Manuals / Eiki / TV and Video / Projection Television

Eiki LC-X71 LC-X71L IDT70V24S15PFG DP RAM, IC4701, Motor Drive, SP232, LB1641 IC1602, IC1611

Models: LC-X71 LC-X71L

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IC Block Diagrams

●IDT70V24S15PFG <DP RAM, IC4701>

● Motor Drive		● SP232
LB1641 <IC1602, IC1611>,		<RS-232C Driver, IC3801>
LB1645N <IC1601>

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Eiki LC-X71 LC-X71L IDT70V24S15PFG DP RAM, IC4701, Motor Drive, SP232, LB1641 IC1602, IC1611, RS-232C Driver, IC3801

Contents

SERVICE MANUAL Multimedia Projector Model No. LC-X71 LC-X71L Chassis No. KE6-X7100 KE6-X71L00ORIGINAL VERSION LC-X71Contents Safety Instructions SAFETY PRECAUTIONSPRODUCT SAFETY NOTICE SERVICE PERSONNEL WARNINGSpecifications Thermal switch Interlock switchCircuit Protections FuseWarning temperature and power failure protection Air filter care and cleaningPossible causes RECOMMENDATIONMechanical Disassemblies 1 Cabinet Top removal2 Cabinet Front removal Fig.14 AV, I/F Board & Rear Panel removal 3 Main Board removalFig.4 6 Optical Unit removal 5 Lamp Ballast Unit removalFig.5 8 Power Board removal 7 Prism Base removalFig.7 Fig.89 Filter Board & Interlock SW & Thermal SW removal 10 Fans FN901, FN902 removalFig.9 Fig.10Optical Parts Disassemblies Relay Lens disassemblyProjection Lens removal Fig.3-1 Polarized Glass-In removalFig.3-2 Polarized Glass-Out and Wide view Glass removal Fig.4-1Condenser Lens disassembly Optical Unit Top removalOptical Pats Disassemblies 1 Remove 7 screws to take the Optical Unit Top off upwardOptical Parts Disassemblies Locations and DirectionsDescription LCD Panel/Prism Ass’y removal LCD Panel/Prism Ass’y ReplacementNote on LCD Panel/Prism Ass’y Mounting Note on LCD Panel/Prism Ass’y Lamp Replacement How to reset Lamp Replace CounterHow to check lamp used time RecommendationAdjustments after Parts Replacement Optical Adjustments Electrical AdjustmentsOptical Adjustments Contrast adjustmentR/G/B-CONTRAST ADJUSTMENT Fig.1-1Fig.2-1 Condenser Lens adjustmentFig.2-2 Relay lens-Out adjustment Electrical Adjustments Service Adjustment Menu OperationMemory IC Replacement Service Modez Output Voltage adjustment Circuit Adjustmentsx +16V adjustment c Fan Voltage adjustment b PSIG adjustmentv Video Center adjustment n PC Black Level adjustmentm PC Input adjustment A/V Input adjustmentCommon Center adjustment ⁄0PC Gamma-shift adjustment⁄3AV White Balance adjustment ⁄2AV Gamma-shift adjustmentNOTE ON WHITE UNIFORMITY ADJUSTMENT Test Points and Locations Electrical AdjustmentsIC801 IC1871Service Adjustment Data Table Adjustment ItemGroup No Initial Value143 144 145 146 147 148 149 150 Adjustment for AV input AD9882 M62393FPComposite NTSC Last Calib Table OffsetElectrical Adjustments Group No. Adjustment ItemInitial Value RangeElectrical Adjustments Adjustment ItemGroup No Initial Value436 RGB Video RGB-Video 1080-25psf Electrical Adjustments Group No. Adjustment ItemInitial Value Range720 22pull down setting 721 23pull down settingGhost Drift 980 Color shading correctionChassis block diagrams Chassis DescriptionChassis over view R-LCD PANELVideo signal processing stage Chassis DescriptionA/V BOARD MAIN BOARDAudio signal processing stage Chassis DescriptionFAN control stage FAN locationChassis Description K16ILamp control stage Motor control stageChassis Description LENS SHIFTSerial bus control stage Chassis DescriptionPower supply lines & power failure detection Chassis DescriptionPRIMARY CIRCUITLED indication and projector condition IndicatorsProjector Condition Chassis DescriptionError information table Power failure detection systemDetection of Power failure Power failure detection tree Chassis DescriptionDiagnosis of power failure with RS-232C port Diagnosis procedureError history log The Latest ErrorControl Port Functions System Control & I/O Port Table IC801, HD6417727FControl Port Functions Control Port Functions Control Port Functions Parallel I/O Expander IC4801, TIC81592GP Control Port FunctionsIIC Bus D/A Converter IC281M62393 IC7801Waveforms Cleaning with air spray CleaningDisassembly Cleaning IC Block Diagrams BH3540 Volume Control, IC1652AD8183ARU/AD8185ARU AD9882CXD3531R Digital Signal Driver & Timing Generator , IC401 CXA7004R LCD Driver, IC501, IC531, IC561, IC1501, IC1531, IC1561EDD2516 DDR Memory, IC1301, IC1311,IC1321,IC1331 CXD3807 AV A/D, IC9201IC Block Diagrams EM638325TS DDR Memory, IC1801 FA5502M P. F. Controller, IC601 IC Block DiagramsIDT70V24S15PFG DP RAM, IC4701 Motor DriveSP232 LB1641 IC1602, IC1611PW388 System Control & Scan Converter, IC301 STR-Z2156A Power Switching, IC651IC Block Diagrams TIC81592 I/O Expander, IC4801 TA1370FG Sync Separator, Frequency Counter, IC3231Divide TDA1517ATW Audio Output, IC1681, IC1682 IC Block DiagramsElectrical Parts List Read Description in the parts listElectrical Parts List Cooling FanElectrical Parts List Electrical Parts List Description Electrical Parts ListDescription Description Electrical Parts ListDescription Description Electrical Parts ListDescription Description Electrical Parts ListDescription Description Electrical Parts ListDescription Description Electrical Parts ListDescription Description Electrical Parts ListDescription Description Electrical Parts ListDescription Description Electrical Parts ListDescription Description Electrical Parts ListDescription Description Electrical Parts ListDescription Description Electrical Parts ListDescription Description Electrical Parts ListDescription Description Electrical Parts ListDescription Description Electrical Parts ListDescription Description Electrical Parts ListDescription Electrical Parts List DescriptionDescription A/V BOARDDescription Electrical Parts ListDescription Description Electrical Parts ListDescription Description Electrical Parts ListDescription Description Electrical Parts ListDescription Electrical Parts List POWER BOARD610 328 8383 ASSY,PWB,POWER KE6B DescriptionDescription Electrical Parts ListDescription Electrical Parts List SUB POWER BOARD610 328 8413 ASSY,PWB,SUB POWER KE6B DescriptionElectrical Parts List DescriptionDescription DRIVE BOARDElectrical Parts List KE6-X71L00different parts KE6-X71L00Mechanical Parts List CABINET PARTS23-b 23-a23-c KE6-X7100Optical Parts List 70-a24-a TYPE-RPage Optical Parts List 71R/L71-a R 71-b Gfurther instructions Optical Parts ListKE6-X7100 KE6-X71L00 A-key to better communications 2006 Eiki International, IncDiagrams & Drawings Schematic Diagrams Printed Wiring Board DrawingsModel Chassis NoPin description of diode, transistor and IC DiodeTransistor/FET IC ICDiagrams & Drawings LC-X71, LC-X71L

●IDT70V24S15PFG <DP RAM, IC4701>

● Motor Drive

● SP232

LB1641 <IC1602, IC1611>,

<RS-232C Driver, IC3801>

LB1645N <IC1601>