Haier LE55K5000TFNa Service Manual
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Haier LE55K5000TFNa Service Manual

6308n chassis
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SERVICE MANUAL
LED TV
LE55K5000TFNa
Model No.
6308N
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 LE55K5000TFNa

  • Page 1 SERVICE MANUAL LED TV LE55K5000TFNa Model No. 6308N 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.: LE55K5000TFNa Model Screen Size 55 inch Aspect Ratio 16:9 Resolution 1920*1080 8.5 (GRAY TO Response Time (ms) GRAY) Angel of View 176o Color Display 16.7M 1000(DTV);100(ATV) No. of Preset Channels OSD Language English Color System PAL/SECAM...

  • 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 ) Pin number Signal name Pin number Signal name +12V...
  • Page 11 Service Manual Model No.: Keypad and remote connector (CON4) Pin number Signal name Description KEY1 KEY0 POWER FOR REMOTE REMOTE CONTROL STANDBY LED_G LAMP GREEN LED_R LAMP RED Speaker connector ( XS403 Pin number Signal name Description RSPK+ RSPK+ RSPK- RSPK- LSPK- LSPK-...

  • 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 +12V +12V +5VSTB POWER ON/OFF ON/BK SGND - 11 -...
  • Page 13 Service Manual Model No.: 3-4. LED Panel LSC550HN01-K01 - 12 -...
  • Page 14 Service Manual Model No.: 3-4-1.Connector de finition Symbol Description Symbol Description NOTE2 NOTE1 NOTE2 NOTE1 NOTE2 Rx2[A]N Even LVDS Signal - NOTE1 Rx2[A]P Even LVDS Signal + NOTE1 Rx2[B]N Even LVDS Signal - NOTE1 Rx2[B]P Even LVDS Signal + NOTE1 Rx2[C]N Even LVDS Signal - NOTE1...
  • Page 15 Service Manual Model No.: Note (1) No connection: These PINS are used only for the product of SAMSUNG. (DO NOT CONNECT the input device to these pins.) Note (2) Pin No. 1, 2, 3 are used only for I2C communication in flicker tuning. (Refer to 9.5 Process Executing Guide) Note (3) If set input is 8bit LVDS signal, Keep Echannel level ‘0’...

  • Page 16: 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 17: Remove The Main Board

    Service Manual Model No.: 4-4 Remove the Main board X21 J20 CON4 J24 XS403 4-5 Remove the speaker Take out the speaker - 15 -...

  • Page 18: 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 19: Installation Instructions

    Service Manual Model No.: 5. Installation Instructions 5-1 External Equipment Connections Accessories Battery User GUIDE 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 20 INSTALLATION ANTENNA * The TV appearance subject to material object. Note: Aerial connections: IEC(female). Input impendance: 75 unbalanced. STEPS: Be sure both the TV and computer are Power off. 1.Connect VGA and audio cable 2.Connect power cord 3.Power on the TV, switch to PC mode 4.Power on the PC This sequence is very important.
  • Page 21 INSTALLATION * Subject to material object. AC-INPUT HDMI2(ARC) HDMI3 SCART PC AUDIO 100-240V~ 50/60Hz 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)
  • Page 22 INSTALLATION Green (Y) Blue (Pb/Cb) W White(AUDIO-L ) Red (AUDIO-R, Pr/Cr) Y Yellow (VIDEO) AC-INPUT HDMI2(ARC) HDMI3 SCART PC AUDIO 100-240V~ 50/60Hz Audio/Video machine with HDMI interfaces COMMON INTERFACE(CI) HDMI1 OPTICAL YPbPr AV IN HEADPHONE Audio Receiver CVBS, DVD Player or other CVBS, DVD Player or other machine with YPbPr/YCbCr.

  • Page 23: 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 24 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 25 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 26: Operation Instructions

    S e r v i c e M a n u a l M od e l N o .: 6. Operation Instructions 6-1 Front panel controls SOURCE MENU V- CH- CH+ Standby ≤8m SOURCE Display the input source menu. Remote control sensor.
  • Page 27 Service Manual Model No.: 6-3 Setting Up Your Remote Control SCREEN Press to change picture aspect ratio. Press to open the on-screen menu.In teletext mode,press to open the INDEX page. Press to navigate the on-screen menu. Press to confirm a selection. Press to return to the previous screen.In teletext mode,press to enter mix mode.
  • Page 28 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 29 5V_STB/1.4A 320MA AMS1117-3.3V 3.3V_STBY/320MA IN/1A SWITCH 5V_MHL/1A 5V_Normal/200mA 1.5V_DDR/500mA 8008B/1A 1A(NC) 12V/1.38A MSDXXX 5V_Normal/950mA MP1471 5V_Normal/150mA AMS1117-3.3V 3.3V_Normal/150MA 2.35A STB_EN 5V_Normal/300mA 1.2V/300MA 1117ADJ POWER IN 5V_Normal/300mA AMS1117-3.3V 3.3V_TU/300MA 5V_USB/1A FUSE 5V_USB/1A 12V/1A 5V_USB 5V_USB/800mA(NC) MP1470 STB_EN 5V_USB/1.5A(NC) 12V/1A LVDS/1.5A/1A 12V/1.85A 12V_Normal 12V/1.5A RT9108N...
  • Page 30 VDDC Connector +5V_USB L1008120R/FBI/NC +12V_PWR C506 +12V_Normal +1.15V_VDDC +5V_Standby 1uF/25V/X5R C1548 C1549 U501 L1009 120R/FBI L505 2.2uH/3A H :Power on R133 L :Power off 4.7K R1510 FB/OUT R1439 C512 STANDBY R136 200R 100K 19.6K_1% C524 C526 C1562 C1563 15,16 STANDBY PWR_ON/OFF MP1471AGJ +5V_USB...
  • Page 31 video NAND & CI & TS & Front End POWER&GND Close to MST IC RGB Interface with wide trace U201B R201 C201 RIN0 0.047uF/16V/X7R VGA-R R202 C202 GIN0N 0.047uF/16V/X7R TS0_D[7:0] R203 C203 GIN0 0.047uF/16V/X7R VGA-G PCM_D[7:0] TS0_D[7:0] R204 C205 BIN0 0.047uF/16V/X7R PCM_D0 TS0_D0...
  • Page 32 RN301 RN302 U201A B_DDR3_A12 B-DDR3-A12 B_DDR3_DQL0 B-DDR3-DQL0 B_DDR3_BA1 B_DDR3_DQL2 B-DDR3-BA1 B-DDR3-DQL2 B_DDR3_A0 B_A[0] B_DDR3_A1 B_A[1] B_DDR3_A2 B_A[2] B_DDR3_A3 B_A[3] B_DDR3_A4 RN303 RN304 B_A[4] B_DDR3_A5 B_DDR3_A10 B-DDR3-A10 B_DDR3_DQL6 B-DDR3-DQL6 B_A[5] B_DDR3_A6 B_DDR3_CKE B_DDR3_DQL4 B-DDR3-CKE B-DDR3-DQL4 B_A[6] B_DDR3_A7 B_A[7] B_DDR3_A8 B_A[8] B_DDR3_A9 B_A[9] B_DDR3_A10 B_DDR3_DQU5...
  • Page 33 SZ LVDS Connector Power for panel TCON Connector +5V_USB L1010 120R/FBI/NC HM3401 LVA4N LVA4P +12V_PWR LVA4N LVA4P LVA3N LVA3P L1015 120R/FBI V_Panel LVA3N LVA3P LVA4N LVA4P LVACLKN LVACLKP C402 LVACLKN LVACLKP LVA3N LVA3P LVA2N LVA2P C403 LVA2N LVA2P LVACLKN LVACLKP LVA1N LVA1P R401...
  • Page 34 HDMI1 P501 靠近端子放置 HDMI0-RX2P HDMI0/5V HDMI0-RX2P HDMI0-RX2N DATA2+ HDMI0-RX1P DATA2 SHIELD HDMI0-RX2N HDMI0-RX2P HDMI0_RX2P HDMI0/5V HDMI0-RX1N R501 DATA2- HDMI0_RX2P HDMI0-RX1P HDMI0-RX2N HDMI0_RX2N HDMI0-RX0P R502 DATA1+ HDMI0_RX2N R504 HDMI0-RX0N DATA1 SHIELD HDMI0_RX1P HDMI0-RX1N HDMI0-RX1P R503 R505 HDMI0-CLKP DAT1A- HDMI0_RX1P HDMI0_RX1N HDMI0-RX0P HDMI0-RX1N R506 HDMI0-CLKN...
  • Page 35 VIDEO IN VIDEO OUT SCART SCART-AV-IN SCART-AV-IN SCART-AuLin R610 SCART Connector VER SCART-LIN AV-OUT AV-OUT SCART-AuRin R611 SCART-RIN AV-LOUT AV-OUT AV-ROUT C601 2.2uF/16V/X7R AV-AUOUTL0 AUDIO_OUT_R AV-ROUT C603 2.2uF/16V/X7R AV-AUOUTR0 SCART-AuRin AUDIO_IN_R R604 CVBS_OUT R614 R615 AV-LOUT AUDIO_OUT_L R633 C605 D601 GND_Audio 120pF GND_Blue...
  • Page 36 P701 VGA-R VGA-B VGA-B VGA-G VGA-G VGA-G VGA-R VGA-R VGA-B R701 R702 R703 Close to Mstar IC VGA-W DDC-SCL-D UART-RX DDC-SDA-D UART-TX R704 100R PC_L_IN R1408 VGA-VSYNC PC_LIN R705 100R VGA-HSYNC PC_R_IN R1409 PC_RIN R706 R707 D843 ESD_0402_10pF DDC-SCL-D R1410 R1411 D844 ESD_0402_10pF DDC-SDA-D...
  • Page 37 USB2.0 INTERFACE USB2.0 POWER +5V_USB USB ESD分布电容要求<2pF +5V_USB2 +5V_USB1 P802 +5V_USB1 Note:5.1R电阻靠近端子,减小ESD. F801 VBUS USB0-DM R801 5.1R USB0_DM USB0_DM USB0-DP USB0_DP R802 5.1R USB0_DP 1.5A/FUSE +5V_USB1 +5V_USB2 D801 D803 SHELL SHELL USB-W NC/1pF NC/1pF P803 +5V_USB2 C801 C802 C803 C804 VBUS HUB4-DM USB1-DM...
  • Page 38 Amplif ier +12V_Normal +12V_ 120R/FBI L1206 +12V_AVCC C1453 C1454 C1452 C269 C296 1000pF 1uF/25V/X5R 1000pF 1uF/25V/X5R L0603 330uF/25V C1449 1uF/25V/X5R R283 C0603 R422 NC_10R C454 NC_330pF R1459 22.0uH_1.8A LOUTP BSPL C271 C273 FAULT 0.22uF/25V/X5R NC_FB_600R_2A 0.47uF/25V/X7R OUTPL AMP_L C1457 0.22uF/16V/X7R R423 NC_10R LINP...
  • Page 39 TDA18275 AGC RC Filter &I2C TUNER CASE +3.3V_TU XS110 +3.3V_TU +3.3V_TU R1002 R1003 R1017 100K IF-AGC 4.7K 4.7K C1027 6800pF SCL-T R1005 100R T_SCL T_SCL T_SDA SDA-T R1006 100R T_SDA U1004 RF_JACK/PAL 0.1uF/16V/Y5V C1034 IF-IN+ RF_GND IF_A_N C1035 C1031 BAV99W/NC C1033 IF-IN- D201...
  • Page 40 NAND FLASH NAND Power +3.3V_Normal +3.3V_Nand +3.3V_Nand +3.3V_Nand +3.3V_Nand U1202 C1204 NANDFLASH1G C1203 C1205 NC0/VCC NC28/VSS NC1/VSS NC27 R1225 NC26 NC25 NAND-D7 NAND-D6 NC5/R/B2 NAND-RBZ NAND-D5 NAND-REZ NAND-D4 NAND-CEZ NC24 NAND-WPZ NAND_WPZ RN1203 NAND_WPZ NC6/CE1 NC23 NAND_WEZ R1233 NAND-WEZ NAND_WEZ NC22/VCC NAND_ALE NAND-ALE...
  • Page 41 PCMCIA PCMCIA POWER P1301 PCMCIA PCM_CD1_N PCM_D3 CD1# TS0_D3 PCM_D4 MDO3 TS0_D4 PCM_D5 MDO4 TS0_D5 PCM_D6 MDO5 TS0_D6 PCM_D7 MDO6 TS0_D7 PCM_CE_N MDO7 CE1# +5V_Normal +5V_PCMCIA PCM_A10 CE2# PCM_OE_N F1301 VS1# PCM_IORD_N PCM_A11 IORD# PCM_IOWR_N PCM_A9 IOWR# PCM_A8 TS1_SYNC MISTRT TS1_D0 PCM_A13 C1306...
  • Page 42 Connector R1401 75R/1% U1401 P1401 MDI_TP MDI_TP MDI_TN MDI_TN R1402 75R/1% TDCT CH_GND R1403 75R/1% RDCT MDI_RP MDI_RP GND1 GND2 MDI_RN MDI_RN R1404 75R/1% TCM- ORG- ORG+ C1401 CB1402 CB1401 Green C1403 RJ45-J0011D21B GRN- GRN+ 1000pF/2KV 1000pF/2KV/NC Yellow RJ45-W AGND 2,3,4,5,6,7,8,9,10,11,12,13,15,16...
  • Page 43 DC/DC 12V TO 5V STANDBY DC/DC +5V_Standby +5V_Normal +5V_USB +12V_PWR C1483 1uF/25V/X5R/NC +12V_PWR C1493 1uF/25V/X5R/NC U1403 U1405 L1012 6U8/3A/NC L1014 6U8/3A/NC L1016 120R/FBI C1519 STANDBY C1501 R1494 R1507 FB/OUT FB/OUT C1463 C1476 C1477 C1478 R1506 C1500 C1494 C1495 C1496 R1495 CE39 C1498 100K/NC...

  • Page 44: Wiring Connection Diagram

    Service Manual Model No.: 7-3 .Wiring Connection Diagram NO.Name Connection Wire(For Speaker) Connection Wire(Power For Mainboard) LVDS Wire Connection Wire(For Remote and Keyboard) wife Wire - 41 -...

  • Page 45: Measurements And Adjustments

    Service Manual Model No.: Measurements and Adjustments Basic Operation DVB Tuning Type Power supply to switch on/off this Unit DVBT DVBC Before switch on, ensure that all connections will be proper and correct.Press Power on/off (at the botton of the rear panel of this Unit) to turn on/off this Unit.When the power indicator turns red, this Unit accesses the power on and Select DVB-T, press the OK button enter the country select...
  • Page 46 Operation When exit the tuning status, a pop-up screen will be displayed, select the YES item,then press the OK button to User Mode confirm to enter the Network menu. Network Picture Sound Network Wired Network > Brightness Wired Network Connected > Contrast Wi-Fi Network >...
  • Page 47 Operation 4.1.3 Auto Tuning (DVB-C) 4. TUNER MENU buttons to select In the Channel tuning, press the ◀▶ 1). Press the MENU button and then press the ▼ button to enter the TUNER submenu. ATV/CADTV/CADTV+ATV. 2). Press the ◀▶ buttons to select submenu Antenna Type/Auto Tuning/Manual Tuning/Program Edit/Signal/CI Channel Tuning CADTV...
  • Page 48 Operation 4.2.3 ATV Manual Tuning 4.2 Manual Tuning You can change the sound system to search the analog TV 4.2.1 DTV Manual Tuning (DVB-T) channels and fine tune the channels, the storage the 1).Press the◀▶ buttons to select the Manual Tuning menu channels you selected.
  • Page 49 Operation 4.4 Signal/CI Info Network Mode Signal / CI Info Auto Connect > Signal Information Manual Connect > CI Information Press the ▲▼ and OK buttons to select the Auto Connect, Move Enter MENU and the Connect State will pop-up and the Connecting state will display on the screen.
  • Page 50 Operation Please Enter Wifi Password Network State The Wifi network you select: D-Link_DIR_616 IP Address: Password ********** Display Password IP Mask: IP Getway: Cancel IP DNS: Press ◀▶ to move the cursor to select the Display Password stay On, it will show you the Wi-Fi password. Connect Please Enter Wifi Password Press the ▼▲...
  • Page 51 Operation OPTION OPTION RealTop DLNAd Directories: 4 Files: 0 Total: 4 Audio Language Italian HDMI_CEC Movie Subtitle Blue Screen Browse Folders Music Pictures Video Subtitle Language Store Cookies Italian Photo Hearing Impaired Shop Mode Music AD Switch Restore default PVR File System USB Upgrade Return Exit...
  • Page 52 OK button to enter into the Apps home page. At the first, button to play the file. the Haier Smart-TV portal window is pop-up, press the ▼▲ buttons and press the ok button to set apps language and enter into the terms of service page.
  • Page 53 Press the Exit key to exit the browser application. Note In the Haier Apps applications and the browser application , the PVR schedule will be ignored. 10. USB Player Press source key, and select USB in source list, press OK button to enter the USB menu.

  • Page 54: How To Enter Into The Factory Model

    Service Manual Model No.: 8.1 How to enter into the factory model 8.1 How to enter into the factory model 8.1 How to enter into the factory model 1. You can press "source-2-5-8-0" to go into factory setting. Presse the key "exit" to shut the factory setting.

  • Page 55: How To Update Software

    Service Manual Model No.: 8.2 How to update software Haier 6308N upgrade with USB SOP Step 1: Ready for F/W Upgrade 1.1 Prepare a USB memory . 1.2 Copy the software file (merg.bin) from your computer to the USB memory, and remove it from computer’s USB port!

  • Page 56: How To Enter Into The Hotel Model

    Service Manual Model No.: 8.3 How to enter into the hotel model 1. You can press "source-1-0-0-1" to go into the hotel model. Presse the key "exit" to shut the hotel model. Content: 1.Hotel Mode: Hotel mode switch 2.Max Volume : Max volume limit. After setting, the max Volume of any channel is the volume you set in this setting.

  • Page 57: Trouble-Shooting

    Service Manual Model No.: 9. Trouble shooting 9-1. Simple check - 54 -...

  • Page 58: Main Board Failure Check

    Service Manual Model No.: 9-2. Main board failure check No picture but have sound Check if Blacklight is test if Q46_C（5V）、 Replace Q43 or shine Q45_C（5V）is normal Check if there is +12V at Pin35 in X21 Replace Power Replace Board Blacklight Replace the module...
  • Page 59 AV No sound but have picture Check if there is sound input signal Check the P8 JACK Check if there is signal at C222and C223 Check if there is signal at L201 and L202 Replace U201 Check HEADPHONE have sound Check P1402 JACK Check the speakers Change Mainboard...
  • Page 60 No sound No picture NO LED indicate Check J20(5VSB) Change Power Board Check J20 ON/OFF High? Remote ON Change Power Board Check J20(5V 12V) Change U104 U201 U104(3.3Vsb) Check Change U109 U501 U201 Check C512 (1.18V) CE38(1.5V) Check U110 (3.3V) Change U110 Check Y201(24MHz) Change Y201...
  • Page 61 Poor sound Poor sound Verify if sound system is Change sound  correct . Input Change L(L16 L25 L18 L19) Change Speaker is OK? For ease of use, recommend that customer format the picture and sound Change Amplifier (N16) settings in the automatic option. Change MainBoard Still having ...
  • Page 62 No color for some channel program (black and white) No color for some channel program (blac k and white) Verify if the same Check out of picture and sound  problem exists in other system of this channel channels Change the channel to the right sound  check out of picture and sound system system (PAL‐D/K ) Refer to relative Change TDA18275(U1004) instructions in the...
  • Page 63 How to know whether the Power board is broken? Check 5VSB is ok take on/off to High then Power Board is broken check 5V/12V is ok Take blacklight control(sw,adj) to high,then check blacklight is shine? Power Board is ok,pls theck mainboard Still having  Check if Main board / LVDS wire / Panel are in  problems good condition ?
  • Page 64 Trouble Shooting • Mainboard not work Panel not work  • 1. Check the “power board “ in  1. Check the LED Back light “set‐up IC ”   main‐board whether has 12V and  output and input  are working . 5V 5vsb output . 2.Verify if the Mainboard output the   • 2.Verify if the DC/DC convertors  right On/Off signal to power board;  have the right output (1.18V,1.5V) 3.Verify if the Mainboard output the   • 3.Verify if LDO have the right  LVDS singal to panel T‐con board output (3.3V,1.2V) 4.Verify if the software is the right   • 3.Verify if the  version of this model. Mainchip(MSD6308RTEM), DDR,  5.Change the LVDS wire to check if it’s   AudioAMP…solder well; broken. • 4.Verify if the FLASH(U1202) has  the right software and work well; •...
  • Page 65 Trouble Shooting Power board not work  1.Verify if the power cord connect 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 power board Check if Main board / LVDS wire / Panel   are in good condition ?

  • Page 66: Panel Failure

    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 67 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 68 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 69 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 70 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 71 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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