Akai amp trouble

Lloyd1986 · 19th April 2005, 01:38 PM

I have an Akai AM-U22 Integrated amp yes unfortunatly it only works on the left channel, ive tryed everything and inside it looks fine, i even replaced all the fuses thought they seemed fine. No matter what you do you can only get sound out of the left channel and only the left meter on the front of the amp works too. Any help would be much apriciated

anatech · 20th April 2005, 01:08 AM

If I'm not mistaken, that amp used STK chips.

Do you have a 'scope? That way you can chase the signal to see where it goes away. Hopefully not at he chip.

-Chris

Dominique · 20th April 2005, 01:32 AM

Quote:

Originally posted by Lloyd1986
... No matter what you do you can only get sound out of the left channel and only the left meter on the front of the amp works too. Any help would be much apriciated

Well, I'd think that it's got something to do with the right channel then!

Sorry, couldn't help it!
If you don't have a scope, look again, and really close at the parts all over the board. I needed several looks into my amplifier too to find that not only that slightly dirty transistor was probably broken (and it was!), but also an electrolytic cap (not far from that transistor).

A bad electrolytic often has a bump on it's top, or the circuit board around it looks smeary.

Good luck!
Dominique

19th April 2005, 01:38 PM	#1
Lloyd1986 diyAudio Member Join Date: Dec 2004 Location: Geelong	Akai amp trouble I have an Akai AM-U22 Integrated amp yes unfortunatly it only works on the left channel, ive tryed everything and inside it looks fine, i even replaced all the fuses thought they seemed fine. No matter what you do you can only get sound out of the left channel and only the left meter on the front of the amp works too. Any help would be much apriciated __________________ "Those who can, do. Those who can't discuss it on the Internet"

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20th April 2005, 01:08 AM	#2
anatech diyAudio Moderator Join Date: Jun 2004 Location: Georgetown, On	If I'm not mistaken, that amp used STK chips. Do you have a 'scope? That way you can chase the signal to see where it goes away. Hopefully not at he chip. -Chris

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