Mitsubishi Electronics WD-62528, WD-62527 Servicing the Lenticular Screen and Fresnel Lens

Page 22

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

SERVICING THE LENTICULAR SCREEN AND FRESNEL LENS

CAUTION: Wear gloves when handling the Lenticular Screen and Fresnel Lens.

This prevents cuts and finger prints. Do not place Fresnel Lens in the sun. This may cause fire and heat related injuries.

Lenticular Screen and Fresnel Lens Removal

1.Remove the screen assembly as shown in the Cabinet Disassembly procedure.

2.Remove the four screws (a) to remove the bottom of the SCREEN-FRAME-BOTTOM . (Figure 1)

3.From the front of the screen assembly, slide the BEZEL out the bottom of the Screen Frame. (Figure 2)

4.From the rear of the screen assembly, carefully slide the Lenticular Screen and Fresnel Lens combination from the Screen Frame. (Figure 3)

Note: When separating the Lenticular Screen from the Fresnel Lens, use caution while prying the Screen and Lens apart. Use a slot type screw driver, and remove the pressure sensitive double sided tape.

Figure 1: SCREEN-FRAME-BOTTOM Removal (Rear View)

Page 22

Image 22
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 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 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 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 RemovalBezel Removal Front View Lenticular Screen and Fresnel Lens Installation Installing the Fresnel Lens & Lenticular ScreenOption Menu AV Reset Defaults LED Indicator DiagnosticsError Codes Two Mechanical Adjustment Remote Control Operational ModesTwo Electrical Adjustments Activating the Adjustment ModeTerminating the circuit adjustment mode Adjustment SelectionAdjusting Data Saving DataLight Engine Adjustments Clockwise Rotation Needed Trapezoid Distortion AdjustmentRotation Adjustment 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 DisplayChip 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 & DescriptionTransistors DiodesCoils Chip UDZS3.9BCORE-FERRITE ZBF503D-01 L9D02 L9D00L9D06 Resistors TransformersVariable Resistors CapacitorsC9A13 C9A10CER AC250V E2200P-M C9A14Switches MiscellaneousPrinted Circuit Boards AccessoriesCosmetic Parts WD-62527 Screen PartsRef # Part Name & Description WD-525427 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 Doubler Circuit Audio Supply SwitchContents AC-OFF DetectTo Shutter Control To Sensors & Fans To Ballast ContentsChassis TO/FROM RiserFMT Board Input BUS Control Sdram Address BUSSdram Data BUS To DM BoardSdram Address TC7SA 08FU M306V7FGFP#U0SN74CBTD1G125DBVR T883C446 MODEL/GROUP NumbersSN74HC132DB SYSTEM-5 MicroSYS5 SN74LVC1G125DBVRVideo Switching A05FPRsvda R0XCTmdspgnd R1XCCOMP-1 COMP-2 TA to Signal PWB VID-SWINPUT1 DVI-1 DVI-2IF+ UPC3221GVTO/FROM Interface TO/FROM Power AX823MEUK M306H2FCFPTC7SET08F To PWB-TERMINAL
Related manuals
Manual 110 pages 60.95 Kb