Accuphase P-260 bias adjust procedure

RAP

New Member
Hi all,
Recently i acquired a near mint and hardly used set consisting of c222 and p260. I changed from 220 to 240 volts for my country. Also replaced some caps. The schematic on hifi engine doesn't show precise bias adjustment procedure like the service manual of the p266 does show. Anybody have the correct procedure and/or service manual?
Thanks!
 
Hey, I have a broken P-260 here with one channel being defective.
From the schematic, I have seen that there are 3 potmeters, one is probably for DC balance, while one is for normal mode bias and the other for class A bias.
There is no voltage given for measuring on the test points, but the inbound current on the rails. If you insert an ammeter and measure that, and adjust bias to reach the value given, you should be fine.
Best Regards,
ampkeller
 
Back
Top Bottom