ASR 10 with sampling problems

Hello,

i have bought an asr 10 rack. tested it today and the playback seems to be ok if i load sounds from the hdd. Problem is the left sample input. If i sample from right everything is fine. On the left input the vu meter is full and the amp flashes also when no cable is plugged in. I did the DC Offset diagnosis test on the env page and the left channel has a value about 32767 the manual says change the analog board. Maybe one of you guys got the same problem and solved it with changing a part on the analog board? or has an other tip for me?

I have the keyboard version and am not too familiar with the inside of the machines, but Syntaur is the main outlet for Ensoniq things all these years later. (apologies if you already know about them).

http://www.syntaur.com/