My Racal 1992 is bringing up error 52 on the Channel A relay test (Relay C,
50 Ohm/1Meg switching), and error 56 on the Channel B relay test (Relay G,
x1, x10 switching).

Racal part numbers 23-7529 and 23-7528.

Can anyone help (if you have a dead 1991/1992 perhaps)?

Based in UK.
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Dave Partridge (remove xwy from replyto email address)