I have this Farfalla I am still trying to get up and running. Story was it played for years until a bad storm with lots of lightning and stopped working after that.
What I have done so far is replaced the 3 rectifier's, 4 Capacitors, CN1 header and pins, and fuse clips on the power board. I have tested the CN1 plug while disconnected from the power board and all seemed to be close to spec.
Test results on CN1 were
Pins 1,2 Red- 176.7VAC:
3,4 Brown- 9.9VAC:
5,6 Yellow- 10.8VAC:
7,8 Blue- 46.1VAC:
9/10, 11/12 Green/White- 7.1VAC:
I originally plugged everything back in at once and turned it on. CPU LED came on went off Sound LED came on went off, as CPU LED started to come back on I seen the F2 fuse glow and eventually pop. I then disconnected all boards but the power and CPU board, LED came on went off then fuse blew again. So then I disconnected everything from the power board while just leaving CN1 connected to the power board. More of the same F2 glows then pops.
I need some advice on where to look next. I havent used the TP's on the power board yet because I cant get power to the board long enough to test anything. The only thing I can think of is pins 1,2 on CN1 are higher than spec but I dont know where to look to solve that.