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Sanyo LCD-32XR8DA Service Manual
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Sanyo LCD-32XR8DA Service Manual

Sanyo LCD-32XR8DA Service Manual

Sanyo lcd tv service manual
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Summary of Contents for Sanyo LCD-32XR8DA

  • Page 2: Table Of Contents

    CONTENTS Safety precautions………………………………………………………………………..… Alignment instructions and method of software upgrading……………………………… Working principle analysis of the unit……………………………….………….…………. Block diagram…………………………………..………………………………….………… IC block diagram………………………………………………………………………..…… Wiring diagram ……………………………………………………………………………. Troubleshooting guide ………………………………………………………………..…… Schematic diagram………………………………………………………………………… APPENDIX-A: Assembly list APPENDIX-B: Exploded View...

  • Page 3: Safety Precautions

    Attention: This service manual is only for service personnel to take reference with. Before servicing please read the following points carefully. Safety precautions 1. Instructions Be sure to switch off the power supply before replacing or welding any components or inserting/plugging in connection wire Anti static measures to be taken (throughout the entire production process!): a) Do not touch here and there by hand at will;...
  • Page 4 would be unable to work and no way to get it repaired. If the connection wires, connections or components fixed by the thermotropic glue need to disengage when service, please soak the thermotropic glue into the alcohol and then pull them out in case of dagmage.

  • Page 5: Alignment Instructions And Method Of Software Upgrading

    Alignment instructions 1. Test equipment VG-848 (YPbPr,VGA signal generator) VG-849 (HDMI signal generator) CA210 (white balancer) 2. Power test Connect data processing board, power board and IR board according the wiring diagram, connect the power and press “standby” button to turn on the TV. a) Test the pin voltage of X802, the data is shown in table1: Table1 voltage data of X802 X802...
  • Page 6 Input AV/SVIDEO/SCART signal and check the function Input HD signal and check the function of YPbPr Input VGA signal and check if the display is normal, check the function (analog control), horizontal/vertical center, etc. Input HDMI signal and check if the display is normal, check the function (analog control), horizontal/vertical center, etc.
  • Page 7 “Channel” menu and the operation needs 15s or so. o) MST Debug, the default is OFF. OFF---RS-232 should match the design criterion; ON--- it should be convenient for using exploitation tool to adjust. The setting will not be memory and will be “OFF”...
  • Page 8 (272,278). f) Fix G OFFSET, adjust R OFFSET, B OFFSET and let the color coordinate of the third scale be (272,278). g) When adjusting, please keep the color temperature of high light to be X=272±5, Y=278±5 and the low light to be X=272±8, Y=278±8. h) Move the cursor to “COPY ALL”...
  • Page 9 1920X1080 67.5 59.94 148.35 1080p(59p) 1920X1080 67.5 148.5 1080p(60p) 1920X1080 56.25 148.5 1080p(50p) 1920X1080 23.94/24 1920X1080 1920X1080 29.97/30 5.4 VGA terminal Input VGA signal (VG848 signal generator), separately input the signals listed in table5 and check the display and sound. If the image is deflection of the Horizontal and vertical, select Picture->Screen->Auto Adjusting to perform auto-correct.
  • Page 10 f) Check logical channel number (LCN) for France, UK and Italy. g) Check OTA function for Australia special custom. 6. Presetting before ex-factory Enter user menu LOCK page, select “Restore Factory Default” to preset the ex-factory. a) Clear the program information. b) Clear VCHIP, parental control, etc.
  • Page 11 Fig2 Device EN25B52 successful connection Click “Read” and select the file written (MERGE.bin for example) as shown in fig3. Fig3 the written file Click “Auto”, select “All chip” , “program” and other items as shown if fig4. Fig4 selected items Press “Run”...
  • Page 12 Fig5 Repeat step 2) and 5) to write the program to the other units without exit the ISP interface. Note3: software writing and upgrade method with USB port Make sure the USB device is formatted as FAT32. Copy the program named Merge.bin to USB device. Insert the USB device to USB port of the unit, power on and select RF-ATV channel, begin USB upgrade after OSD disappear.

  • Page 13: Working Principle Analysis Of The Unit

    Working principle analysis of the unit 1. PAL/SECAM signal flow: Antenna reception PAL/SECAM signal will be send to tuner TDA1616, which contains frequency turning, HF and IF amplifier circuit and is controlled by master control IC MSD109 (comprises CPU) through I2C bus. The analog IF signal via intermediate frequency amplifying, video SAW filter K3953 and audio SAW filter K9656 to input to analog demodulate IC (IF) R2A10406NP, after demodulating and output standard video signal TV-CVBS and sound IF signal (SIF).

  • Page 14: Block Diagram

    amplifier BH3547F amplifying, then output two ways. One way will be sent to earphone, another way will be sent to digital sound amplifier R2A15112FP amplifying then sent to speaker. 5. HDMI signal flow Three HDMI video signals via switcher PS321 are directly fed to the master control IC MSD109 to digital decode, image scale and OSD superposition, then output LVDS drive level for panel display.

  • Page 15: Ic Block Diagram

    IC block diagram 1. MSD109CL Twin-turbo 8051 MCU Supports multi-path TS stream input Two paths TS stream output, integrated switch selection Supports both serial and parallel TS stream input Maximum TS data rate is 104Mbps for serial or 13MB/sec for parallel MPEG-2 audio decoder MPEG-1, MPEG-2 (Layer I/II) and Dolby1 Digital(AC-3) audio decoder MPEG-4 decoder...
  • Page 16 2. CE6353 The chip comprises 8MHz bandwidth SAW and supports demodulation of 6MHz, 7MHz and 8MHz, 2K/8K carrier and supports both serial and parallel TS stream output. 3. R2A10406NP *VIF frequency corresponds to 38.9MHz. *SIF frequency corresponds to M/N,B/G,I,D/K and SECAM L,L'. *I2CBUS control.
  • Page 17 4. PS321 The chip supports both I2C control and I/O control mode; supports both internal and external EDIT. 5. R2A15112FP...
  • Page 18 6. TDA1616...

  • Page 20: Wiring Diagram

    Wiring diagram...
  • Page 21 Trouble shooting 1. Fault clearance Before servicing please check to find the possible causes of the troubles according to the table below. 1.1 Antenna (signal): Picture is out of focus or jumping Bad status in signal receiving Poor signal Check if there are failures with the electrical connector or the antenna.
  • Page 22 crystal TV set and make proper adjustment according to the signal types. Picture too bright and there is Check if the contrast setting is too high. distortion in the brightest area Possibly the output quality of DVD broadcaster is set too high.

  • Page 23: Troubleshooting Guide

    2. Troubleshooting guide 2.1. No raster Turn-on power supply, check if the red indicator is light in the STANDBY? Check if 5VSTB of X802 9# Press POWER button on the on main board is normal? unit or sensor control and check the indicator.
  • Page 24 2.2. Backlight, but no picture Check if the unit button Does display remote control menu on screen when operation? press menu button? Check if all channels have no signal? Enter factory-menu, Replace main initialization EEPROM, board then turn off the TV, turn on again, display picture? Replace...
  • Page 25 2.3 Picture, but no sound Check if NV02 pin4, Is there sound in Replace Check NV02 5, 32, 33 are 24V? earphone? NV02 pin10, 27 are high voltage? Check power Check If NS01 pin126, 148 Is there sound when supply power audio output are low voltage?

  • Page 26: Schematic Diagram

    data process...
  • Page 27 data process...
  • Page 28 data process...
  • Page 29 data process...
  • Page 30 data process...
  • Page 31 data process...
  • Page 32 data process...
  • Page 33 data process...
  • Page 34 32" power...
  • Page 35 42" power...
  • Page 36 IR, key...
  • Page 37 APPENDIX-A: Main assembly LCD-32XR8DA MAIN COMPONENT AND IT'S NO. NAME NS01 MSD109CL (5270109001) N101 R2A10406NP (5271040601) Data processing board XI6HE0086910 NJ01 CE6353 (5276353001) PS321TQF (5270321001) NV02 R2A15112FP (5271511201) IR board XI6HU0310910 Key board XI6HU0310510 Power board XI6HU0212010 RC-J17-0A Remote control...
  • Page 38 LCD-32XR8DA...
  • Page 39 PART LIST OF EXPLODED VIEW DESCRIPTION Front cabinet Panel Data processing board Key board Back cabinet Speaker Stand Power board IR board User manual Remote control...
  • Page 40 PART LIST LCD-32XR8DA ver. REF.No. PARTS No. DESCRIPION Q'TY REMARK XI5QG32L207A Front cabinet Panel 1 CPT CLAA320WF01U XI6HE0086910 Data processing board XI6HU0310510 Key board Back cabinet XI5HG32WH02C Speaker XI6170658070 Stand XI6151077750 XI6HU0212010 Power board XI6HU0310910 IR board User manual XI5944032600...
  • Page 41 APPENDIX-A: Main assembly LCD-42XR8DA MAIN COMPONENT AND IT'S NO. NAME NS01 MSD109CL (5270109001) N101 R2A10406NP (5271040601) Data processing board XI6HE0086910 NJ01 CE6353 (5276353001) PS321TQF (5270321001) NV02 R2A15112FP (5271511201) IR board XI6HU0310910 Key board XI6HU0230510 Power board XI6FN0132010 RC-J17-0A Remote control XI6010J01701 V420H1-L11 Panel...
  • Page 42 LCD-42XR8DA...
  • Page 43 PART LIST OF EXPLODED VIEW DESCRIPTION Front cabinet IR board Panel Data processing board Key board Speaker Power board Back cabinet Stand User manual Remote control...
  • Page 44 PART LIST LCD-42XR8DA ver. REF.No. PARTS No. DESCRIPION Q'TY REMARK XI5Q232L007B Front cabinet XI6HU0310910 IR board 1 CMO V420H1-L11 Panel XI6HE0086910 Data processing board XI6HU0230510 Key board Speaker XI6170792020 XI6FN0132010 Power board XI5H232LJ03C Back cabinet XI6151073650 Stand User manual XI5944032760 Remote control XI6010J01701 Only the parts in above list are used for repairing.

This manual is also suitable for:

Lcd-42xr8da