audiolab 8000 s integrated amp

sq225917 · 21st July 2004, 11:35 AM

guys, i've just picked up an audiolab 8000s integrated amp for buttons, it all sounds fine, but when i opened her up i found that 6 of the resistors inside her seem to be burnt or part burnt out, they have shed their outer coloured bandings and there was visible signs of burning on the top of the inside of the case.

as far as i can tell she sounds fine, all channels and all features work, looks like she might have been repaired as one or two parts inside look to have been redone.

does anyone know of a source for the circuit diagram for this item, audiolab were owned by tag mclaren but have since been bought by IAG in the UK and currently they have no service offering on the website and are not conatctable directly.

any suggestions greatfully received.

michelf · 27th July 2004, 04:47 AM

I got the same problems with mine.
6 resistors mostly burn.
But last week I burn a fuse and now I got a nasty buzz after the amp heat up.
Its sounds as a defective transistor.
After verification even my RCA plus dry-up and broke.

The canadian distributor http://www.artech-electronics.com/us...lab/8000s.html
may still have the service manual.

Lyricman · 24th February 2007, 03:51 AM

I have an original Audiolab 8000s Amplifier that is quite a few years old now but in perfect working order. I have been reading this forum for a while now and am now aware that component values change over time and therefore go out of spec. I have read about having the bias set on the amps periodically. Is this something I could check with a multimeter on the main board and adjust them.

1LUXMAN · 24th November 2011, 10:11 PM

Look here : New Audiolab Service Manuals

21st July 2004, 11:35 AM	#1
sq225917 diyAudio Member Join Date: Jun 2004 Location: sheffield	audiolab 8000 s integrated amp guys, i've just picked up an audiolab 8000s integrated amp for buttons, it all sounds fine, but when i opened her up i found that 6 of the resistors inside her seem to be burnt or part burnt out, they have shed their outer coloured bandings and there was visible signs of burning on the top of the inside of the case. as far as i can tell she sounds fine, all channels and all features work, looks like she might have been repaired as one or two parts inside look to have been redone. does anyone know of a source for the circuit diagram for this item, audiolab were owned by tag mclaren but have since been bought by IAG in the UK and currently they have no service offering on the website and are not conatctable directly. any suggestions greatfully received. __________________ hoping to pick up some things.

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27th July 2004, 04:47 AM	#2
michelf diyAudio Member Join Date: Nov 2003 Location: Montreal	I got the same problems with mine. 6 resistors mostly burn. But last week I burn a fuse and now I got a nasty buzz after the amp heat up. Its sounds as a defective transistor. After verification even my RCA plus dry-up and broke. The canadian distributor http://www.artech-electronics.com/us...lab/8000s.html may still have the service manual.

24th February 2007, 03:51 AM	#3
Lyricman diyAudio Member Join Date: Feb 2007 Location: Yorkshire	I have an original Audiolab 8000s Amplifier that is quite a few years old now but in perfect working order. I have been reading this forum for a while now and am now aware that component values change over time and therefore go out of spec. I have read about having the bias set on the amps periodically. Is this something I could check with a multimeter on the main board and adjust them.

24th November 2011, 10:11 PM	#4
1LUXMAN diyAudio Member Join Date: Jul 2007	Look here : New Audiolab Service Manuals