Dead amp

leander · 20th September 2005, 07:08 PM

I think that my amp has been completely destroyed because replaced all transistors excluding the power transistors and amp still not working.

Is there a way to know if power transistors are faulty or not ?

ilimzn · 20th September 2005, 11:37 PM

In at least 9 out of 10 of all 'blown amp' cases it is precisely the output transistors are shot, so that's where you look first. A basic continuity test is usually enough to figure out if they work or not in 99% of all cases.

Leolabs · 21st September 2005, 02:51 AM

And check the supply volatges too

20th September 2005, 07:08 PM	#1
leander diyAudio Member Join Date: Aug 2005	Dead amp I think that my amp has been completely destroyed because replaced all transistors excluding the power transistors and amp still not working. Is there a way to know if power transistors are faulty or not ?

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20th September 2005, 11:37 PM	#2
ilimzn diyAudio Member Join Date: Feb 2005 Location: Zagreb	In at least 9 out of 10 of all 'blown amp' cases it is precisely the output transistors are shot, so that's where you look first. A basic continuity test is usually enough to figure out if they work or not in 99% of all cases.

21st September 2005, 02:51 AM	#3
Leolabs diyAudio Member Join Date: Dec 2004 Location: Bukit Mertajam	And check the supply volatges too

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