Fender Stage 160 troubleshooting Help

[Jam]

I have a Fender Stage 160 amp and this weekend I was playing it and starting to sound odd to me like everything gets lost that comes out and like no bite like it use to have and I have I had to keep turning it up too any input where to start to look? Thanks

[Enzo]

Try plugging something in and out of the FX return a few times. Same at power amp in jack if it has one. That will tells us a lot.

[Jam]

When I was playing i had my pedal run from the effects send and recieve does that tell the same? Thanks

[jamesmafyew]

Yes, try it with nothing in the FX loop, then with just a straight cable from the send to the receive jack. Sometimes those jacks, which have switching contacts in them, can get crusty and go high-resistance.

Did you try both input jacks? Both channels? Is the problem present in all cases?

[Jam]

Thanks What I did was played and then I pluged a cable in the send input and it got louder but then I took the cable out and it wound not do it again. Would it act up at diiferent time with the jack? Thanks

[g1]

As jamesmafyew stated above: Connect one end of a cable into the send jack. Connect the other end to the return jack. Leave it connected and play. What happens?

[jamesmafyew]

If it's a dirty/corroded contact issue, yes, it could be intermittent, and you would be able to affect it by plugging and unplugging cables from the jacks. The way to treat this problem is to shoot some contact cleaner into the jack and work a plug in and out a bunch of times. You'd want to do it to both the send and return jacks (if that is in fact the cause of your issue).

[52 Bill]

And the jacks could have cold or broken solder joints on the pc board causing the same symptom.