Thanks ghazzer for the info. I looked really hard at the board schematics and there is a different trace path from vr03 to vr04. Here's my problem pretty much everything has been gutted on the dreaded f2980 board along with both f3058's except the 1/4 watt resistors which have been pulled and tested. When I slowly bring up the power on the variac relay kicks in after 5.3 seconds at full song that I can live with. The problem is that right channel is perfect on dc and bias but, the most I can get out of the trimmer is 0.61 mv while dc on vr01 is dead on at 0.00 mv after 3 or 4 minute warm up. So what I did after reading your post was reposition the trimmer and had no reading at all. I then replaced the trimmer with a new one no difference. Now keep in mind this 6700 was a dead horse when I started on it and last week when I started checking voltages OOPS!. Well I'm getting old and for some reason my arthritic hand decided to let go of the probe and bang! it hit terminal 26 and took out half of the power supply. No problem replaced a couple D313's and 2 zeners back up and running. The right output sounds beautiful the left sounds distorted. I tested pretty much everything on the left side including the 2581's and 1106's. all the board traces are great I did find some corroded leads from the sui glui. Any Ideas are surely welcome. I really love restoring these vintage machines. I had an uncle that was an audiophile back in the 60's and 70's and of course he had all the top stuff. Sansui, Teac/Tascam. etc. I learned what I could form him unfortunately he passed away 2 years ago just as I was getting serious about saving this stuff. Right now I'm up to 15 decent receivers and at least 12 Teac, Tascam and a couple of Tandberg Td 20a's. I have been following your posts as well as the other Sansui addicts and I want to personally thank all of you for all the advice and help you have given people like me. The day is coming when it will get almost impossible to keep these vintage units running. Smelly boards and rosin smoke forever Gotta love it!