Haier LE49K6500U Service Manual
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Haier LE49K6500U Service Manual

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SERVICE MANUAL
LED TV
Model No.
LE49K6500U
MSD6586
Chassis
WARNING
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.

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Summary of Contents for Haier LE49K6500U

  • Page 1 SERVICE MANUAL LED TV Model No. LE49K6500U MSD6586 Chassis WARNING 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.

  • 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 ..................3. Location of Controls and Components........... 3-1. Board Location 3-2.
  • Page 3 Service Manual Model No.: 8. Measurements and Adjustments..…………......8-1. How to enter into the factory model 8-2. How to update software 8-3. How to enter into the Hotel Model 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 Service Manual Model No.: 1-3-6 Safety Check after Repairment in the original positions, or whether there are the positions which are deteriorated around the serviced places serviced or not. Check the insulation between the antenna terminal or external metal and the AC cord plug blades. And be sure the safety of that. General Servicing Precautions 1.
  • Page 6 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: each icon is described in the table below: Note:...
  • Page 8 Service Manual Model No.: - 07 -...

  • Page 9: Location Of Controls And Components

    Service Manual Model No.: 3. Location of Controls and Components 3-1 Board Location A Board B Board Description A Board Mainboard Power Supply B Board 3-2 Main Board - 08 -...
  • Page 10 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 definition Main board connector Power connectors ( J 20 ) Notes: J 20-Pin 3: Backlight on/off: The system can turn on or turn off the backlight of TFT LCD Panel through the power supply unit path.
  • Page 11 Service Manual Model No.: Keypad and remote connector ( 2) Keypad and remote connector ( 2) Keypad and remote connector (J 2) WIFI J ACK J 25 - 10 -...

  • Page 12: Power Board

    Service Manual Model No.: 3-3. Power Board 3-3-1 Function Description: Supply power for Main board, Panel. 3-3-2Connectordefinition CON201 Pin number Signal name SGND ON/BK ON/OFF +5VSTB +12V +12V - 11 -...
  • Page 13 Service Manual Model No.: 3-4. LED Panel LSC490FN02-W/ - 12 -...
  • Page 14 Service Manual Model No.: 3-4-1.Connector de finition...

  • Page 15: Disassemble And Assemble

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

  • Page 16: Remove The Main Board

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

  • Page 17: Remove The Remote Control Board

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

  • Page 18: Installation Instructions

    Service Manual Model No.: 5. Installation Instructions 5-1 External Equipment Connections Battery Remote Control 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 19 INSTALLATION ANTENNA - 18 -...
  • Page 20 INSTALLATION * Subject to material object. SUPPORTED MODE (PC) V.Freq.(Hz) H.Freq.(KHz) RESOLUTION 640*480 31.47 800*600 37.88 1024*768 48.36 1366*768 47.71 63.98 1280*1024 1920*1080 67.5 (Only for 40") NOTE: PC V.Freq.(Hz) not more than 60Hz. PRESET MODE (HDMI) V.Freq.(Hz) H.Freq.(KHz) RESOLUTION 800*600 37.88 48.36...
  • Page 21 AV EQUIPMENT This TV provides one group 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. - 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: Use the attached power cord only. electrician replace the obsolete outlet.

  • Page 25: Operation Instructions

    S e r v i c e M a n u a l M od e l No . : 6. Operation Instructions 6-1 Front panel controls KEYBOARD Front panel Rear/Side Sockets - 24 -...
  • Page 26 Remote Control TELETEXT Teletext is an information system broadcast by certain channels which can be consulted like a newspaper. It also offers access to subtitles for viewers with hearing problems or who are not familiar with the transmission language(cable networks, satellite channels, etc.) Press: You will obtain : This is used to call or exit teletext modes.
  • Page 27 5V_Standby_0.85A 5V_Normal_2.06A 12V_Normal_3.5A 5V_Standby 5V_Normal 12V_Normal 12V_Normal_3.5A 12V_Normal_1.5A V_Panel_1.5A 5V_Standby_0.85A GV3401 5V_Normal_2.06A ON/OFF 12V_Normal_2A 12V_Normal_1.5A 2*8W AD82587 12V_NORMAL_0.16A VDDC_CPU_1.05V_1.6A MSH6110 12V NORMAL 0.38A VDDC 0.96V 3.8A RT7240 5V_Normal_0.5A Cl_0.5A GV3401 ON/OFF 5V_Normal_0.3A TUNER_0.3A 1117-3.3 5V_Normal_1A FUSE 5V_USB_1A 1.5A MSD6586 5V_Normal_0.26A 3.3V_Normal_0.26A 1117-3.3 5V_Standy_0.5A...
  • Page 28 +12V_Normal VDDC_CPU Power +5V_Normal Vcc_Panel R124: U104 D101 538和6586统一为15K MSH6110A L102 +1.05_VDDC_CPU +12V_Normal 2.2uH/6A/不涂胶 NC/SS34 Addr 0x80 Note：能提供最大平均电流5A。 +5V_Standby STANDBY PVDD C118 R120 R122 C119 C120 C121 C122 C123 100K 0.1uF/16V/X5R 1*10P*2.54mm/180 330pF C124 C125 R123 +1.05_VDDC_CPU R124 15K/1% 远端反馈,即 从IC 底部引线 C126 C127 R2=50K...
  • Page 29 HDMI/Audio Block PCMCIA/TS/NAND/FE GPIO Pull up Note : Port A needs shielding ground all signal pair U201B Audio Block PCM_D[7:0] PCM_D0 AC25 PCM_D1 PCMDATA[0]/CI_DATA[0] +3.3V_Standby AG23 U201C PCMDATA[1]/CI_DATA[1] PCM_D2 AB25 PCMDATA[2]/CI_DATA[2] PCM_D3 AD25 HDMI1-RX0N C201 2.2uF/6.3V/X5R YPBPR_AUL RXA0N LINE_IN_0L 靠近mstar IC PCM_D4 PCMDATA[3]/CI_DATA[3] VID_0...
  • Page 30 Standby Power 3.3V CORE Power +3.3V_Standby VCC3.3VA +1.10V_VDDC U201G C302 C303 C304 C305 C306 C307 C308 0.1uF/16V/X5R U201F C301 C309 C310 C311 C312 C313 C314 C315 C316 C317 C318 C319 C320 C0402 C0402 0.1uF/16V/X5R 2.2uF/6.3V/X5R 0.1uF/16V/X5R 0.1uF/16V/X5R NC/2.2uF/6.3V/X5R 0.1uF/16V/X5R C0805 C0805 C0603 C0603...
  • Page 31 AVDD_DDR1_S MU 01 NT5CB256M16DP-EK 33RX RP 0 33RX RP 05 D-DDR3-ODT-T1 D_DDR3_ODT D_DDR3_ODT D-DDR3-ODT-T2 BA2,CSB1,CSB2 need GND shielding D-DDR3-A0-T1 D-DDR3-DM1 D_DDR3_CSB1 D_DDR3_CSB2 D-CSB1 D-CSB2 D-DDR3-A1-T1 D-DDR3-DQS1 DQSU D-DDR3-A2-T1 D-DDR3-DQS1B /DQSU 82RX RP 06 82RX RP 00 D-DDR3-A3-T1 D_DDR3_BA2 D_DDR3_BA2 D-DDR3-BA2-T1 D-DDR3-BA2-T2 D-DDR3-A -T1 D-DDR3-DQ8...
  • Page 32 +3 3V_EMMC eMMC +1.8V_Normal EMMC_VIO R1126 ONLY SAMSUNG ADD 10K/NC U501 eMMC C501 C502 C503 EMMC_CLK EMMC_D4 EMMC_CMD EMMC_D5 2 2uF/6 3V/X5R EMMC_D0 EMMC_D6 0.1uF/16V/X5R EMMC_D1 EMMC_D7 0.1uF/16V/X5R EMMC_D2 EMMC_DS EMMC_D3 EMMC_RST RESET +3.3V_Normal +3.3V_NAND +3.3V_EMMC EMMC_VIO +3.3V_EMMC VDD_IF VDD_IF C504 C506 C507...
  • Page 33 VB1 & LVDS CMI/LG/Samung 4K2K@60HZ +3.3V_Normal R603 R6920 V_Panel C601 0.1uF/16V/X5R R6926 0R/NC B2M_1 P601 VBY0N C602 0.1uF/16V/X5R VBY0P R6927 0R/NC B2P_1 BCKM C605 0.1uF/16V/X5R VBY1N R6928 0R/NC BCKM_1 Data_fromat_0 BCKP C606 0.1uF/16V/X5R VBY1P R6929 0R/NC BCKP_1 Data_fromat_1 B3M_1 C607 0.1uF/16V/X5R VBY2N R6930...
  • Page 34 Scart AV & RGB In Audio Out SCART_RIN+ SCART SCART_RIN+ SCART_GIN+ SCART_GIN+ SCART_BIN+ SCART/HAIER/NC +12V_Normal SCART_BIN+ R702 10K/NC SC-FS AV-ROUT 2.2uF/6.3V/X5R/NC SC-FB AUDIO_OUT_R R1807 100R/NC AV-LOUT C701 AV_LOUT SCART-AuRin AV-ROUT R1808 C702 R1813 AV_ROUT AUDIO_IN_R R705 R706 R707 R708 R709...
  • Page 35 HDMI1(ARC) P801 HDMI/180/SMT HDMI1_RX2P HDMI1-RX2P DATA2+ DATA2 SH ELD HDMI1_RX2N HDMI1-RX2N DATA2- HDMI1_RX1P +5V_HDMI1 +5V_HDMI1 HDMI1-RX1P HDMI1-RX2P DATA1+ HDMI1-RX2P HDMI1-RX2N DATA1 SH ELD HDMI1-RX2N HDMI1_RX1N +5V_HDMI1 HDMI1-RX1N HDMI1-RX1P DAT1A- HDMI1-RX1P HDMI1_RX0P HDMI1-RX0P R802 R803 HDMI1-RX1N DATA0+ HDMI1-RX1N HDMI1-RX0P R805 DATA0 SH ELD HDMI1-RX0P HDMI1_RX0N HDMI1-RX0N...
  • Page 36 TUNER CASE TUNER POWER AGC RC Filter &I2C XS110 DIF IN&OUT 1117-3.3V 100R SDA-T T_SDA 100R SCL-T T_SCL IF-IN- 0.22uH DIFM DIFM +3.3V_TU C2252 NTSC/大 47pF 12pF/NC 47pF 47pF +5V_Normal IF_AGC_TUNER L1107 120R/FBI C1022 C1023 C1024 IF-IN+ 0.22uH DIFP 100R IF-AGC-T DIFP IF_AGC...
  • Page 37 USB Interface USB2.0 Power 双层USB卧式 +5V_Normal +5V_USB 预留二极管，防止电流倒灌 USB ESD分布电容要求<2pF P1001 +5V_USB D1002 1.5A/FUSE/NC Note:0R电阻靠近端子,减小ESD. R1821 USB1_5V R1001 Note:电容靠近USB端子,提供usb读写稳定性 USB1_D- USB1_D- +5V_USB R1002 USB1_D+ USB1_D+ D1001 D1003 USB2_5V C2232 C1001 C1002 USB2_D- USB2_D+ NC/1pF NC/1pF 0.1uF/16V/X5R 10uF/10V/X5R 10uF/10V/X5R 双层USB R1003 USB2_D- R1004 USB2_D+...
  • Page 38 PCMCIA CARD DETECT +5V_PCMCIA P1101 +5V_Normal PCMCIA/无横杆/无鱼叉/NC PCM_CD1_N PCM_D3 CD1# TS_MDO3 PCM_D4 MDO3 TS_MDO4 PCM_D5 R1102 R1103 MDO4 TS_MDO5 PCM_D6 1K/NC 1K/NC MDO5 TS_MDO6 PCM_D7 MDO6 TS_MDO7 PCM_CE_N PCM_CD1_N R1104 10K/NC PCM_CD_N MDO7 CE1# +5V_PCMCIA PCM_A10 CE2# PCM_OE_N PCM_CD2_N R1105 10K/NC R1106 C1101...
  • Page 39 AMP_LA L-OUT+ 12V/24V_amp 22uH/2A/不涂胶 CA31 1000pF AMP_PD# CA29 0.47uF/50V/X7R VDDLA ERROR AUSD_OUT AMP_LA RA230 22R 22uH/2A/不涂胶 AUSD_OUT SDATA AUWS_OUT RA229 22R CA32 1000pF L-OUT+ AUWS_OUT LRCIN GNDL AMP_LB AMP_LB I2C-SDA L-OUT- 2,3,7 I2C-SDA CA63 CA64 I2C-SCL L-OUT- 2,3,7 I2C-SCL VDDLB AMP_RST LA16 RESET...

  • Page 40: Wiring Connection Diagram

    Service Manual Model No.: 7-3 .Wiring Connection Diagram NO.Name Connection Wire(For Speaker) Connection Wire(Power For Mainboard) VBO Wire Connection Wire(For Remote and Keyboard) WIFI Wire - 36 -...
  • Page 41 Service Manual Model No.: 9. Trouble shooting 9-1. Simple check - 51 -...
  • Page 42 Service Manual Model No.: 9-2. Main board failure check No picture but have sound Check if there is Check whether the normal +3-5V at Pin2-3 in Replace Power supply work of the backlight Check if there is +12V at Pin38 in CN202 Replace Main board Replace the Change LVDS...
  • Page 43 Trouble Shooting AV No sound but have picture Check if there is sound input signal Check the input source Check if there is signal at C3 and C4 Check if there is signal at RA230 RA229 and RA40 RA228 Change U201 Check if there is signal at LA3,LA8,LA16,LA15 Change UA4 Change L32 voltage...
  • Page 44 Trouble Shooting No sound No picture NO LED indicate Check if there is voltage in Change the J20(Pin1~2:12V;Pin8:5V;Pin9:2~ power board 5V;Pin10~11:5V;Pin12:3.3V) Still having problems Check if L17(0.97V) ， Change U11 or L102(1.06V) ， U104 or U106 L103 (1.5V) are OK Change Mainboard Change the mainboard...
  • Page 45 Trouble Shooting Poor sound Poor sound Verify if sound system is Change Speaker correct . For ease of use, recommend that customer format the picture and sound settings in the automatic option. Update the software and Still having make the reboot; problems or change the Mainboard...
  • Page 46 Trouble Shooting • Mainboard not work Panel not work  • 1. check if there is +12V/+5V 1. check if the voltage input and  output on the power board output of voltage boost IC of the • 2.Verify if the DC/DC convertors backlight is OK ；...
  • Page 47 Trouble Shooting Power board not work  1.Verify if the power cord connect well；  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;...
  • Page 48 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 49 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 50 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 51 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 52 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 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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