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Hisense LCD32V88AM 2 Service Manual

Liquid crystal display television
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Liquid Crystal Display Television
Service Manual
Chassis： MST6E16JS
e：
Product Typ
LCD32V88AM(2)&LCD32V88AM(3)
Ver 1.0
Hisense Electric Co.，Ltd.
November， 2011

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Summary of Contents for Hisense LCD32V88AM 2

  • Page 1 Liquid Crystal Display Television Service Manual Chassis： MST6E16JS e： Product Typ LCD32V88AM(2)&LCD32V88AM(3) Ver 1.0 Hisense Electric Co.，Ltd. November， 2011...

  • Page 2: Table Of Contents

    Contents Contents................................- 2 - Service Manual ..............................- 3 - 1. Precautions and notices..........................- 3 - 1.1 WARNING ............................- 4 - 1.2 NOTES ............................- 7 - 2. Factory/Service OSD Menu and Adjustment...................- 10 - 2.1 To enter the Factory OSD Menu ....................- 10 - 2.2 Factory OSD Menu........................- 10 - 3.

  • 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

    Accordingly, a serviceman that uses a service procedure or tools, which are not recommended by Hisense, must first satisfy himself thoroughly that neither his safety nor the safe of the equipment will be jeopardized by the service method selected.
  • Page 5 1.1.2. All ICs and many other semiconductors are susceptible to electrostatic discharges (ESD). 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.
  • Page 6 cable clamps. -The insulation of the mains lead should be checked for external damage. 1.1.6 (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

    (7) Do not pull out or insert the power cable from/to an outlet with wet hands. It may cause electric shock. (8) Do not damage or modify the power cable. It may cause fire or electric shock. (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.
  • Page 8 been turned off. • While the main power is on, do not touch any parts or circuits other than the ones 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.
  • Page 9 the original routing and fixing configuration when servicing is completed. All the wires are routed far away from the areas that become hot (such as the heat sink). These wires are 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.

  • Page 10: Factory/Service Osd Menu And Adjustment

    2. Factory/Service OSD Menu and Adjustment 2.1 To enter the Factory OSD Menu a. With factory RC (remote control) 1. Press “M” button and enter factory mode. 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 11 B CUT COUNTRY R DRV OPTIONS G DRV FACTORY INIT B DRV TEST PATTERN VERSION NON STANDARD LOGO ADC ADJUST NULL HISENSE Only in component and VGA WELCOME SOURCE ,The “ ” ADC Adjust Can be chosen. - 11 -...
  • Page 12 OPTION FACTORY INIT SOURCE QINGDAO TOFAC HUANGDAO HUNGARY STARTUP MENU 1 FRANCE Search Sensitive 1 AUSTRALIA RF NTSC CLEAR PROTECTLY HDCP OUT OR IN 1 CLEAR UNPROTECTLY TEST PATTERN VERSION TEST PATTERN NUL VERSION PANEL TYPE FLASH 2.2.2、Design Menu - 12 -...
  • Page 13 DESIGN MENU PICTURE MODE SOUND MODE PICTURE CURVE AUDIO CURVE SSC SETTING SAVING MODE PICTURE MODE SOUND MODE MODE STANDARD MODE USER BRIGHTNESS 120HZ CONTRAST 500HZ COLOUR 1.5KHZ 5KHZ 10KHZ PICTURE CURVE AUDIO CURVE MODE BRIGHTNESS MODE VOLUME CURVE 0 CURVE 0 CURVE 25 CURVE 25...
  • Page 14 SSC SETTING SAVING MODE DDR SSC DDR MCM LVDS SSC LVDS PCM Note ： The above “Factory/Service OSD Menu” are reference only, please refer to the actual units to determine the appearances. - 14 -...

  • Page 15: Software Upgrading

    3. Software Upgrading Before upgrading, read the following. 1、Before upgrading，Write down the ADC Calibration values of the channel of VGA and component。 2、Upgrade the software. 3、To clear the EEPROM . A Select the item “Clear Unprotected”. B Press VOL+ button to clear the EEPROM data. C Close the OSD menu after 5 seconds.
  • Page 16 Choose “system”option from the “control panel” Click the “system” icon as the following Choose the “hardware” option from the dialog window - 16 -...
  • Page 17 Click“device management” icon as the following Choose the port (COM and LPT1) - 17 -...
  • Page 18 Choose the ECP print port (LPT1） Click the port of print （LPT1）as the following - 18 -...
  • Page 19 Choose “port setting”option as the following - 19 -...
  • Page 20 Find the folder where the ISP_TOOL4.0.9 lies in. 2、 There are three folders/files in this folder together. DLPORTIO.dll and FTD2XX.DLL must be in the same folder Double click the ISP_TOOL4.0.9 icon, and then a dialog window will show as below. - 20 -...
  • Page 21 Click the Config button. And then a dialog window will show as below. Port Type setting is LPT1 Base Addr setting is 0x378 Draw on the front of “pin 1 switch UART/I2c” Speed setting is 99 As following Choose“SDA in”and setting “PIN” is “PIN10”。 Notes: Do not draw on the front of “Reverse High”。...
  • Page 22 Choose “SCL in”and setting “PIN” is “PIN11”。 Notes: Do not draw on the front of “Reverse High”。 As following Choose “SDA out”and setting “PIN” is “PIN4” Notes: Draw on the front of “Reverse High”。 As following。 Choose “SCL out”and setting “PIN” is “PIN2” Notes: Draw on the front of “Reverse High”...
  • Page 23 After having finished all above, clicking the “Apply ”button to complete the configuration。 3.1.2 Hardware connecting You can update the software through a special tool (as following) Connect the Debug board to the TV use VGA interface, the other parallel port to the - 23 -...
  • Page 24 computer, just as the following。 - 24 -...

  • Page 25: Upgrading With The Isp_Tool4.0.9

    3.2 Upgrading with the ISP_TOOL4.0.9 3.2.1 Double click the ISP_TOOL4.0.9 icon and a dialog window will show as following。 Click the“Read ”button。 - 25 -...
  • Page 26 Choose the update file from the folder。 - 26 -...
  • Page 27 The update file has been chosen successfully。 Click the“Auto”button and choose parameters as following。 Click the“Run”button Click the“connect”button,then show a dialog box as following。 - 27 -...
  • Page 28 If show above then click the“Run”button again and again，till show the following dialog window。 - 28 -...

  • Page 29: Usb Software Upgrading

    The above appears on the screen-the word “program ok”shows in the information displaying window,indicating upgrading is over。 3.2.2 After the update is over. Must Confirm the software Version in the Version Menu. If the update is successful, enter Factory Init Menu and select “Clear Unprotectly” a.
  • Page 30 3.3.2    the “Function” Menu “Software Update” choose “on” ， see the next figure。       3.3.3 AC power off, then restart the TV.        - 30 -...
  • Page 31         - 31 -...
  • Page 32   3.3.4 After update success, AC power off, and restart the TV.  If only appear the figure: “ Binary file detecting” ， the last three figures not. Please modify the  name of sotrware.  3.3.5、 After the update is over. Must Confirm the software Version in the Version Menu. If the update is successful, enter Factory Init Menu and select “Clear Unprotectly” d. Press VOL+ button to clear the EEPROM data. e.
  • Page 33   3.3.6、Chasis MST6E16 includes 6E16GS and 6E16JS Chassis 6E16GS must be the last 8 bit figures and letters in front ot .bin For example : LCD19W58AM(30) named D19W58AM.bin. Chassis 6E16JS must be the TV name in front of.bin. For example : LCD19W58AM(30) named LCD19W58AM.bin.

  • Page 34: Circuit Instruction

    4. Circuit instruction 4.1 Main board Power assign and block diagram Power assign: The Powerd only has 12V output ，other voltages are converted from 12V. a. 5Vstb is converted by U10 from 12V，5VAIN and +5V_USB are converted by U7 from 5Vstb. b.

  • Page 35: Image And Signal Process

    4.2 Image and signal process - 35 -...
  • Page 36 TPA3101D2 e. RF Signal RF Signal pass Tuner(U22) and surface acoustic wave filter(U23、U25) then output SIF and VIF signal, which input to the main IC to have convert. TPA3101D2 AV Signal The video signal of AV input from terminal XS2，last enter the pin 37 of U41. as following The CVBS video signal of SCART input from terminal XS39, last enter the pin35 of U41.
  • Page 37 The YC video signal of S-Video input from terminal XS31, last enter pin 32、33 of U41. as following The RGB video signal of SCART input from terminal XS39, Ypbpr video signal of SCART input from terminal XS7. The two signals pass U30 (IC\P15V330Q), then enter pin17-20 of U41. last pass XP11/J2 directly output to the Panel - 37 -...
  • Page 38 PC（VGA）signal input from Terminal XS39, after having converted,. last enter the pin 22、24、 25、26 of U41. Audio signal of HDMI and USB directly input IC U41. Output of Scart (owning to have CANAL+ function , only output RF Signal)which by Pin 40 of U41, As the following amplified circuit..
  • Page 39 Audio XS7 （YPbPr and VGA mutual the channel） Audio XS2 （AV and SV mutual the channel） 2. Control Process： The Power only has 12V output ，other voltages are converted from 12V. U4 and U7 can interrupt other voltages while standby, only reserve standby 5V. as following. When TV Power on , Standby Signal is High level, 5VAIN Power suppluy normally ;...
  • Page 40 The video input signal of SCART RGB and Component was converted by U30, controlled by AU-SW0 signal. According current signal choose one channel output from 4、7、9 of U30 The control method as following: Current channel AU-SW0 Switch output signal Component Low level Component YPbPr SCART...
  • Page 41 SCART High level SCART RGB The main control signal, as list: Internet mark Control Signal recommend Remark STANDBY PW_CTL pass V1、V26 Standby signal（Power High level power on inverse phase control） PW_CTL High level power on BL-ON/OFF ON_PBACK pass V2 High level power on BL-control inverse phase ON_PBACK...

  • Page 42: The Main Ic Description

    Key “1” Key1-in Remote control signal IR-SYNC 4.3 The main IC description 74HC4052D： - 42 -...
  • Page 43 - 43 -...
  • Page 44 AOZ1021 - 44 -...
  • Page 45 RF7314 - 45 -...
  • Page 46 - 46 -...
  • Page 47 MP1482 - 47 -...
  • Page 48 TPA1517 - 48 -...
  • Page 49 - 49 -...

  • Page 50: Troubleshooting

    4.4 Troubleshooting 4.4.1 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 51 4.4.2 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 - 51 -...
  • Page 52 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 - 52 -...
  • Page 53 4.4.4 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 - 53 -...
  • Page 54 4.4.5 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 - 54 -...
  • Page 55 4.4.6 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 - 55 -...
  • Page 56 4.4.7 Troubleshooting for Video/S-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 - 56 -...

  • Page 57: Schematic Circuit Diagram

    5. Schematic circuit diagram - 57 -...
  • Page 58 C907 VB901 C903 C905 R901 T901 (EMC) C803 F801 RV801 RT801 C805 300v VD903 470u/16V L901 1WB60 4u7/450V 470P/1KV 100K/2W T6.3A/250VAC 10D561 NTC5D-20 474/AC275V 102/AC250V 5VS/1A 300V 1N5819 R801 C908 VB801 C807 XP801 L801 270k L802 100u/16V N901 102/2KV VD901 LINK564 R802 C808...
  • Page 59 HIGH NORMAL TO Inverter Board LOW STANDBY Power_Main Power_Main 5Vstb STANDBY STANDBY STANDBY STANDBY STANDBY STANDBY STANDBY 4.7K 4.7K R226 0R/NC R226 0R/NC 5VAIN 5Vstb 5Vstb R227 0R R227 0R 5VAIN BL-ON/OFF R203 R203 BL-ADJUST PW_CTL +12V 4.7K 4.7K 0R/NC 0R/NC R183 R183...
  • Page 60 MST6E16GS L48=FB,U6=NC MST6E16JS L48=NC,U6=1117 NC/AMS1117-3.3 NC/AMS1117-3.3 1084-3.3 1084-3.3 AMS1117-ADJ AMS1117-ADJ 2.6V for MST6M16 and DDRAM +3.3Vstb for VDDP_PM +3.3AVDD +3.3Vstb +2.6VM +3.3Vstb VDDP_PM NC/FB NC/FB 5VAIN 5VAIN C385 C385 C386 C386 5Vstb 0.1uF 0.1uF 2.2uF 2.2uF 0.1uF 0.1uF 2.2uF 2.2uF C384 C384 C374...
  • Page 61 5Vstb +3.3Vstb +5V_USB R707 R707 R102 R102 NC/4.7K NC/4.7K EEP_Vcc EEP_Vcc EEP_Vcc EEP_Vcc EEP_Vcc EEP_Vcc R224 0R R224 0R +3.3Vstb BAV99 BAV99 USB1_OC_DET R104 R104 4.7K 4.7K 5Vstb +3.3Vstb R220 NC R220 NC 5Vstb C306 C306 100K 100K C207 C207 R701 R701 0.1uF...
  • Page 62 XS33 XS33 HDMI_1 HDMI_1 HDMI2-RX2+ INPAQ_VPORT INPAQ_VPORT HDMI2-RX2+ R182 R182 HDMIA-RX2+ DATA2+ HDMIA-RX2+ 3 HDMI2-RX2- R184 R184 HDMIA-RX2- DATA2 SHIELD HDMIA-RX2- 3 HDMI2-RX2- INPAQ_VPORT INPAQ_VPORT HDMI2-RX1+ R190 R190 HDMIA-RX1+ HDMIA-RX1+ 3 DATA2- HDMI2-RX1+ INPAQ_VPORT INPAQ_VPORT HDMI2-RX1- R206 R206 HDMIA-RX1- 24C02=>EDID code must DATA1+ HDMIA-RX1- 3 GND1...
  • Page 63 5VAIN SCART1 RGB Input 5VAIN SC1_R VD129 VD129 SC1_R SC1_G R285 R285 R286 R286 R287 R287 BAV99 BAV99 SC1_G SC1_B SC1_B SC1_Gin SC1_G C354 2.2uF C354 2.2uF SC1_Gin VD130 VD130 SC1_B C355 2.2uF C355 2.2uF SC1_Bin BAV99 BAV99 SC1_R C357 2.2uF C357 2.2uF SC1_Rin SC1_Bin...
  • Page 64 5VPI VGA/5V 5VPI XS36 XS36 HDTV1 Input R113 R113 RXD0 RXD0 R156 R156 R157 R157 R219 R219 HDTV1 HDTV1 R111 R111 TXD0 TXD0 左 左 R143 R143 R144 R144 R145 R145 HD1_Y 绿 绿 VGA-B C361 2.2uF C361 2.2uF VGA-Bin HD1_Y C344 2.2uF C344 2.2uF...
  • Page 65 AV1 Input R229 R229 SV1-in SV1-in R299 R299 5VAIN XP5B XP5B AV6-W-2-HX AV6-W-2-HX VD125 VD125 C221 C221 左 左 NC/330pF NC/330pF SIGNAL 黄 黄 5VAIN R291 R291 C359 C359 C375 C375 RP36 RP36 RP35 RP35 10uF 10uF 10uF 10uF 中 中...
  • Page 66 5V-IF R289 R289 C300 C300 +12V 2.2uF 2.2uF R233 R233 5V and 12V for Tuner R236 R236 R237 R237 R238 R238 R317 R317 4.7K 4.7K 4.7K 4.7K 4.7K 4.7K R340 R340 R357 R357 C219 C219 4.7K 4.7K 4.7K 4.7K 10nF 10nF R297 R297...
  • Page 67 VZ705 10V/NC VZ705 10V/NC CA95 CA95 R713 R713 100uF/16V 100uF/16V R716 R716 NC/0R NC/0R +12V +12V R714 R714 VD111 VD111 R752 R752 NC/0R NC/0R 5Vstb VCC-AU VCC-AU VZ704 VZ704 BAV99 BAV99 R702 R702 R704 R704 VD110 VD110 R718 R718 R708 R708 10V/NC 10V/NC...

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