Hi Guys, I'm new here. Need help for my Clavinova which is Japan version rated 100v 55w. Our supply here is rated 220V. I don't want to use a step down transformer. Attached is the schematic of the power supply part. If i'm correct, I find 2 secondary windings with AC output of 12v and 5v. Now my question is, if i can't find a transformer with equivalent AC output, can i use 2? I'm thinking of using an ATX power supply bypassing the regulators but i have no idea what is the +B on the diagram. What transformer rating to look for, 12v 0v 12v, 0v 5v?
Note:
IC1 = +5v regulator
IC2 = +12v regulator
IC3 = -12v regulator
D1, D2 = 3A 200v diodes
View attachment 67327
Need any ideas, thanks
Note:
IC1 = +5v regulator
IC2 = +12v regulator
IC3 = -12v regulator
D1, D2 = 3A 200v diodes
View attachment 67327
Need any ideas, thanks
Last edited: