Crate Shockwave GT3500H blew

[kallsop]

Turned on the amp last night, a loud hum came out the cabinet speakers for 5 seconds or so, then the fuse blew. Guessing maybe an electrolytic cap in the power supply shorted out? I'll open it up this weekend and take a look. Anyone else had a Shockwave GT3500H just quit?

[kallsop]

Re: Crate Shockwave GT3500H blew

Took off the piece of wood at the back, then removed 4 screws in the base. The chassis is not moving at all, it's held in by additional screws/bolts? Anyone got a service manual for this beast?

[dominus]

Re: Crate Shockwave GT3500H blew

Typically amps are held in by screws on the side and top.

[kallsop]

Re: Crate Shockwave GT3500H blew

Typically amps are held in by screws on the side and top.

Thanks. The amp chassis was sort of stuck to the case, not with glue but probably just age, and a hefty nudge got it out. I was expecting to see *something* charred in there but everything looks great.



Not sure how far I can go without schematics. Obviously there has to be a lot of current going somewhere to blow the fuse. I'll disconnect the amp boards to see if it is the transformer, but it will have to wait until tomorrow as I don't have any spare fuses and I'd rather watch some football today.