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This service information is designed for experienced repair technicians only and is not designed for use by the general public.
It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service or repair
the product or products dealt with in this service information by anyone else could result in serious injury or death.

SERVICE MANUAL

Model No.
Service Model
WARNING
©2010 Qingdao Haier Electronics Co., Ltd.
All rights reserved. Unauthorized copying and distribution is a violation of law.
Haier Group
Order No.
LED TV
HL37XLE2
HL37XLE2a
ZORAN745
TV1007S003V0
Chassis

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   Summary of Contents for Haier HL37XLE2

  • Page 1: Service Manual

    Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service or repair the product or products dealt with in this service information by anyone else could result in serious injury or death. ©2010 Qingdao Haier Electronics Co., Ltd. All rights reserved. Unauthorized copying and distribution is a violation of law.

  • Page 2: Table Of Contents

    Service Manual Model No.: HL37XLE2 CONTENTS Chapter 1.General Information 1-1. Document Information ............... 3 1-2. General Guidelines ................3 1-3. Important Notice ................... 3 1-3-1. Follow the regulations and warnings ............. 3 1-3-2. Be careful to the electrical shock ............3 1-3-3.

  • Page 3

    Service Manual Model No.: HL37XLE2 4-3-1. Function description:................16 4-3-2. Connector defi nition: ................16 4-4. LCD Panel ..................... 16 4-4-1. Function Description: Display the signal..........17 4-4-2. Connector defi nition: ................17 Chapter 5. Installation Instructions 5-1. External Equipment Connections ..........

  • Page 4: Chapter 1.general Information

    Service Manual Model No.: HL37XLE2 Chapter 1.General Information 1-1. Document Information Document format: Adobe PDF Author:Wang Nana Compiler:Bao Qinghong 1-2. General Guidelines When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or damaged by the short circuit.

  • Page 5: About Lead Free Solder (pbf)

    Service Manual Model No.: HL37XLE2 Such components commonly are called Electrostatically Sensitive (ES) Devices. The following techniques should be used to help reduce the incidence of component damage caused by electros static discharge (ESD). Electrostatically Sensitive (ES) Devices Some semiconductor (solid-state) devices can be damaged easily by static electricity. Such components commonly are called Electrostatically Sensitive (ES) Devices.

  • Page 6

    Service Manual Model No.: HL37XLE2 1. Always unplug the receiver AC power cord from the AC power source before: a. Removing or reinstalling any component, circuit board module or any other receiver assembly. b. Disconnecting or reconnecting any receiver electrical plug or other electrical connection.

  • Page 7: Ordering Spare Parts

    Service Manual Model No.: HL37XLE2 12. Use only a grounded-tip soldering iron to solder or unsolder ES devices. 13. Use only an anti-static type solder removal device. Some solder removal devices not classifi ed as "anti-static" can generate electrical charges suffi cient to damage ES devices.

  • Page 8: How To Read This Service Manual

    Service Manual Model No.: HL37XLE2 1-4. How to Read this Service Manual 1-4-1. Using icons: Icons are used to attract the attention of the reader to specific information. The meaning of each icon is described in the table below: Note: A “note”...

  • Page 9: Chapter 2. Specifi Cation

    Service Manual Model No.: HL37XLE2 Chapter 2. Specifi cation 2-1. Specifi cation list Model HL37XLE2 Screen Size 37 inch Aspect Ratio 16:9 Resolution 1920x1080 Response Time (ms) 6.5 (G TO G) Angel of View 178o Color Display 16777216 No. of Preset Channels...

  • Page 10: External Pictures (four Faces)

    Service Manual Model No.: HL37XLE2 2-2. External pictures (four faces) Front Side Left Side...

  • Page 11

    Service Manual Model No.: HL37XLE2 Right Side Back Side...

  • Page 12: Chapter 3. Disassemble And Assemble

    Service Manual Model No.: HL37XLE2 Chapter 3. Disassemble and Assemble 3-1. Remove the Stand 1. Lay down the unit so that back cover faces upward 2. Then remove the back cover from the unit. 2. Remove the five screws from the back cover which are indicated with the circles in the 3-3.

  • Page 13: Remove The Power Supply Modules

    Service Manual Model No.: HL37XLE2 3-7. Remove the Remote Control Board Remove the one screw indicated by red circles in below picture. Disconnected the coupler CNE3 and CNE2 Remove the remote control board. 3-8. Remove the Speaker Then put the terminal bracket to the side.

  • Page 14: Chapter 4. Location Of Controls And Components

    Service Manual Model No.: HL37XLE2 Chapter 4. Location of Controls and Components 4-1. Board Location Parts number Description DC1CW0E0100M Main Board(0090725996) 0094001856A Power Board 0094001901DA Panel 4-2. Main Board & AV Board...

  • Page 15: Function Description

    Service Manual Model No.: HL37XLE2 4-2-1. Function Description: Main Board Process signal which incept from exterior equipment then translate into signal that panel can display. 4-2-2. Connector defi nition Main board connector Power connectors (CN17) CN17 CN17 Pin number Pin number...

  • Page 16: Power Supply Board

    Service Manual Model No.: HL37XLE2 Speaker connector (CON2) Pin number Signal name Description Other connectors: CNB2 to Upgrade the program of ZORAN745 (U1) AND FLASH (U3) 4-3. Power Supply Board...

  • Page 17: Function Description

    Service Manual Model No.: HL37XLE2 4-3-1. Function description: To supply power for Mainboard, Panel. 4-3-2. Connector defi nition: INPUT CONNECTOR (CON2/CON3) CON2 CON3 Pin number Signal name Pin number Signal name +12V +24V +12V +24V +24V +12V +24V +24V +5VSB...

  • Page 18: Function Description: Display The Signal

    Service Manual Model No.: HL37XLE2 4-4-1. Function Description: Display the signal. 4-4-2. Connector defi nition: Symbol Description Symbol Description Ground Ground No connection Ground CH2_0- LVDS Channel 2, Signal 0- Reserved AUO Internal Use Only CH2_0+ LVDS Channel 2, Signal 0+...

  • Page 19

    Service Manual Model No.: HL37XLE2 CN1 (Header):S14B-PH-SM4-TB (D)(LF)(JST) or equivalent. LED Driver Connector: CI1114M1HR0-NH (Cvilux) Pin No Symbol Description VDDB Operating Voltage Supply, +24V DC regulated VDDB Operating Voltage Supply, +24V DC regulated VDDB Operating Voltage Supply, +24V DC regulated...

  • Page 20: Chapter 5. Installation Instructions

    Service Manual Model No.: HL37XLE2 Chapter 5. Installation Instructions 5-1. External Equipment Connections CABLE PICTURE AUDIO HDMI INPUT MUTE RECALL MENU EXIT ENTER SLEEP DISPLAY PLAY/PAUSE STOP PREV NEXT REPEAT MTS/SAP FREEZE CH.LIST GUIDE FAVORITE Alkaline battery (AAA) x 2 Remote control Owner’s manual...

  • Page 21: Choose Your Connection

    Service Manual Model No.: HL37XLE2 Installation Choose Your Connection External A/V Source Setup There are several ways to connect your television, depending on the components you want to connect How to connect and the quality of the signal you want to be displayed.

  • Page 22: Connecting A Digital Audio Output

    Service Manual Model No.: HL37XLE2 How to connect Component video device • Use the TV’s COMPOSITE, COMPONENT or HDMI jack for video connections, depending on your set-top box connector. Then, make the corresponding audio connections. Component video cable: Green=Y Blue=CB/PB...

  • Page 23: Connecting A Computer

    Service Manual Model No.: HL37XLE2 Note Connecting a computer Use a DVI cable. Avoid keeping a fixed image on the TV’s screen How to connect for a long period of time. The fixed image may become permanently imprinted on the screen.

  • Page 24: Power Source

    Service Manual Model No.: HL37XLE2 appropriately. To get the best picture quality, adjust the output resolution of the source device, if available, to 1280 720 for the 32" TV and 1920 x 1080 for the 37" and 42" TVs. •...

  • Page 25: Chapter 6. Operation Instructions

    Service Manual Model No.: HL37XLE2 Chapter 6. Operation Instructions 6-1. Front Panel Controls MENU INPUT MENU INPUT Menu display. Press to access the on-screen Press to scan through channels. To scan quickly 1 MENU menu display. through channels, press and hold down either 4 CH +/- +/- .

  • Page 26: Back Panel Controls

    Service Manual Model No.: HL37XLE2 6-2. Back Panel Controls Introduction Connection Options Back panel connections MENU INPUT Connect a video cable from a computer to this Connect the audio L/R cables from the composite 7 AUDIO In PC Video In jack.

  • Page 27: Setting Up Your Remote Control

    Service Manual Model No.: HL37XLE2 6-3. Setting Up Your Remote Control The remote control cannot be operated unless the batteries are properly loaded. When using the remote control, aim it at the remote sensor on the TV. 1 POWER Press to turn on and off the TV.

  • Page 28: Chapter 7. Electrical Parts

    Service Manual Model No.: HL37XLE2 Chapter 7. Electrical Parts 7-1. Block Diagram...

  • Page 29: Circuit Diagram

    Service Manual Model No.: HL37XLE2 7-2. Circuit Diagram...

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  • Page 45: Circuit Diagram

    Service Manual Model No.: HL37XLE2 7-2. Circuit Diagram TUNER CON2 CON3...

  • Page 46: Service Mode

    Service Manual Model No.: HL37XLE2 Chapter 8. Measurements and Adjustments 8-1. Service Mode 8-1-1.How to enter into Service Mode The way to the factory mode menu: Step 1: Press the "Menu" button, Step 1: Select the Audio menu, Step 2: Input 8893, Step 3: Press the “Enter”...

  • Page 47: Auto Color

    Service Manual Model No.: HL37XLE2 8-2-2. Auto Color The option could only be used in the VGA and Component model. When we found the color in the two models was abnormal. Then we can use the function to adjust it automatically...

  • Page 48: White Balance/color Temp

    Service Manual Model No.: HL37XLE2 8-2-3. white Balance/Color Temp. The function could adjust the Color Temperature, used when debugging.

  • Page 49: Picture Mode

    Service Manual Model No.: HL37XLE2 8-2-4. Picture Mode...

  • Page 50: Audio Mode

    Service Manual Model No.: HL37XLE2 8-2-5. Audio Mode...

  • Page 51: Sspll Setting

    Service Manual Model No.: HL37XLE2 8-2-6. SSPLL Setting 8-2-6. Aging Mode Turn it "ON" to enter the aging mode,.This is for factory run-in testing.The screen would desplay red,green,blue and black screen repeatedly.Each color screen could be exam at that time (See...

  • Page 52: Reset To Default

    Service Manual Model No.: HL37XLE2 8-2-7. Reset to default The function could make the adjustment of Service mode turn back to the factory default setting.

  • Page 53: Reset All Settings To Default

    Service Manual Model No.: HL37XLE2 8-2-8. Reset all settings to default The function could make the model turn back to the factory default setting. Remark: The date of the chart only is an example, please don’t adjust the factory mode base on it.

  • Page 54: Chapter 9. Trouble Shooting

    Service Manual Model No.: HL37XLE2 Chapter 9. Trouble shooting 9-1. Simple check Verify if the television is properly plugged Verify if the television is properly supplied power No picture/ No sound Verify if electricity is available. Verify if correct signals are input...

  • Page 55: Mainboard Failure Check

    Service Manual Model No.: HL37XLE2 9-2. Mainboard Failure Check Symptom: No Sound No Sound (All Mode) Fail Check the input Change Source input Source Pass Fail Check Re-soldering or change input/output IC U13 Pass Fail Check Re-soldering or change input/output...

  • Page 56: Pannel Failure

    Service Manual Model No.: HL37XLE2 9-3. Pannel Failure Failure Mode...

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  • Page 61

    Sincere Forever Haier Group Haier Industrial Park, No.1, Haier Road 266101, Qingdao, China http://www.haier.com Printed in China...

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    Service Manual Model No.: HL37XLE2...

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