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Blue g2/cutoff gain are going up and down by 80 % on 1209/2

 
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lydmann



Joined: 12 Aug 2006
Posts: 56
Location: Norway

Posted: Tue Sep 19, 2017 7:48 pm    Post subject: Blue g2/cutoff gain are going up and down by 80 % on 1209/2
And when I use left side blankng, the blue cutoff gain or brigthness increase. More blanking, more blue brigthness. And its flickering too. Sometimes iit is stable. The blanking is off, but still increase an decrease randomily. I tried different g2 setting, but still unstable, what can it be?
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lydmann



Joined: 12 Aug 2006
Posts: 56
Location: Norway

Posted: Wed Sep 20, 2017 11:03 am    Post subject:
Anyone? ?
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Curt Palme
CRT Tech


Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC

TV/Projector: All of them!
Posted: Wed Sep 20, 2017 2:04 pm    Post subject:
I have not seen this before, sorry! I'd try changing the CRT sockets/video amps and/or the vertical board, or the G2 board.
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