Audiolab 8000T no sound

highviewvideo · 30th August 2007, 02:54 PM

This superb tuner has been 'got at' by yet another unqualified 'engineer'.
There is no sound at all (plus the backlights have failed)
As we all know there is no suport for Audiolab products so does anyone have a schematic for this magnificent machine?
Any help greatfully recveived

erin · 19th October 2008, 05:32 AM

The power supply caps suffer from high ESR - being an old unit now. Try changing all the small caps in the power supply. The large capacitors should be OK. Use 105 degree capacitors, and the same value in uF of course. I have found on the one that I repaired that the 10uF cap was measuring a whopping 10 Ohms - far too high. Interestingly the caps showed no sign of bulging or leaking which makes it difficult to find the fault unless you have an ESR meter.
Best of luck with it

highviewvideo · 19th October 2008, 05:56 PM

Too late . The unit has been returned to the customer unrepaired. I do, incidentally ,have an esr meter and had already checked the power supply caps and LT rails for correct operation. I think the previous 'engineer' put some faults in to the equipment!!! Thanks anyway

30th August 2007, 02:54 PM	#1
highviewvideo diyAudio Member Join Date: Dec 2006	Audiolab 8000T no sound This superb tuner has been 'got at' by yet another unqualified 'engineer'. There is no sound at all (plus the backlights have failed) As we all know there is no suport for Audiolab products so does anyone have a schematic for this magnificent machine? Any help greatfully recveived

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Audiolab Monoblock	jakobgp	Solid State	0	3rd June 2006 07:20 PM
Audiolab	diy guy	Solid State	0	29th April 2005 09:39 AM
Backlights on Audiolab 8000T tuner	Baard	Everything Else	0	26th May 2002 11:23 PM
can audiolab 8000s be 'tweaked' into more emotional sound??	Hans	Solid State	11	25th February 2002 01:01 AM
PC Audiolab	AuroraB	Everything Else	0	25th August 2001 07:53 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

19th October 2008, 05:32 AM	#2
erin diyAudio Member Join Date: Nov 2006	The power supply caps suffer from high ESR - being an old unit now. Try changing all the small caps in the power supply. The large capacitors should be OK. Use 105 degree capacitors, and the same value in uF of course. I have found on the one that I repaired that the 10uF cap was measuring a whopping 10 Ohms - far too high. Interestingly the caps showed no sign of bulging or leaking which makes it difficult to find the fault unless you have an ESR meter. Best of luck with it

19th October 2008, 05:56 PM	#3
highviewvideo diyAudio Member Join Date: Dec 2006	Too late . The unit has been returned to the customer unrepaired. I do, incidentally ,have an esr meter and had already checked the power supply caps and LT rails for correct operation. I think the previous 'engineer' put some faults in to the equipment!!! Thanks anyway

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)