Haier L32F1120 Service Manual
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Haier L32F1120 Service Manual

Chassis zr39745
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See also: Owner's Manual
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

WARNING
©2009 Qingdao Haier Electronics Co., Ltd.
All rights reserved. Unauthorized copying and distribution is a violation of law.
Haier Group
Model No. L32F1120
Z R 39745
Z
LCD TV
L32D1120
Chassis

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Summary of Contents for Haier L32F1120

  • 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. ©2009 Qingdao Haier Electronics Co., Ltd. All rights reserved. Unauthorized copying and distribution is a violation of law.

  • Page 2: Table Of Contents

    Chapter 1: General Information 1-1. Table of Contents 1. General Information................1-1. Table of Contents 1-2. General Guidelines 1-3. Important Notice 1-4. How to Read this Service Manual  6SHFL¿FDWLRQV..................3. Location of Controls and Components........... 3-1. Board Location 3-2. Main Board & AV Board 3-3.
  • Page 3 8. TV Operation..…………............. 8.1 How to enter into the factory model 8.2 How to update software 9. Trouble-shooting………….............. 9-1. Simple Check 9-2. Main Board Failure Check 9-3. Panel Failure - 02 -...

  • Page 4: General Guidelines

    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. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly installed.

  • Page 5: Safety Check After Repairment

    1-3-6 Safety Check after Repairment &RQ¿UP WKDW WKH VFUHZV SDUWV DQG ZLULQJ ZKLFK ZHUH UHPRYHG LQ RUGHU WR VHUYLFH DUH SXW in the original positions, or whether there are the positions which are deteriorated around the serviced places serviced or not. Check the insulation between the antenna terminal or external metal and the AC cord plug blades.

  • Page 6: Ordering Spare Parts

    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. Examples of typical ES devices are integrated circuits and some field-effect transistors and semiconductor "chip" components. The following techniques should be used to help reduce the ncidence of component damage caused by static by static electricity.

  • Page 7: How To Read This Service Manual

    1-3-8. Photo used in this manual The illustration and photos used in this Manual may not base on the final design of products, which may differ from your products in some way. 1-4. How to Read this Service Manual Using Icons: ,FRQV DUH XVHG WR DWWUDFW WKH DWWHQWLRQ RI WKH UHDGHU WR VSHFL¿F LQIRUPDWLRQ 7KH PHDQLQJ RI each icon is described in the table below: Note:...

  • Page 8: 6Shfl¿Fdwlrqv

    Service Manual Model No.: 2. Speci¿cations Model L32F1120/L32D1120 Screen Size inch Aspect Ratio 16:9 Resolution 1366x768 6.5 (GRAY TO Response Time (ms) GRAY) +88/-88(H), +88/-88 Angel of View (V) Typ. Color Display 16.7M Cable :1-135/ Air: No. of Preset Channels 2-69(ATV&DTV) OSD Language English...

  • Page 9: Location Of Controls And Components

    3. Location of Controls and Components 3-1 Board Location C Board B Board A Board L32F1120 Description L32D1120 A Board Main Board TB300713100M TB300713000M B Board Power Board 514C3206M03 514C3206M03 514C3208M01 C Board Power drive(Backlight driver board) 514C3208M01 3-2 Main Board - 08 -...

  • Page 10: Function Description

    3-2-1 Function Description: Main Board Process signal which incept from exterior equipment then translate into signal that panel can display. 3-2-2 Connector de fnition Main board connector Power connectors (J15 J16) high voltage Notes: J16-Pin 2: Backlight on/off: The system c an t urn o n or turn o ff t he backlight of T FT L CD P anel t hrough t he power supply unit path.
  • Page 11 remote connector (J6) Keypad and connector (J7) Speaker connector J11 Pin number Signal nameD escription - 10 -...

  • Page 12: Power Board

    3-3. Power Board 3-3-1 Function Description: Supply power for Main board, Panel. &RQQHFWRUGH¿QLWLRQ - 11 -...

  • Page 13: Lcd Panel

    3-4. LCD Panel V315B6-L04 3-4-1 Function Description: Display the signal.  &RQQHFWRU GH¿QLWLRQ Name Description Note N.C. No Connection EEPROM Serial Clock EEPROM Serial Data Ground RX0- Negative transmission data of pixel 0 RX0+ Positive transmission data of pixel 0 Ground RX1- Negative transmission data of pixel 1...
  • Page 14 Ground RX3- Negative transmission data of pixel 3 RX3+ Positive transmission data of pixel 3 Ground PANEL_SEL No Connection SELLVDS Select LVDS data format (2)(4) EEPROM Write Protect Ground Ground N.C. No Connection Power supply: +12V Power supply: +12V Power supply: +12V Power supply: +12V Power supply: +12V Note (1) Connector type: STARCONN 106H30-011100-A2-R or compatible...

  • Page 15: Disassemble And Assemble

    4. Disassemble and assemble 4-1 Remove the Pedestal 4-3. Remove the adhesive tape (The location of the adhesive tape as follows) Remove the adhesive tape indicated on the ¿JXUH DERYH /D\ GRZQ WKH XQLW VR WKDW UHDU FRYHU faces upward 5HPRYH WKH IRXU VFUHZ IURP WKH UHDU FRYHU LQGLFDWHG ZLWK 7KHQ UHPRYH WKH SHGHVWDO...

  • Page 16: Remove The Terminal Bracket

    4-3 Remove the Terminal Bracket 5HPRYH WKH WZR VFUHZ LQGLFDWHG 5HPRYH WKH WZR VFUHZ LQGLFDWHG RQ RQ WKH ¿JXUH DERYH E\ WKH ¿JXUH DERYH E\ 'LVFRQQHFWHG WKH FRXSOHU - CN513 J6 J7 J9 J15 J16 J11 7KHQ SXW WKH WHUPLQDO EUDFNHW WR WKH VLGH 5HPRYH WKH 0DLQ ERDUG 4-4 Remove the power module 5HPRYH WKH IRXU VFUHZ LQGLFDWHG RQ WKH...

  • Page 17: Remove The Speaker

    4-6 Remove the speaker 4-7 Remove the remote control Remove the screw, take out the remote Take out the speaker control board 5. Installation Instructions 5-1 External Equipment Connections Accessories Battery User GUIDE Remote Control - 16 -...
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  • Page 21: Hdmi Connections

    5-2 HDMI Connections When the source device(DVD player or Set Top Box) supports HDM How To Connect 1. Connect the source device to HDMI port of this TV with an HDMI cable(not supplied with this product). 2. No separated audio connection is necessary. How To Use If the source device supports Auto HDMI function, the output resolution of the source device will be automatically...

  • Page 22: Cable Sample

    Cable sample HDMI Cable (not supplied with the product) HDMI to DVI Cable ( not supplied with the product) Analog Audio Cable (Stereo to RCA type) (not supplied with the product) Connecting Headphones You can connect a set of headphones to your set if you wish to watch a TV programmer without disturbing the other people in the room.
  • Page 23 Power source TO USE AC POWER SOURCE Use the AC polarized line cord provided for operation on AC. Insert the AC cord plug into a standard polarized AC outlet. NOTES: 1HYHU FRQQHFW WKH $& OLQH FRUG SOXJ WR RWKHU WKDQ WKH VSHFL¿HG YROWDJH Use the attached power cord only.

  • Page 24: Operation Instructions

    6. Operation Instructions Basal information 6-1 Front panel controls 6.2 Back panel controls - 23 -...

  • Page 25: Universal Remote Control

    6-3 Setting Up Your Remote Control The remote control cannot be operated unless the batteries are properly loaded serted. When using the remote control, aim it at the remote control sensor on the TV. Function introduction 1.Press to turn on and off the TV. 2.Press repeatedly to cycle through the available PICTURE AUDIO...
  • Page 30 470uF/16V 470uF/16V C191 C191 C262 10uF C262 10uF C263 10uF C263 10uF 470uF/16V 470uF/16V C266 C266 470uF/16V 470uF/16V C265 C265...
  • Page 33 R213 R213 47pF 47pF C243 C243 0.1uF 0.1uF C558 C558...
  • Page 36 0R_DNS 0R_DNS 0R_DNS 0R_DNS 470pF 470pF C175 C175 470pF 470pF C129 C129 R236 R236 R244 R244 47nF 47nF C181 C181 47nF 47nF C176 C176 R237 R237 R245 R245...
  • Page 38 ESD-0402 ESD-0402 ESD-0402 ESD-0402 ESD-0402 ESD-0402 ESD-0402 ESD-0402 ESD-0402 ESD-0402 ESD-0402 ESD-0402...
  • Page 39 R349 R349 R350 R350 R348 R348 R290 R290 R289 R289 R291 R291 ESD_0402 ESD_0402 ESD_0402 ESD_0402 ESD_0402 ESD_0402 CCFL...
  • Page 40 ESD-0402 ESD-0402 ESD-0402 ESD-0402 ESD-0402 ESD-0402 ESD-0402 ESD-0402 ESD-0402 ESD-0402...
  • Page 42 BZV55-C5V1 BZV55-C5V1 BZV55-C5V1 BZV55-C5V1 BZV55-C5V1 BZV55-C5V1 BZV55-C5V1 BZV55-C5V1 0.1uF 0.1uF C747 C747 R1797 R1797 0.1uF 0.1uF C745 C745 R1801 R1801 R1805 R1805 R1807 R1807 VDD33 VDD33 1.5K 1.5K VDD33 PI3HDMI1210-A PI3HDMI1210-A VDD33 VDD33...
  • Page 43 R198 R198 NC/51K NC/51K R199 R199 NC/100K NC/100K R202 10K R202 10K R194 10K R194 10K SOP8-DI SOP8-CLK SOP8-WP/Vpp SOP8-HOLD SOP8-DO SOP8-VCC SOP8-CS...

  • Page 44: Wiring Connection Diagram

    7-2 .Wiring Connection Diagram NO.N Connection Wire(For Speaker) Connection Wire(Power For Mainboard) LVDS Wire Connection Wire(For SIDE AV INPUT) Connection Wire(Control for USB INPUT ) Connection Wire(For Keyboard) Connection Wire(For Remote) Connection Wire(Control for Backlight on/off) - 43 -...

  • Page 45: Tv Operation

    8. TV Operation - 44 -...
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  • Page 57: How To Enter Into The Factory Model

    8.1 How to enter into the factory model 1.You can voice menu mode, press "8-8-9-3" to enter the factory menu. Presse the key "MENU" to shut the factory setting. Content: 1: Software Upgrade 2:Auto Color 3:White Balance/Color Temp 4:Picture Mode 5:SSPLL Seting 6:Aging Mode 7:USB...

  • Page 58: How To Update Software

    8.2 How to update software Haier ZR93745 F/W upgrade with USB SOP Step 1: Ready for F/W Upgrade 1.1 Prepare a USB memory .  &RS\ WKH VRIWZDUH ¿OH PHUJH IURP \RXU FRPSXWHU WR WKH 86% PHPRU\ DQG UHPRYH LW from computer’s USB port!

  • Page 59: Trouble-Shooting

    9. Trouble shooting 9-1. Simple check - 58 -...

  • Page 60: Main Board Failure Check

    9-2. Main board failure check Service guide 1) Black creen Is power LCD normal? Check Q34 , Q35 and the Replace U1 2) White screen on VCC pins of J9 Check if Q39 is working Signal on J9 Check if J9 is - 59 -...
  • Page 61 3) Panel display abnormally connector J9 is at normal level - 60 -...
  • Page 62 4) No sound No sound Check the input Check if there is sound input source signal Check if the volume control is Reset at 0 level or muted volume Check the Check if there is output at speakers Check if the power supply Check if there is +12V input at system is damaged, short PIN28 of U20...
  • Page 63 5 TV failure TV no channel Fix the RF Check if there is RF signal input Check the power Check if there is supply circuit to +5V at PIN7 of this PIN7 Check if there is I2C signal at PIN6 & Check if there is PIN7 of U24 intermediate...
  • Page 64 6) HDMI no picture or picture abnormal If CN2 & CN3 is Q40,Q41 - 63 -...
  • Page 65 7) PC no picture or picture abnormal - 64 -...
  • Page 66 8) YPBPR, AV no picture or picture abnormal Check Y - 65 -...
  • Page 67 Failure Mode Part Name Description Phenomena Failure cause White Screen B/L normal, only white screen display M a y b e c a u s e d by surge current Black Screen B/L normal, and EDS only Black screen display FIIcker Crosstalk Vcom imbalance...
  • Page 68 Part Name Description Phenomena Failure cause I n c o m i n g I n s p e c t i o n Standard Bright dot dark dot in Dot Defect pannel Bladder between Polarizer and top glass Polarizer Bubble Bladder in Polarizer P a n e l o r Tine or rigidity arose...

  • Page 69: Panel Failure

    9-3. Pannel failure Failure Mode Part Name Description Phenomena Failure cause Block Defect :TCP cracking or cracking Dim or L/D :TCP Sunken V B/D Vertical bar :TCP lead cracking :ACF bonding short :Awful environment and something electric enter V Dim Vertal gray line into LCD :Mis-align between TCP and...
  • Page 70 Failure Mode Part Name Description Phenomena Failure cause Mechanlcal When Caused Nolse turn panel,appear b y M e c h a n i c a cacophony noise of backlight unit Ripple Connectric circle Causeed by between mechanism and pannel B/L off B/L lose action *Connect badness...
  • Page 71 Failure Mode Part Name Description Phenomena Failure cause Brightness B/L unit badness at bottom of LCM Light leakage brighter than normal B / L b r i g h t n e s s Sheet in B/L unit Mechanlcal or B/ asymmetric is uneven Uniformity...
  • Page 72 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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