Related Manuals for Sanyo LCD-42XR9DA
Summary of Contents for Sanyo LCD-42XR9DA
- Page 1 FILE NO. SERVICE MANUAL LCD-42XR9DA PRODUCT CODE No. PRODUCT CODE No. 1 682 346 39: CCIR DVB-T LCD TV REFERENCE No.:SM0915070...
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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 Removing or Installing the Stand Wall mounting instructions... -
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.
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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.
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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...
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Page 20: Wiring Diagram
Wiring diagram Power Board Speaker Panel Power Switch Data Board IR Board Key Board... - 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.
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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?
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Page 26: Schematic Diagram
Data Processing Board... - Page 27 Data Processing Board...
- Page 28 Data Processing Board...
- Page 29 Data Processing Board...
- Page 30 Data Processing Board...
- Page 31 Data Processing Board...
- Page 32 Data Processing Board...
- Page 33 Data Processing Board...
- Page 34 Power Board...
- Page 35 IR Board and Key Board...
- Page 36 APPENDIX-A: Main assembly LCD-42XR9DA MAIN COMPONENT AND IT'S NO. NAME NS01 MSD109CL (5270109001) N101 R2A10406 (5271040601) Data processing board XI6HE03869A0 NJ01 CE6353 (5276353001) NA05 PS321TQF (5270321001) NV02 R2A15112 (5271511201) IR board XI6HE0330910 Key board XI6HE0330510 Power board XI6KU0062010 Remote control...
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Page 37: Appendix-B: Exploded View
APPENDIX-B: Exploded view (LCD-42XR9DA) - Page 38 PART LIST OF EXPLODED VIEW DESCRIPTION Front cabinet IR board Speaker Panel Data processing board Power board Key board Back cabinet Stand User manual Remote Control...
- Page 39 PART LIST LCD-42XR9DA ver. REF.No. PARTS No. DESCRIPION Q'TY REMARK front cabinet XI5Q42420010 XI6HE0330910 IR board XI6170805000 speaker XI5203428508 panel V420H1-L15 XI6HE03869A0 data processing board XI6KU0062010 power board XI6HE0330510 key board XI5H4246K020 back cabinet XI6151189000 stand XI5944035780 user manual XI6010J017A1 remote control Only the parts in above list are used for repairing.
- Page 40 Assemble & Disassemble the Pedestal Base (Option) If the stand is provided, please read these instructions thoroughly before attempting this installation. Safety Precautions: 1. Please read these instructions thoroughly prior to attempting this installation. 2. Be sure to handle this product very carefully when attempting assembly. If you are unsure of your capability, or the use of tools necessary to complete this activity, refer to a professional installer or service personnel.
- Page 41 Assemble & Disassemble the Pedestal Base (Option) To remove the stand column: 1. Lay your TV flat (screen down) on a table or bench. Make sure that you put down a soft cushion or cloth so that your TV is not scratched. 2.
- Page 43 Aug/2009...