Mitsubishi Electronics WD-62528, WD-62527, WD-52528 Speaker Grille Removal, SCREEN-ASSY Removal

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

CABINET FRONT DISASSEMBLY

SPEAKER GRILLE Removal

Pull the SPEAKER-GRILLE away from the cabinet to remove.

SCREEN-ASSY Removal

1)Remove 10 screws (a) from the upper cabinet rear cover (3 screws on each side and 4 screws across the top).

2)Remove screws (b) along the bottom of the SCREEN-ASSY (8 screws on 52 inch models, and 12 screws on 62 inch models),

3)Unplug the LL connector to the front CONTROL-PANEL.

4)Lift the SCREEN-ASSY up slightly and then pull away from the cabinet.

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Contents 2005 Page Contents Model WD-52527 / WD-52528 / WD-62527 / WD-62528 Servicing use only recommended Lead-Free solder refer to CharacteristicsSafety Precautions SCREEN-ASSY Removal Speaker Grille RemovalMetal Support Plate Removal BACK-COVER RemovalChassis 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 J8F01FC Complete Chassis RemovalChassis Sequence of Disassembly Assy PWB- Terminal Removal Figure Chassis Cover Removal 1 Remove the 4 screws aChassis Upper Shield Removal Figure PWB-POWER Removal FigurePWB-MICRO Removal Referring to Figure Chassis Rear Shield Removal FigurePWB-DM Removal Figure PWB-RISER and PWB-FORMAT Removal Referring to FigureLight Engine and Associated Components Light Engine ReplacementLight 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 Lenticular Screen and Fresnel Lens Removal Servicing the Lenticular Screen and Fresnel LensBezel Removal Front View Installing the Fresnel Lens & Lenticular Screen Lenticular Screen and Fresnel Lens InstallationOption Menu LED Indicator Diagnostics AV Reset DefaultsError Codes Activating the Adjustment Mode Remote Control Operational ModesTwo Electrical Adjustments Two Mechanical AdjustmentSaving Data Adjustment SelectionAdjusting Data Terminating the circuit adjustment modeLight Engine Adjustments Counter Clockwise Rotation Needed Trapezoid Distortion AdjustmentRotation Adjustment Clockwise Rotation NeededFormat Circuit Horizontal/Vertical Position Adjust- ment Micro / Terminal PWB Troubleshooting Power PWB Troubleshooting LCD Engine Internal Layout Lamp Protect Line Pb-Free Display Pb SolderChip Parts Removal Resistors, Capacitors, etc ReplacementChip Parts Removal Transistors Parts Ordering Critical and Warranty Parts DesignationParts Tolerance Codes Quick Reference for Common Parts Ref # Part Name & Description Integrated CircuitsDiodes TransistorsChip UDZS3.9B CoilsCORE-FERRITE ZBF503D-01 L9D02 L9D00L9D06 Capacitors TransformersVariable Resistors ResistorsC9A14 C9A10CER AC250V E2200P-M C9A13Miscellaneous SwitchesPrinted Circuit Boards AccessoriesCosmetic Parts WD-52528 Screen PartsRef # Part Name & Description WD-525427 WD-62527Screen 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 AC-OFF Detect Audio Supply SwitchContents Doubler CircuitTO/FROM Riser To Sensors & Fans To Ballast ContentsChassis To Shutter ControlTo DM Board Sdram Address BUSSdram Data BUS FMT Board Input BUS ControlSdram Address T883C446 MODEL/GROUP Numbers M306V7FGFP#U0SN74CBTD1G125DBVR TC7SA 08FUSN74LVC1G125DBVR SYSTEM-5 MicroSYS5 SN74HC132DBA05FP Video SwitchingR1XC R0XCTmdspgnd RsvdaDVI-1 DVI-2 TA to Signal PWB VID-SWINPUT1 COMP-1 COMP-2UPC3221GV IF+TO/FROM Interface TO/FROM Power AX823MEUK M306H2FCFPTC7SET08F To PWB-TERMINAL

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