Ms8 26su

[Retroman839]

Plan is to pull
The zener and r433 and check them out of circuit.

Also seems people double value of the parts when replacing parts in this circuit as it drives so hard genarates so much heat and cooks the traces and board here .

1/2 w to a 1 watt
25v 10uf to a 50v 10uf

 

[Retroman839]

Ok first I will check the Zener to q402 side
Measures out ok

OL in revers bias
.685 voltage drop the other way round

 

[Retroman839]

Also I got 50v 10uf
Nichicons ..
So I’m going to try swapping the pump up cap .. ..
But maybe r433 is or is not bad ..
But I could have done this first …
I will get another r433 and a better value 1/4 between rather than a 1/8 watt anyways to improve the circuit as it cooks as is