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Author Topic: qsc 1400 stereo amp blowing fuse
Jermery Adkisson
Film Handler

Posts: 5
From: batesville, AR, united states
Registered: Jul 2009


 - posted 05-04-2010 09:24 PM      Profile for Jermery Adkisson   Email Jermery Adkisson   Send New Private Message       Edit/Delete Post 
I have a qsc 1400 stereo amp that is blowing the fuse for channel two immediately when powering on, I am not an electrician however I can solder well and if it is something as simple as a cold solder joint I can easily fix it myself. But before I take the amp out of the chassis I thought I would see if anyone has encountered this problem before and point me in the general direction of the problem area.
thanks
jermery

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Mark Gulbrandsen
Resident Trollmaster

Posts: 16657
From: Music City
Registered: Jun 99


 - posted 05-04-2010 09:47 PM      Profile for Mark Gulbrandsen   Email Mark Gulbrandsen   Send New Private Message       Edit/Delete Post 
It's probably a shorted out put transistor. These amps are getting old now... Rebuild kits are still available from QSC to do an entire overhaul of the amps and they are inexpensive. The amp would then last another two or three decades! The fans are no longer available...

Mark

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Gordon McLeod
Film God

Posts: 9532
From: Toronto Ontario Canada
Registered: Jun 99


 - posted 05-05-2010 08:06 AM      Profile for Gordon McLeod   Email Gordon McLeod   Send New Private Message       Edit/Delete Post 
probably the bridge rectifier

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Mark Gulbrandsen
Resident Trollmaster

Posts: 16657
From: Music City
Registered: Jun 99


 - posted 05-05-2010 08:47 AM      Profile for Mark Gulbrandsen   Email Mark Gulbrandsen   Send New Private Message       Edit/Delete Post 
Haven't seen a QSC with a blown bridge rectifier in over 15 years... At any rate I reccomend the overhaul kit. Inexpensive and you'r amp will be ready for the Smithsonian by the time it has expired again.

Mark

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