Mitsubishi Electronics mitsubishi Electrical Adjustments, Test Equipment, Test Signals

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MODEL: WD-52327 / WD-62327

ELECTRICAL ADJUSTMENTS

Note: Perform only the adjustments required.

Do not attempt an alignment if proper equipment is not available.

Test Equipment

•Oscilloscope (Unless otherwise specified, use 10:1 probes)

•Signal Generator (NTSC Color Bar)

Test Signals

A. Internally Generated Square Pattern Signals

B. Color Bar Signal

Use the color bar signal shown below, unless otherwise specified in this manual.

100%

75%

40%

40%

1H

Split-Field Color Bars (100% window)

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Contents Specifications Mitsubishi Digital ELECTRONICS.AMERICA, INCPage Contents Schematic Diagrams Product Safety Notice IntroductionSafety Precautions Cold CheckCabinet Disassembly Front View WD-52327 / WD-62327Rear Disassembly FILTER-COVER RemovalCOVER-BACK Removal Rear Plate RemovalChassis Removal Procedure Chassis RemovalModel WD-52327 / WD-62327 Shield Removal Page Accessing The Lamp Ballast Removing the Right Support Rear ViewOptical Engine Replacement Model WD-52327 / WD-62327 Removing the Optical Engine DMD Termal Sensor Removal Figure Bottom Plate & Black Bracket RemovalInstalling the Optical Engine Black Support BracketServicing 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 ScreenTest Equipment Electrical AdjustmentsTest Signals Model WD-52327 / WD-62327 Initial Setup Option Menu SetupMemory Defaults LED IndicationsModel WD-52327 / WD-62327 LED Diagnostic Check Circuit Adjustment ModeMain Matr DDP List of Service Adjustment Items Main MatrixActivating & Selecting an Internal Test Signal Video Circuit Purpose White Balance Symptom To center picture on the screenRear Disassembly Mechanical AdjustmentsFront Disassembly Picture Rotation Adjustment Horizontal Keystone Distortion Vertical Keystone Distortion Keystone AdjustmentSmall Mirror Assembly Front View Quick Reference for Common Replacement Parts Customer Replaceable PartsIC7A00 IC9A10HIC STR-W6735 IC9A20D9A61 WD-52327, b WD-62327 Ref # Part Name & DescriptionD9A60 L9D02 L9D00L9D01 Chip Type Resistors Listed by Value Conventional Resistors By Ref # Part Name & DescriptionR9A03 Comp 1/2W 1M-K R9A05Conventional Capacitors By Ref # Part Name & Description WD-52327, b WD-623275 Ref # Part Name & DescriptionChip Type Capacitors Listed by Value C7A00 C9A05CER AC250V E2200P-M C9A06 CER AC250V E2200P-M Ref # Part Name & DescriptionC9D00 Poly 250VAC 0.1M-M C9D01Poly 250VAC 0.1M-M C9D02 Poly 250VAC 0.1M-M C9D03Printed Circuit Boards WD-62327 WD-52327 Model Legend a WD-52327, b WD-623275Model WD-52327 / WD-62327 Model WD-52327 / WD-62327 Model WD-52327 / WD-62327 Model WD-52327 / WD-62327 Model WD-52327 / WD-62327 Model WD-52327 / WD-62327 Model WD-52327 / WD-62327 Model WD-52327 / WD-62327 Model WD-52327 / WD-62327