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Related Manuals for Sanyo LCD-22XR7SN
Summary of Contents for Sanyo LCD-22XR7SN
- Page 1 CD-22XR7SN...
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Page 2: Table Of Contents
CONTENTS CONTE Safety precautions………………………………………………………………………..… Alignment instructions …………………………….…….………………………………… 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: A A tten ion This service manual is only for service personnel to take reference with. Before se vice y fo ser onne ence with 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. would be un able to w ork a nd n o way et it r epair If the connection wires, connections or components fixed by the thermotropic glue need to If the conn ectio...
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Page 5: Alignment Instructions
Alignment instructions Alig nment nstructi n 1. Test equipment PM5518 (video signal generator) VG-849 (VGA and HDMI signal generator) CA210 (color analyzer) 2 Alignment flow-chart The alignment flow-chart is shown as fig-1 Check DDC, HDCP KEY, FLASH and POWER control IC Factory initialization setup IF channel AFT voltage of TV and AGC voltage adjustment ADC correction of VGA and YPbPr... - Page 6 LOGO LOGO ON: display LOGO in no signal or turn on ON: d splay LOGO in no n on OFF: no LOGO display OFF: GO d play ADC PRESCALE Software will preset the data according the unit and the data can be adjusted when needed.
- Page 7 4 Performance check 4 Pe e che e ck 4.1 TV function 4.1 TV func Enter searching menu auto search, connect RF-TV terminal with central signal source and check if the picture is normal, if there are channels be skipped. Check CCD and V-CHIP function (for America).
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Page 8: Method Of Software Upgrading
Method of software upgrading Method of softw w are upgrad ng 1. The tools and software demanded 1) Please confirm that PC has the software of ISP_TOOL and install the parallel interface drive program Port95nt. 2) ISP_TOOL icon is bellow: 3) One parallel cable (25 pins) and one VGA cable (15 pins), the parallel cable connects the PC and the upgrade instrument, the VGA cable connects the TV and the upgrade instrument. - Page 9 Note: if it appears error, check the connection wires and check if ISP item of the factory menu is set to 1, if not, please set it to 1. 4) After connection is done, it needs to read the Binary document. Press “Read” as shown below: 5) Search the document needed to write in the “Read”...
- Page 10 Select 6) Select the document then the window will appear as shown below:...
- Page 11 7) Press “Auto” to select the writing function. Select the items shown in the picture above: (a) Read File (a) R R R ead d File...
- Page 12 (b) Program (b) P ogram (c) Exit ISP (c) Ex t ISP (d) Erase Device (e) File Area 8) Press “Run” to begin the writing program, wait till the blue bar is complete. After writing, it will display OK: If there is error appeared (shown as below), press “Run” again to rewrite the program till it is success.
- Page 13 Note1: keep the connection well and don’t cut off the power during the writing process. Note2: the writing speed can be adjusted as shown below. Select “Config” then adjust Speed BAR, the value is bigger the speed is faster. But it is easier to appear error when increase the speed, so it need to select a suitable speed according the PC.
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Page 14: Working Principle Analysis Of The Unit
Working principle analysis of the unit king pr ncip p le a a ysis of the unit The RF signal received by antenna will be sent to tuner TUNER101, then IF signal will be obtained through high amplifier and mixed frequency, through pre-intermediate amplified by V101, then it will be sent to acoustic surface-wave Z102 to do IF filter and get better IF characteristics, then it will be sent to N101 (R2S10401) to do intermediate amplification, phase-locked loop VCO and synchronous wave detection to get composite video signal TV-VIDEO;... -
Page 15: Block Diagram
Block diagram Block di gram EDID EDID 24C02 24C02 POWER MEG. ATMEG8L HDMI FLASH YPbPr LCD TV EEPROM CONTROLLER AV1-V AV2-V HDCP KEY MST9U19A PANEL VGA-L/R AV1/YPbPr-L/R A A V1/Y bPr-L/R AUDIO AMP. AV2-L/R R2S15102 TUNER SPEAKER TV-V IF AMP R2S10401 TV-SIF L/R-AV OUT... -
Page 16: Ic Block Diagram
IC block diagram IC b ock diagram m MST9U19A: 4, 5, 7, 8, 10, 11, 1, 2: HDMI input 135: search station synchronizing check input 16, 17: H/V synchronizing input 154: HDMI hot-plug check output 27, 25, 22: RGB input 145: standby control output 30, 32, 35: YPbPr input 148: picture on/off output... - Page 17 R2S10401: R2S10401...
- Page 18 1, 2: VIF input 1, 2: V F inp 23: SIF input 23: SI inpu 7: TV-CVBS output 10: TV-SIF output 17: SDA 18: SCL R2S15102NP: 5, 11: L/R input 1, 15: L/R output 13: mute control input...
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Page 19: Wiring Diagram
Wiring diagram Wiri ng d ag am power board backlight pins key board panel pins pins pins pins pins pins pins pins pins main board... -
Page 20: Troubleshooting Guide
Trouble shooting Trou ble hooting 1. No raster Turn on power supply, check if the red indicator is light in the STANDBY? Check if PIN3 (5V) of XB20 Press POWER button in the on the main board is normal? unit or sensor control and check the indicator. - Page 21 2. Raster, but no picture 2. Ra ster, but no picture Check if the unit button Does display remote control menu in screen when operation? press menu button? Check if there is no signal in all channels? HDMI/VGA/YPRPB Enter factory-menu, Which is no signal initialization EEPROM, of channels?
- Page 22 3.no sound 3.no soun Check if PIN2, 3,13 and Check PIN5 14 voltage of NV4 is PIN11 output wave of Replace NV4 normal? Check power supply Check PIN10 wave of Replace NS2 N101 Replace N101 Check PIN11 wave of TUNER Replace TUNER...
- Page 30 APPENDIX-A: Main assembly LCD-22XR7SN NDIX-A Main n assembly L D 22XR R 7SN MAIN COMPONENT AND IT'S NO. NAME N101 R2S10401 (5271040101) Main board XI6HU080110 MST9U19B (5270919002) R2S15102NP (5271510201) Key board XI6HU0060510 XI6HA0061410 Backlight board Power board XI6HU0082010 Remote control...
- Page 31 LCD-22XR7SN...
- Page 32 PART LIST OF EXPLODED VIEW P P ART LIS O EXP P LO ED VIE DESCRIPTION Front cabinet Key board Speaker Panel Main board Back cabinet Stand Power board Back light board User manual Remote control...
- Page 33 PART LIST LCD-22XR7SN ver. REF.No. PARTS No. DESCRIPION Q'TY REMARK Front cabinet XI5QK26U105B XI6HU0060510 Key board Speaker Panel 1 CPT CLAA220WA01 032 XI6HU080110 Main board XI5HK37WH02A Back cabinet Stand XI6151087130 XI6HU0082010 Power board Back light board XI6HA0061410 User manual XI5944034300...