AV-20N3 AV-20NMG3 AV-20NMG3B | JVC AV-20N3/D, AV-20NMG3/-A specification

AV-20N3 AV-20NMG3 AV-20NMG3B

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No.52025

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JVC AV-20N3/D, AV-20NMG3/-A service manual AV-20N3 AV-20NMG3 AV-20NMG3B

Contents

Contents Specifications EntsAV-20N3 AV-20NMG3 Safety Precautions Features Memory SCL 2/SDA2Micro Computer VIDEO/CHROMA Decorder SCL 1/SDA1 Functions Front Panel Rear Terminal Remote Control Unit Model Name Main Difference ListPart Name Specific Service Instructions Disassembly Procedure Speaker KEY Assignment of Remote Control Unit Service MenuSystem CONSTANT-Ⅰ System CONSTANT-Ⅱ Setting of System Constant SET Setting item Setting contentsUser Setting Values Setting item Setting value Initial Setting Value of Service Menu PAL Secam PresetSound System Do Not Adjust Setting item Locations of Front Panel Buttons and LAM PS Replacement of IC301 if V/C DecoderProcedures Service Adjustments Before Starting Service AdjustmentAdjustment Items Measuring Instrument and Fixtures Basic Operation of Service Menu KEY Assignment of Remote Control Unit Service Menu Method of setting C, 3.DEF and 4.VSM PresetSetup Tour Should be OFF Service Menu Flow Chart Adjustment Locations Solder SideTOP Upperfocus Adjustments B1 Power SupplyFocus Adjustment If Circuit Adjustment Delay Point PointAGC AGC Take Over Other Video / Chroma Circuit Adjustment Method of adjustment without measuring instrument SUB BrightAd justment Remote SUB Colour Ⅱ Socket TintCRT BL Adjust Ad justment part Description RemoteSecam Control unit BL ACK Deflection Circuit Adjustment Position VSM Preset Setting VER. ScurveScurve TOP # P/C Magnets Purity / Convergence AdjustmentPurity Adjustment Static Convergence Adjustment Dynamic Convergence Adjustment Soldering Iron Replacement of Chip ComponentReplacement Steps AV-20N3 AV-20NMG3 AV-20NMG3B