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Yamaha CA-400 Service Manual

Yamaha CA-400
22 pages
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Yamaha CA-400 Specifications

General IconGeneral
Damping Factor30
TypeIntegrated Amplifier
Frequency Response10 Hz - 50 kHz
Total Harmonic Distortion0.05%
Signal to Noise Ratio90 dB
Channel Separation50dB
Speaker Load Impedance4-16 ohms

Summary

Disassembly and Component Removal

Disassembly Precautions and Cabinet Removal

Safety guidelines before disassembly and steps for cabinet removal.

Circuit Board Removal Procedures

Step-by-step instructions for removing internal circuit boards.

Front Panel and Switch Assembly Removal

Procedures for removing the front panel, power switch, and associated circuit boards.

Amplifier Adjustment Procedures

Bias Current Adjustment Method

Detailed steps and measurements for setting the bias current.

Printed Circuit Board Schematics and Layouts

Main Amplifier Circuit Board

Schematic and component layout for the main amplifier circuit board.

System Diagrams and Wire Coding

Overall Schematic Diagram

Parts List and Component Identification

Comprehensive Component Inventory

Detailed listing of all parts, including part numbers and descriptions.

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