Output Seems To Lose Drive/Volume

[vansinn]

I do realize this is an older thread, but just want to make known an observation I've had:
One of the input jacks has a build-in switch; if this is worn-out, it can cause a nice drop in the signal being fed into the whole unit.
You'll notice this as mostly a drop in distortion gain, though it may be felt also on the cleans.

[MarshallJMP]

Yes this also true but only if you use the rear jack.

[Rawk777]

I was testing the emulated outputs on mine, and I seem to have that problem with the 4x12 sim option, but not with the 2x12 option.

I guess the cam sim switch needs some attention.

Do these switches can be cleaned or replaced easily?

[MarshallJMP]

If you have some desoldering experience they are not so hard to replace.Already did this a few times.

[rnolan]

Since it's a toggle switch, a spray with decent contact cleaner may also fix it ? (certainly worth a try). On the up side, I don't like the 4 x 12 cab sim much, the 2 x 12 sounds heaps better IMHO