You have Model 2 of the PSU,

It seems you changed the C109, that is 47uF / 50V ? You can use 63 Volts one, should even be better. If possible by a Rubycon at 105° or 130° if available/findable.

There is also the C404, 2200uF 10V, that could give problems sometimes.

But Johnny is the best on this, so let's see what he tells.

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