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Order No.

LCD TV

Model No.

Chassis

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.

Haier Group

©2010 Qingdao Haier Electronics Co., Ltd.
All rights reserved. Unauthorized copying and distribution is a violation of law.

SERVICE MANUAL

WARNING

TV1001S019V0

MTK5305

HL24XK2

Service No. HL24XK2a

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Содержание HL24XK2

Страница 1: ...ervice 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 Haier Group 2010 Qingdao Haier Electronics Co Ltd All rights reserved Unauthorized copying and distribution is a violation o...

Страница 2: ...g Spare Parts 6 1 3 8 Photo used in this manual 6 1 4 How to Read this Service Manual 6 1 4 1 Using icons 6 KDSWHU 6SHFL FDWLRn 6SHFL FDWLRQ OLVW 8 2 2 External pictures four faces 9 Chapter 3 Disassemble and Assemble 11 11 11 12 12 12 Chapter 4 Location of Controls and Components 4 1 Board Location 13 4 2 Main Board 13 4 2 1 Function Description 14 RQQHFWRU GH QLWLRQ 14 3 1 Remove the Pedestal 3 ...

Страница 3: ...m 25 7 3 Circuit Diagram 27 7 2 Wiring Connection Diagram Chapter 8 Measurements and Adjustments 8 1 Service Mode 40 8 1 1 How to enter into Service Mode 40 8 1 2 How to exit 40 8 2 Measurements and Adjustments 40 8 2 1 Version S N Panel Resoution 40 8 2 2 Video 41 8 2 3 Audio 42 8 2 4 Channel 42 8 2 5 Gamma 44 8 2 6 Backlight 44 8 2 7 Function 45 Chapter 9 Trouble shooting 9 1 Simple check 47 9 2...

Страница 4: ...tant thing is to list up the potential hazard or risk for the service personnel to open the units and disassemble the units For example we need to describe properly how to avoid the possibility to get electrical shock from the live power supply or charged electrical parts even the power is off This symbol indicates that high voltage is present inside It is dangerous to make any king of contact wit...

Страница 5: ...nder test IWHU UHPRYLQJ DQ HOHFWULFDO DVVHPEO HTXLSSHG ZLWK 6 GHYLFHV SODFH WKH DVVHPEO RQ D conductive surface such as aluminum foil to prevent electrostatic charge buildup or exposure of the assembly 1 3 4 About lead free solder PbF This product is manufactured using lead free solder as a part of a movement within the consumer products industry at large to be environmentally responsible Lead fre...

Страница 6: ...lcohol 90 99 strength CAUTION 7KLV LV D ÀDPPDEOH PL WXUH 8QOHVV VSHFL HG RWKHUZLVH LQ WKLV VHUYLFH PDQXDO OXEULFDWLRQ RI FRQWDFWV LV QRW UHTXLUHG Capacitors may result in an explosion hazard 5 Do not defeat any plug socket B voltage interlocks with which receivers covered by this VHUYLFH PDQXDO PLJKW EH HTXLSSHG 6 Do not apply AC power to this instrument and or any of its electrical assemblies unl...

Страница 7: ...Minimize bodily motions when handling unpackaged replacement ES devices Otherwise harmless motion such as the brushing together of your clothes fabric or the lifting of your foot IURP D FDUSHWHG ÀRRU FDQ JHQHUDWH VWDWLF HOHFWULFLW VXI FLHQW WR GDPDJH DQ 6 GHYLFH 1 3 7 Ordering Spare Parts Please include the following informations when you order parts Particularly the Version letter 1 Model number ...

Страница 8: ...SXODWLRQ PD GDPDJH HTXLSPHQW ORRVH GDWD JHW DQ XQH SHFWHG UHVXOW RU KDV WR restart part of a procedure Warning A warning is used when there is danger of personal injury Reference A reference guides the reader to other places in this binder or in this manual where KH VKH ZLOO QG DGGLWLRQDO LQIRUPDWLRQ RQ D VSHFL F WRSLF ...

Страница 9: ...t Channels 181 OSD Language English French Spanish Color System NTSC Audio System M BG I L L Audio Output Power Built in W 3W 2 Audio Output Power outer W No Total Power Input W 50W Voltage Range V AC100V 240V 3RZHU UHTXHQF 60Hz Time of Sleep Timer MINS 120Min Net Weight KG 5 3 Gross Weight KG 6 5 Net Dimension MM 585 6x190x434 4 Packaged Dimension MM 600x195x450 KDSWHU 6SHFL FDWLRQ 6SHFL FDWLRQ O...

Страница 10: ...Service Manual Model No HL24XK2 9 2 2 External pictures four faces Front Side Left Side ...

Страница 11: ...Service Manual Model No HL24XK2 10 Right Side Back Side ...

Страница 12: ... 4Remove the Main Board Remover the four screw indicated with Then remove the Main Board Remover the two screw indicated with Then remove the Speaker 1 5Remove the Power Board Remover the four screw indicated with Then remove the Power Board 1 Remove the Pedestal Remover the seven screw indicated with Then remove the back cover from the unit Service Manual Model No HL24XK2 ...

Страница 13: ...ew indicated with Then remove the Keypad Assembly 1 Remove the Remote Control Board 7 Remover the one screw indicated with Then remove the Remote Control Board 1 Remove the Keypad Assembly 6 Service Manual Model No HL24XK2 ...

Страница 14: ...Chapter 4 Location of Controls and Components 4 1 Board Location No Parts number Description Board Main Board 0090724296 4 2 Main Board Service Manual Model No HL24XK2 13 DC1AJ0E0100M Main Board ...

Страница 15: ...turn off the backlight of TFT LCD Panel through the power supply unit path System board will use this pin to control system power CN1 Pin 4 Control the luminance of backlight The system can generate the PWN signal to control the strength of TFT LCD Panel s backlight through this connector CN2 CN3 Pin number Signal name Pin number Signal name 1 SB5V 1 GND 2 IR 2 AD1 3 LED_R 3 AD2 4 LED_G 5 GND Keyp...

Страница 16: ...VDS EVEN 2 Signal 12 LVDS_D2E_P LVDS EVEN 2 Signal 13 GND Ground 14 LVDS_CE_N LVDS EVEN Clock Signal 15 LVDS_CE_P LVDS EVEN Clock Signal 16 GND Ground 17 LVDS_D3E_N LVDS EVEN 3 Signal 18 LVDS_D3E_P LVDS EVEN 3 Signal 19 GND Ground 20 NC NC 21 NC NC 22 NC NC 23 GND Ground 24 GND Ground 25 GND Ground 26 Panel_power Power for panel 27 Panel_power Power for panel 28 Panel_power Power for panel 29 Pane...

Страница 17: ...NECTOR CNC1 Service Manual Model No HL24XK2 16 Power supply and Inverter Connector CNC1 Pin number Signal name Description 1 1 Ground 1 Ground 867 19 57 5 LJKWQHVV GMXVW 21 2 19 57 5 6ZLWFK RQWURO 9 9 Power 9 9 Power Other Connector Power supply for panel CNC2 Power supply for panel CNC3 4 4 LCD Panel ...

Страница 18: ...Service Manual Model No HL24XK2 17 Panle LVDS Connector CNC4 ...

Страница 19: ...l Wire 75 ohm Single family Dwellings Houses Connect to wall jack for outdoor antenna Outdoor Antenna To improve the picture quality in a poor signal area please purchase a signal amplifier and install properly If the antenna needs to be split for two TV s install a 2 Way Signal Splitter in the connections To install the antenna properly please contact a professional in your area Note All cables s...

Страница 20: ...nding external equipment B Refer to external equipment operating guide Component Setup How to connect Connect the DVD video outputs COMPONENT to A the Y Pb Pr jacks on the TV and connect the DVD audio outputs to the YPbPr Audio IN jacks on the TV as shown in the figure If your DVD only has an S VIDEO output jack connect B this to the S VIDEO input on the TV as shown in the figure Note If your DVD ...

Страница 21: ...ovider you can watch cable TV programming The TV cannot display TV programming unless a TV tuner device or cable TV converter box is connected to the TV For further information regarding cable TV service contact your local cable TV service provider s Connection Option 1 Select 3 or 4 with channel switch on cable box A Tune the TV channel to the same selected output B channel on cable box Select ch...

Страница 22: ... product 2 A separated audio connection is necessary 3 If the source device has an analog audio output connector connect the source device audio output to DVI Audio In port located on the left side of HDMI port How To Use If the source device supports Auto DVI function the output resolution of the source device will be automatically set to 1280x720p If the source device does not support Auto DVI y...

Страница 23: ...eadphone out S VIDEO 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 Ƶ Never connect the AC line cord plug to other than the specified voltage Use the attached power cord only Ƶ If the polarized AC cord does not fit into a non polarized AC outlet do not attempt to file or cut the blade...

Страница 24: ...N L AUDIO R L R L AUDIO R HDMI IN ANT IN DIGITAL OUT COAXIAL 1 DC IN Direct current input 2 Headphone jack Headphone audio output terminal 3 USB input Connect a USB flash drive to view JPEG images or listen to MP3 songs 4 Digital Out Connect various types of digital audio equipment 5 HDMI In Connect a HDMI device to receive digital audio and uncompressed digital video 6 VIDEO In Connect the video ...

Страница 25: ... For example to enter 54 3 QSFTT i w it w BOE i w J MUTE Switches the sound on or off K ENTER Accesses the highlighted item in the on screen menu L RECALL Press to jump back and forth between two channels M USB REPEAT N USB STOP O USB Next Chapter P USB Previous Chapter Q CH LIST Open the channel list inTV R FAVORITE Open the favourite channel list inTV For TV without DVD PICTURE CCD INPUT ARC MEN...

Страница 26: ...r 7 Electrical Parts 7 1 Block Diagram 25 HDMI1 VGA YPbPr tuner Composite MT5305 Main IC YPbPr Composite L R VGA P11 L R DDR Flash TDA1517 P A N E L USB LVDS EEPROM I2C Bus Service Manual Model No HL24XK2 DDR ...

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Страница 28: ...Service Manual Model No HL24XK2 7 3 Wiring Connection Diagram 27 ...

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Страница 41: ... will be into the factory mode menu when 3 steps above are done 8 1 2 How to exit If you want to exit this factory menu please press the button Exit on the remote 8 2 Measurements and Adjustments 8 2 1 Version S N Panel Resoution Version info The first item is the Model Name and the second one is current software version See picture on the next page Service Manual Model No HL24XK2 40 ...

Страница 42: ...he 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 Color Temperature The function could adjust the Color Temperature used when debugging 41 Service Manual Model No HL24XK2 ...

Страница 43: ...AV S Video YPbPr VGA Compression Factor Compression state Downmix output model MTS System used when debugging The parameters only used when GHEXJJLQJ QR QHHG WR EH PRGL HG 8 2 4 Channel Range Scan The function could make it to search the channels by differentiation the analog and digital channels Service Manual Model No HL24XK2 42 ...

Страница 44: ...LQ DGYDQFH Factory Scan According to ANTENNA ANALOG ANTENNA DIGITAL CABLE ANALOG CABLE DIGITAL to search channels used only in project debugging Tuner Diagnostic Project debugging setting used to inspect the audio function 43 Service Manual Model No HL24XK2 ...

Страница 45: ...8 2 5 Gamma Gamma Bright GAMMA0 8 Middle default settings in the program Dark GAMMA1 2 8 2 6 Backlight Backlight adjust the backlight Service Manual Model No HL24XK2 44 ...

Страница 46: ...s is for factory run in testing The screen would display red green blue and black screen repeatedly Each color screen could be exam at that time Clean Storage The function could make the model turn back to the factory default setting 45 Service Manual Model No HL24XK2 ...

Страница 47: ...Remark The date of the chart only is an example please don t adjust the factory mode base on it Service Manual Model No HL24XK2 46 ...

Страница 48: ...rify if correct channel is selected Adjust the antenna Make adjustments by Fine Tune and MANUAL Scan No color for some channel program black and white Verify if the same problem exists in other channels check out of picture and sound system Refer to relative instructions in the Manual for color adjust Spots with some or all pictures Verify if the antennal is correctly connected Verify if the anten...

Страница 49: ...9 2 Power Supply Board Failure Check Service Manual Model No HL24XK2 48 ...

Страница 50: ...ut Check the input output Re soldering or change IC U13 Check the input output Re soldering or change IC U55 Check the input output Re soldering or change IC U2 Check the Speaker Change the Speaker Check the Sperker wire Fail Pass Fail Fail Fail Fail Pass Pass Pass Pass 49 Service Manual Model No HL24XK2 ...

Страница 51: ... Sunken TCP lead cracking ACF bonding short Awful environment and something electric enter into LCD Mis align between TCP and Panel Panel failure TCP failure V Dim Vertal gray line V L D Vertical color line light or dark forever H B D Horizontal bar H Dim Horizontal gary line H L D Horizontal line light or dark forever Service Manual Model No HL24XK2 50 ...

Страница 52: ...er Bladder between Polarizer and top glass Polarizer Scratch Polarizer Scratch Tine or rigidity arose F inside Polarizer Eyewinker inside Polarizer Eyewinker inside Polarizer Circuit Abnormal Display Abnormal Display 1 Chip lose action 2 IC ahort or jointiog bad 3 Pannel and vsc connect bad Flashing Bright and dark display alternately 51 Service Manual Model No HL24XK2 ...

Страница 53: ...ent and EDS Black Screen B L normal only Black screen display FIIcker Crosstalk LCD Vcom imbalance Abnormal Color Only color abormal Capacitance improper bring crosstalk inside LCD pannel Abnormal Color Only color abnormal 1 Chip lose action 2 IC short or jointion bad 3 Pannel and vsc connect bad Service Manual Model No HL24XK2 52 ...

Страница 54: ...wire and electrode B L dark B L brightness darker than normal Connect badnessShort between wire and electrode B L wire damaged B L wire damaged Operation abnormal or systemic noise B L wire open Without backlight Operation abnormal or systemic noise B L shut down B L shutdown in sometime Short bitween lamp housing and wire Because consume power too much F M F M inB L white balck Rotundity or wirel...

Страница 55: ...lcal or B L Light leakage Brightness at bottom of LCM brighter than normal B L unit badness Uniformity B L brightness asymmetric Sheet in B L unit is uneven Mount hole Lack screw or screw damage Lack screw Screw damage Service Manual Model No HL24XK2 54 ...

Страница 56: ...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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