Mitsubishi Electronics WD-62528, WD-62527, WD-52528 guide

MODEL: WD-52527 / WD-52528 / WD-62527 / WD-62528

Fans Power Supply	53
Analog Video Signal Path	54
Digital Video Signal Path	55
Sound Signal Path	56
Command Input Circuitry	57
Serial Data Control Lines	57
Lamp Control Circuitry	58
Shutter Control	58
Lamp, Engine and Fan’s Protect circuitry	59

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Mitsubishi Electronics specifications Model WD-52527 / WD-52528 / WD-62527 / WD-62528

Contents

2005 Page Contents Model WD-52527 / WD-52528 / WD-62527 / WD-62528 Characteristics Servicing use only recommended Lead-Free solder refer to Safety Precautions Speaker Grille Removal SCREEN-ASSY Removal BACK-COVER Removal Metal Support Plate Removal Chassis Mounting Screws Removal Release Cable Clamps & Disconnect CE ConnectorClamp AC Cord On the right side of the chassis from the rearChassis removal from the Cabinet Complete Chassis Removal J8F01FC Chassis Sequence of Disassembly Chassis Cover Removal 1 Remove the 4 screws a Assy PWB- Terminal Removal Figure PWB-POWER Removal Figure Chassis Upper Shield Removal Figure Chassis Rear Shield Removal Figure PWB-MICRO Removal Referring to Figure PWB-RISER and PWB-FORMAT Removal Referring to Figure PWB-DM Removal Figure Light Engine Replacement Light Engine and Associated Components Light Engine Rear View Light Engine Removal ProcedurePreliminary Remove two screws c from Fan Plate and remove Model WD-52527 / WD-52528 / WD-62527 / WD-62528 Installation Servicing the Lenticular Screen and Fresnel Lens Lenticular Screen and Fresnel Lens Removal Bezel Removal Front View Lenticular Screen and Fresnel Lens Installation Installing the Fresnel Lens & Lenticular Screen Option Menu AV Reset Defaults LED Indicator Diagnostics Error Codes Remote Control Operational Modes Two Electrical AdjustmentsTwo Mechanical Adjustment Activating the Adjustment Mode Adjustment Selection Adjusting DataTerminating the circuit adjustment mode Saving Data Light Engine Adjustments Trapezoid Distortion Adjustment Rotation AdjustmentClockwise Rotation Needed Counter Clockwise Rotation Needed Format Circuit Horizontal/Vertical Position Adjust- ment Micro / Terminal PWB Troubleshooting Power PWB Troubleshooting LCD Engine Internal Layout Lamp Protect Line Pb Solder Pb-Free Display Chip Parts Removal Resistors, Capacitors, etc ReplacementChip Parts Removal Transistors Parts Ordering Critical and Warranty Parts DesignationParts Tolerance Codes Quick Reference for Common Parts Integrated Circuits Ref # Part Name & Description Transistors Diodes Coils Chip UDZS3.9B CORE-FERRITE ZBF503D-01 L9D02 L9D00L9D06 Transformers Variable ResistorsResistors Capacitors C9A10 CER AC250V E2200P-MC9A13 C9A14 Switches Miscellaneous Printed Circuit Boards AccessoriesCosmetic Parts Screen Parts Ref # Part Name & Description WD-525427WD-62527 WD-52528 Screen Assembly Exploded View Models WD-52527 / WD-52528 / WD-62527 / WD-62528 Lamp Ballast DC Supply Fans Power Supply Analog Video Signal Path Digital Video Signal Path Sound Signal Path Command Input Circuitry Serial Control Lines Lamp Control Circuitry Shutter Control Models WD-52527 / WD-52528 / WD-62527 / WD-62528 Models WD-52527 / WD-52528 / WD-62527 / WD-62528 PWB-DM Audio Supply Switch ContentsDoubler Circuit AC-OFF Detect To Sensors & Fans To Ballast Contents ChassisTo Shutter Control TO/FROM Riser Sdram Address BUS Sdram Data BUSFMT Board Input BUS Control To DM Board Sdram Address M306V7FGFP#U0 SN74CBTD1G125DBVRTC7SA 08FU T883C446 MODEL/GROUP Numbers SYSTEM-5 Micro SYS5SN74HC132DB SN74LVC1G125DBVR Video Switching A05FP R0XC TmdspgndRsvda R1XC TA to Signal PWB VID-SW INPUT1COMP-1 COMP-2 DVI-1 DVI-2 IF+ UPC3221GV TO/FROM Interface TO/FROM Power AX823MEUK M306H2FCFPTC7SET08F To PWB-TERMINAL