Help! Amp experts

[bili9bass]

I have a Peavey Max 115 bass amp.Its about 3 years old,I use the send/cd input to play my ipod through the amp as a backing track.The thing is i pluged my ipod in the headphone input instead by mistake and now the amp dosent work.The amp turns on but I get no sound from my bass and there is a loud pop every 2-4 seconds.Is this something that can be repaired or should I just but another amp?  

[J M Fahey]

If anything, that should have killed your IPhone, not your amp.
Can you still hear through headphones?
There is a leaf switch in the headphone jack which cuts the speaker ground, squirt a little WD40 in it and plug in-out repeatedly to loosen it.
*Where* do you hear that loud click, through the loudspeaker, headphones or mechanically, "in the air"?

[bili9bass]

I hear it both with headphones and without the static starts off low then increases then theirs a pop.This cycles continues until i kill the power.