Can I swap an internal PSU with an external power supply

bertus

Joined Apr 5, 2008
22,270
Hello,

Did you measure between S2- and S2+ ?
There can be no different voltages, as the S2- and S2+ are one coil of the transformer.
So measure between the pins 4 and 5 of J702.

When you do measure a significant more than the 4.3 Volts AC as in post #11, there must me an excessive load on the 5 Volts.

Bertus
 
Top