Hitachi HA-4700 Manuals

Manuals and User Guides for Hitachi HA-4700. We have 1 Hitachi HA-4700 manual available for free PDF download: Service Manual

Hitachi HA-4700 Service Manual

Hitachi HA-4700 Service Manual (33 pages)

Brand: Hitachi | Category: Amplifier | Size: 4.96 MB

Table of Contents

Specifications
1
Features
1
Disassembly and Replacement
3
Construction of Power Bus
4
Method of Exchange the S401
4
Idle Current Adjustment
5
Output DC Adjustment
5
Checking the Super Linear Circuit
5
Cautions on Repairing and Replacing Parts
5
Description of the New Circuit
8
Super Linear Circuit
8
LED Power Meter Drive Circuit
8
Equalizer Amp. Circuit
8
Printed Wiring Board
11
The Circuit Symbol
12
Circuit Diagram
13
Block Diagram
19
Checking the Operation of the Protection Circuit
21
Front and Rear Panel
24
Replacement Parts List
26

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