Sanyo PLC-XU45 service manual Power Box Cover and FansFN901, FN906 removal, Optical Unit removal

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Mechanical Disassemblies

mPower Box Cover and Fans(FN901, FN906) removal

1 Remove 4 screws A (M3x12) to take the Fan(FN901) off. 2 Remove 4 screws B (M3x8) to take the Fan(FN906) off.

3 Remove 3 screws C (M3x6) to take the Power Box Cover upward off.

FN906

C C

C

Power box cover

A
A	B
A	B
A
A	B	B
		B

FN901

Fig.7

,Optical Unit removal (1)

1 Remove 1 screw A (M3x6) to take the Lamp Cover off.

2 Loosen 3 screws B to take the Lamp assembly by pulling the handle.

Step to next procedure.

Lamp ass’y

B

B

B

Lamp cover

A	Fig.8-1

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Image 11

Contents PLC-XU46 PLC-XU45 PLC-XU46Contents Do not Attempt to Servicing Remote Control Unit Safety InstructionsSpecifications Optical Adjustments Electrical Adjustments Adjustments after Parts ReplacementType T4.0AH 250V Fuse Little Fuse INC. Type Circuit ProtectionsRecommendation Possible causesMain Board removal Mechanical DisassembliesCabinet Top and Control Panel removal DVI board AV, DVI, Temp Board and Speaker removalFront Panel and R/C Board removal Temp boardFilter board Lamp Ballast Unit removalFilter Board removal Isolation sheet Lamp ballast board SW902Optical Unit removal Power Box Cover and FansFN901, FN906 removalPower and P.F. Board removal ⁄1Fans FN902, FN903, FN904 removal ⁄0Fan FN905 removalProjection Lens removal Integrator Lens-In disassemblyOptical Parts Disassemblies Condenser Lens-Out disassembly Condenser lens disassemblyHolder Relay Lens-Out disassemblyPolarized Glass-In removal Prism Ass’y Polarized Glass-Out/Pre-Polarized Glass removalOptical Unit Top removal LCD PanelKey No. Description Locations and DirectionsColor Shading Correction LCD Panel/Prism Ass’y ReplacementLCD Panel/Prism Ass’y removal How to check Lamp Replace Counter Lamp ReplacementHow to reset Lamp Replace Counter B-CONTRAST Adjustment Optical AdjustmentsContrast adjustment Green b Slot B Moving of slot B Slot D Moving of Slot D Condenser Lens adjustmentCyan a Slot B Moving of slot B Moving of slot D Condenser Lens-Out adjustmentSlot D Moving of slot D Relay lens-Out adjustmentWhite a Slot B a Moving of slot B IC1801 is not defective Electrical AdjustmentsFan Voltage adjustment For PLC-XU46 Output Voltage adjustment For PLC-XU45Output Voltage adjustment For PLC-XU46 Fan Voltage adjustment For PLC-XU45Black Level adjustment X12 Pedestal adjustmentC12 NRS adjustment V12 Signal Center adjustmentCommon Center adjustment PC Offset adjustmentM12 PC Gain adjustment AV Gain adjustmentAdjustment ⁄01 Gamma Shift adjustment⁄11 White Balance adjustment CXA2101 TB1274LP05 Turbo TA1318Group 510 Ntsc Gakaku Group 10 OptionFan Control Group 500 ADCGroup 516 Hdtv 575p Gakaku Group 513 Hdtv 1080i-50 GakakuGroup 514 Hdtv 1035i Gakaku Group 515 Hdtv 720p GakakuMain Board Test Points and LocationsAbnormality occurs on the power circuit TroubleshootingIC801 F601Fuse Thermal sw. Interlock sw No picture from all of sources No picture from Video sourceNo picture from DVI source No picture from both of Video and Computer sourcesVideo Signal processing diagrams No power supply at audio circuit No audio signals at AV input circuitIncorrect operation of VIDEO/COMPUTER mode switching No audio output signal at speakerSystem Control & I/O Port Table IC801 Control Port FunctionsControl Port Functions IIC Bus DA Converter IC1831 Port Functions IIC Bus I/O Expander IC1851 Port FunctionsIIC Bus I/O Expander IC2181 Port Functions IIC Bus DA Converter IC2571 Port Functions IIC Bus DA Converter IC2161 Port FunctionsIIC Bus DA Converter IC1581 Port Functions Drive TP52R/TP201R Drive TP52G/TP201G Drive TP52B/TP201G WaveformVIDEO-IN Ballast SW TP28L Sync OUT IC4101-29 Sync OUT IC4101-28Sync in TP205 Sync Drive TP62H Sync Drive TP62V DHS Tpdhs DVS TpdvsCleaning with air spray CleaningIC Block Diagrams BA7078AF Selector, IC6241 CXA2101AQ RGB Matrix, IC4101 IC Block Diagrams L3E07050 Color, Gamma Correction & Timing Controller , IC401 ML60851 USB I/F, IC9801 M62393 D/A, IC2571 TB1274AF Video Decoder, IC1101 TA1318N AFC Detector, IC6171 IC Block Diagrams Page Read Description in the parts list Electrical Parts ListOUT of Circuit Board Assemblied Boards MF3-XU4600, PLC-XU46 Assemblied Boards ME3-XU4500, PLC-XU45KEY SW Board 610 292 5609 ASSY,PWB,KEY SW MS6AIntegrated Circuit AV Board610 299 7330 ASSY,PWB,AV MK8A TransistorNP-ELECT Coil DVI Board610 299 7347 ASSY,PWB,DVI MK8A For ME3-XU4500, PLC-XU45 Power Board610 301 0939 ASSY,PWB,POWER MK8A 610 305 8641 ASSY,PWB,POWER MF3AMT-POLYEST 0.047U K Transformer MF3-XU4600, PLC-XU46610 305 8658 ASSY,PWB,P.F. MF3A Board610 301 0946 ASSY,PWB,P.F. MK8A 610 301 0953 ASSY,PWB,LINE Filter MK8A Main BoardLine Filter Board 405 014 4608 2SC2412K T146 173 9803 2SC3928A1R 015 8704 IC MM1031XM SN74AHCT1G14DBVR C1539 403 164 0204 403 373 C5217 403 164 0204 Network RB413 645 037 0663 Network 22X4 0.063W R1132 R152 401 8104 R2546 401 105 7909 R336 401 7909 R433 401 105 3901 Fusible Diode Integrated Circuit Temp Board610 304 8932 ASSY,PWB,TEMP ME3A AC Cord AccessoriesRemote Control Mechanical Parts List Optical Parts 67 Red Green Blue Optical filterWV Polarized glassModel PLC-XU46 Model PLC-XU45 52-aMechanical Parts List Chassis Parts Cabinet Parts ScrewsOptical Parts Page PLC-XU46 Diagrams & Drawings Schematic DiagramsPrinted Wiring Board Drawings PLC-XU45Resistor Reading Parts description and reading in schematic diagramCircuit Block Diagram 5VD 9V MCI 5VS3VS 5VS 5VDVIDVI Sideb Printed Wiring Board DiagramsAV Sidea DVI Sidea Temp Sidea Main SideaSidea IC5211 Main SidebSideb Temp SidebIC671 Power Sidea Power SidebK6S K6RK6B KEY SW SideaLine Filter Sidea KEY SW SidebA10 FA7701V Schematic Diagrams PLC-XU45,46 A11 LeftLine Filter Baord IC681Ower Supply Schematic Diagrams PLC-XU45,46 A11 RightAudio Schematic Diagrams PLC-XU45,46 A12 LeftIC6171 TA1318AF Schematic Diagrams PLC-XU45,46 A12 RightDigital Schematic Diagrams PLC-XU45,46 A13 LeftMatri Schematic Diagrams PLC-XU45,46 A13 RightAD8183ARU Schematic Diagrams PLC-XU45,46 A14 LeftCG1/CG2-SW AD8185ARU3VS C201 TE201E Schematic Diagrams PLC-XU45,46 A14 RightIC8001 Schematic Diagrams PLC-XU45,46 A15 LeftIC301 IC1341 Schematic Diagrams PLC-XU45,46 A15 RightDigital Color Unformity Correction Timing Control Lamp Schematic Diagrams PLC-XU45,46 A16 Left50-52 Memory Schematic Diagrams PLC-XU45,46 A16 RightSUB CPUCorrection Schematic Diagrams PLC-XU45,46 A17 LeftColor Uniformity & GammaShift Schematic Diagrams PLC-XU45,46 A17 RightLevel Schematic Diagrams PLC-XU45,46 A18 Left Schematic Diagrams PLC-XU45,46 A18 Right IC IC Pin description of diode, transistor and IC