Dr. Ear
Super Member
Got a rare black A-960 II today. The amp looks like new (I will post pics later on). The previous owner told me, that "there is a no sound coming out". Definitely true. Apparently somebody has already tried to repair it without success. The power transistors (Sanken A1169/C2773) on the right channel were desoldered. Both are shorted, so are the drivers (A968/C2238), too. I did not look further by now.
My major problem is the Main Direct switch. It does not work any more, neither electrical nor mechanical. The rivets were seriously bent. I could halfway restore their original shape. But, the switch does not hold the position which activates "Main Direct". The plastic rails which guides the metal axle is worn out. I would like to replace the switch. Is there any drop in replacment available? It has a 2x9 pin arrangement (pls see attached pic).
BTW, I would appreciate any hints which parts to check before I drop in the new transistors.
My major problem is the Main Direct switch. It does not work any more, neither electrical nor mechanical. The rivets were seriously bent. I could halfway restore their original shape. But, the switch does not hold the position which activates "Main Direct". The plastic rails which guides the metal axle is worn out. I would like to replace the switch. Is there any drop in replacment available? It has a 2x9 pin arrangement (pls see attached pic).
BTW, I would appreciate any hints which parts to check before I drop in the new transistors.