Re: Very old monitor repair

From: James Sweet (jamessweet_at_hotmail.com)
Date: 03/03/05 

Date: Thu, 03 Mar 2005 03:45:29 GMT

"Aidan Grey" <apgrey@nospam.con> wrote in message
news:ncterlplorehfpn.icq9s31.pminews@news.execulink.com...
> On Wed, 02 Mar 2005 14:15:21 +0100, CIP wrote:
>
> >Hi everybody,
> >
> >I got an very old monochrome monitor that is dead.
> >
> >It's an NEC BU-1201M(E)-1 from about 1985
> >
> >It had an burnout fuse on the main board, replaced it but the screen
remains
> >black. Audio works. When I switch it on the first second the end of the
CTR
> >lights up but then it gets very dim or even no light at all. I can hear
the
> >HV make a little hunnimg noise.
> >
> >It's a monitor from a computer that controls a factory. The monitor was
> >turned on in 1985 and never turned off, but when not in use the screen
was
> >cleared. The video input is NTSC
> >
> >Checked the power transistors (h/v) and they are ok. Transformer is ok.
> >
> >Anybody any tips?
>
> NTSC is standard North American TV video. What you have essentially is
a
> monochrome
> TV being used as a monitor.
>
> You should be able to be able to cheaply buy a replacement TV type
monitor.
> One
> place to check is video security monitors. A security camera being
recorded
> on a
> VCR is using an NTSC signal. The video monitor for such a task would
> probably be
> a drop in replacement for your defective monitor.
>
> Note that even if you could repair this monitor, it will not be reliable
at
> its age. A brand
> new monitor will give you the reliability needed for a factory
environment.
>
>
> Aidan Grey
>
>
>

Don't forget that there might be special mounting considerations.

Also I would not nessesarily expect a modern TV to last anywhere near as
long as that monitor did, if the image was still reasonably good I'd repair
it personally.

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