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Trace Elliot GP7SM 300w bass amp problem


martin3030
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Hello wonder if anyone can help.
Have picked up this and there is no output.
Looking inside there is no fuse protection.Assuming it has had an overload what are the first things to be checking ?
I noticed there is a thermal fuse on top of one of the heatsinks.

Thanks

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There's at least one fuse in there - it's listed as a 20mm T5A so I'd track that down first and see if it's blown before digging too deep.

As far as overload protection is concerned, relay RLA1 is designed to fail open - so if it becomes faulty you'll get no output.

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[quote name='martin3030' timestamp='1332003739' post='1582020']
Hello wonder if anyone can help.
Have picked up this and there is no output.
Looking inside there is no fuse protection.Assuming it has had an overload what are the first things to be checking ?
I noticed there is a thermal fuse on top of one of the heatsinks.

Thanks
[/quote]

There's a fuse built into the mains connector for a start. Failing that it could be loads of things... it's pointless guessing. Could be a power supply failure, could be output transistors, could be something else. Unlikely to be a DIY fix.

If you just want rid, I buy stuff like this as long as the price is sensible (please excuse blatant plug) :)

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Ah ok Thanks guys.
Glass fuse in the carrier on the IEC socket had gone,and I replaced it but still no joy.

"If you just want rid, I buy stuff like this as long as the price is sensible (please excuse blatant plug"

Might be a thought but sensible could mean anything !

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