adcom 555 ll

changsecho · 9th September 2007, 04:15 PM

Hi i would like to know if someone could give me some input on this amp.It keeps blowing the primery fuse.If someone could give me a place to start it sure be a help.So far haven;t found a service manual.I wonder if it;s one of the outputs if so how to test to find the bad one thank you.

Magura · 9th September 2007, 04:45 PM

I got the service manual a while back, simply by asking Adcom for a copy

Magura

jblmar · 10th September 2007, 08:35 PM

Could be the output transistors or power supply. I wouldn't power up the unit until the defect is located.
You'll need to check the output transistors with a DMM for starters.

Ron

9th September 2007, 04:15 PM	#1
changsecho diyAudio Member Join Date: Jul 2007	adcom 555 ll Hi i would like to know if someone could give me some input on this amp.It keeps blowing the primery fuse.If someone could give me a place to start it sure be a help.So far haven;t found a service manual.I wonder if it;s one of the outputs if so how to test to find the bad one thank you.

9th September 2007, 04:45 PM	#2
Magura diyAudio Member Join Date: Oct 2003 Location: Denmark, Viborg	I got the service manual a while back, simply by asking Adcom for a copy Magura __________________ Everything is possible....to do the impossible just takes a little while longer. www.class-a-labs.com

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10th September 2007, 08:35 PM	#3
jblmar diyAudio Member Join Date: Dec 2005 Location: Brooklyn, New York	Could be the output transistors or power supply. I wouldn't power up the unit until the defect is located. You'll need to check the output transistors with a DMM for starters. Ron

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