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Eiki LC-X71 LC-X71L service manual PW388 System Control & Scan Converter, IC301, IC Block Diagrams

Models: LC-X71 LC-X71L

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IC Block Diagrams

●PW388 <System Control & Scan Converter, IC301>

●STR-Z2156A <Power Switching, IC651>

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Page 65

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Eiki LC-X71 LC-X71L PW388 System Control & Scan Converter, IC301, STR-Z2156A Power Switching, IC651, IC Block Diagrams

Contents

Chassis No. KE6-X7100 KE6-X71L00 SERVICE MANUAL Multimedia Projector Model No. LC-X71 LC-X71LORIGINAL VERSION LC-X71Contents SAFETY PRECAUTIONS Safety InstructionsPRODUCT SAFETY NOTICE SERVICE PERSONNEL WARNINGSpecifications Interlock switch Thermal switchCircuit Protections FuseAir filter care and cleaning Warning temperature and power failure protectionPossible causes RECOMMENDATION1 Cabinet Top removal Mechanical Disassemblies2 Cabinet Front removal Fig.1Fig.4 3 Main Board removal4 AV, I/F Board & Rear Panel removal Fig.5 5 Lamp Ballast Unit removal6 Optical Unit removal 7 Prism Base removal 8 Power Board removalFig.7 Fig.810 Fans FN901, FN902 removal 9 Filter Board & Interlock SW & Thermal SW removalFig.9 Fig.10Projection Lens removal Relay Lens disassemblyOptical Parts Disassemblies Fig.3-2 Polarized Glass-In removalFig.3-1 Fig.4-1 Polarized Glass-Out and Wide view Glass removalOptical Unit Top removal Condenser Lens disassemblyOptical Pats Disassemblies 1 Remove 7 screws to take the Optical Unit Top off upwardDescription Locations and DirectionsOptical Parts Disassemblies Note on LCD Panel/Prism Ass’y Mounting LCD Panel/Prism Ass’y ReplacementLCD Panel/Prism Ass’y removal Note on LCD Panel/Prism Ass’y How to reset Lamp Replace Counter Lamp ReplacementHow to check lamp used time RecommendationOptical Adjustments Electrical Adjustments Adjustments after Parts ReplacementContrast adjustment Optical AdjustmentsR/G/B-CONTRAST ADJUSTMENT Fig.1-1Fig.2-2 Condenser Lens adjustmentFig.2-1 Relay lens-Out adjustment Service Adjustment Menu Operation Electrical AdjustmentsMemory IC Replacement Service Modex +16V adjustment Circuit Adjustmentsz Output Voltage adjustment b PSIG adjustment c Fan Voltage adjustmentv Video Center adjustment n PC Black Level adjustmentA/V Input adjustment m PC Input adjustmentCommon Center adjustment ⁄0PC Gamma-shift adjustmentNOTE ON WHITE UNIFORMITY ADJUSTMENT ⁄2AV Gamma-shift adjustment⁄3AV White Balance adjustment Electrical Adjustments Test Points and LocationsIC801 IC1871Adjustment Item Service Adjustment Data TableGroup No Initial Value143 144 145 146 147 148 149 150 Adjustment for AV input M62393FP AD9882Composite NTSC Last Calib Table OffsetGroup No. Adjustment Item Electrical AdjustmentsInitial Value RangeAdjustment Item Electrical AdjustmentsGroup No Initial Value436 RGB Video RGB-Video 1080-25psf Group No. Adjustment Item Electrical AdjustmentsInitial Value Range721 23pull down setting 720 22pull down settingGhost Drift 980 Color shading correctionChassis Description Chassis block diagramsChassis over view R-LCD PANELChassis Description Video signal processing stageA/V BOARD MAIN BOARDChassis Description Audio signal processing stageFAN location FAN control stageChassis Description K16IMotor control stage Lamp control stageChassis Description LENS SHIFTChassis Description Serial bus control stageChassis Description Power supply lines & power failure detectionPRIMARY CIRCUITIndicators LED indication and projector conditionProjector Condition Chassis DescriptionDetection of Power failure Power failure detection systemError information table Chassis Description Power failure detection treeDiagnosis procedure Diagnosis of power failure with RS-232C portThe Latest Error Error history logSystem Control & I/O Port Table IC801, HD6417727F Control Port FunctionsControl Port Functions Control Port Functions Control Port Functions Control Port Functions Parallel I/O Expander IC4801, TIC81592GPIC281 IIC Bus D/A ConverterM62393 IC7801Waveforms Disassembly Cleaning CleaningCleaning with air spray BH3540 Volume Control, IC1652 IC Block DiagramsAD8183ARU/AD8185ARU AD9882CXA7004R LCD Driver, IC501, IC531, IC561, IC1501, IC1531, IC1561 CXD3531R Digital Signal Driver & Timing Generator , IC401IC Block Diagrams CXD3807 AV A/D, IC9201EDD2516 DDR Memory, IC1301, IC1311,IC1321,IC1331 IC Block Diagrams EM638325TS DDR Memory, IC1801 FA5502M P. F. Controller, IC601Motor Drive IDT70V24S15PFG DP RAM, IC4701SP232 LB1641 IC1602, IC1611IC Block Diagrams STR-Z2156A Power Switching, IC651PW388 System Control & Scan Converter, IC301 Divide TA1370FG Sync Separator, Frequency Counter, IC3231TIC81592 I/O Expander, IC4801 IC Block Diagrams TDA1517ATW Audio Output, IC1681, IC1682Read Description in the parts list Electrical Parts ListCooling Fan Electrical Parts ListElectrical 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 Description Electrical Parts ListDescription A/V BOARDDescription Electrical Parts ListDescription Description Electrical Parts ListDescription Description Electrical Parts ListDescription Description Electrical Parts ListDescription POWER BOARD Electrical Parts List610 328 8383 ASSY,PWB,POWER KE6B DescriptionDescription Electrical Parts ListDescription SUB POWER BOARD Electrical Parts List610 328 8413 ASSY,PWB,SUB POWER KE6B DescriptionDescription Electrical Parts ListDescription DRIVE BOARDKE6-X71L00 Electrical Parts Listdifferent parts KE6-X71L00CABINET PARTS Mechanical Parts List23-a 23-b23-c KE6-X710070-a Optical Parts List24-a TYPE-RPage 71R/L Optical Parts List71-a R 71-b GKE6-X7100 KE6-X71L00 Optical Parts Listfurther instructions 2006 Eiki International, Inc A-key to better communicationsSchematic Diagrams Printed Wiring Board Drawings Diagrams & DrawingsModel Chassis NoDiode Pin description of diode, transistor and ICTransistor/FET IC ICDiagrams & Drawings LC-X71, LC-X71L