YBA YC 201

YC201

No there is actually a number of issues and some of them related to a specific configuration of one IC that fails Yba was kind enough to let me have the schematic with detailed explanation of the problem .
I can e mail if any one needs

Mute in this machine is relay operated by the way ...

Kind regards
Sakis

Hello! I have the same problem, if possible, help solve it.
Thank you in advance!