SP2500s blown. Anything in These Pics Look Wrong?

WuMyster

WuMyster

WuMyster

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Last month I powered on my speakers from the plug and hear a pop which led me to believe something had gone internally and not from the fuse.

I opened it up today and see a blown fuse but I can't see anything else that looks wrong but don't have any experience in any of this. Wondering if you guys can see anything wrong other than the fuse?

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Top image - there's a rather large scorch mark over by the heatsink on the right, looks like one of the resistors (which is probably being used as a fuse) has blown.

Replace it and it'll probably fail again...
 
This is why I cannot recommend these speakers, so many reports of them blowing albeit after a few years but still not good!
 
Looks like the chip (regulator?) towards the middle of the back of the board has well and truly blown too, there's a big chunk missing?
 
I'm all for home repair but this is highly not recommended home servicing territory. You are playing with an amp/powersupply there and some of those components retain a charge even when unplugged. You could take a painful (possibly fatal) shock if you im-properly handle that stuff.

It's not worth trying to service things like CRT displays, powersupplies, amplifiers, or anything that stores massive capacitance generally speaking, unless you are a qualified technician.
 
mistersprinkles said:
I'm all for home repair but this is highly not recommended home servicing territory. You are playing with an amp/powersupply there and some of those components retain a charge even when unplugged. You could take a painful (possibly fatal) shock if you im-properly handle that stuff.

It's not worth trying to service things like CRT displays, powersupplies, amplifiers, or anything that stores massive capacitance generally speaking, unless you are a qualified technician.
Click to expand...

It's fine as long as you take your time and read about what you want to do several times first.

Only way to get my monitors serviced it to do it myself. Rebuilt half a dozen monitors and capped a few more and no shocks yet. Had several while working on the wiring in the house. Weirdly, while the main trip was turned off... :eek:

Still got a couple of arcade screens to rebuild. There's going to be big jobs. Just the main frame and tube will be left original afterwards I suspect.
 
mistersprinkles said:
I'm all for home repair but this is highly not recommended home servicing territory. You are playing with an amp/powersupply there and some of those components retain a charge even when unplugged. You could take a painful (possibly fatal) shock if you im-properly handle that stuff.

It's not worth trying to service things like CRT displays, powersupplies, amplifiers, or anything that stores massive capacitance generally speaking, unless you are a qualified technician.
Click to expand...

Thanks for the advice. I've since thrown the sub away anyway. Sourcing the PSU for it is impossible and well I really can't be asked to find someone to service/fix it.

Will look into either getting a used set or overhaul my setup.
 
The blown pwm chip is UC3843, the mosfet is SMK1060F.
Parts can be had for less than a tenner, you just need to find a local repair shop willing to repair the board or learn to solder and replace it yourself.
Only problem is if the psu also damage the main amp when it went kaput.
 
Please search my post history. I went through the exact thing. Had my speakers refunded by the retailer 3 yrs after purchase. Also had them repaired for very little.

Good speakers, questionable quality.
 
I paid £170 for a set of these speakers from OcUK ( not using them at the moment though ) but good to know they are likely to fail on me...another quality product from Corsair lol .
 
Last edited:
:p

Good product ruined by cost cutting.

Three people have given advice on getting this repaired, after the OP posted he has chucked the subwoofer away....
 
Marsman said:
:p

Good product ruined by cost cutting.

Three people have given advice on getting this repaired, after the OP posted he has chucked the subwoofer away....
Click to expand...

Incase others stumble over this thread. They can be repaired. And in my experience retailers will provide refund beyond warranty period.
 
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