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Pin38 in CN202

J20

Change Panel

Still having

problems

No picture but have

sound

Check if there is +12V at

No

Replace the

U49

Yes

Yes

No

Change LVDS

wire

Check if there is

+3-5V at Pin2-3 in

Check whether the normal

work of the backlight

Replace Main board

Replace Power supply

Yes

No

Replace Main board

Service Manual

Model No.:

9-2. Main board failure check

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Содержание LE50K6500U

Страница 1: ...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 WARNING LE50B8000TF Model No LE50K6500U ...

Страница 2: ... 4 1 Remove the Pedestal 6 8 8 8 8 11 14 14 4 2 Remove the Back Cover 14 4 3 Remove the Adhesive Tape 14 4 4 Remove the Main Board 15 4 5 Remove the Speaker 15 4 6 Remove the Remote Control Board 16 5 Installation Instructions 17 5 1 External Equipment Connections 17 5 2 HDMI Connections 21 6 Operation Instructions 24 6 1 Front Panel Controls 6 2 Back Panel Controls 6 3 Universal Remote Control 24...

Страница 3: ...le shooting 51 9 1 Simple Check 51 9 2 Main Board Failure Check 9 3 Panel Failure 52 58 8 1 How to enter into the factory model 8 2 How to update software 48 49 8 Measurements and Adjustments 37 8 3 How to enter into the Hotel Model 50 ...

Страница 4: ...ngerous to make any king of contact with any inside part of this product This symbol indicates that there are important operating and maintenance instructions in the literture accompanying the appliance 1 3 2 Be careful to the electrical shock to rain or excessive moisture This TV must not be exposed to dripping or splashing water 1 3 3 Electro static discharge ESD Some semiconductor solid state d...

Страница 5: ...ks with which receivers covered by this service manual might be equipped CAUTION eiver 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 comparable non abrasive applicator 10 by volume Acetone and 90...

Страница 6: ...ces 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 ...

Страница 7: ...elow 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 injury Reference ...

Страница 8: ...Service Manual Model No 07 6SHFL FDWLRQV ...

Страница 9: ... 08 Service Manual Model No 3 Location of Controls and Components 3 1 Board Location No Description 3 2 Main Board A Board A Board Mainboard B Board Power Supply B Board ...

Страница 10: ...on off The system can turn on or turn off the backlight of TFT LCD Panel through the power supply unit path J20 Pin 5 System power on standby System board will use this pin to control system power J20 Pin 3 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 Speaker connector CN604 Pin number Signal n...

Страница 11: ... 10 Service Manual Model No Keypad and remote connector J2 Keypad and remote connector J2 Keypad and remote connector J2 WIFI JACK J J J J25 ...

Страница 12: ...escription Supply power for Main board Panel 3 3 2Connectordeﬁnition Service Manual Model No 11 CON201 Pin number Signal name 1 5V 2 ON BK 3 4 5VSTB 5 GND 6 5V 7 J J J J 5V 8 GND 9 10 11 ON OFF 12 SGND J J J AJ J J J D GND 12V 13 12V ...

Страница 13: ...3 4 LED Panel 12 Service Manual Model No V500DJ6 QE1 T1 ...

Страница 14: ...Service Manual Model No 13 3 4 1 Connector de finition ...

Страница 15: ...4 Disassemble and assemble Remove the adhesive tape indicated on the faces upward 4 2Remove the Back Cover unit Service Manual Model No 14 4 1 Remove the Pedestal 4 3 Remove the adhesive tape ...

Страница 16: ...4 4 Remove the Main board Service Manual Model No 15 J2 J25 J20 P501 4 5 Remove the speaker Take out the speaker LE49U6500DUA ...

Страница 17: ...4 6 Remove the remote control take out the Remote Control and Keypad Assembly Service Manual Model No 16 4 7 Remove the Power Supply ...

Страница 18: ...ot 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 To improve picture quality from an antenna in a poor signal area install a signal If you need to split the antenna signal to connect two TVs install a two way splitter Service Manual Model No 17 Remote Control ...

Страница 19: ...ANTENNA INSTALLATION PC 18 ...

Страница 20: ...re than 60Hz 1 2 3 640 480 800 600 60 60 31 47 37 88 RESOLUTION V Freq Hz H Freq KHz 1024 768 60 48 36 PRESET MODE HDMI 1 2 3 800 600 1024 768 60 60 37 88 48 36 RESOLUTION V Freq Hz H Freq KHz 1366 768 60 47 71 4 1280 768 60 47 3 5 1920 1080 60 67 5 4 5 1366 768 60 47 71 1280 1024 60 63 98 6 1920 1080 Only for 40 60 67 5 19 ...

Страница 21: ...of AV one group of YPbPr for convenient connection to VCR DVDor other video equipment Please refer to the owner s manual of the equipment to be connected as well You can use the input terminals on TV set rear as follows AV EQUIPMENT ...

Страница 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...

Страница 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 ...

Страница 24: ...eration on AC Insert the AC cord plug into a standard polarized AC outlet NOTES Use the attached power cord only electrician replace the obsolete outlet simply unplug the unit from the AC outlet and plug it back in The unit should return to normal operation Service Manual Model No 23 ...

Страница 25: ...Front panel KEYBOARD Service Manual Model No 6 Operation Instructions 6 1 Front panel controls 24 Rear Side Sockets ...

Страница 26: ...tomatically displayed successively This key is used to stop or resume sub page acquisition The indication appears top left To freeze the page To display or hide the concealed information games solutions This is used to call or exit teletext modes The summary appears with a list of items that can be accessed Each item has a corresponding 3 digit page number If the channel selected does not broadcas...

Страница 27: ...V3401 Cl_0 5A ON OFF 5V_Normal_0 5A GV3401 MOS ON OFF V_Panel_1 5A 12V_Normal_1 5A 12V_Normal_3 5A 12V_Normal_2A AMP AD82587 2 8W 12V_Normal_1 5A 5V_Standby_0 85A 5V_Normal_2 06A 5V_Standby 5V_Normal 12V_Normal 5V_Standby_0 85A 5V_Normal_2 06A 12V_Normal_3 5A Title Size Document Number Rev Date Sheet of Doc RevCode 01 Power_Tree A3 1 13 Thursday March 30 2017 Title Size Document Number Rev Date Sh...

Страница 28: ...6943 4 7K 1 R6944 NC C107 22uF 6 3V X5R NC U11 RT7240 EN 1 FB 2 VCC 8 SW 6 BST 7 GND 5 SS 4 VREG5 3 GND 9 C2261 220uF 10V X5R LowESR H105 NC 1 R6856 100K H108 NC 1 C118 0 1uF 16V X5R R118 1K C162 0 1uF 16V X5R J26 1 10P 2 54mm 180 1 2 3 4 5 6 7 8 9 10 C135 10uF 10V X5R C2245 10uF 16V X5R C2179 10pF NC C105 22uF 6 3V X5R H110 NC 1 C108 0 1uF 16V X5R L103 2 2uH 2 2A 1 2 L17 2 2uH 6A 不涂胶 1 2 C110 0 1...

Страница 29: ...XD0P F2 RXD1N G3 RXD1P G2 RXD2N H3 RXD2P H2 RXDCKN E1 RXDCKP F3 DDCDD_CK K5 DDCDD_DA L5 HOTPLUGD M6 ARC0 M4 CEC P5 LINE_IN_2L Y1 LINE_IN_2R AA3 HOTPLUGA_HDMI20_5V U3 HOTPLUGB_HDMI20_5V P4 HOTPLUGD_HDMI20_5V L4 EARPHONE_OUT_L AD5 EARPHONE_OUT_R AD6 RXC0N B1 RXC0P C1 RXC1N C2 RXC1P D3 RXC2N D2 RXC2P E3 RXCCKN A2 RXCCKP B2 DDCDC_CK M5 DDCDC_DA L6 HOTPLUGC J4 HOTPLUGC_HDMI20_5V H4 NC T21 NC R20 NC R21...

Страница 30: ...Y12 AVDD3P3_DADC W7 AVDD_PLL_A Y13 GND_EFUSE P22 VDDP_3318_A AA10 AVDD3P3_USB U7 DVDD_DDR M10 DVDD_DDR N10 VDDC G7 VDDC G8 VDDC L7 AVDD3P3_ADC V7 AVDD_DDR_VBP_A_DM M13 VDDC_CPU V19 VDDC_CPU V20 VDDC_CPU V18 VDDC_CPU W20 AVDD_EAR33 U9 AVDD_LPLL AA13 AVDD15_MOD K15 AVDD_PLL_B Y14 AVDD_DDR_A M15 AVDD15_MOD K16 AVDD_DDR_VBP_A J27 AVDD_LPLL AB13 VDDP AB15 AVDD3P3_USB T7 AVDD3P3_ADC V8 AVDD3P3_MHL3 AA12...

Страница 31: ...3_DQ11 D_DDR3_DQ10 D_DDR3_DQ13 D_DDR3_DQ12 D_DDR3_DM1 D_DDR3_DQS1B D_DDR3_DQS1 D_DDR3_DQ3 D_DDR3_DQ2 D_DDR3_DQ5 D_DDR3_DQ4 D_DDR3_DQ0 D_DDR3_DQ7 D_DDR3_DQ6 D_DDR3_DQ1 D_DDR3_DM0 D_DDR3_DQS0B D_DDR3_DQS0 D CSB1 D CSB2 AVDD_DDR1_S AVDD_DDR1_S AVDD_DDR1_S AVDD_DDR1_S 1 5V_DDR AVDD_DDR1_S AVDD_DDR1_S AVDD_DDR1_S AVDD_DDR1_S AVDD_DDR1_S AVDD_DDR1_S AVDD_DDR1_S 1 5V_DDR 1 5V_DDR 1 5V_DDR Title Size Docu...

Страница 32: ... Date Sheet of Doc RevCode 06 EMMC NAND SD Custom 6 13 Thursday March 30 2017 Title Size Document Number Rev Date Sheet of Doc RevCode 06 EMMC NAND SD Custom 6 13 Thursday March 30 2017 Title Size Document Number Rev Date Sheet of Doc RevCode 06 EMMC NAND SD Custom 6 13 Thursday March 30 2017 R503 22R C514 NC 7 5 3 1 8 6 4 2 RP501 22RX4 R504 22R C509 2 2uF 6 3V X5R C0402 R521 22R U501 eMMC VDD U9 ...

Страница 33: ...ACKP 3 A2P 3 B4P 3 A4M 3 3D_LR_in 3 LR_SYNC 3 3D_EN 3 I2C SDA 2 3 13 I2C SCL 2 3 13 PANEL_ON OFF 3 I2C SCL 3 7 13 I2C SDA 3 7 13 Title Size Document Number Rev Date Sheet of Doc RevCode 07 LVDS VBY1 Custom 7 13 Tuesday April 18 2017 Title Size Document Number Rev Date Sheet of Doc RevCode 07 LVDS VBY1 Custom 7 13 Tuesday April 18 2017 Title Size Document Number Rev Date Sheet of Doc RevCode 07 LVD...

Страница 34: ... 14 TCM 15 TX 16 R734 100R R1411 12K C2222 0 1uF 16V X5R R703 75R R707 75R NC C703 1000pF 2KV R1813 4 7K NC R729 100R CON2 COAX NC 1 2 3 4 Q506 3904 NC Green Yellow P704 RJ45 无灯 TD 1 TD 2 RD 3 TDCT 4 RDCT 5 RD 6 NC 7 CH_GND 8 GRN 9 GRN 10 ORG 12 ORG 11 GND1 13 GND2 14 R724 75R C554 33pF R1814 47K NC R1811 68R NC R474 0R NC C2264 10uF 10V X5R R702 10K NC C706 0 1uF 16V X5R R1815 8 2K NC R1812 10K N...

Страница 35: ...RX1P 3 HDMI2 RX1N 3 HDMI2 RX2P 3 HDMI2 RX2N 3 HDMI2 CLKP 3 HDMI2 CLKN 3 HDMI2 RX0P 3 HDMI2 Detect 3 HDMI3 SCL 3 HDMI3 SDA 3 HDMI3 HPD 3 HDMI3 RX0N 3 HDMI3 RX1P 3 HDMI3 RX1N 3 HDMI3 RX2P 3 HDMI3 RX2N 3 HDMI3 CLKP 3 HDMI3 CLKN 3 HDMI3 RX0P 3 HDMI3 Detect 3 HDMI1 Detect 3 HDMI1 RX0N 3 HDMI1 RX1P 3 HDMI1 RX1N 3 HDMI1 RX2P 3 HDMI1 RX2N 3 HDMI1 CLKP 3 HDMI1 CLKN 3 HDMI1 RX0P 3 HDMI1 SCL 3 HDMI1 SDA 3 HD...

Страница 36: ... R842 1M GND OUT IN U1 1117 3 3V 3 2 1 4 L812 0 022uH C2 47pF L813 0 022uH C829 1uF 10V X5R C11 47pF L1105 1000R FBI C1 47pF C2228 0 1uF 16V X5R Y1004 16MHz 20pF 1 2 C2253 1000pF R5 100R C1022 0 1uF 16V X5R C833 1000pF C834 2 2uF 6 3V X5R R2 0 22uH U805 MxL661 VDD_3p3_1 1 LNA_INP 2 LNA_INN 3 VDD_1p8_1 4 AGC_2 GPO3 5 AGC_1 6 IF_OUTN_1 9 IF_OUTP_1 10 IF_OUTN_2 GPO_1 7 IF_OUTP_2 GPO_2 8 VDD_3p3_2 11 ...

Страница 37: ...fi A 11 13 Thursday March 30 2017 Title Size Document Number Rev Date Sheet of Doc RevCode 11 USB Wifi A 11 13 Thursday March 30 2017 Title Size Document Number Rev Date Sheet of Doc RevCode 11 USB Wifi A 11 13 Thursday March 30 2017 D1004 NC 1pF J25 1 7P 2 0mm 180 1 2 3 4 5 6 7 R1002 0R C1002 0 1uF 16V X5R P1001 双层USB USB1_5V 1 USB1_D 2 USB1_D 3 GND 4 USB2_5V 5 GND 8 USB2_D 6 USB2_D 7 GND 12 GND ...

Страница 38: ..._WE_N 3 TS_MOSYNC 3 TS_MOVLD 3 PCM_CD_N 3 PCM_IORD_N 3 TS_MDO 7 0 3 TS_D 7 0 3 TS_VLD 3 TS_CLK 3 TS_SYNC 3 Title Size Document Number Rev Date Sheet of Doc RevCode 12 PCMCIA CA Custom 12 13 Thursday March 30 2017 Title Size Document Number Rev Date Sheet of Doc RevCode 12 PCMCIA CA Custom 12 13 Thursday March 30 2017 Title Size Document Number Rev Date Sheet of Doc RevCode 12 PCMCIA CA Custom 12 1...

Страница 39: ...eet of Doc RevCode 13 Amplify B 13 13 Thursday March 30 2017 Title Size Document Number Rev Date Sheet of Doc RevCode 13 Amplify B 13 13 Thursday March 30 2017 LA8 22uH 2A 不涂胶 R1213 1K XS403 1 4P 2 54mm 180 1 2 3 4 CA32 1000pF LA16 22uH 2A 不涂胶 C2233 10uF 10V X5R CA35 0 1uF 50V X5R CA56 1000pF C1568 1000pF R1218 12K RA60 1M RA40 22R RA230 22R CA31 1000pF CA29 0 47uF 50V X7R C1218 22uF 6 3V X5R C080...

Страница 40: ...vice Manual Model No 7 3 Wiring Connection Diagram 36 4 3 NO Name 1 2 3 4 Connection Wire For Remote and Keyboard Connection Wire For Speaker VBO Wire Connection Wire Power For Mainboard 1 2 WIFI Wire 5 5 ...

Страница 41: ...Service Manual Model No 9 Trouble shooting 9 1 Simple check 51 ...

Страница 42: ...nd Check if there is 12V at No Replace the U49 Yes Yes No Change LVDS wire Check if there is 3 5V at Pin2 3 in Check whether the normal work of the backlight Replace Main board Replace Power supply Yes No Replace Main board Service Manual Model No 9 2 Main board failure check 52 ...

Страница 43: ...ck if there is sound input signal Check the input source Yes No No Yes Check the speakers Yes 12V Else 53 Change U201 Check if there is signal at C3 and C4 Check if there is signal at RA230 RA229 and RA40 RA228 Check if there is signal at LA3 LA8 LA16 LA15 Change L32 voltage Change UA4 Change L32 ...

Страница 44: ...f L17 0 97V J20 Pin1 2 12V Pin8 5V Pin9 2 Trouble Shooting No sound No picture NO LED indicate Change Mainboard Check if there is voltage in 5V Pin10 11 5V Pin12 3 3V Change the power board No Yes No No Still having problems Yes To upgrade Change the mainboard 54 ...

Страница 45: ...rect Poor sound 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 the automatic option Trouble Shooting Change Speaker 55 ...

Страница 46: ... right software and right voltage 3 3V right frequency 24MHz Panel not work 1 check if the voltage input and output of voltage boost IC of the backlight is OK 2 Verify if the Mainboard output the right On Off signal to power board 3 Verify if the Mainboard output the LVDS singal to panel T con board 4 Verify if the software is the right version of this model 5 Change the LVDS wire to check if it s...

Страница 47: ...ll 2 check if 5Vstandby of the power board part is functioning normally 3 Check if voltage of the POWER ON OFF of the power board part is on the high level voltage 4 check if there is 12V 5V output on the power board Check if Main board LVDS wire Panel are in good condition 57 ...

Страница 48: ...or 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 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 ...

Страница 49: ...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 59 ...

Страница 50: ...display 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 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 ...

Страница 51: ...ss 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 inB L white balck Rotundi...

Страница 52: ...ription 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 ...

Страница 53: ...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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