Haier HL19KN2 Service Manual
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Haier HL19KN2 Service Manual

Haier HL19KN2 Service Manual

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See also: User 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.
TSUMV26KU
LCD TV
HL19KN2
Chassis

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Summary of Contents for Haier HL19KN2

  • 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

    Service Manual Model No.: 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 2. Specifications..................3. Location of Controls and Components........... 3-1.
  • Page 3 Service Manual Model No.: 9. Trouble-shooting………….............. 9-1. Simple Check 9-2. Main Board Failure Check 9-3. Panel Failure - 02 -...

  • Page 4: General Guidelines

    Service Manual Model No.: 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: Table Of Contents

    Service Manual Model No.: 1-3-6 Safety Check after Repairment Confi rm that the screws, parts and wiring which were removed in order to service are put in the original positions, or whether there are the positions which are deteriorated around the serviced places serviced or not.

  • Page 6: Ordering Spare Parts

    Service Manual Model No.: 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"...

  • Page 7: How To Read This Service Manual

    Service Manual Model No.: 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: Icons are used to attract the attention of the reader to specifi...

  • Page 8: Specifications

    Service Manual Model No.: 2. Specifications Model HL19KN2 Screen Size 19 inch Aspect Ratio 16:9 Resolution 1366x768 8 (GRAY TO Response Time (ms) GRAY) Angel of View 176 C Color Display 16777216 No. of Preset Channels 125 OSD Language English...

  • Page 9: Location Of Controls And Components

    Service Manual Model No.: 3. Location of Controls and Components 3-1 Board Location B Board A Board 3-2 Main Board - 08 -...

  • Page 10: Function Description

    Service Manual Model No.: 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 defi nition Main board connector Power connectors (J10, J2) Pin number Signal name Pin number Signal name high voltage POWER ON/OFF...
  • Page 11 Service Manual Model No.: remote connector (J6) Pin number Signal name Description LED_R LAMP RED LED_G LAMP GREEN REMOTE CONTROL POWER FOR REMOTE Keypad and connector (J7) Pin number Signal name Description KEY1 KEY0 - 10 -...

  • Page 12: Power Board

    Service Manual Model No.: Speaker connector J11 Pin number Signal name Description RSPK+ RSPK+ RSPK- RSPK- LSPK- LSPK- LSPK+ LSPK+ 　 　 3-3. Power Board 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　...

  • Page 13: Lcd Panel

    Service Manual Model No.: 3-4. LCD Panel V185B1-L06 - 12 -...
  • Page 14 Service Manual Model No.: 3-4-1 Function Description: Display the signal. 3-4-2 Connector defi nition. Pin No. Symbol Description Note No Connection No Connection No Connection Ground RX0- Negative transmission data of pixel 0 RX0+ Positive transmission data of pixel 0 Ground RX1- Negative transmission data of pixel 1...
  • Page 15 Service Manual Model No.: CN101 (Header):S14B-PH-SM4-TB (D)(LF)(JST) or equivalent. - 14 -...

  • Page 16: Disassemble And Assemble

    Service Manual Model No.: 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 fi gure above Lay down the unit so that rear cover faces upward Remove the four screw from the rear cover indicated with ○...

  • Page 17: Remove The Terminal Bracket

    Service Manual Model No.: 4-4 Remove the Terminal Bracket Remove the two screw indicated on the fi gure above by ○ Remove the fi ve screw indicated on the Disconnected the coupler CON4 fi gure above by ○ CN16 CN17 CN6 CN5 CN4 CN8 CN2 CN3 Remove the Main board Then put the terminal bracket to the side...

  • Page 18: Remove The Speaker

    Service Manual Model No.: 4-7 Remove the speaker Take out the speaker 4-8 Remove the remote control Remove the screw, take out the remote control board - 17 -...

  • Page 19: Installation Instructions

    Service Manual Model No.: 5. Installation Instructions 5-1 External Equipment Connections Accessories POWER MUTE MTS/SAP RECALL MENU SOURCE ENTER EXIT TV DISPLAY AUTO ASPECT SLEEP V-CHIP DVD/USB GOTO MENU SETUP RETURN DISPLAY AUDIO SUBTITLE Battery User GUIDE Remote Control Antenna Connection Connect one end of a coaxial cable (not included) to the ANT IN jack on the back of your TV/DVD combo, then connect the other end of the cable into the antenna or cable TV wall outlet.
  • Page 20 Service Manual Model No.: This TV provides one AV, and one YPbPr (component) input for convenient connection to VCR,DVD or other video equipment. Please refer to the owner s manual of the equipment to be connected as well. It can be connected to the following devices: VCR, multi disc player, DVD, camcorder, video game or stereo system, etc..
  • Page 21 Service Manual Model No.: - 20 -...

  • Page 22: Hdmi Connections

    Service Manual Model No.: 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.
  • Page 23 Service Manual Model No.: 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) - 22 -...
  • Page 24 Service Manual Model No.: 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: ■ Never connect the AC line cord plug to other than the specifi ed voltage. Use the attached power cord only.

  • Page 25: Operation Instructions

    Service Manual Model No.: 6. Operation Instructions Basal information 6-1 Front panel controls SOURCE MENU VOL+ VOL- POWER/STANDBY 1 SOURCE Display the input source menu. 2 MENU D isplay the main MENU. 3 CH+/CH- In TV mode press CH+ or CH- to change the channel up and down.

  • Page 26: Universal Remote Control

    Service Manual Model No.: 6-3 Setting Up Your Remote Control 1: POWER REMOTE CONTROL TV on/off 2: NUMBER KEY: For direct access to program. For a 2 (3) digit program number, The second (third) digit must be entered before the dash disappears. POWER MUTE The number, the name (and the sound...

  • Page 27: Electrical Parts

    Service Manual Model No.: 7. Electrical parts 7-1. Block diagram LDO&DC-DC LED PANEL BLACKLIGHT POWER EEPROM F4558 TPA1517P FLASH TSUMV26KU VIDEO SAW REMOTE SOUND SAW CONTROL KEY TUNER EARHPONE INPUT OUTPUT - 26 -...

  • Page 28: Circuit Diagram

    Service Manual Model No.: 7-2. Circuit Diagram - 27 -...
  • Page 29 Service Manual Model No.: - 28 -...
  • Page 30 Service Manual Model No.: - 29 -...
  • Page 31 Service Manual Model No.: - 30 -...
  • Page 32 Service Manual Model No.: - 31 -...
  • Page 33 Service Manual Model No.: - 32 -...
  • Page 34 Service Manual Model No.: NC/0R NC/0R NC/0R NC/0R NC/220nF NC/220nF NC/220nF NC/220nF - 33 -...
  • Page 35 Service Manual Model No.: - 34 -...
  • Page 36 Service Manual Model No.: - 35 -...

  • Page 37: Wiring Connection Diagram

    Service Manual Model No.: 7-3 .Wiring Connection Diagram Name Connection Wire(For Speaker) Connection Wire(Power For Mainboard) LVDS Wire Connection Wire(For Keyboard) Connection Wire(For Remote) - 36 -...

  • Page 38: Measurements And Adjustments

    Service Manual Model No.: 1. PICTURE MENU 3.OSD MENU The first item of the MENU is the picture menu. The third item of the MENU is the OSD Menu. You can adjust picture settings here, such as Press to select, press to adjust.

  • Page 39: Channel Menu

    Service Manual Model No.: 5.CHANNEL MENU In PC mode, there are two special menu 1. PICTURE MENU The fifth item of the MENU is the channel menu You can adjust the PC picture, settings, such as (Only in TV mode).You can complete the channel contrast, brightness, etc scan and set TV channel settings here.

  • Page 40: Trouble Shooting

    Service Manual Model No.: 9. Trouble shooting 9-1. Simple check - 39 -...

  • Page 41: Main Board Failure Check

    Service Manual Model No.: 9-2. Main board failure check State: No Sound No Sound (All Mode) fail Check the input Change Source input Source pass fail Check Re-soldering or change input/output IC U16 IC U13 pass fail Check Re-soldering or change input/output IC U15 IC U55...
  • Page 42 Service Manual Model No.: 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...
  • Page 43 Service Manual Model No.: 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...
  • Page 44 Service Manual Model No.: 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...
  • Page 45 Service Manual Model No.: 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...
  • Page 46 Service Manual Model No.: 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...
  • Page 47 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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