Arcam A75 - Manuals

Arcam A75 – Manual in PDF format online.

Manuals:

Manual Arcam A75

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Summary

Page 2 - Contents List

Contents List ! Contents list ! Circuit description ! Service guide ! Circuit diagrams ! Component overlays ! Circuit board parts list ! General assembly parts list

Page 3 - The Pre-amp ±15V supply comes from linear regulators Z300,301.

A65/75/75P Plus Circuit Description PSU In order get the output devices to turn fully on and achieve the greatest efficiency, an auxiliary rail is formed from a charge pump driven by the main AC outputs from the transformer. C304,305 & D301,302 charge on alternate cycles. In the other cycle the ...

Page 4 - Fault diagnostics; Fault Action; Power supply test points; Position Voltage

A65, A75 & P75 Service Guide Fault diagnostics Fault Action No power Check mains fuse Check transformer connections Check power supply rails Stuck in protection Check power supply rails Check protection circuit voltages Check for dry joints on o/p devices Intermittent audio on one channel Check ...

Arcam Manuals