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

SPEAKER

AV-20N3

AV-20NMG3

AV-20NMG3B

FRONT CABI.

SPEAKER

CRT SOCKET	C
PWB	C	(×2)
PWB

MAIN PWB

C

(×2)

POWER

CORD

REAR

COVER

B (×1)

A (×6)

No. 52025

9

Image 9

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

Contents

Contents Ents SpecificationsAV-20N3 AV-20NMG3 Safety Precautions Memory SCL 2/SDA2 FeaturesMicro Computer VIDEO/CHROMA Decorder SCL 1/SDA1 Front Panel Rear Terminal Functions Remote Control Unit Main Difference List Part NameModel Name Disassembly Procedure Specific Service Instructions Speaker Service Menu KEY Assignment of Remote Control UnitSystem CONSTANT-Ⅰ System CONSTANT-Ⅱ Setting item Setting contents Setting of System Constant SETUser Setting Values Setting item Setting value Initial Setting Value of Service Menu Preset Sound System Do Not Adjust Setting itemPAL Secam Replacement of IC301 if V/C Decoder ProceduresLocations of Front Panel Buttons and LAM PS Before Starting Service Adjustment Service AdjustmentsAdjustment Items Measuring Instrument and Fixtures KEY Assignment of Remote Control Unit Service Menu Basic Operation of Service Menu C, 3.DEF and 4.VSM Preset Method of settingSetup Tour Should be OFF Service Menu Flow Chart Solder Side Adjustment LocationsTOP Upperfocus B1 Power Supply AdjustmentsFocus Adjustment If Circuit Adjustment Point Delay PointAGC AGC Take Over Other Video / Chroma Circuit Adjustment SUB Bright Method of adjustment without measuring instrumentAd justment Remote SUB Colour Ⅱ Tint CRTSocket Ad justment part Description Remote BL AdjustSecam Control unit BL ACK Position Deflection Circuit Adjustment VER. Scurve VSM Preset SettingScurve TOP Purity / Convergence Adjustment Purity Adjustment# P/C Magnets Dynamic Convergence Adjustment Static Convergence Adjustment Replacement of Chip Component Replacement StepsSoldering Iron AV-20N3 AV-20NMG3 AV-20NMG3B