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Dc on output gate fets
Dc on output gate fets
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Old 12th January 2020, 09:34 AM   #1
Aqeeb127 is offline Aqeeb127  South Africa
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Default Dc on output gate fets

Hi im getting 10v dc on the output gate fets somebody else worked on the amp before it came to me
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Old 12th January 2020, 09:47 AM   #2
Perry Babin is offline Perry Babin  United States
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Location: Louisiana
Post the DC voltage on all 3 legs of one output from each bank.

If there is DC on the speaker terminals, connect a load to pull it to 0v before measuring the voltage.
Anyone who purchased the repair tutorial, email me (babin_perry@yahoo.com) if you want to download the latest version.
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Old 12th January 2020, 09:56 AM   #3
JonSnell Electronic is offline JonSnell Electronic  United Kingdom
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Location: The Jurassic Coast, England. GB
With zero voltage on the power input and main smoothers discharged, remove the black conductive gunk off the board, it will probably remove your fault.
The black gunk is porous and absorbs moisture!
Very common on many cheaper builds.
Support for Fender, Marshall and all Valve Equipment; Audio Innovations, Audiorama FU29, Quad and Leak. www.jonsnell.co.uk
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