Eiki LC-NB3E service manual Contents

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■Contents

■Safety instructions ________________________________________________3

■Specifications __________________________________________________ 4

■ Note on Servicing ______________________________________________ 5

■ Adjustments after parts replacement ________________________________ 5

■Circuit protections ______________________________________________ 6-7

●Fuse ____________________________________________________ 6

●Thermal switch ____________________________________________ 6

●Interlock switch ____________________________________________ 6

● Warning temperature and power failure protection ________________ 7

■Mechanical disassemblies ______________________________________ 8-13

■Optical parts disassemblies ____________________________________ 14-17

■LCD panel/prism ass’y replacement ________________________________ 19

■Lamp replacement ______________________________________________ 20

■Optical adjustments __________________________________________ 21-24

●Contrast adjustment ________________________________________ 21

●Condenser lens adjustment __________________________________ 22

●Condenser lens-Out adjustment ______________________________ 23

●Relay lens-Out adjustment __________________________________ 24

■Electric adjustments __________________________________________ 25-30

●Service adjustment menu operation ____________________________ 23

●Circuit adjustments ______________________________________ 24-29

●Service adjustment data table ______________________________ 30-33

●Test points and locations ____________________________________ 34

■Troubleshooting ______________________________________________ 35-39

●No power ______________________________________________ 35-36

●No picture ____________________________________________ 37-38

●No sound ________________________________________________ 39

●Lens motor problems ______________________________________ 39

■ Control port functions ________________________________________ 40-43

■Waveforms __________________________________________________ 44-45

■Cleaning ______________________________________________________ 46

■IC block diagrams ____________________________________________ 47-53

■Service parts lists ____________________________________________ 55-84

●Electrical parts list ______________________________________ 55-77

●Mechanical parts list ____________________________________ 78-79

●Optical parts list ________________________________________ 80-84

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Contents Model No. LC-NB3E Chassis No. MM8-NB3E00Contents Safety Instructions Safety PrecautionsSpecifications Adjustments after Parts Replacement Optical Adjustments Electrical AdjustmentsCircuit Protections FuseRecommendation Main Board removal Mechanical DisassembliesCabinet Top and Control Panel removal AV board AV Sub board AV, AV Sub Board and Speaker removalFront Panel and R/C Board removal Filter board Lamp Ballast Unit removalFilter Board removal AB B Power Box Cover and FansFN901, FN906 removal1Optical Unit removal Power and P.F. Board removal 2Optical Unit removalOff from the Cabinet Bottom Fan duct top FN904 FN903 FN902 Interlock Switch leverFan FN905 removal Projection Lens removal Integrator Lens-In disassemblyOptical Parts Disassemblies Condenser lens disassembly Condenser Lens-Out disassemblyRelay Lens-Out disassembly Polarized Glass-In removalPolarized Glass-Out removal Optical Unit Top removalLocations and Directions Key No. DescriptionMounting Procedure LCD Panel/Prism Ass’y ReplacementImportant Notice on LCD Panel/Prism Assy Replacement LCD Panel/Prism Ass’y removalHow to check Lamp Replace Counter Lamp ReplacementHow to reset Lamp Replace Counter Order Replacement LampBefore Adjustment Optical AdjustmentsContrast adjustment Slot BCondenser Lens adjustment Green b Slot B Moving of slot B Slot D Moving of Slot DCondenser Lens-Out adjustment Cyan a Slot B Moving of slot B Moving of slot DSlot D Moving of slot D Relay lens-Out adjustmentWhite a Slot B a Moving of slot B Electrical Adjustments IC1801 is not defectivePedestal adjustment Output Voltage adjustmentFan Voltage adjustment Adjustment ConditionBlack Level adjustment NRS adjustmentSignal Center adjustment Signal Center AdjustmentOffset Adjustment PC Offset adjustmentPC Gain adjustment Gain AdjustmentWhite Balance adjustment AV Gain adjustmentGamma Shift adjustment Common Center adjustmentService Adjustment Data Table Adjustment Item Initial Value Range Description Initial Value Range Description Group 500 ADC IC301 Abnormality occurs on the power circuit TroubleshootingNo Power Power Board Main Board No picture from both of Video and Computer sources No PictureNo picture from Video source No picture from all of sourcesVideo Signal processing diagrams AV/PC-RGB-SWLens Motor Problems No SoundControl Port Functions System Control & I/O Port Table IC801MD2 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 WaveformsVIDEO-IN Sync Drive TP62H Sync Drive TP62V DHS Tpdhs DVS Tpdvs Sync OUT IC4101-29 Sync OUT IC4101-28Sync in TP205 Ballast SW TP28LCleaning Cleaning with air spray Disassembly CleaningIC Block Diagrams BA7078AF Selector, IC6241 CXA2101AQ RGB Matrix, IC4101 IC Block Diagrams IC Block Diagrams ML60851 USB I/F, IC9801 M62393 D/A, IC2571 TB1274AF Video Decoder, IC1101 TA1318N AFC Detector, IC6171 IC Block Diagrams Page Electrical Parts List Read Description in the parts listOUT of Circuit Board KEY SW Board Assemblied BoardsBoard 1AA0B10C352DA Power Board610 299 7293 ASSY,PWB,POWER MM8B Fusible RES 22 JH AV Board Line Filter Board610 294 1708 ASSY,PWB,LINE Filter MS6A IC LT1399CS FILTER,EMI 100MHZ 1AA0B10C3700B AV SUB Board610 297 1804 ASSY,PWB,AV SUB MD8A 1AA0B10C371AA Main Board610 297 1828 ASSY,PWB,MAIN ME8B IC TB1274AF IC AD8183ARU C2103 C406 C568 Network 0X4 1/16W R152 R2549 R3544 R457 FILTER,LP 7MHZ 610 297 1873 ASSY,PWB,TEMP ME8A 1AA0B10C3710B AccessoriesTemp Board Key No. Part No Description Mechanical Parts List Cabinet Parts Optical Parts Optical Parts List 67 Red Green Blue Red 52-a Optical Parts List MM8-NB3E00 MM8-NB3E00 MM8-NB3E00 Key to better communications Canada
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