Help with a Monitor.
El-CID
DULL? the colors and everything else works, but the brightness went TOTALLY
down south? Could it be the power supply? Could a newbie armed with the
thirst for knowledge ( and a flat broke wallet ) have a chance in repairing
this unit? please any help will be greatly appreciated. I also have this
other monitor given to me, but the colors are PINK. theres no other color!
both are SVGA monitors.
Rudolf Ladyzhenskii
It might be possible to bring the brightness up on the flyback.
NEC are not generally known for having bad tubes, but it does not mean that
your CRT is OK.
I had to replace LM1203N driver IC in few NEC monitors. This could be your
problem too.
If you do not know what you are doing -- give it to a technician.
Rudolf
El-CID wrote in message <3732...@news.vphos.net>...
Tom MacIntyre
>Hi guys. Anybody here knows what could be causing a NEC monitor to appear
>DULL? the colors and everything else works, but the brightness went TOTALLY
>down south? Could it be the power supply? Could a newbie armed with the
>thirst for knowledge ( and a flat broke wallet ) have a chance in repairing
>this unit? please any help will be greatly appreciated. I also have this
>other monitor given to me, but the colors are PINK. theres no other color!
>both are SVGA monitors.
>
>
Bad CRT, or setup...what brand is the CRT (NEC)? The other one sounds
like it lacks green...again could be CRT, but could be chroma
processor or surrounding circuitry. You may need to restore the CRT in
one or both cases, requiring special equipment. Maybe you can get one
monitor repaired while offering the other to the repair shop as
payment.
Tom
Jerry G.
varified. You need the service manual, a good DVM and High Voltage
probe to varify this. You will also need the proper training
including the proper safety training so that you don't get seriously
hurt!
A TV monitor is the worse thing to get into for learning electronics.
It is too complex and dangerous. Give it to the proper trained
experts. They will tell you what they did to correct it.
However, it does sound like the CRT may be weak... This must be
varified before making assumptions.
--
Jerry Greenberg
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El-CID <cid...@hotmail.com> wrote in message
news:3732...@news.vphos.net...
John Robertson
Voltage area, typically 10/250 cap. An ESR meter kit might help
here,(opps, we sell those...) or just replace all the caps. Look for
caps that have a slight bulge on the top, these MUST be replaced!
John :-#)#
On Thu, 6 May 1999 21:02:42 -0700, "El-CID" <cid...@hotmail.com>
wrote:
>Hi guys. Anybody here knows what could be causing a NEC monitor to appear
>DULL? the colors and everything else works, but the brightness went TOTALLY
>down south? Could it be the power supply? Could a newbie armed with the
>thirst for knowledge ( and a flat broke wallet ) have a chance in repairing
>this unit? please any help will be greatly appreciated. I also have this
>other monitor given to me, but the colors are PINK. theres no other color!
>both are SVGA monitors.
>
(Please post followups or tech enquires to the newsgroup)
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