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Old 15th December 2006, 06:02 PM   #1
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Default Mark Levinson 23

This oldie had all low value electrolytics faulty. One channel has very low distorted output. +12v missing. Anyone with circuit diagram?
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Old 15th December 2006, 06:03 PM   #2
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Stephane's homepage: www.marklev.com
Or do a search on the forum, the schematics have been posted here.
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Old 18th December 2006, 09:01 AM   #3
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Thanks but can only find operation users manual and ML2 circuit.
Where is ML23 circuit?
It looks as if I am in for a long desoldering job to get to reverse side of pcb!
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Old 18th December 2006, 05:22 PM   #4
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Mmm,
if you're any good, you'll know the difference between a 23 and a 23.5

Here's what i get if i type in ML23 and Peter Daniel after i hit the search button.
Want it gift wrapped : ask Santa.
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Old 18th December 2006, 07:33 PM   #5
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http://www.diyaudio.com/forums/showt...3308#post53308

http://www.diyaudio.com/forums/showt...542#post212542
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Old 20th December 2006, 01:28 PM   #6
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GUess I should be able to solve it now!
Wonder why my search didn't reveal this thread.
Anyway many thanks and back to the soldering iron
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Old 21st December 2006, 06:52 PM   #7
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Don't electrolytics when old and leaking their fluids make a mess!
Print on reverse of pcb open circuit due to the corrosive effect of the electrolyte after all this time.
Anyway ( thanks to your help and the circuit diagram) the amp is now in perfect health.
Merry Christmas
Stephen
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