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RJK
 
Posts: n/a
Default NEC FE750 17" PC occasional field collapse

....I whipped off the back and removed the tin shield, blew it out with my
old faithfull electrolux "cylinder" vacuum cleaner - (where you can connect
the hose on a hole at the top to blow - bought it at a boot sale for £5
several years ago....stripped cleaned it and put a tiny drop of oil on each
motor bearing....marvellous for blowing out PC cases . / PSU's etc.)....the
pallaver to get the board out of the thing is a major time consuming joke,
so I reassembled it, I'm going to throw it away if it plays up and get a LCD
monitor from my favourite vendor http://www.aria.co.uk

BTW ...since blowing it out, I haven't had a single field collapse !!
....tracking or arcing via dust ??

regards, Richard


"RJK" wrote in message
...
Thanx James,
Perhaps tommorrow I'll whip off the cover and take a look around it with a
bright light and a magnifying glass, if I can't spot anything with the
naked eye.
Tiz all so time consuming ...so many other things to do !

regards, Richard


"James Sweet" wrote in message
news:cExyf.6848$6L1.4703@trnddc02...
RJK wrote:
Hello all,

Can anyone help me as to how or where to locate a fault in my NEC FE750
monitor (.25mm dot pitch / flat aperture grille tube). Every few hours,
(it's done it about 5 times now over the past few days), I get loud
"Clunk" sound as if it's just been switched on or off - picture field
collapses to a bright horizontal white/magenta line, (pretty sure it's
not white), field collapse lasts for just a second then "clunk" again,
and Windows desktop appears in the middle of a degauss cycle then it's
fine again for hours.

This NEC monitor was in storage from new along with several others for
years, I've had this one for about a year, tube is like new. Shame to
have chuck it for the sake of a disc capacitor ...if that's all that's
wrong !!

...any pointers, or referral to a good monitor repair technician
appreciated.

regards, Richard



You've probably got a cracked solder joint in there somewhere, perhaps in
the vertical or power supply area. Don't keep using like that or you'll
likely cause further damage.