Mitsubishi Electronics VS-60609 service manual Introduction, Product Safety Notice

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MODELS: VS-45609 / VS-50609 / VS-55609 / VS-60609 / VS-60719 / VS-70709

INTRODUCTION

This service manual provides service instructions for PTV Models VS-45609, VS-50609, VS-55609 and VS-60609 which use the VZ9 chassis, and PTV Model VS-60719 and VS-70709 which use the VZ9+ chassis. Service personnel should read this manual thoroughly before servicing these chassis.

This service manual includes:

1.Assembly and disassembly instructions for the front and rear cabinet components.

2.Servicing of the Lenticular Screen and Fresnel Lens.

3.Servicing printed circuit boards (PCBs).

4.CRT replacement procedure.

5.Electrical adjustments.

6.Chip parts replacement procedures.

7.Circuit path diagrams.

The parts list section of this service manual includes:

1.Cabinet and screen parts.

2.Electrical parts.

Schematic and block diagrams of the above listed models are included in this service manual for better under- standing of the circuitry. PCB drawings are also included for easy location of parts and test points.

PRODUCT SAFETY NOTICE

Many electrical and mechanical parts in television receivers have special safety related characteristics. These characteristics are often not evident from visual inspection nor can the protection afforded by them necessarily be obtained by using replacement components rated for higher voltage, wattage, etc.

Replacement parts which have special safety characteristics are identified in this service manual.

Electrical components having such features are identified by shading on the schematic diagram and by bold type in the parts list of this service manual. The replacement for any safety part should be identical in value and characteristics.

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Contents Mitsubishi Digital Electronics AMERICA, INC VZ9Models Page Contents Service Parts List Circuitry Block Diagrams Chip Parts Replacement Replacement PartsIntroduction Product Safety NoticeLeakage current check Safety PrecautionsRadiation warning Refer to Parts List for Part Numbers Cabinet Disassembly Front ViewFront Cabinet Disassembly Rear Cabinet Disassembly Cabinet Disassembly Rear ViewPage Table a Size Length1c. VS-70709 Cabinet Separation Precedure Cabinet Separation Procedure VS-70709DiamondShield Installation Procedure DiamondShield Removal ProcedureServicing the Diamondshield Top & Bottom Molding Clips Side Molding ClipsMajor Parts Locations Chassis Removal and PCB LocationsRemoval of the CRT CRT ReplacementPage Adjustment procedures after replacing the CRTs Test Signal Electrical AdjustmentsMonoscope Signal Color Bar SignalOption Menu Setup Initial SettingsDefault Settings Description Initial SettingError Code Operational Check LED Indicator DiagnosticsError Codes AV MemoryActivating the Circuit Adjustment Mode Adjustment FunctionsSelection of adjustment Functions Adjustment Items Changing DataConvergence Adjustment Mode Sub Functions Fine Conv PressCursor Cursor CoordinatesDisplay Saving Data and Exiting the Convergence ModePIP Function Adjustment Items ListAudio Function HR Function Convergence Mode ItemsConv Misc Conv GreenConv Blue Conv REDDF Function VkeyPage Audio Circuit Purpose Service ModeInput Level Audio Function Abbrev DataDynamic Focus Symptom High Voltage Control SymptomConvergence Mode High Voltage Circuit PurposeFocus Verification Lens Focus Symptom Blurred pictureMENU-0-1-5-9 Color PressAbbr Data Service Mode CRT Cutoff SymptomCRT Circuit Purpose CRT CurrentService Mode Activate …….. MENU-0-1-5-7 Low Color TemperaturePIP Insert Picture Color and Tint SymptomPIP Circuit Purpose On-screen display is not positioned correctly 13. Cb, Cr Offset SymptomCb, Cr Circuit Purpose Abbr Data Convergence Circuit Purpose Height and Vert. Linearity SymptomDeflection Circuit Purpose Convergence Circuit Purpose Coarse Convergence Color edging at the top, bottom and sides of the picture Fine Convergence SymptomChip Parts Removal Transistors ReplacementChip Parts Removal Resistors, Capacitors, etc Parts Ordering Critical and Warranty Parts DesignationParts Tolerance Codes Model AbbreviationsQuick Reference for Common Replacement Parts Remote ControlCRT Assemblies High Voltage / Deflection ComponentsIntegrated Circuits TubesTransistors DiodesCOIL-CHOKE ZTS6620 CoilsResistors TransformersVariable Resistors Carbon 1/4W 10K-J R521R529 Fuse 1/2W 0.82-JComposition 1/2W 1M-K Capacitors & TrimmersComposition 1/2W 4.7M-K CER-CHIP SL50V 470P-J CER-CHIP CH50V 82P-JCER-CHIP CH50V 47P-J CER-CHIP CH50V 68P-JC554 C552PLA-PP 200V 0.47M-J C568Poly 250VAC 0.1M-M C902 C901Poly 250VAC 0.1M-M C903 CER 250VAC 1000P-M C904Printed Circuit Boards AccessoriesMiscellaneous Screen Parts Screen Assembly Circuitry Block Diagrams Power SupplyVIDEO/COLOR Signal Path Sound Circuit Deflection Protect Circuit Convergence Circuitry Control Circuit Page Page Page Page Page Page Page Page Page Page Page