Mitsubishi Electronics WS-55513, WS-65513, WS-48613, WS-48513 manual 2003

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T ECHNICAL

RAINING

2003

V23 Chassis

Projection Television

Technical Training &

Troubleshooting Manual

Copyright © 2003, Mitsubishi Digital ElectronicsAmerica, Inc.

All Rights Reserved

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Contents V23 Page 2003 Page Power Supply Table of Contents Introduction ... New TechnologiesDisassembly and Service Alignment ProceduresConvergence Circuitry Troubleshooting TipsVideo/Color Circuitry Sync, Deflection and High VoltageIntroduction FeaturesFeatures NetCommand Icons NetCommandButton Function Format Memory Card ReaderCompatibility PerfectColorDigital Visual Interface DVI MonitorLinkAcronyms Transition Minimized Differential Signaling TmdsDisplay Data Channel DDC Single-Link TmdsHot Plug Detect HPD High-bandwidth Digital Content Protection HdcpDVI Input Block Diagram MonitorLink DVI ConnectorV23 Chassis DVI Input Block Diagram Service Menu Access Codes Lightbox Chapter Disassembly and ServiceMain Chassis Removal DM ReplacementMain Chassis Removal PCB Locations PCB & Major Component Locations Convergence IC ReplacementV23+++ Composite Cabinet Back V23+++ Cabinet Front DisassemblyChapter Alignment Procedures Initial SetupOption Menu Initial Setup Main Menu Default Settings Activating the Circuit Adjustment Mode Circuit Adjustment ModeSaving Adjustment Data Selection of adjustment Functions Adjustment ItemsTerminating the Circuit Adjustment Mode NEW FEATURE… Service Mode ResetConvergence Adjustment Mode Activating the HD mode when no HD signal is availableConvergence Mode Functions Alignment Data Storage Locations Fine Convergence ModeLow Energy Standby Regulator Chapter Power SupplyLow Energy Mode Low Energy Mode ActivationRegulation User Setup MenuLow Energy Power Distribution Start-up Standard Standby SupplyTime Shift Recording Power Supplies Standby Power DistributionStandard Standby Supplies Time Shift Supply Power Distribution Switched Supplies Regulator Troubleshooting Power DistributionsFlashes-Stops-Flashes-Stops-etc If the LED does not flash Page Basic µPC Requirements Chapter Control CircuitryReset Circuitry Input Command Circuitry Page Serial Data Lines ΜPC Parallel InputsAC-OFF Input RAY Protect Short DetectBWC Band Width Control Parallel OutputsFlash Circuit Chapter Video/Color Circuitry PCB-TERMINAL Video Path PCB-SIGNAL Video Path CRT Drive & Protect Circuitry Digital Signal Path Monitor Out Circuit Chapter Sync, Deflection & High Voltage VGA Sync Signal PathPage Page Horizontal Deflection Vertical DeflectionHorizontal Deflection DC Supply Circuitry Deflection Loss Detection HV & HV Regulation Ray Protect Page Chapter Convergence Circuitry Convergence Circuitry Overall Block DiagramConvergence Waveform Generator & D/A Converter Waveform Generator & D/A ConverterLow Pass Filter and Summing Amplifiers LPF & Summing AmpsConvergence Output Circuitry Convergence Output CircuitryDTV DVI VGA Chapter Sound CircuitryOverall Sound Circuitry Block Diagram Digital Audio Output Overall Sound Signal PathPage Chapter Troubleshooting Tips Using The Front Panel LEDReading the Error Codes NetCommandTM Control Problems DM Module CheckCRT Phosphor Protection