Hifonic Hercules 4k

megael9

Member
Paid Member
2009-10-13 9:36 pm
This amps have one shoulder that's getting hot, and the output have a high friquiency noise( no audio), I check most of the components of the driver board
And they looks ok, all audio MOSFETs are measuring ok. U2, u3 have no part number and I can not check them. can some one tell me where the audio MOSFETs gate reference ground is? And by the way when this amp came to me Q220 and Q213 were shortened.
Additional help will be appreciated
Thank you
 

megael9

Member
Paid Member
2009-10-13 9:36 pm
Here are the pictures
 

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