I have a little SX-450 here that had 2 blown outputs. I replaced all 4 with MJE15032G,s and I also replaced Q201-Q204 with KSA992,s. No caps were replaced. I matched up Q201 and Q203 to within a few points of each other. There was a little larger spread between Q202 and Q204, but still less than 10 points.
I now have a DC offset of ranging from -18mV to -23mV on the Left Channel. The offset on the Right channel is ranging from -16mV to -20mV.
The idle current for the Left channel is running 52.5mV. the Right side is at 61.6mV.
What would cause the DC offset to be so far negative, and the idle current to be so high?
Thanks for your help
Bubba57
I now have a DC offset of ranging from -18mV to -23mV on the Left Channel. The offset on the Right channel is ranging from -16mV to -20mV.
The idle current for the Left channel is running 52.5mV. the Right side is at 61.6mV.
What would cause the DC offset to be so far negative, and the idle current to be so high?
Thanks for your help
Bubba57