Hisense K15 Series Service Manual
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Hisense K15 Series Service Manual

Hisense K15 Series Service Manual

Chassis msd308px
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LCD Television
Service Manual
Chassis： MSD308PX
K15 Series
Ver 1.1
Hisense Electric Co.，Ltd.
September，2011

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Summary of Contents for Hisense K15 Series

  • Page 1 LCD Television Service Manual Chassis： MSD308PX K15 Series Ver 1.1 Hisense Electric Co.，Ltd. September，2011...

  • Page 2: Table Of Contents

    2. Product Specifications: ...........................- 10 - 2.1 Specification: ............................- 10 - 2.2 Main Board: ............................- 12 - K15 Series..............................- 12 - 2.3 Wiring Diagram: ...........................- 13 - 3. Factory/Service OSD Menu and Adjustment....................- 14 - 3.1 To enter the Factory OSD Menu ......................- 14 - 3.2 Factory OSD Menu..........................- 14 -...

  • Page 3: Service Manual

    WHEN REPLACEMENT PARTS ARE REQUIRED, BE SURE TO USE REPLACEMENT PARTS SPECIFIED BY THE MANUFACTURER. Proper service and repair is important to the safe, reliable operation of all Hisense Electric Co., Ltd Equipment. The service procedures recommended by Hisense and described in this Service Guide are effective methods of performing service operations.

  • Page 4: Warning

    Hisense, must first satisfy himself thoroughly that neither his safety nor the safe of the equipment will be jeopardized by the service method selected. Hereafter throughout this manual, Hisense Electric Co., Ltd will be referred to as Hisense. 1.1 Warning 1.1.1...
  • Page 5 Careless handling during repair can reduce life drastically. When repairing, make sure that you are connected with the same potential as the mass of the set by a wristband with resistance. Keep components and tools also at this same potential. 1.
  • Page 6 (1) Do not touch Signal and Power Connector while this product operates. Do not touch EMI ground part and Heat Sink of Film Filter. (2) Do not supply a voltage higher than that specified to this product. This may damage the product and may cause a fire.

  • Page 7: Notes

    (9) If the power cable is damaged, or if the connector is loose, do not use the product: otherwise, this can lead to fire or electric shock. (10) If the power connector or the connector of the power cable becomes dirty or dusty, wipe it with a dry cloth.
  • Page 8 specified. If any connection other than the one specified is made between the measuring equipment and the high voltage power supply block, it can result in electric shock or activation of the leakage-detection circuit breaker. • When installing the LCD module in, and removing it from the packing carton, be sure to have at least two persons perform the work.
  • Page 9 fixed in position with the wire clamps so that the wires do not move, thereby ensuring that they are not damaged and their materials do not deteriorate over long periods of time. Therefore, route the cables and fix the cables to the original position and states using the wire clamps.

  • Page 10: Product Specifications

    2. Product Specifications: 2.1 Specification: LHDN32K15/16CEU： - 10 -...
  • Page 11 LTDN24K15CEU： - 11 -...

  • Page 12: Main Board

    Main Board: K15 Series LVDS OUT DDR2（512M） Main （MSD308） DDR2（512M） Flash HDMI Earphone Digital Audio AMP SCART Y/Video PB PR PC Audio IN Note ： The above “Main board image”is only take LHDN32K15CEU for example, others please refer to the actual units to determine the boards.

  • Page 13: Wiring Diagram

    Wiring Diagram: LHDN 32K15CEU’’ Model Panel Mode LVDS(Main-Panel) LTDN24K15CEU M236H3-LA2\V236H1-LE2 HX2-2X20KLB400P-CMO\ROH LHDN32K15/K16CEU HE315DH-E02(S3)\ROH HX2-2×15KLB400P-HS-1\ROH LHDN32K15CEU(1) HE315DH-E06\S3\ROH Same to LHDN32K15 - 13 -...

  • Page 14: Factory/Service Osd Menu And Adjustment

    3. Factory/Service OSD Menu and Adjustment 3.1 To enter the Factory OSD Menu a. With factory RC (remote control) 1. Press “M” button and enter factory mode.(Note1) 2. Press “Menu” button and enter factory OSD menu. 3. Press “CH+”/“CH-” button select the function menu, press “VOL+”/“VOL-” enter the selected function menu.
  • Page 15 Function Factory Menu TO FAC : M or U White Balance Power Mode Save ADC Calibration Software Update Funtion LOGO: Hisense Lnit OSD language: English Test Pattern WDT: ON Version UART Debug : None Clear protectly Clear unprotectly White Balance...

  • Page 16: Software Upgrading

    4. Software Upgrading 4.1 Upgrading with the ISP_TOOL 4.1.1 Hardware connecting You can update the software through a special tool (as following) Connect the Debug board to the TV use VGA interface or the RS232 (4 pin), the other USB port to the compute.
  • Page 17 4、Click the” Config “button. And then a dialog window will show as below. Draw on the front of “Use USB” Port Type setting is USB Base Addr setting is 0x38C ISP Slave Address choose 0x92 Serial Debug Slave Address choose 0xB2， 5、Click the “Connect”button，if appear the following figure, It indicates that the ISP_TOOL has - 17 -...
  • Page 18 connected.(According to the tv set,”Device Type” maybe different.) If appear the following figure，It indicates that the ISP_TOOL has not connected. Please click the“DisCon”button and “Connect”button to connect.. 6、Click the“Read ”button，Choose the correct update file。 7、After the update file has been chosen successfully。 Click the“Auto”button and choose parameters as following。...
  • Page 19 8、Click the “Run” button and wait update end. If show any error message ，then do “Dis Con” >> “Connect”，and click the “Run” button again，till show the following dialog window。 - 19 -...

  • Page 20: Upgrading With The Usb

    4.2 Upgrading with the USB Software can update with USB device: 1. Copy the “*.BIN” file such as “MERGE.BIN” to the root directory of a USB disk. 2. Insert the USB disk into the USB slot of the TV SET. 3.

  • Page 21: Circuit Instruction

    5. Circuit instruction 5.1 Power assign and block diagram Power assign: The Power only has +12V_IN output ，other voltages are converted from +12V_IN. a. 5Vstb is converted by N19 from +12V_IN，5VAIN and 5V_USB are converted by N43 from 5Vstb. b. 3.3Vstb and 3.3V_mcu as standby power supply for standby mode. c.

  • Page 22: Image And Signal Process

    5.2 Image and signal process Panel TUNER (FH2610) LVDS POWER SUPPLY UNIT HS3611 SPEAKER(OUT) Amplyfier PCMCIA INTERFACE HDMI SIGNAL HDMI USB INPUT MSD308PX AUDIO OUT HDCP INFO EARPHONE OUTPUT HDCP BUS(DATA,ADDRESS) REMOTE INFUT SIGNAL REMOTE CONTRAL INPUT BUS(DATA,ADDRESS) FLASH EEPROM VIDEO INPUT(YPbPr and SCART(CVBS and RGB IN VGA INTERFACE...
  • Page 23 XS13 R862 左 HD1_Y/AV SIGNAL1 绿 SIGNAL3 R861 中 HD1_Pb HD1_Pb SIGNAL4 蓝 SIGNAL6 R860 右 HD1_Pr HD1_Pr HD1_Pr HD1_Pr HD1_Pr HD1_Pr SIGNAL7 红 RV105 SIGNAL9 RV98 RV99 C214 R345 C207 R350 C208 R399 ASES12U020R2/NC ASES12U020R2/NC ASES12U020R2/NC 560p/50V/NC 560p/50V/NC 560p/50V/NC The CVBS video signal of SCART input the Terminal of XS7, then enter U46.
  • Page 24 SCART_CVBS_in R863 CVBS0 CVBS0 2 R504 RV31 0R/NC C339 C336 AVLC18S02015 220p/50V/NC 220p/50V/NC R254 Scart Audio AUL_AV1 AV1_AUL AV1_AUL RV36 R255 AVLC18S02015 R259 AUR_AV1 AV1_AUR AV1_AUR 2 RV37 R236 AVLC18S02015 c) VGA Signal PC（VGA）signal input from XS24 , later enter U46 . XS24 UART-T VGA_RIN+...
  • Page 25 d) The HDMI and USB signals directly input U46. e) SCART CVBS output from U46 pass through the following amplified circuit .output from XS7 SCART_CVBS_out 5VAIN R208 BLM18PG181SN1 C194 R246 R256 MMBT3906LT1 100n/25V 330R C831 0R/NC CVBSOut CVBSOUT 2 C830 R204 R243 AV_OUT...
  • Page 26 5Vstb C803 C713 R758 10u/16V C715 100n/16V R720 1u/16V 5VAIN 5Vstb V710 R713 5VAIN PWR-ON IRF7314AO4801/3 C804 MMBT3904LT1 4.7k 100u/16V +12V VCC-A FB1206 VCC-A 1 +12V_IN 100u/25V C801 C805 C712 R723 100n/25V C718 10u/25V +12V_IN 1u/25V R722 +12V V712 R724 PWR-ON MMBT3904LT1 4.7k...
  • Page 27 I2C master. for example :search channels , save the customer setting.and the operation of IR and Keypad. Also can receive information from the EEPROM (N5 AT24C32N) EEPROM 0:Write Enable 1:Write Disable 33V_Normal R164 EEP_VCC R161 R162 R173 C151 C177 100R 100n/25V 10u/16V 4.7k...

  • Page 28: Troubleshooting

    5.3 Troubleshooting 5.3.1 Troubleshooting for Remote Control Remote control does not work Try new batteries Replace battery Replace RC Replace remote control Check IR receiver Change Led & IR board Replace Led & IR BD Change Led & IR cable Replace Led &...

  • Page 29: Troubleshooting For Function Key

    5.3.2 Troubleshooting for Function Key Buttons does not work Check solder connections and Check switches see if any switches are stuck. Replace Key BD Check key board Check Key BD cable Change Key BD Replace main board - 29 -...
  • Page 30 BD or Keypad one works Try Power on by RC and Button Check signal Panel Bright Source Neither Both works Work Replace Main Replace Main BD Power on Replace Panel (to contact Hisense tech support.) Replace Power BD - 30 -...

  • Page 31: Troubleshooting For Audio

    5.3.4 Troubleshooting for Audio No sound Reconnect Check connecter Replace speaker wire Check speaker wire Replace speaker set Check speaker set Replace main board Power Supply Board - 31 -...
  • Page 32 5.3.5 Troubleshooting for TV/VGA/HDMI input No picture on the screen Check Signal Source Make sure signal source is available Reconnect Check connect Replace cable Check cable Replace main board - 32 -...

  • Page 33: Troubleshooting For Ypbpr Input

    5.3.6 Troubleshooting for YPbPr input No picture on the screen Check Source work or not Check Source Device Reconnect Check connect Check Wires (Green Blue, Red) Replace wires Replace main board - 33 -...
  • Page 34 5.3.7 Troubleshooting for Video input No picture on the screen Check Source work or not Check Signal Source Reconnect Check connect Replace Cable/Wires Check Cable/ Wires Replace main board - 34 -...

  • Page 35: Explode View

    6. Explode View 7. Schematic circuit diagram - 35 -...
  • Page 37 LTDN24K15CEU Description Qty. Code Number Remark Front bezel RSAG8.074.896\FB2\V0\ROH\X0 RSAG8 640 0213\ROH RSAG8.640.0213\ROH Led Lens Led Lens RSAG2.908.4193-03\ROH IR Board Bracket RSAG8.038.2452\ROH M236H3-LA2\V236H1-LE2\GS\JK\ROH LCD Panel RSAG2.908.2256-52\ROH Power Board Bracket RSAG8.078.937\ROH\X0 RSAG2.908.1962\ROH Keypad PCA (wit Bracket RSAG8.078.938\ROH\X1 SJ2825-87 ST3X12C黑色\ROH\STD Screw Bracket Bracket RSAG8 078 932\ROH\X0 RSAG8.078.932\ROH\X0...
  • Page 38 Bracket RSAG8.038.2453\ROH Bracket RSAG8.038.2485\ROH...
  • Page 40 LHDN32K15CEU Parts List Code Number Note Description HE315DH-E02 LED panel Front bezel is fixed with panel. RSAG2.908.4258 main board fix with 3 screw\SJ2836-87 M3X8 white and 1 screw\SJ2831-87 ST3X8. Terminal RSAG8.081.1039 Bracket RSAG8.640.0203 lens RSAG2.908.2310-52 IR Board fix with 2 screw\SJ2825-87 ST3X10C black. VIT3010-8W8Ω-01 VIT3010 8W8Ω...
  • Page 41 HF-606(TV)-P通PS8-12-D- Power Switch 047B RSAG8.078.820 bracket fix to front bezel with screw\SJ2822-87 ST3X10C black. 16 16 RSAG8.078.938 bracket fix with 2 screw\SJ2836-87 M3X8 white. RSAG8 078 937 RSAG8.078.937 bracket RSAG2.908.1962 Keypad PCA fix to panel with 4 screw\SJ2836-87 M4X8 white,fix to Rear Cover fix to panel with 4 screw\SJ2836 87 M4X8 white,fix to Rear Cover 8（1）...
  • Page 42 背光控制 +12V_IN 5VAIN +12V_IN R330 R330 R333 R333 R143 R143 4.7k/NC 4.7k/NC 4.7k 4.7k 4.7k 4.7k BL-ON/OFF 0R/NC 0R/NC BL-ADJUST MMBT3904LT1 MMBT3904LT1 R334 R334 ON_PBACK BRI-EXT 4.7k 4.7k ON_PBACK BRI-EXT MMBT3904LT1 MMBT3904LT1 BL-ADJUST BL-ADJUST 9 ADJ-PWM2 R145 R145 Inverter 0R/NC 0R/NC ADJ-PWM2 10k/NC...
  • Page 43 5Vstb 5Vstb C803 C803 C713 C713 R758 R758 10u/16V 10u/16V C715 C715 100n/16V 100n/16V R720 R720 1u/16V 1u/16V 5VAIN 5Vstb V710 V710 R713 R713 R966 R966 R1218 and R1216----AAM 5VAIN PWR-ON 10k/NC 10k/NC 更换2380为NB637 C804 C804 MMBT3904LT1 MMBT3904LT1 IRF7314AO4801/3 IRF7314AO4801/3 +12V_IN 4.7k 4.7k...
  • Page 44 R533 R533 DDC_SCL 0R/NC 0R/NC R218 R218 UART-R UART-RX VGA_BIN+ 100R 100R VGA_BIN+ 2 VGA_GIN+ VGA_GIN+ 2 VGA_RIN+ VGA_RIN+ 2 RV117 RV117 RV75 RV75 RV76 RV76 R235 R235 R493 R493 R528 R528 AVLC18S02015 AVLC18S02015 AVLC18S02015 AVLC18S02015 AVLC18S02015 AVLC18S02015 R527 R527 UART-T UART-TX R534...
  • Page 45 5VAIN 5VAIN R950 R950 4.7k 4.7k C930 C930 R951 R951 MMBT3904LT1 MMBT3904LT1 HDTV-1 YPbPr INPUT 22u/6.3V 22u/6.3V CVBS1 CVBS1 2 5VAIN 0R/NC 0R/NC YPBPR AND AV INPUT INPUT, AUDIO 共用， R801 R801 220R 220R 更改为立式插座。 R952 R952 C931 C931 4.7k 4.7k XS13 XS13...
  • Page 46 R735 R735 PH-Lin PH-Lin 470R/NC 470R/NC C891 C891 100u/16V/NC 100u/16V/NC C707 C707 GND_17 SGND GND_16 VCC-A R734 R734 C709 C709 2.2u/10V/NC 2.2u/10V/NC SVRR GND_15 OUT1 GND_14 PH-Rin PH-Rin VCC-A 1 PGND GND_13 OUT2 GND_12 470R/NC 470R/NC 2.2u/10V/NC 2.2u/10V/NC GND_11 M_SB GND_10 C708 C708...
  • Page 47 N46D N46D MSD309PX MSD309PX N46E N46E MSD309PX MSD309PX LVDS LVDS CVBS CVBS C484 C484 C488 C488 VCC-Panel R619 R619 R907 R907 C481 C481 C489 C489 R615 R615 R908 R908 PWM0 LVB0P CVBS0 AB25 AC24 C485 C485 PAD_PWM0 PADA_OUTP_CH[6]_PAD_R_ODD[7]__1 PADA_RIN0M PADA_CVBS0 CVBS0 R909 R909...
  • Page 48 1.8VA N46F N46F MSD309PX MSD309PX VDDC MA_DQM1 VDDC1.2V_4 MA_DQM0 VDDC1.2V_5 MIUA_DQS0 MA_DQS0 MIUA_MCLK MA_MCLK VDDC1.2V_6 N46A N46A MSD309PX MSD309PX MIUA_DQS0B MA_DQSB0 MIUA_MCLKZ MA_MCLKZ MA_DQS0 A_MVERF VDDC1.2V_31 GND_179 LDQS VREF MA_DQSB0 MA_CKE VDDC1.2V_32 GND_180 LDQS# MA_DQS1 VssQ VssQ UDQS# VddQ UDQS# VddQ MA_MCLK VDDC1.2V_33 GND_178...
  • Page 49 HDMI1（下面） R163 R163 R245 R245 HDMI0-RX2+ HDMI0-RX2P 2 HDMI0-RX2- R261 R261 HDMI0-RX2N 2 DC1R019JB1 DC1R019JB1 RV100 RV100 R225 R225 HDMI0-RX1+ HDMI0-RX2+ HDMI0-RX1P 2 DATA2+ RV39 RV39 HDMI0-RX1- HDMI0-RX1N 2 DATA2S ASES12U020R2/NC ASES12U020R2/NC RV129 RV129 HDMI0-RX2- R265 R265 DATA2- HDMI0-RX1+ R263 R263 DATA1+ ASES12U020R2/NC...
  • Page 50 SCART_RGB SCART_CVBS_in R863 R863 SC-G CVBS0 CVBS0 2 R504 R504 RV31 RV31 SC-B 0R/NC 0R/NC PB1+ C339 C339 C336 C336 AVLC18S02015 AVLC18S02015 220p/50V/NC 220p/50V/NC 220p/50V/NC 220p/50V/NC SC-R PR1+ RV74 RV74 RV87 RV87 RV64 RV64 R509 R509 R511 R511 R510 R510 AVLC18S02015 AVLC18S02015 AVLC18S02015...
  • Page 51 5VAIN 5VAIN R308 R308 +12V 靠近Tuner放置 ANT_5V_OUT R303 R303 Ant_Pwr 300R 300R T_RF_AGC 300R 300R RF AGC C346 C346 C219 C219 2.2u/10V 2.2u/10V 10n/50V 10n/50V R425 R425 R283 R283 R285 R285 LGA0305-0u82-K LGA0305-0u82-K C230 C230 R272 R272 4.7k 4.7k 680R 680R AGND C220...

  • Page 52: Headphone Jack

    C832 220u/25V C832 220u/25V R137 R137 5Vstb 5Vstb Mute Circuit 24寸用C832,32寸用C820 +12V Headphone out +12V C232 C232 R423 R423 47k/NC 47k/NC VCC-A R147 R147 VCC-A R400 R400 C409 C409 R180 R180 OPAVREF C355 C355 R149 R149 R407 R407 120pF 120pF C820 C820 +12V...

  • Page 53: Usb Input

    5VAIN 5VAIN Power for USB L888 L888 5VAIN +5V_USB 5V_USB STPB2012-121PT STPB2012-121PT C120 C120 STPB2012-121PT STPB2012-121PT AO4459 /NC AO4459 /NC 4.7k/NC 4.7k/NC 1u/16V 1u/16V C115 C115 100u/16V 100u/16V 100n/16V 100n/16V C817 C817 ON_USB 2 MMBT3904LT1 /NC MMBT3904LT1 /NC C114 C114 4.7k/NC 4.7k/NC 1u/16V/NC...

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