Denon PMA-260 quiescent current

Hello, a friend brought me his amp because of a problem he couldn't solve.
It was only a broken RCA pin stucked in an input socket.
As the amp was on my desk, I would have liked to adjust the quiescent current, but I can't find the service manual. Based on the PMA-280 manual, there are two posts to make the measurement, TP1 and TP2.
I measured 5mV on both channels. Is it acceptable?
Thanks