Archive of the former Yahoo!Groups mailing list: Yamaha CS80
Subject: Re: HIgh Pitched Whine
From: bob@...
Date: 2015-06-11
OK... so I'm going to build a power soak to try and pin this down. ie. whether it is actually the PSU or if it's something elsewhere causing the issue.
Measuring about 0.6A on the +15V, and 0.65A on the -15V... Does that sound about right?