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Sanyo LCD-42XR56DZ Service Manual

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Summary of Contents for Sanyo LCD-42XR56DZ

  • Page 2 LCD-42XR56DZ LCD TV 3 6 1...

  • Page 3: Table Of Contents

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

  • Page 4: 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 5 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 6: Alignment Instructions

    Alignment instructions Test equipment PM5518 (video signal generator) VG-848 (VGA, YPbPr signal generator) VG-849 (HDMI digital video signal generator) CA210 (color analyzer) Alignment flow 1.1 Voltage of power supply test According to the wiring diagram “9232KE5601JL”, connect power board, digital board, IR board correctly;...
  • Page 7 1.2 Adjustment flow chart as Fig.1 Check if DDC、 、HDCP KEY and FLASH have been burned. combination adjustment general assembly white balance adjustment Connect to central signal source, check if Check accessories and packing. TV functions are normal -omitted channel, analog parameters control, etc;...
  • Page 8 Factory menu item “ADC Calibrate” is used to correct ADC of VGA and Component channel; Factory menu item “W/B ADJUST” is used to adjust white balance; Factory menu item “POWER MODE” is used to set power-on mode, “Standby” means the set will be in standby state after power-on;...
  • Page 9 move cursor to item “MODE”，press keys “▲” and “▼” to select item “RGB”, then move cursor to item “AUTO ADC” and press key “OK” to begin adjustment automatically until adjustment completion. ADC calibration of YPbPr channel a) Switch to YPbPr channel; b) Press key “SOURCE”，then press number keys “2、5、8、0”...
  • Page 10 G gun value upwards , then coordinate of Y will rise; adjust G gun value downwards , then coordinate of Y will descent; note: default color temperature for SANYO customer is Normal; change to picture mode Dynamic, adjust chromaticity coordinates of color temperature Normal and Cool;...
  • Page 11 480p (NTSC 720×480 31.469 PROG) 480p (NTSC 720×480 31.469 59.94 PROG) 720×576 31.25 576p (PAL PROG) 1280×720 59.94 74.18 720p (59p) 1280×720 74.25 720p (60p) 1280×720 37.5 74.25 720p (50p) 1920×1080 33.75 59.94 74.25 1080i (59i) 1920×1080 33.75 74.25 1080i (60i) 1920×1080 28.125 74.25...

  • Page 12: Method Of Software Upgrading

    3.6 HDMI port Input HDMI signal from signal generator VG-849 with the formats as Table 4 and Table 5 respectively, check if the display and the sound（32 KHz、44.1 KHz、48 KHz）are normal under the circumstances of power-on/off, switching channel, switching signal format, etc. 3.7 Other functions check Check if the functions are normal —timing turn-on/off 、...
  • Page 13 Note 2: Burning and upgrading software method with burning tool ISP 1） Main board upgrading: connect 4-core line of burning tool ISP to Debug port（location No. X807） of main board; Unit upgrading: connect both VGA ports between burning tool ISP and main board, then enter into factory menu and set item “ISP Mode”...
  • Page 14 4) Press key “Read”，select burning file (for example MERGE.bin) as Fig. 4. Fig. 4 Burning file 5) Select menu “Auto”, then select items “All chip”, “program” and other configuration as Fig. 5 Fig. 5 Burning Configuration 6) Press key “Run” as Fig. 4 to begin burning software, there are two steps for the process: Erase and Program normal burning steps are as follows: the first step “Erasing…，...
  • Page 15 7) A prompt “Pass” will be displayed beside the key “Run” for successful burning as Fig. 6 Fig. 6 A prompt “Pass” beside the key “Run” for successful burning 8) Need not exit ISP burning interface and only repeat the process 3）and 5）to go on burning software for other sets.

  • Page 16: Working Principle Analysis Of The Unit

    Working principle analysis of the unit 1、 PAL/SECAM signal flow PAL/SECAM signal from antenna is inputted into TUNER FQD1116 which is an analog-digital-integrative model, the analog RF signal is demodulated by the TUNER, then CVBS signal and SIF(sound intermediate frequency) signal are outputted.
  • Page 17 amplified, now the audio signal is divided into two, one is outputted to earphone jack directly, the other is inputted into class D audio power amplifier R2A15112 to be amplified and then outputted to speakers. 4、 PC/YPbPr signal flow After processed by impedance matching, PC/YPbPr video signal is inputted into main chip MSD209 to be processed by modules of “A/D transform, digital video processing and OSD addition”, then LVDS signal is outputted to drive LCD panel.
  • Page 18 Main chip：MStar MSD209FG-LF Demodulating chip：Intel CE6353 TUNER：NXP FQD1116ME/IV DDR：SAMSUNG K4T51163QC-HCF7 Class D audio power amplifier：RENESAS R2A15112 FLASH ：MX25L6405DMI-12G External ports of the unit: Two groups of Video input and RCA L/R input 　 One group of S-VIDEO input 　 Two groups of HDMI input 　...

  • Page 19: Block Diagram

    Block diagram...

  • Page 20: Ic Block Diagram And Instruction

    IC block diagram and instruction 1、 Main chip MSD209FG-LF: GENERAL DESCRIPTION The MSD209FG is a highly integrated controller IC for LCD/PDP DTV applications with resolutions up to full-HD (1920 x 1080). It is configured with an integrated triple-ADC/PLL, a multi-standard TV video and audio decoder, a motion adaptive video de-interlacer, a scaling engine, the MStarACE-3 color engine, an advanced 2D graphics engine, a transport processor, a high-definition (HD) MPEG video decoder, a 24-bit DSP for MPEG audio decoding, a DVI/HDCP/HDMI receiver, and a peripheral control unit providing a...
  • Page 21   S tepped-gain PGA with 25 dB tuning range and 1 dB tuning resolution   M aximum IF gain of 37 dB   P rogrammable TOP to accommodate different tuner gain to optimize noise and linearity performance ...
  • Page 22   S upports up to 10-bit dual LVDS full-HD (1920 x 1080) panel interface   S upports 2 data output formats: Thine & TI data mappings   C ompatible with TIA/EIA   W ith 6/8 bits optional dithered output ...
  • Page 23 　●Power supply voltage : 11V to 25V 　●Speaker Impedance : from 4 to 8Ω GAIN1 GAIN2 Gen. OUT1 SE/BTL Selector CBIAS Gen. OUT2 ROSC Oscillator DVDD CLOCK Over Current MUTEL AVCC Detection Control STBYL Logic Under Voltage Over Temp. VREF Detection Detection PROT...

  • Page 24: Wiring Diagram

    WIRING DIAGRAM POWER SWITCH POWER BOARD PANEL BACKLIGHT SPEAKER DATA BOARD KEY BOARD IR BOARD...

  • Page 25: Troubleshooting Guide

    Troubleshooting guide LC-32KE56 1．Panel is dark. Power main power supply, check if the red indicator light in STANDBY mode is bright ? Press key “POWER” of remote control or the unit to power on，check what Check if the voltage color of indicator light is? of X801-9# (STB) Blue on main board is...
  • Page 26 2．Backlight is normal, but there is no picture Check if operations Check if OSD menu is of remote control or displayed normally keys on the unit are after pressing normal ? “menu”? Check if there is no picture of all channels ? Enter into factory menu ，...
  • Page 27 3．There is picture but no sound. No sound Check Check if the voltage Check if the voltage there Change of NV02-4/5/32/32# NV02-10/27# sound from another is 24V ? high level ? earphones? NV02 Check Check if Check power supply Touch CV04 circuits on power board and voltage CV05...
  • Page 36 Power Board...
  • Page 37 SCART2 (CVBS+YC)IN/MONITOROUT SCART1 (CVBS+RGB)IN/TVOUT...

  • Page 39: Appendix-A: Main Assembly List

    APPENDIX-A: Main assembly 9242KE5610 NAME MAIN COMPONENT AND IT'S NO. NS01 MSD209FG (5270209001) NS02 NS03 K4T51163QG-HCF7(5275116301) Data processing 6KE0026910 NJ01 CE6353 (5276353001) board TUNER1 FQD1116ME/I V (5524000029) NV02 R2A15112FP (5271511201) IR board 6HC0040910 Key board 6HE0130510 Power board 6FN0132010 Remote control 6010J01701 RC-J17-0A Panel...

  • Page 40: Appendix-B: Exploded View

    APPENDIX-B: Exploded view (LC-42KE56)
  • Page 41 PART LIST OF EXPLODED VIEW LC-42KE56 DESCRIPTION Front cabinet Panel pressing block Side AV bracket Power switch Decorative ring Light-guided glass Light-guided column IR assembly Display panel Panel fixed bracket assembly Power board assembly Power socket Interface baffle Back cabinet Pedestal base Speaker Decorative bar...
  • Page 42 PART LIST------------------------------------------------------------------------------------------------ LCD-42XR56DZ ver 1.0 REMARK PART NO. DESCRIPTION QTY. 5Q42560010 Front cabinet 58A0072400 Panel pressing block 58B0C37410 Side AV bracket 5293000042 Power switch 5730281010 Decorative ring 5710156010 Light-guided glass 5700306010 Light-guided column 6HC0040910 IR assembly 5203428304 Display panel 1 T420HW02 V4...
  • Page 45 April/2009...

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