Re: Question about cinematronics monitor - neon bulbs

From: Mark Jenison <jenison_at_enteract.com>
Date: Fri Apr 12 2002 - 17:52:37 EDT

On Fri, 12 Apr 2002, Matt Rossiter wrote:

> I recently repaired another cinematronics monitor and it has been
> working fine for a while. Well, as usual, a friend of mine picked it up
> and installed it in a Star Castle. For awhile it looked good, but then
> he said the picture started going dim after a while. When he turned up
> the brightness, the neon bulbs started to light up. Of course, I told
> him to shut off the monitor, check for anything unusual like metal
> touching in the wrong place or something. He said that the anode clip
> was kinda loose but that was about it.
>
> I know they are used for bleeding off excess current in the event of
> voltage spikes, but I'm not exactly sure what to tell him to check. Can
> someone help me understand this problem a little better?

I always thought this was a sign that the tube was beginning to fail/spark
internally (which kind of goes with the picture dimming symptom).

-- 
Mark Jenison
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Received on Fri Apr 12 14:59:24 2002

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