channel a has quit on 2:90

[Sailhound]

My channel A quits at higher volumes yet works when it is running quiet. Fuses are fine, tubes are all seated. Has this happened to anyone else?

Thanks

 

[mrcomputer]

You mean it cuts out when played hard the volume drops out or when you turn up the volume, at a particular spot, the volume drops out? If it's the later, its a bad volume pot (had that problem on my 20/20).

jbw

 

[Sailhound]

Hi there. It cuts out and quits completely. Adjusting the volume makes no difference, it's completely gone.

 

[mr_fender]

No, what he means is does turning the volume knob up high make it cut out, or does playing hard at any volume setting make it cut out?

 

[MesaGod666]

Ugh...I've had that happen before. Call Mesa and have them troubleshoot it. Sounds like you either have a bad pot, or you may need to have a technician check it out. I had an ancient 2:90 that I used for about 5 years straight and one day *poof* nothing. I had my tech check it out and he said that some of the wiring was fried and needed to be resodered. I got it fixed, but I soon after that bought a more modern 2:90.

 

[thunda1216]

Check the cable you are using for the footswitch. I had one with an intermittent short that drove me *NUTS* until I traced it down...

ty