Marantz 4230 vintage receiver

Gerald_48

Honorable
Mar 5, 2012
2
0
10,510
0
Hello,
I have a vintage Marantz 4230 receiver that makes a crackling, popping sound from the speakers when I turn on the power. What might cause this problem? So far I have replaced two of the smaller capacitors, 50v, 47uF, since they were obviously faulty (loose leads)and I have lubricated (deoxited) all the controls.
 
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