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JVC A-X55 Service Manual

JVC A-X55
23 pages
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MODEL
A-X55
STEREO
INTEGRATED
AMPLIFIER
No.
2589
Mar.
1982
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JVC A-X55 Specifications

General IconGeneral
TypeIntegrated Amplifier
Power Output55W per channel into 8Ω
Frequency Response10Hz-50kHz
Total Harmonic Distortion0.02%
Signal-to-Noise Ratio100dB
Signal to noise ratio100dB
Dimensions435 x 120 x 350mm
Weight8.7kg
Input sensitivity2.5mV (Phono), 150mV (Line)
InputsPhono, Tuner, Aux, Tape
OutputsTape
Speaker load impedance4Ω to 16Ω

Summary

Specifications

Output and Distortion Specifications

Details output power, total harmonic, and intermodulation distortion.

Frequency Response and Damping Factor

Covers frequency characteristics and damping factor specifications.

Input Sensitivity and Noise Specifications

Lists input terminal specs and signal-to-noise ratios.

Control and Feature Specifications

Describes tone controls, filters, and loudness features.

General and Dimensional Specifications

Outlines general specs, power source, dimensions, and weight.

Technical Explanation of Dynamic Super-A

2-(1) Basic Configuration of Dynamic Super A Power Amplifier

Describes the fundamental setup of the Dynamic Super A amplifier.

2-(2) Dynamic Super A Circuit Operation

Explains the operational principles of the Dynamic Super A circuit.

Main Parts Location and Part Numbers

3-(1) Front View Parts Identification

Identifies components located on the front panel.

3-(2) Rear View Parts Identification

Identifies components located on the rear panel.

3-(3) Top View Parts Identification

Identifies components located on the top panel.

Block Diagram

Exploded View and Part Numbers

Amplifier Adjustment Procedures

6-(1) Drive Amp. Center Voltage Adjustment

Details the procedure for adjusting drive amplifier center voltage.

6-(2) Power Amp. Idling Current Adjustment

Details the procedure for adjusting power amp idling current.

Printed Circuit Board Assemblies and Parts Lists

7-(1) TXX-376 Equalizer Amplifier PC Board

Lists components for the TXX-376 Equalizer Amplifier PC Board.

7-(2) TXX-373 Drive Amplifier PC Board

Lists components for the TXX-373 Drive Amplifier PC Board.

7-(3) TXX-374 Power Amplifier PC Board

Lists components for the TXX-374 Power Amplifier PC Board.

7-(4) AC Unit PC Board Assemblies

Lists components for TPS-287C, TPS-287D, TPS-287E AC Unit PC Boards.

Packing Materials and Part Numbers

Accessories List

A-X55 Schematic Diagram

Power Supply Block for Designated Areas

Parts List with Specified Number for Designated Areas

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