I was hoping some of you tech guru's could take a peek at some scope pics of a Kawai K3 PS.
Here's a link to the thread.
(CAUTION. HUGE PICS attached to the thread. Not slow bandwidth friendly.
i'll try to use smaller dpi next time I post pics here.)
That thread went dead on me and I noticed that we have two areas with repair threads.. so I'm not sure which is the correct one to ask for repair tech help. Even a mod moved one of my repair threads from that forum to this one recently..
Anyway, here's the schematic for the PS
I am not sure what to think of the readings.
The schematic says I should have 9v AC, but I have 5v AC from the transformer instead.
The 0v AC is also 5v AC.
The "18v AC" taps are a bit odd too. One is clipped, the other more like a sine wave.
I have raw rectifier outputs shown.
I did not bother to put final outputs from the scope, there was no AC to be seen in the DC outs. Only got a reaction from the scope when I put it in DC mode.
Final output V's are stated in the thread as well.
If any of you have opinions if this PS is still working right, I'd love to hear your thoughts.