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Old 02-27-2020, 11:31 AM   #4
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Join Date: Feb 2020
City & State: Savoie
My Country: France
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Posts: 10
Default Re: Harman Kardon PM655 - strange values of voltage

I checked i have 237/238vac .

I have 44.4v for c6 and c8 and -44.4v for c7 and c9...

I checked and adjusted the dc balance and idling current's ok for both channel.

...the heatsink of q5 and q6 are very hot for info , hot like this just while the amp was "on" during 15/30 mins for the dc balance and idling adjustment ; because i checked 1 time, i adjusted and leave 15mins again to recheck
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