Hot rod deville 4 10 combo

[pgapro]

When i use the overdrive it switches back and forth between the clean channel.
Although when I use the clean channel its fine. Any suggestions? Please help I have a big show coming up and i need it fixed asap!!

[Chuck H]

Could be as simple as dirt in the jack. It could be as complicated as fluctuating voltages in the low V rail or similar. If I were inexperienced, and had a show coming up, I would get it into a shop soon. Most fix it yourself projects run longer than shop repairs. What test equipement do you own?

[Jazz P Bass]

Same old same old.
My take on the problem.
The big cement power resistors on the main board need to be resoldered.

[Ronsonic]

Same old same old.
My take on the problem.
The big cement power resistors on the main board need to be resoldered.

I'll see that diagnosis and raise:

Everything in that amp bigger than a 1/2W resistor needs to be resoldered.