Eiki LC-NB3E LCD Panel/Prism Ass’y Replacement, LCD Panel/Prism Ass’y removal, Mounting Procedure

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■LCD Panel/Prism Ass’y Replacement

IMPORTANT NOTICE on LCD Panel/Prism Ass'y Replacement

LCD panels used for this model can not be replaced separately. Do not disassemble the LCD Panel/Prism Ass’y. These LCD panels are installed with precision at the factory. When replacing the LCD panel, should be replaced whole of the LCD panels and prism ass’y at once.

After replacing LCD Panel/Prism ass’y, please check the following adjustments.

-Check the “Condenser Lens Adjustment” , “Condenser Lens-Out Adjustment” and “Relay Lens-Out Adjustment” following to chapter “Optical Adjustment”.

-Check the “White Balance Adjustment” , “Common Center Adjustment” and “Gamma Shift Adjustment” following to chapter “Electrical Adjustment”.

-Check the white uniformity on the screen.

If you find the color shading, please adjust the white uniformity by using the proper computer and “Color Shading Correction” software supplied separately.

LCD Panel/Prism Ass’y removal

1 Remove the cabinet top and main board following to “Mechanical Disassemblies”.

2 Remove 4 screws by using the 2.0 mm hex driver and take the LCD Panel/Prism ass’y off upward from the optical unit.

Note:

Do not replace the LCD panel separately otherwise it can not obtain proper pic- ture.

LCD Panel/Prism Ass’y

Note on LCD Panel/Prism Ass’y Mounting

After replacing or installing the LCD Panel/Prism ass'y, please make sure to obtain the best focus in both TELE and WIDE zoom. If the focus adjustment is required, please adjust the positioning of LCD Panel/Prism Ass’y by following below procedure.

Mounting Procedure:

1 Loosen 4 screws A on the LCD Panel/Prism ass'y with 2.0 mm hex driver.

2 Turn the projector on and project the image with WIDE zoom, and adjust the FOCUS control to obtain the best focus.

3 Turn the ZOOM control to the TELE position.

4 Move the LCD Panel/Prism Ass’y backward or forward (about 0mm ~ 0.8mm) to obtain the proper focus. Confirm the focus at TELE and WIDE zoom.

5 Tighten 4 screws A to fix the LCD Panel/Prism ass'y.

Top View

AA

AA

LCD Panel/Prism Ass’y

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Contents Chassis No. MM8-NB3E00 Model No. LC-NB3EContents Safety Precautions Safety InstructionsSpecifications Optical Adjustments Electrical Adjustments Adjustments after Parts ReplacementFuse Circuit ProtectionsRecommendation Cabinet Top and Control Panel removal Mechanical DisassembliesMain Board removal Front Panel and R/C Board removal AV, AV Sub Board and Speaker removalAV board AV Sub board Filter Board removal Lamp Ballast Unit removalFilter board 1Optical Unit removal Power Box Cover and FansFN901, FN906 removalAB B 2Optical Unit removal Power and P.F. Board removalFan FN905 removal Interlock Switch leverOff from the Cabinet Bottom Fan duct top FN904 FN903 FN902 Optical Parts Disassemblies Integrator Lens-In disassemblyProjection Lens removal Condenser Lens-Out disassembly Condenser lens disassemblyPolarized Glass-In removal Relay Lens-Out disassemblyOptical Unit Top removal Polarized Glass-Out removalKey No. Description Locations and DirectionsLCD Panel/Prism Ass’y removal LCD Panel/Prism Ass’y ReplacementImportant Notice on LCD Panel/Prism Assy Replacement Mounting ProcedureOrder Replacement Lamp Lamp ReplacementHow to reset Lamp Replace Counter How to check Lamp Replace CounterSlot B Optical AdjustmentsContrast adjustment Before AdjustmentGreen 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 adjustmentWhite a Slot B a Moving of slot B Relay lens-Out adjustmentSlot D Moving of slot D IC1801 is not defective Electrical AdjustmentsAdjustment Condition Output Voltage adjustmentFan Voltage adjustment Pedestal adjustmentSignal Center Adjustment NRS adjustmentSignal Center adjustment Black Level adjustmentGain Adjustment PC Offset adjustmentPC Gain adjustment Offset AdjustmentCommon Center adjustment AV Gain adjustmentGamma Shift adjustment White Balance adjustmentService Adjustment Data Table Adjustment Item Initial Value Range Description Initial Value Range Description Group 500 ADC IC301 No Power TroubleshootingAbnormality occurs on the power circuit Power Board Main Board No picture from all of sources No PictureNo picture from Video source No picture from both of Video and Computer sourcesAV/PC-RGB-SW Video Signal processing diagramsNo Sound Lens Motor ProblemsSystem Control & I/O Port Table IC801 Control Port FunctionsMD2 IIC Bus I/O Expander IC2181 Port Functions IIC Bus I/O Expander IC1851 Port FunctionsIIC Bus DA Converter IC1831 Port Functions IIC Bus DA Converter IC1581 Port Functions IIC Bus DA Converter IC2161 Port FunctionsIIC Bus DA Converter IC2571 Port Functions VIDEO-IN WaveformsDrive TP52R/TP201R Drive TP52G/TP201G Drive TP52B/TP201G 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 Disassembly Cleaning 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 Read Description in the parts list Electrical Parts ListOUT of Circuit Board Board Assemblied BoardsKEY SW Board 610 299 7293 ASSY,PWB,POWER MM8B Power Board1AA0B10C352DA Fusible RES 22 JH 610 294 1708 ASSY,PWB,LINE Filter MS6A Line Filter BoardAV Board IC LT1399CS FILTER,EMI 100MHZ 610 297 1804 ASSY,PWB,AV SUB MD8A AV SUB Board1AA0B10C3700B 610 297 1828 ASSY,PWB,MAIN ME8B Main Board1AA0B10C371AA IC TB1274AF IC AD8183ARU C2103 C406 C568 Network 0X4 1/16W R152 R2549 R3544 R457 FILTER,LP 7MHZ Temp Board Accessories610 297 1873 ASSY,PWB,TEMP ME8A 1AA0B10C3710B 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