Hi there I have a Marantz 4400 that I am trying to revive the scope on. I was doing this a year ago but had to put it on hold due to life issues. My Marantz works flawlessly besides the scope. I did some testing on the scope board and found that there is not enough voltage going to (j911) (g1). I am getting -367 vdc with brightness maxed, which I understand should have around -575 vdc if brightness is maxed. How do I go about testing this further?
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