Are you speaking of the Focus control that is mounted on the HV chassis? So
you are not getting any HV (something like 8KV I think-files at shop) going
into it, and I assume you are using an HV probe to monitor that. Are you
getting the 20KV on the HT lead? Are you getting screen voltage?
John :-#)#
At 02:14 PM 3/16/2000 -0800, Matt Rossiter wrote:
>I'm working on a tempest monitor and almost have this thing working. In
>fact, at one point I got the picture to come up. Here's the problem....
>
>The deflection board is working. The Tempest motherboard is working
>100%. The spot killer light on the monitor stays off and I can hear the
>deflection working happily away. The CRT is glowing like it should.
>There is nothing wrong with the High voltage unit itself. I'm getting
>proper voltages going it. The only problem I see is - I am getting zero
>voltage going into the Focus assembley. For a while it was working but
>then it shut itself off. I'm trying to figure out what is causing the
>voltage go out. Could it be something on the neckboard that is causing
>this?
>
>I'm not yet familiar enough with this monitor to know why the spot
>killer would stay off and yet the focus assembly would get no voltage.
>
>Any ideas as to what to check?
>
>thanks....
>
>
>Matt
>
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Received on Sat Mar 18 01:37:41 2000
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