PS48 is model for sub & where i suspect issue lies .
CD head unit seems to run ok , & can take a line out signal into an amp with audio present .
Can't seem to measure any voltages at secondary side of PSU within SUB unit .
CD head unit seems to run ok , & can take a line out signal into an amp with audio present .
Can't seem to measure any voltages at secondary side of PSU within SUB unit .
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