15" Hyundai monitor had no problem for 3 years. Suddenly yesterday
I heard some flicking inside of monitor then the right side of monitor
is way off. The color is changed. The green background windows 98 color
is not all green any more. The right side is changed fromg green to
pink and left side is littled changed to green. I did some research
on internet. The research suggested the one of color gun has died.
I guess it's time to get rid of the monitor. I was thinking about TV repairman
or is there something I can do with my little electornic knowledge.

If you want a technician to look at the monitor, find a place that is
specialized in computer monitor servicing. The TV tech may have a
difficult time for parts and service information. The dealer who sold
you your monitor should know of a good place.

By the sound of things, the mask inside of the tube must have became
displaced for some reason. There are retaing wires that hold it in to
position. These wires are under very high tension, and can sometimes
break with age. Going by your description and my experience, this is
what I am strongly thinking. I have seen this type of fault once in a
while.

If a gun in the tube went dead, you would be minus the colour of the
particular gun. Since the colour is not uniform across the screen, this
has to be a case in dealing with the mask.

If there was a purity problem, you would have a different sort of error.
Purity problems usually result in blobs or areas of offset colours. If a
purity problem occurs, there are no associated noises at the time of
occurrence.

Personally, I would be looking for a new monitor rather than investing
in even an estimate for this case. If you want something very nice,
consider an LCD screen. You will find it very easy to work with,
especialy for text and basic graphics work. LCD screens have much less
eyestrain, and are less tiresome to work on for many hours at a time.

--

Jerry G.
======

"Red Cloud" wrote in message
om...
15" Hyundai monitor had no problem for 3 years. Suddenly yesterday
I heard some flicking inside of monitor then the right side of monitor
is way off. The color is changed. The green background windows 98 color
is not all green any more. The right side is changed fromg green to
pink and left side is littled changed to green. I did some research
on internet. The research suggested the one of color gun has died.
I guess it's time to get rid of the monitor. I was thinking about TV
repairman
or is there something I can do with my little electornic knowledge.

Red Cloud wrote:
15" Hyundai monitor had no problem for 3 years. Suddenly yesterday
I heard some flicking inside of monitor then the right side of monitor
is way off. The color is changed. The green background windows 98 color
is not all green any more. The right side is changed fromg green to
pink and left side is littled changed to green. I did some research
on internet. The research suggested the one of color gun has died.
I guess it's time to get rid of the monitor. I was thinking about TV repairman
or is there something I can do with my little electornic knowledge.


You also need to check the thermistor in the deguassing circuit. If it
is bad, the tube will do what you have described above.

kc0oeb