JVC JA-S31 Service Manual

JVC
JA-S31
STEREO INTEGRATED AMPLIFIER
No. 2368
MAR. 1976

JVC JA-S31 Specifications

General

Type	Stereo Integrated Amplifier
Input Sensitivity (Phono/MM)	2.5mV
Input Sensitivity (Line/AUX)	150mV
Input Sensitivity (DIN)	150mV
Signal to noise ratio (line/AUX)	90dB
Signal to noise ratio (DIN)	90dB
Power Output (8 ohms, 20Hz-20kHz)	30 W
Speaker Impedance	4Ω to 16Ω
Speaker load impedance	4 to 16 ohms
Power Output	30W per channel

Summary

Product Specifications

System Block Diagram

Disassembly: Cover and Base Removal

Internal Component Identification

Mechanical Exploded Views

Front Panel Exploded View and Parts

Detailed breakdown and identification of front panel components and assembly.

Chassis Base Exploded View and Parts

Exploded view and part listing for the chassis base assembly.

Rear Panel Exploded View and Parts

Visual guide to rear panel components, connectors, and ports.

Circuit Board Assemblies and Parts

Main Amplifier Circuit Board (TAP-251B)

Circuit diagram and component list for the main amplifier board.

Tone Control Circuit Board (TAC-392)

Circuit diagram and component list for the tone control board.

Pin Jack Circuit Board (TSC-45B)

Circuit diagram and component list for the pin jack input/output board.

AC Primary Circuit Board (TPS-43B) - J-type

Circuit diagram and parts for the AC primary circuit board (J-type specific).

Packaging Materials

Included Accessories

Regional Parts Cross-Reference

Detailed Schematic Diagrams