Markbass Combo Problem, Fuse's Blow

stratocaticus · #1 01-25-2011, 11:41 PM

My markbass CMD 102P combo broke. I've had it for about 2 or 3 years now, and it hasn't messed up at all until now. It might of been some kind of power surge, I was playing and the lights in the room flickered for a sec, and then it wouldn't come back on. I took the fuse out and it was blown, then I put the replacement in, and it blew immediately. I tried another fuse, with a surge protector too, and it blew as well. and the amp would not turn on even for a second either time. One thing I noticed is that the fuse said 125v and on the amp it says use 250v fuse only, but the one that came with the amp said 125v as well, and so did the replacement, and the other one i tried. I haven't tried a 250v one yet, because i don't know if it will actually fit.

JimmyM · #2 01-25-2011, 11:50 PM

i think the 250v fuse is for 240v operation only. no idea what's wrong, but there's something wrong for sure. hopefully it's simple, but you won't know till you get it looked at.

GrowlerBox · #3 01-25-2011, 11:54 PM

Quote:

Originally Posted by JimmyM

i think the 250v fuse is for 240v operation only. no idea what's wrong, but there's something wrong for sure. hopefully it's simple, but you won't know till you get it looked at.

Sounds like the fuse has done what fuses are supposed to do. Unfortunately, I'm not sure you did what you're supposed to do, which was to check out what was happening at the supply end before you plugged back in, what, 3 times??!!

Might have to put this one down to "user error".

stratocaticus · #4 01-26-2011, 01:42 AM

So do you have any suggestions on what I'm suppose to check at the supply end?

GrowlerBox · #5 01-26-2011, 02:21 AM

A couple of things come to mind -- it may be that the surge guard needed to be reset after taking an initial spike (or it may simply be malfunctioning). Sometimes people put incorrect gauge fuse wire or circuit breakers in mains boxes so they can overload points and risk fires, that kind of thing. Bit of a problem in rental places, for example. I don't know whether anything else was plugged in at the same time, possibly contributing to the fault.

Hard to be more precise from this distance, but it does seem odd that a previously faultless amp blew 3 fuses in a row -- my initial reaction is just that the problem may well lie somewhere else.