[SunRescue] Sun monitor GDM-1662. Which is it?

[Gregory Leblanc]

> -----Original Message-----
> From: Maarten Deen [mailto:mdeen at xs4all.nl]
> Sent: Saturday, April 15, 2000 5:31 AM
> To: rescue at sunhelp.org
> Subject: Re: [SunRescue] Sun monitor GDM-1662. Which is it?
> 
> Bill Bradford:
> 
> > No LEDs or buttons for adjustments; this is an 
> analog-controls monitor.  Same
> > as a GDM1962B or a HP2094, etc, its got (if I remember correctly) 3 
> > roller "knobs" for picture adjustments, then 2 for 
> brightness/contrast, with
> > a "rocker/toggle" switch for power on the far right.
> 
> That's the one. He actually had two of them (I picked them up for a 
> total of  ~USD40), and one alledegedly has a problem: when it gets 
> warm (15 minutes the guy said), it gives a bang like a high voltage 
> arc, then the display goes black briefly and comes up again. Any 
> idea which part is failing here and can I fix it myself (with only 
> moderate soldering and electronics skills)?

Pull the plastic cage off of the back, and get out a blow dryer set on high
heat and see if you can reproduce the problem.  Most of the "bangs" from
monitors that I've heard are from bad or failing caps, so you might test
some of them to see if you can find any that are bad or suspect, and replace
them.  <disclaimer>If you fry yourself, it's not my fault!  Monitors are
REALLY REALLY dangerours, even when they've been unplugged for
hours.</discaimer>
	Greg