(Hz)

Sync

Polarity

HDMI

Nominal

Mode Resolution Total

DOS 720 x 400@70Hz 900 x 449 31.469 N 70.087 P 28.322 VGA 640 x 480@60Hz 800 x 525 31.469 N 59.94 N 25.175

SVGA 800 x 600@60Hz 1056 x 628 37.879 P 60.317 P 40

XGA 1024 x 768@60Hz 1344 x 806 48.363 N 60.004 N 65

WXGA 1280 x 768@60Hz 1664 x 798 47.396 P 59.995 N 68.25

CVT-0.92M9 1280 x 720@60Hz 1664 x 748 44.772 N 59.855 P 74.5

SXGA 1280 x 1024@60Hz 1688 x 1066 63.981 P 60.02 P 108

WXGA+ 1440 x 900@60Hz 1904 x 934 55.469 P 59.901 N 88.75

WSXGA+ 1680 x 1050@60Hz 1840 x 1080 65.29 N 59.954 P 146.25

FHD 1920x1080@60Hz 2200 x 1125 67.5 P 60 P 148.5

1080P 1920 x 1080P 2200 x 1125 67.5 60, 148.5

720P 1280 x 720P 1650 x 750 45 60, 74.25 1080i 1920 x 1080i 2200 x 1125 33.75 60, 74.25 480P 720 x 480P 858 x 525 31.5 60, 27.03

480i 720 x 480i 1716 x 525 15.75 60, 13.51

Frequency

(KHz)

Sync

Polarity

Nominal

Freq.

(Hz)

Sync

Polarity

Nominal

Pixel Clock (MHz)

Nominal

Pixel Clock (MHz)

4. Mechanical Instructions

Step1. Remove the REAR COVER and BASE.

Step2. Remove the MAIN BOARD and POWER BOARD.

Step3. Remove the BKT and SPEAKERS.

Step4. Separate the BEZEL and PANEL.

Step5. Remove the IR BOARD, KEY BOARD and LED BOARD.

5. Repair Flow Chart

1. No power

Check the AC input and the

Power board output=5V?

Check the IR board and LED

Replace the main board

No power (LED “Off”)

Power “On”

ower is “On”?

Yes

Replace the power board

Yes

Replace the IR 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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