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Haier HL19KN2, Service Manual

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Haier HL19KN2 Service Manual Download Page 46

Failure Mode

Part

Name

Description

Phenomena

Failure cause

Mechanlcal 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.: 

- 45 - 

Summary of Contents for HL19KN2

Page 1: ...uals 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 2009 Qingdao Haier Electronics Co Ltd All rights reserved Unauthoriz...

Page 2: ...stal 7 8 8 8 8 11 12 15 15 4 2 Remove the Back Cover 15 4 3 Remove the Adhesive Tape 15 4 4 Remove the Terminal Bracket 16 4 5 Remove the Power Module 16 4 6 Remove the Main Board 16 4 7 Remove the Speaker 17 4 8 Remove the Remote Control Board 17 5 Installation Instructions 18 5 1 External Equipment Connections 18 5 2 HDMI Connections 21 6 Operation Instructions 24 6 1 Front Panel Controls 6 2 Ba...

Page 3: ...Service Manual Model No 02 9 Trouble shooting 39 9 1 Simple Check 39 9 2 Main Board Failure Check 9 3 Panel Failure 40 41 ...

Page 4: ...ctions in the literture accompanying the appliance 1 3 2 Be careful to the electrical shock To prevent damage which might result in electric shock or fire do not expose this TV set to rain or excessive moisture This TV must not be exposed to dripping or splashing water and objects filled with liquid such as vases must not be placed on top of or above the TV 1 3 3 Electro static discharge ESD Some ...

Page 5: ...eiver only the test fixtures specified in this service manual CAUTION Do not connect the test fixture ground strap to any heat sink in this receiver 3 Do not spray chemicals on or near this receiver or any of its assemblies 4 Unless specified otherwise in this service manual clean electrical contacts only by applying the following mixture to the contacts with a pipe cleaner cotton tipped stick or ...

Page 6: ...atic 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 4 Use only an anti static type solder removal device Some ...

Page 7: ...bed in the table below Note A note provides information that is not indispensable but may nevertheless be valuable to the reader such as tips and tricks Caution A caution is used when there is danger that the reader through incorrect manipulation may damage equipment loose data get an unexpected result or has to restart part of a procedure Warning A warning is used when there is danger of personal...

Page 8: ...iew 176 C Color Display 16777216 No of Preset Channels 125 OSD Language English Color System NTSC Audio System M N Audio Output Power Built in W 1 5W 2 Audio Output Power outer W No Total Power Input W 30W Voltage Range V AC100V 240V Power Frequency Hz 50 60Hz Net Weight KG 4 Gross Weight KG 4 8 Net Dimension MM 460x140x346 Packaged Dimension MM 541x171x408 ...

Page 9: ... 08 Service Manual Model No 3 Location of Controls and Components 3 1 Board Location 3 2 Main Board A Board B Board ...

Page 10: ...GND 2 BL 2 GND 3 DIM 3 5V 4 high voltage 4 5V 5 GND 5 POWER ON OFF 6 5VSTB 7 5V 8 5V 9 GND 10 GND 11 GND 12 12V 13 12V Notes J10 Pin 2 Backlight on off The system can turn on or turn off the backlight of TFT LCD Panel through the power supply unit path J2 Pin 5 System power on standby System board will use this pin to control system power J10 Pin 3 Control the luminance of backlight The system can...

Page 11: ...No Pin number Signal name Description 1 LED_R LAMP RED 2 LED_G LAMP GREEN 3 4 IR REMOTE CONTROL 5 GND GND 6 5V POWER FOR REMOTE Pin number Signal name Description 1 KEY1 2 KEY0 3 GND remote connector J6 Keypad and connector J7 ...

Page 12: ...el 3 3 2Connectordefinition Service Manual Model No 11 Speaker connector J11 Pin number Signal name Description 1 RSPK RSPK 2 RSPK RSPK 3 LSPK LSPK 4 LSPK LSPK CON3 Pin number Signal name 1 ＰOWER ON OFF 2 12V 3 12V 4 GND 5 GND 6 5V 7 5VSTB 8 5V 9 GND 10 GND 11 PB 12 BR 13 NC ...

Page 13: ...3 4 LCD Panel 12 Service Manual Model No V185B1 L06 ...

Page 14: ...ission data of pixel 2 13 GND Ground 14 RXCLK Negative of clock 15 RXCLK Positive of clock 16 GND Ground 17 RX3 Negative transmission data of pixel 3 18 RX3 Positive transmission data of pixel 3 19 GND Ground 20 NC No Connection 2 21 SELLVDS Select LVDS data format 3 22 NC No Connection 2 23 GND Ground 24 GND Ground 25 GND Ground 26 VCC Power supply 5V 27 VCC Power supply 5V 28 VCC Power supply 5V...

Page 15: ...CN101 Header S14B PH SM4 TB D LF JST or equivalent 14 Service Manual Model No ...

Page 16: ...move the adhesive tape indicated on the figure above Lay down the unit so that rear cover faces upward Remove the four screw from the rear cover indicated with Then remove the pedestal 4 2Remove the Back Cover Remove the these screw indicated on figure above by Then remove the back cover from the unit Service Manual Model No 15 ...

Page 17: ...t to the side 4 5 Remove the power module Remove the six screw indicated on the figure above by Then remove the power module 4 6 Remove the Main board Remove the two screw indicated on the figure above by Disconnected the coupler CON4 CN16 CN17 CN6 CN5 CN4 CN8 CN2 CN3 Remove the Main board Service Manual Model No 16 ...

Page 18: ...4 7 Remove the speaker Take out the speaker 4 8 Remove the remote control Remove the screw take out the remote control board Service Manual Model No 17 ...

Page 19: ...ther end of the cable into the antenna or cable TV wall outlet To improve picture quality from an antenna in a poor signal area install a signal amplifier If you need to split the antenna signal to connect two TVs install a two way splitter Service Manual Model No 18 1 ENTER RETURN DISPLAY 2 3 4 5 6 7 8 9 0 CH _ _ VOL SUBTITLE AUDIO SLEEP V CHIP CC AUTO S M EXIT P M TV DISPLAY SOURCE MENU MTS SAP ...

Page 20: ...deo 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 YPbPr can support these video formats 480i 576i 480p 576p 720p 1080i 1080p Service Manual Model No 19 ...

Page 21: ...Service Manual Model No 20 ...

Page 22: ... menu When the source device DVD player or Set Top Box supports DVI How To Connect 1 Connect the source device to HDMI port of this TV with a HDMI to DVI cable not supplied with this 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 PC port How To Use If the sour...

Page 23: ...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 Service Manual Model No 22 ...

Page 24: ... the attached power cord only If the polarized AC cord does not fit into a non polarized AC outlet do not attempt to file or cut the blade It is the user s responsibility to have an electrician replace the obsolete outlet If you cause a static discharge when touching the unit and the unit fails to function simply unplug the unit from the AC outlet and plug it back in The unit should return to norm...

Page 25: ...VOL to adjust the item that you selected 5 Press this button to turn the unit ON from STANDBY mode Press it again to turn the set back to STANDBY mode POWER STANDBY SOURCE MENU CH CH VOL VOL POWER STANDBY All the terminals are from left to right AC POWER ANTENNA SOCKET PC AUDIO input Audio input YPbPr component input AV input VGA HDMI input Note 1 AV and YPbPr share the Audio input jacks 2 When th...

Page 26: ...Set the V chip level 11 MUTE To disable or enablethe sound 12 MTS SAP Switch the sound stereo SAP or mono 13 RECALL To access the previouslyviewed program 14 SOURCE Change the inputsource 15 ENTER Confirms selection 16 TV DISPLAY Displays hides the program information 17 S M To switch the soundmode 18 CH CH To access the nextor previous Program 19 ASPECT To change the pictureaspect ratio 20 CC Swi...

Page 27: ... Block diagram Service Manual Model No 26 TUNER TPA1517P HDMI VGA YPbPr AV VIDEO SAW SOUND SAW CONTROL KEY REMOTE LED PANEL TSUMV26KU FLASH 12V 5V 5VSB POWER F4558 BLACKLIGHT EEPROM INPUT EARHPONE OUTPUT LDO DC DC 3 3V 1 26V ...

Page 28: ... C5 2 2uF C5 2 2uF C10 0 1uF C10 0 1uF FB4 NC FB4 NC C28 0 1uF C28 0 1uF L2 FB42R 4A L2 FB42R 4A FB1 FB42R 4A FB1 FB42R 4A H1 NC H1 NC EC17 220uF 16V EC17 220uF 16V 1 2 EC3 220uF 16V EC3 220uF 16V 1 2 R2 1K R2 1K C19 0 1uF C19 0 1uF C25 10uF C25 10uF C35 0 1uF C35 0 1uF FB6 FB42R 4A FB6 FB42R 4A C15 0 1uF C15 0 1uF C36 0 1uF C36 0 1uF Q2 3904 Q2 3904 1 2 3 C29 0 1uF C29 0 1uF L1 FB120R 200mA L1 FB...

Page 29: ... E6 NC E6 NC R17 10K R17 10K R23 5R1 R23 5R1 R20 100R R20 100R Q3 NC 2N7002 Q3 NC 2N7002 R30 NC 10K R30 NC 10K R28 5R1 R28 5R1 CN1 HDMI CN1 HDMI DAT2 3 DAT2 1 Dat1 shield 5 DDC SCL 15 DDC SDA 16 DAT1 6 DAT1 4 Dat2 shield 2 5V 18 CEC DDC GND 17 HPD 19 DAT0 9 DAT0 7 Dat0 shield 8 clk shield 11 clk 10 clk 12 CEC 13 GND 20 GND 21 GND 22 GND 23 Q4 3904 Q4 3904 1 3 2 R21 100R R21 100R R34 NC R34 NC R35 ...

Page 30: ... NC R47 75R R47 75R CN2 PC_AUDIO_IN CN2 PC_AUDIO_IN 1 2 3 4 5 CN3 VGA CN3 VGA 5 10 4 9 3 8 2 7 1 15 14 13 12 11 6 16 17 R46 75R R46 75R R41 47R R41 47R E14 NC E14 NC R53 4 7K R53 4 7K R54 4 7K R54 4 7K C42 47nF C42 47nF R38 47K R38 47K E17 NC E17 NC R37 47K R37 47K R39 12K R39 12K C43 47nF C43 47nF C41 2 2uF C41 2 2uF R40 12K R40 12K E15 NC E15 NC R44 0R R44 0R E21 V800AA E21 V800AA R43 47R R43 47...

Page 31: ...E36 NC C55 2 2uF C55 2 2uF C165 2 2uF C165 2 2uF E39 NC E39 NC Q9 3906 Q9 3906 1 3 2 R248 100K R248 100K Q6 3904 Q6 3904 1 2 3 Q10 3904 Q10 3904 1 2 3 R100 100R R100 100R R115 75R R115 75R U7 PI5V330 U7 PI5V330 S1A 2 S1B 5 S1C 11 S1D 14 S2A 3 S2B 6 S2C 10 S2D 13 IN 1 DA 4 DB 7 DC 9 DD 12 VCC 16 GND 8 EN 15 Q5 3904 Q5 3904 1 2 3 R10 NC 33R R10 NC 33R R98 12K R98 12K J3 7pin 2 0mm J3 7pin 2 0mm 1 2 ...

Page 32: ... 7 SDA 5 NC 8 AS 3 IFOUT 11 SCL 4 33V 9 AGC 1 NC 6 GND 15 GND 12 GND 14 GND 13 EC5 NC 47uF 16V EC5 NC 47uF 16V C78 NC C78 NC R155 0R R155 0R C72 0R NC C72 0R NC FB5 NC FB56R 1A FB5 NC FB56R 1A C71 NC 15nF C71 NC 15nF D5 1N4148 D5 1N4148 C70 NC 10uF C70 NC 10uF R154 510R R154 510R AFT7W103G TUNER2 NC AFT7W103G AFT7W103G TUNER2 NC AFT7W103G NC 2 NC 10 5VB 7 SDA 5 NC 8 AS 3 IFOUT 11 SCL 4 NC 9 AGC 1 ...

Page 33: ... LVA2M 95 LVA1P 98 LVA1M 97 LVA0P 100 LVA0M 99 INT 105 LVB3P 81 LVB3M 80 LVBCKP 83 LVBCKM 82 LVB2P 85 LVB2M 84 LVB1P 87 LVB1M 86 LVB0P 89 LVB0M 88 VDDP 57 RDZ 66 HWRESET 113 XOUT 24 XIN 25 AVDD_MPLL 23 VIFP 30 RXA2P 128 RXA2N 127 PWM2 60 GIN0 11 SOGIN0 12 CVBSOUT 21 AVDD_AU 38 VIFM 31 AUVRM 46 AUVRP 47 AUVREF 48 LINE_IN_2L 39 LINE_IN_2R 40 LINE_IN_3L 41 LINE_IN_3R 42 LINE_OUT_0L 52 LINE_OUT_0R 53 ...

Page 34: ... 23 AVSS1 24 AVDD 25 EN 26 NC 27 HVSSL 30 HVSSL 31 OUTPL 32 HVDDL 33 OUTPL 34 HVDDL 35 HVDDL 36 OUTNL 37 HVDDL 38 OUTNL 39 HVSSL 40 FBNL 28 FBPL 29 thermal 41 C152 0 1uF C152 0 1uF J11 SPEAKER J11 SPEAKER 4 3 2 1 C126 470pF C126 470pF R251 NC 2K R251 NC 2K R234 NC R234 NC Q20 3906 Q20 3906 1 3 2 R245 NC R245 NC C147 0 47uF C147 0 47uF D13 0R_1206 D13 0R_1206 C134 NC 2 2uF C134 NC 2 2uF R261 10K R2...

Page 35: ... SVA 19 R296 NC R296 NC Q33 3904 Q33 3904 1 2 3 R293 4 7K R293 4 7K C163 0 1uF C163 0 1uF C161 NC C161 NC R282 0R R282 0R C159 NC C159 NC C155 0 1uF C155 0 1uF Q31 3904 Q31 3904 1 2 3 R290 4 7K R290 4 7K R297 NC 100R R297 NC 100R C158 0 1uF C158 0 1uF R281 NC R281 NC R287 4 7K R287 4 7K R295 4 7K R295 4 7K R288 4 7K R288 4 7K Q34 3904 Q34 3904 1 2 3 R294 22K R294 22K R292 10K R292 10K R286 100K R2...

Page 36: ...R310 100K R310 100K R314 100K R314 100K R312 100K R312 100K R304 100K R304 100K R306 100K R306 100K R307 100K R307 100K R309 100K R309 100K R189 75R R189 75R R202 NC 33R R202 NC 33R R188 75R R188 75R E48 NC E48 NC C129 0 1uF C129 0 1uF C133 2 2uF C133 2 2uF C167 2 2uF C167 2 2uF R313 100K R313 100K R311 100K R311 100K Q35 3904 Q35 3904 1 2 3 R315 100K R315 100K R305 100K R305 100K R308 100K R308 1...

Page 37: ...e Manual Model No 36 7 3 Wiring Connection Diagram NO Name 1 2 3 4 5 Connection Wire For Keyboard Connection Wire For Speaker Connection Wire For Remote LVDS Wire Connection Wire Power For Mainboard 1 2 4 5 3 ...

Page 38: ...ystemonly Three color temperatures NORMAL WARM COOL 2 AUDIO MENU The second itemof the MENUis the audiomenu Youcan adjust thesound settings here Press to move press toadjust 4 FUNCTION MENU The fourth itemof the MENUis the function menu Youcan adjust thefollowing settings 1 SLEEP TIMER adjust thesleep time 2 DLC Dynamic luminance control Set the option to ON which can enhancethe contrast and brigh...

Page 39: ...ENU EXIT H POSITION V POSITION CLOCK PHASE AUTO ADJUST 100 100 100 0 AUTO SCAN ADD ERASE SOURCE C CAPTION PARENT CTRL CHANNEL ADD CATV STD OFF SELECT ADJUST MENU EXIT 5 CHANNEL MENU The fifth itemof the MENUis the channelmenu Only in TVmode Youcan complete thechannel scan and setTV channel settings here 1 AUTO SCAN Searchall the channels automatically 2 ADD ERASE Display orskip a channel 3 SOURCE ...

Page 40: ...9 Trouble shooting 9 1 Simple check Service Manual Model No 39 ...

Page 41: ...Change Source input 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 fail fail fail fail pass pass pass pass pass IC U16 IC U12 IC U15 40 ...

Page 42: ...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 H o r i z o n t a l line light or dark forever Service Manual Model No 41 ...

Page 43: ...er Bubble Bladder in Polarizer Bladder between Polarizer and top glass Polarizer Scratch Polarizer Scratch Tine or rigidity arose F M i n s i d e 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 B r i g h t a n d d a r k display alternately 42 ...

Page 44: ...ge current 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 I C s h o r t o r jointion bad 3 Pannel and vsc connect bad Service Manual Model No 43 ...

Page 45: ...ose action Connect badness between 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 i...

Page 46: ...ause Mechanlcal 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 45 ...

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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