Eiki LC-NB3E Mechanical Disassemblies, Cabinet Top and Control Panel removal, Main Board removal

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Mechanical Disassemblies

Mechanical disassemble should be made following procedures in numerical order. Following steps show the basic procedures, therefore unnecessary step may be ignored.

Caution:

The parts and screws should be placed exactly the same position as the original otherwise it may cause loss of performance and product safety.

1Cabinet Top and Control Panel removal

1 Remove 4 screws A to take the Cabinet Top Ass’y upward off.

2 Remove the Control Panel off from the Cabinet Top by lifting the edge of control panel.

Control panel

A

A

Cabinet top

A

A

Fig.1

2Main Board removal

1 Remove 8 screws to take the Main Board upward off.

Main Board

Fig.2

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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. DescriptionLCD Panel/Prism Ass’y Replacement Important Notice on LCD Panel/Prism Assy ReplacementMounting Procedure LCD Panel/Prism Ass’y removalLamp Replacement How to reset Lamp Replace CounterHow to check Lamp Replace Counter Order Replacement LampOptical Adjustments Contrast adjustmentBefore 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 defectiveOutput Voltage adjustment Fan Voltage adjustmentPedestal adjustment Adjustment ConditionNRS adjustment Signal Center adjustmentBlack Level adjustment Signal Center AdjustmentPC Offset adjustment PC Gain adjustmentOffset Adjustment Gain AdjustmentAV Gain adjustment Gamma Shift adjustmentWhite Balance 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 No picture from Video sourceNo picture from both of Video and Computer sources 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 OUT IC4101-29 Sync OUT IC4101-28 Sync in TP205Sync Drive TP62H Sync Drive TP62V DHS Tpdhs DVS Tpdvs 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