Linehand
Active Member
I recently purchased this original condition one owner stereo and after de-oxing switches and pots, its been sounding great last few days. Last night I added a monster power supply with voltage display which is fed from a variac (I have a Fisher 800c mostly original which I run at 110v ac). Well when I turned the Sansui on, one channel sounded a little weak, noticed the voltage at 110v and slowly brought the variac up to 120v at which point the Sansui went into protection mode (flashing red light). It quickly came back out of protection (green light) but there was no sound/output, no FM or AM radio and no tuning or signal strength meter movement at all. I powered down and then back on, it worked briefly then gave a little pop and back to red light protection mode, came back out (green light) but no more sweet music. I bypassed the preamp with another signal to main in but still have no output. All buss fuses are good on the power supply and relay protection boards, I haven't checked transistors or any of the fusible resistors.
So currently the unit powers on and lights up, the relay clicks and the contacts there look fine, the green protector light is on, but there doesn't seem to be any signal past that point.
I'm hoping that these symptoms as described might point to a specific culprit?
Eventually I will have a full rebuild done but I'm not ready at this time...
thanks!
Paul
So currently the unit powers on and lights up, the relay clicks and the contacts there look fine, the green protector light is on, but there doesn't seem to be any signal past that point.
I'm hoping that these symptoms as described might point to a specific culprit?
Eventually I will have a full rebuild done but I'm not ready at this time...
thanks!
Paul