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Haier LE50K6000SF, Service Manual

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Haier LE50K6000SF Service Manual Download Page 35

Trouble 

S

hootin

g

™

Powerboardnotwork

™

1.Verifyifthepowercordconnectwell?

™

Verifythepo5Vstandbyis
working.

™

3.CheckifvoltageofthePOWERON/OFF
ofthepowerboardpartisonthehigh
levelvoltage

™

4.+12V/+5V output;checkifthereis
+12V/+5Voutputonthepowerboard

™

CheckifMainboard/LVDSwire/Panel
areingoodcondition?

- 34 -

Summary of Contents for LE50K6000SF

Page 1: ...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 An...

Page 2: ...nd Assemble 4 1 Remove the Stand Base 6 7 7 7 11 11 4 2 Remove the Back Cover 11 4 3 Remove the Adhesive Tape 11 4 4 Remove the Main Board 12 4 5 Remove the Speaker 12 4 6 Remove the Remote Control Bo...

Page 3: ...instructions in the literture accompanying the appliance 1 3 2 Be careful to the electrical shock 7R SUHYHQW GDPDJH ZKLFK PLJKW UHVXOW LQ HOHFWULF VKRFN RU UH GR QRW H SRVH WKLV 79 VHW to rain or exce...

Page 4: ...UHFHLYHU RQO WKH WHVW WXUHV VSHFL HG LQ WKLV VHUYLFH PDQXDO CAUTION R QRW FRQQHFW WKH WHVW WXUH JURXQG VWUDS WR DQ KHDW VLQN LQ WKLV UHFeiver 3 Do not spray chemicals on or near this receiver or any...

Page 5: ...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 semiconducto...

Page 6: ...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...

Page 7: ...RAY TO GRAY Angel of View Color Display 16 7M No of Preset Channels OSD Language En Color System PAL SECAM Audio System DK BG I Audio Output Power Built in W 8W 2 Audio Output Power outer W No Total P...

Page 8: ...07 Service Manual Model No 3 Location of Controls and Components 3 1 Board Location No Description A Board Main board 3 2 Main Board A Board Main board...

Page 9: ...anslate into signal that panel can display RQQHFWRU GH QLWLRQ Main board connector Pin number Signal name Description 1 RSPK RSPK 2 RSPK RSPK 3 LSPK LSPK 4 LSPK LSPK Keypad and remote connector CN201...

Page 10: ...3 3 LED Panel 09 Service Manual Model No V500HJ1 PE8 C7...

Page 11: ...Service Manual Model No 10 3 4 Connector Definition 3 4 Connector Definition...

Page 12: ...WKDW UHDU FRYHU faces upward 5HPRYH WKH VFUHZ IURP WKH UHDU FRYHU LQGLFDWHG ZLWK 7KHQ UHPRYH WKH SHGHVWDO 4 2 Remove the Back Cover 5HPRYH WKHVH VFUHZ LQGLFDWHG RQ JXUH DERYH E 7KHQ UHPRYH WKH EDFN FR...

Page 13: ...4 4 Remove the Main board 5HPRYH WKH 0DLQ ERDUG Service Manual Model No 12 LVFRQQHFWHG WKH FRXSOHU 4 5 Remove the speaker Take out the speaker...

Page 14: ...4 6 Remove the remote control board take out the remote controlboard Service Manual Model No 13...

Page 15: ...5 Installation Instructions 5 1 External Equipment Connections Service Manual Model No 14 Accessories Remote control refers to user manual Remote control refers to user manual...

Page 16: ......

Page 17: ......

Page 18: ...5V X5R 0805 RD64 4 7K RD141 120K 1 RD63 4 7K C107 0 1uF 16V X7R TLV62561 UD8 IC DCDC TLV62565 1 5A 5 5V SOT23 5 GND 2 LX 3 VIN 4 OUT FB 5 EN 1 C111 10uF 25V X5R 0805 C126 1000PF 50V X7R CD102 10uF 6 3...

Page 19: ...AMP_AUR 7 AV AUOUTR0 10 AV AUOUTL0 10 QP_S_1 8 IP_S_1 8 DISEQC 8 VBL_CTRL 2 AV 10 YPbPr PB 10 YPbPr PR 10 SCART AV IN 10 SCART FB 10 SCART FS 10 YPbPr Y 10 SCART G 10 SCART R 10 SCART B 10 VGA HSYNC 1...

Page 20: ...4 RXE_1 4 RXE_4 4 RXE_2 4 TUNER_SCL 4 TUNER_SDA 4 LCD_OP 4 Title Size Document Number Rev Date Sheet of Change list 1 0 MSD3643GSA Custom 5 10 Tuesday October 11 2016 Title Size Document Number Rev D...

Page 21: ...DMI1_RX1N 4 HDMI1_RX1P 4 HDMI1_CLKP 4 HDMI1_RX0N 4 HDMI1_CLKN 4 HDMI1_DEC 4 HDMI2_RX2P 4 HDMI2_RX2N 4 HDMI2_RX1P 4 HDMI2_RX1N 4 HDMI2_RX0N 4 HDMI2_CLKP 4 HDMI2_RX0P 4 HDMI2_CLKN 4 HDMI2_HPDIN 4 HDMI2_...

Page 22: ...nF 6 3V X5R C283 3300PF RD23 10K FB13 NC 600 2A 0805 RD125 100K CD10 1uF 25V X5R 0603 CD21 1uF 25V X5R 0603 LD3 10 4A 0603 CD77 NC 47nF 6 3V X5R QD1 3904 3 1 2 CD22 1uF 25V X5R 0603 RD128 1K RD18 NC 1...

Page 23: ...16 Title Size Document Number Rev Date Sheet of Change list 1 0 MSD3643GSA Custom 8 10 Tuesday October 11 2016 Title Size Document Number Rev Date Sheet of Change list 1 0 MSD3643GSA Custom 8 10 Tuesd...

Page 24: ...PCM_WAIT_N 4 TS1_CLK 4 PCM_IRQA_N 4 PCM_D 7 0 4 PCM_REG_N 4 TS0_CLK 4 PCM_CD_N 4 PCM_OE_N 4 PCM_WE_N 4 TS1_D 7 0 4 PCM_IORD_N 4 TS0_D 7 0 4 TS0_SYNC 4 TS0_VLD 4 TS1_SYNC 4 Title Size Document Number R...

Page 25: ...Change list 1 0 MSD3643GSA Custom 10 10 Tuesday October 11 2016 Title Size Document Number Rev Date Sheet of Change list 1 0 MSD3643GSA Custom 10 10 Tuesday October 11 2016 Title Size Document Number...

Page 26: ...Service Manual Model No 25...

Page 27: ...Service Manual Model No 7 Trouble shooting 7 1 Simple check 26...

Page 28: ...is 12V at Pin35 in CN202 No Replace the QD6 Yes Check if there is 43V at PCN4 Yes No test if PU5 Pin8 3 3V Pin1 normally Change LVDS wire No Replace PU5 Check if PQ6 PD14 PR46 works normally Yes Repl...

Page 29: ...e picture Check if there is sound input signal Check the input source Yes No Check if there is signal at C601 and C602 Check if there is signal at C220 and C221 No Yes Check if there is signal at FB11...

Page 30: ...es Check C138 1 2V Check CD86 1 5V Check C113 3 3V Change U107 Change UD7 Change Q101 No Yes Change mainchip U202 No Change Mainboard Still having problems No sound No picture NO LED indicate Check PD...

Page 31: ...or sound Change sound system No Update the software and make the reboot or change the Mainboard Still having problems For ease of use recommend that customer format the picture and sound settings in t...

Page 32: ...to relative instructions in the Manual for color adjust No No Yes Yes Check out of picture and sound system of this channel Change the channel to the right sound system PAL M N NTSC M No color for so...

Page 33: ...lace PD3 How to know whether the Power board is broken Still having problems Check if Main board LVDS wire Panel are in good condition No Reconnect the power cord with the outlet or Power board Yes EC...

Page 34: ...t software and work well 5 Verify if the Y1 Crystal has the right frequency Panel not work 1 Check the LED Back light set up IC output and input are working 2 Verify if the Mainboard output the right...

Page 35: ...t well Verify the power cord 5V standby is working 3 Check if voltage of the POWER ON OFF of the power board part is on the high level voltage 4 12V 5V output check if there is 12V 5V output on the po...

Page 36: ...r cracking Dim or L D TCP 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...

Page 37: ...r 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 P...

Page 38: ...isplay Maybe caused by surge 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 crossta...

Page 39: ...s 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...

Page 40: ...iption 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...

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