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NEC 1810X LCD Repair Question

S

Scott Carlson

Jan 1, 1970
0
I apologize if this comes through Twice.

I've got 4 bad NEC 1810X LCD Monitors. I've searched all over the web for
some schematics/etc and wasn't able to obtain any, anywhere due to the fact
that I'm not an authorized repair person. I was able to find a thread on
google news from May on this very monitor from this newsgroup, so I was
hoping to get some help from those of you who have more experience then me
on repairing these monitors.

Basically, the monitor powers up just fine and I can see the "glow" coming
through the case and the screen seems to be 'lit' a bit. The DVI has no
signal when I plug the monitors into my laptop, thus I figured that it must
be the inverter board, per the articles from May. When I switch to external
monitor, the light goes green to indicate that it "sees" the signal. When I
unplug the DVI cable, it goes orange.

I've attached this description and pictures here:

http://www.scottc.org/nec1810fix.html

So, assuming that one of these is bad, how in the world do I go about
replacing a fuse this tiny. I haven't ever worked with anything this small
and would rather not break a few inverter boards (I have 4 monitors
currently all doing the same thing) learning how to replace a fuse.

I'm really out of practice with my meter too, but should be able to easily
isolate the problem, assuming that one of these fuses is bad, as JW, Dave
Walker, and Richard Anderson pointed out back in May. (Here)

Can someone please give me some pointers as what the best way to go about
removing these fuses and replacing them is. Is it as simple as pulling out
my soldering iron and pulling them out/replacing with a 1.5A or 1.25A from
Fry's Electronics?

Also, if I'm barking up the wrong tree here, got any other suggestions and
some sources of replacement parts if I need them? Thanks in advance to any
replies.

Scott Carlson

{news} {at} {scottc} {dot} {org}
 
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Mike Kennedy

Jan 1, 1970
0
Eh? You say that you see a glow? From what the lcd? Orange lights on what??
Is this lcd on your laptop or is it a standalone monitor? If it lights up
the inverter is working. The inverter is what powers the CFL tubes (little
flourscent lights inside the lcd). Sounds like you might have a lcd
controlere card problem, but who knows. When you say DVI has no signal what
do you mean, you get no picture?

Your problem could be the laptop. You usually have to push a button on the
laptop to enable video out on vga or dvi ports. Try it on a desktop and see
if it works.

- Mike
 
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