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Procedure for removing and replacing a PSU module

Observe the following procedure for removing a PSU module from the amplifier, prior to replacement, or

during diagnostics:

1. Ensure the PSU rails are fully discharged, using the above discharge procedure.

2. Remove the 3-pin AC mains connector from the input of the PSU. Squeeze the connector to compress and

open the clip, and then pull upwards on the connector body to disconnect it.

3. Remove the 4-pin high-voltage DC supply connector from the PSU. Squeeze the connector to compress

and open the clip, and then pull upwards on the connector body to disconnect it.

4. Remove the 15-pin low-voltage DC supply and control connector from the PSU. This can be removed by

pulling gently on the black cables at either side of the connector body, to lift it vertically out of the socket.