[TechAssist] Re: Sony 20" monitor Intermittent poor Focus
- From: Mykeelike@xxxxxxx
- To: techassist@xxxxxxxxxxxxx
- Date: Wed, 11 Dec 2002 19:33:35 EST
In a message dated 12/11/02 5:23:27 AM Pacific Standard Time,
peggs@xxxxxxxxxxxxxx writes:
>
>
> The 2 leads going to the CRT Socket are H and V Focus,I
> ass-ume.I think this is called Dual Focus,but I could be wrong.
> Anyway,does your monitor look fine when you turn it off
> and right back on(after the poor focus has appeared of course) ???
>
> Peggs
>
sometimes it does and sometimes it doesn't. i know that i can always refocus
it using the two controls on the focus block. there seems to be two discrete
focus states for my monitor.for instance I'll turn on the monitor and if it
comes on out of focus i will measure the focus voltages, the v will be 5.3kv
the h will be 4.8kv.then i will adj. both controls to acheive good focus and,
when i measure the voltages again the v is 4.1kv and the v will be 3.6 kV pix
looks good. 15 min later I'll look around and the pix will be out of focus
again. measure voltage to find v still 4.1 kV h still 3.6kv. refocus it for
good pix measure voltage v 5.3kv h4.8kv.the monitor i have doesn't seem to
care if its cold or warm it randomly toggles between two focus states.
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