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JVC A-GX1 - Service Manual

JVC A-GX1
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A-GX1/A-GX1B
JVC
SERVICE
MANUAL
A-GX1
Silver
Contents
Page
Page
Safety
PrecalitiOns
siiccamiseteeraietencteies,
SPST
3.
BIOCK
DidGraM
iivisincsi
carinii
ease.
1S
Service
PreCautiOns...........cccssccccssssssserescceessscrseeseesnceee,
D7
4.
Wiring
Diagiam
io
Aine
aun.
“TSO
|;
‘SbSCHICATIONS
acs
ancdimiastitcunewne
meena.
ee
5.
Schematic
Diagram
2.
Removal
and
Reassembly
Procedures..................
1-3
Parts
List.........c
eee,
S@Parate-volun
Insertion
QD
Or
o
Py
No,
2810
This
manual
combines
two
single
volumes;
Service
manual
and
Parts
list.
Feb
1985
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JVC A-GX1 Specifications

General IconGeneral
BrandJVC
ModelA-GX1
CategoryAmplifier
LanguageEnglish

Summary

Safety Precautions

Leakage Current Test Procedure

Procedure to check for electrical shock hazard after reassembly.

Component Handling and Voltage Checks

Advice on component handling, voltage checks, and line voltage setting.

Service Precautions

Component Handling During Service

Advice on handling components during disassembly and reassembly.

Product Specifications

Output Power and Distortion

Technical specs for output power and total harmonic distortion.

Frequency Response and Input Specs

Technical specs for frequency response, input sensitivity, and impedance.

Signal-to-Noise Ratio and Loudness

Technical specs for signal-to-noise ratio and loudness control.

Dimensions and Regional Differences

Unit dimensions, weight, and specification variations by area.

Removal and Reassembly Procedures

Main P.C. Board Removal Steps

Step-by-step guide for removing the main printed circuit board.

Reassembly Screw Type Guidance

Information on different screw types for correct reassembly.

Block Diagram

Heat Sink Deformation Caution

Caution regarding heat sink deformation during P.C. board removal.

Wiring Diagram

Voltage Selector Identification

Location and role of the voltage selector in the wiring diagram.

Schematic Diagram

Diagram Symbol Explanations

Explanations of symbols indicating power and signal flow.

Main Parts Identification

Top View Component Locations

Identification of main parts visible from the top.

Front Panel Component Locations

Identification of main parts on the front panel.

Rear Panel Component Locations

Identification of main parts on the rear panel.

Safety Part Markings

Safety Component Indicators

Marks indicating safety-critical components.

Exploded View and Part Numbers

Exploded View Diagram

Exploded view showing part assembly and numbers.

Component Parts List - Categories

Transistors and Diodes

Lists for transistors, diodes, their part numbers, descriptions, and makers.

Integrated Circuits and Coils

Lists for ICs and coils, with part numbers and descriptions.

Safety Markings and Area Key

Key for safety component markings and designated areas.

Printed Circuit Board Details

Main Amplifier Board Layout

Component layout and parts for the Main Amp P.C. Board.

PC Board Area Variations

Note regarding variations in PC boards based on designated areas.

Printed Circuit Board Component Layouts

Amplifier and Power Supply Boards

Component locations for Power Amp, Volume/Balance, Tone Control, Power Boards.

Auxiliary and Peripheral Boards

Component locations for Head Phone, AC Outlets, Transformer Boards.

Detailed Component Part Lists

Transistors, Diodes, ICs, Coils, Capacitors

Comprehensive lists of components with part numbers and specifications.

Safety Markings and Area Key

Key for safety component markings and designated areas.

Capacitor Data Sheets

Capacitor Specifications

Detailed list of capacitors with part numbers and specifications.

Resistor Data Sheets

Resistor Specifications

Detailed list of resistors with part numbers and specifications.

Resistor Data Sheets (Continued)

Resistor Specifications

Detailed list of resistors with part numbers and specifications.

Miscellaneous Parts and Assemblies

Circuit Board Assemblies

Part numbers for various circuit boards.

Connectors, Jacks, and Terminals

Part numbers for AC outlets, pin jacks, and speaker terminals.

Switches, Relays, and Clips

Part numbers for push switches, relays, and fuse clips.

Chassis and Plate Components

Part numbers for tie bands and earth plates.

Printed Circuit Board Assemblies

Equalizer and AC Outlet Boards

Details on ENH-060 Equalizer and TPS-334 AC Outlet boards, including variations and parts.

Component Data and Miscellaneous Parts

Capacitors and Resistors Specifications

Detailed lists of capacitors and resistors with part numbers and specifications.

Plugs, Boards, and Safety Marks

Part numbers for plugs, circuit boards, and safety markings.

Packaging and Shipping Information

Packing Materials

Part numbers for packing fillers and cases.

Product Accessories List

Documentation and Safety Information

Part numbers for instruction books, safety sheets, and caution sheets.

Warranty and Service Information

Part numbers for warranty cards, service information, and agency details.

Fuses and Area Designation Key

Part numbers for fuses and the key for designated areas.

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