Re: Very old monitor repair

From: Aidan Grey (apgrey_at_nospam.con)
Date: 03/02/05 

Date: Wed, 02 Mar 2005 09:04:51 -0500 (EST)

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

Relevant Pages

  • Re: Help with G5 iMac - dead display
    ... By hooking it up to an external monitor you can continue to enjoy the ... Fortunately, as I screwed up on the Applecare, Apple gave it ... The logic board was replaced once, ... screen's replacement, another option is to just buy a very inexpensive ...
    (comp.sys.mac.system)
  • Re: IIgs Monitor Repair
    ... I left the monitor running for quite a while and it ... IIgs before testing. ... have avoided inhaling all of the solder fumes (yes I am aware they are ... monitor (I have a replacement monitor in my sights courtesy of eBay). ...
    (comp.sys.apple2)
  • Re: Kaypro 2X defect?
    ... It worked fine at first using one drive and the monitor, but when I tried to format some disks for backups, the load of two drives running at once was too much for the old power supply. ... You may be able to breathe life into it by replacing the dried out electrolytics if you cannot find a replacement supply. ...
    (comp.os.cpm)
  • Re: Replacement monitor
    ... in turn sent it to the manufacturer for repair. ... sending out a new monitor as a replacement for me. ...
    (uk.legal)
  • Re: faulty goods
    ... that you could have rejected the monitor for a refund). ... with trying to get a replacement or alternative out of the manufacturer. ... You will have to read the terms of their warranty to see what conditions ...
    (uk.legal)