Contents
Circuit Description
Test Equipment
Disconnecting Clamp Circuits
Amplifier Circuit Testing
Clamp Circuit Testing
Fault Finding
Modifications
Clamp Circuit
Replacing a Clamp Board
Conversion of a 405 to a Mono 180 watt amplifier
Replacing Transformer
Replacing Amplifier Modules
Π405-2
Assembly Diagram
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Circuit Diagram M12333 iss. 2 - Amplifier PCB M12368 iss. 5 & 6
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Circuit Diagram M12333 iss. 3 - Amplifier PCB M12368 iss. 7
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Circuit Diagram M12333 iss. 4 - Amplifier PCB M12368 iss. 9
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Circuit Diagram M12333 iss. 5 - Amplifier PCB M12368 iss. 9 & 10
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Amplifier Board layout M12368 iss. 9 & 10
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Circuit Diagram M12333 iss. 6 - Amplifier PCB M12565 iss. 3
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Amplifier Board layout M12565 iss. 3
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Circuit Diagram M12333 iss. 7 - Amplifier PCB M12565 iss. 5 21
Circuit Diagram M12333 iss. 8 - Amplifier PCB M12565 iss. 6
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Circuit Diagram M12333 iss. 9 - Amplifier PCB M12565 iss. 7
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Circuit Diagram M12333 iss. 10 - Amplifier PCB M12565 iss. 7
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Keith Snook modifications Click here
