Problem with zx350 swollen caps?

[tdotaz]

Hey guys, I picked up a zx350 for $60 bucks locally in good physical condition, however one of the channels produces a distorted signal. It produces a loud scratching, as well as a distorted signal everytime the low frequencies hit. The other channel is fine. I took it apart, and two of the caps do definitely look swollen. The person offered to give me a refund.. or some of the money back if I want to fix it. I was going to replace the caps anyways but I would just like to make sure that it is JUST the caps that would produce this problem. If anyone could provide some insight that would be greatly appreciated. Pic of caps:


A bit hard to see but the two furthest caps are very flat.. and the lower 2 are considerably more round at the top

[tdotaz]

Also, if anyone on here does caps, let me know how much you charge, Cheers

[stipud]

Distortion doesn't really come from caps usually (but fire sure does!)

Usually that is the pots being oxidized. Turn up and down the gains, bass boost, and all other knobs a whole bunch of times, then reset them to their original position.

[tdotaz]

Sorry what are you referring to as "pots" I'm not familiar

[gridracer]

The little yellow thing on your board with the X on it for turning is a pot also the bass gains and amp gain are pots that can produce scratchyness. If you mess with that Yellow one on the board or any others on the board make sure you get them back to the exact right position.

[Eric D]

Better yet, don't mess with the yellow knob pots at all. If you turn them up too far you instantly fry that channel.

[dwnrodeo]

^^Yeah, what Eric said, don't mess with anything internally! By "pots" Stipud was referring to the bass boost, gain, and crossover knobs located on the outside of the amplifier, near the RCA inputs.