Picture problem in Crosley 9-408

[stuben]

Originally Posted by Penthode

Maybe you should recheck all the twist locks you replaced three years ago? All the twist locks in my 630TS remained good and did not need replacing.

Thanks Penthode! That was my first thought so I unsoldered the positive lead of C220 section C (Riders service manual) which is an 80uf / 150 volt unit that has its positive soldered to ground.
I assume that this is the section that provides the B negative bias supply and the negative 100 volt rail. I measured 81.7uf. With my digital multimeter. This may not prove that the capacitor is good. I will have to remove the entire can and open it and inspect the individual parts which were Nichicon pencil shaped radials. I had one fail in the past, the end was bulging out but it didn’t vent and let out smoke.