Mitsubishi Electronics WD-62527, WD-62528, WD-52528 specifications Chassis Sequence of Disassembly

Page 12

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

Chassis Disassembly / Accessing PWBs

Note: Although not individually indicated, unplug the required connectors in each disassembly step.

Chassis Sequence of Disassembly

REMOVE

Chassis Top Cover

(Fig. 1)

REMOVE PWB-POWER

(Fig. 3)

REMOVE

Assy PWB-TERMINAL

(Fig. 2)

REMOVE

Chassis Top Shield

(Fig. 3)

REMOVE

Chassis Rear Shield

(Fig. 4)

REMOVE

PWBs MICRO / FMT/ RISER

(Figs. 5 & 6)

REMOVE PWB-DM (Fig. 7)

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Contents 2005 Page Contents Model WD-52527 / WD-52528 / WD-62527 / WD-62528 Characteristics Servicing use only recommended Lead-Free solder refer toSafety Precautions Speaker Grille Removal SCREEN-ASSY RemovalBACK-COVER Removal Metal Support Plate RemovalRelease Cable Clamps & Disconnect CE Connector Chassis Mounting Screws RemovalClamp On the right side of the chassis from the rear AC CordChassis removal from the Cabinet Complete Chassis Removal J8F01FCChassis Sequence of Disassembly Chassis Cover Removal 1 Remove the 4 screws a Assy PWB- Terminal Removal FigurePWB-POWER Removal Figure Chassis Upper Shield Removal FigureChassis Rear Shield Removal Figure PWB-MICRO Removal Referring to FigurePWB-RISER and PWB-FORMAT Removal Referring to Figure PWB-DM Removal FigureLight Engine Replacement Light Engine and Associated ComponentsLight Engine Removal Procedure Light Engine Rear ViewPreliminary 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 RemovalBezel Removal Front View Lenticular Screen and Fresnel Lens Installation Installing the Fresnel Lens & Lenticular ScreenOption Menu AV Reset Defaults LED Indicator DiagnosticsError Codes Remote Control Operational Modes Two Electrical AdjustmentsTwo Mechanical Adjustment Activating the Adjustment ModeAdjustment Selection Adjusting DataTerminating the circuit adjustment mode Saving DataLight Engine Adjustments Trapezoid Distortion Adjustment Rotation AdjustmentClockwise Rotation Needed Counter Clockwise Rotation NeededFormat Circuit Horizontal/Vertical Position Adjust- ment Micro / Terminal PWB Troubleshooting Power PWB Troubleshooting LCD Engine Internal Layout Lamp Protect Line Pb Solder Pb-Free DisplayReplacement Chip Parts Removal Resistors, Capacitors, etcChip Parts Removal Transistors Critical and Warranty Parts Designation Parts OrderingParts Tolerance Codes Quick Reference for Common Parts Integrated Circuits Ref # Part Name & DescriptionTransistors DiodesCoils Chip UDZS3.9BCORE-FERRITE ZBF503D-01 L9D00 L9D02L9D06 Transformers Variable ResistorsResistors CapacitorsC9A10 CER AC250V E2200P-MC9A13 C9A14Switches MiscellaneousAccessories Printed Circuit BoardsCosmetic Parts Screen Parts Ref # Part Name & Description WD-525427WD-62527 WD-52528Screen 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 DetectTo Sensors & Fans To Ballast Contents ChassisTo Shutter Control TO/FROM RiserSdram Address BUS Sdram Data BUSFMT Board Input BUS Control To DM BoardSdram Address M306V7FGFP#U0 SN74CBTD1G125DBVRTC7SA 08FU T883C446 MODEL/GROUP NumbersSYSTEM-5 Micro SYS5SN74HC132DB SN74LVC1G125DBVRVideo Switching A05FPR0XC TmdspgndRsvda R1XCTA to Signal PWB VID-SW INPUT1COMP-1 COMP-2 DVI-1 DVI-2IF+ UPC3221GVTO/FROM Interface TO/FROM Power M306H2FCFP AX823MEUKTC7SET08F To PWB-TERMINAL
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