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Cerwin-Vega Manuals
Amplifier
A-400
Service manual
Cerwin-Vega A-400 Service Manual
Power amp
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Table Of Contents
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Table of Contents
A-400 Specifications
Required Test Equipment
Before Starting
Note to Reading Schematics
A-400 Circuit Description
Drive Circuitry
Output Stage
Protection Circuit
A400 Block Diagram
A-400 Alignment Points and PCB Location
A-400 Bias and DC Offset Adjustment
Initial "Common Sense" Trouble Shooting
A-400 Protection Circuit Problems
Output Stage Problems A-400
Chassis Assembly A-400
Transistor Grading (Assy 11102, Assy 11103, Assy 11104)
A-400 Composite Schematic Diagram
Drive PCB Assembly
Schematic Assy 8102 A-400 Drive Board
Output PCB
Output Schematic Board Assy 1103 A-400
Protect PCB Assembly A-400 and A-600
A-400 Protect Schematic Board Assy 1104
Input PCB Assy
Input Relay Schematic Board Assy 1105 (A-400)
LED PCB Assy
LED PCB Schematic Board Assy 11108-1
Service Addendums - A-400 Protect PCB
Parts List
Transformer Assembly A-400
Drive Board A-400
AC Power Wiring Harness A-400
Protect Harness A-400
Input PCB A-400
Output PCB A-400
Protect PCB A-400
Led Pcb A-400
Chassis A-400
Front Panel A-400
Ground Plate Assembly A-400
Heat Sink A-400
Final Assembly A-400
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A-400 Specifications
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Protection Circuit
4
A400 Block Diagram
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