Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems.

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Default CRT monitor: flashes on screen and burnt smell

Recently, my Hyundai ImageQuest Q910 19" monitor has been acting
up. Occasionally, there would be flashes across the screen,
similar to what you get when a fridge shuts off nearby.

Over a week or two, the flashes become more frequent. One day,
there was a big one, spanning maybe 10% of the frame. Later that
day, I smelled something burning in the monitor and turned it
off in a hurry.

There is no obvious damage inside. Where would you look first ?

--
André Majorel URL:http://www.teaser.fr/~amajorel/
"No meetings were held, nor secret handshakes created, to allow a Seria-
list Elite to disenfranchise the (tonal) non conformist. None had to be."
-- Wendy Carlos
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Default CRT monitor: flashes on screen and burnt smell


"Andre Majorel" wrote in message
...
Recently, my Hyundai ImageQuest Q910 19" monitor has been acting
up. Occasionally, there would be flashes across the screen,
similar to what you get when a fridge shuts off nearby.

Over a week or two, the flashes become more frequent. One day,
there was a big one, spanning maybe 10% of the frame. Later that
day, I smelled something burning in the monitor and turned it
off in a hurry.

There is no obvious damage inside. Where would you look first ?

--
André Majorel URL:http://www.teaser.fr/~amajorel/
"No meetings were held, nor secret handshakes created, to allow a Seria-
list Elite to disenfranchise the (tonal) non conformist. None had to be."
-- Wendy Carlos


Does it actually still work ? First suspicion would have to be bad joints.
Could be almost anywhere such as PSU, HOP stage or CRT base. Have a tap
around with a long insulated stick such as a piece of wood dowel. If you do
it in subdued lighting, you might even be able to see the arcing from a bad
joint.

Arfa


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Default CRT monitor: flashes on screen and burnt smell

Andre Majorel wrote:

Recently, my Hyundai ImageQuest Q910 19" monitor has been acting
up. Occasionally, there would be flashes across the screen,
similar to what you get when a fridge shuts off nearby.

Over a week or two, the flashes become more frequent. One day,
there was a big one, spanning maybe 10% of the frame. Later that
day, I smelled something burning in the monitor and turned it
off in a hurry.

There is no obvious damage inside. Where would you look first ?

If that is a CRT monitor, the Fly back is suspect!.


http://webpages.charter.net/jamie_5"

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Default CRT monitor: flashes on screen and burnt smell

I have had this on some models of monitors. Most of the time it was
the flyback transformer and HV multiplier assembly. Sometimes the CRT
was arcing internally.

I don't want to dissapoint you, but you should be seriously shopping
for a new monitor.


Jerry G.

__


On Jan 10, 9:04*am, Andre Majorel wrote:
Recently, my Hyundai ImageQuest Q910 19" monitor has been acting
up. Occasionally, there would be flashes across the screen,
similar to what you get when a fridge shuts off nearby.

Over a week or two, the flashes become more frequent. One day,
there was a big one, spanning maybe 10% of the frame. Later that
day, I smelled something burning in the monitor and turned it
off in a hurry.

There is no obvious damage inside. Where would you look first ?

--
André Majorel URL:http://www.teaser.fr/~amajorel/
"No meetings were held, nor secret handshakes created, to allow a Seria-
list Elite to disenfranchise the (tonal) non conformist. None had to be."
* -- Wendy Carlos


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Default CRT monitor: flashes on screen and burnt smell

On Jan 11, 6:30*pm, "Jerry G." wrote:
I have had this on some models of monitors. Most of the time it was
the flyback transformer and HV multiplier assembly. Sometimes the CRT
was arcing internally.

I don't want to dissapoint you, but you should be seriously shopping
for a new monitor.

Jerry G.

__

On Jan 10, 9:04*am, Andre Majorel wrote:



Recently, my Hyundai ImageQuest Q910 19" monitor has been acting
up. Occasionally, there would be flashes across the screen,
similar to what you get when a fridge shuts off nearby.


Over a week or two, the flashes become more frequent. One day,
there was a big one, spanning maybe 10% of the frame. Later that
day, I smelled something burning in the monitor and turned it
off in a hurry.


There is no obvious damage inside. Where would you look first ?


--
André Majorel URL:http://www.teaser.fr/~amajorel/
"No meetings were held, nor secret handshakes created, to allow a Seria-
list Elite to disenfranchise the (tonal) non conformist. None had to be.."
* -- Wendy Carlos- Hide quoted text -


- Show quoted text -


Methinks he wanted to fix the son of a bitch he has now, not replace a
nice CRT with a crappy LCD.


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