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From: Greg on 13 Apr 2007 00:49
My 17 month 32" LCD monitor appears to have suffered an untimely death
this evening. When I turned it on, it briefly displayed the screen
image from the computer but then began making a somewhat high-pitched
chirps (1 per second) during which the screen flickered. After about
10 seconds the screen went black, though the chirping continued. Now,
when I turn on the monitor, although the "green light" on the button
indicates it is on, the screen remains black and it only emits chirps.

Does this failure sound like the inverter, backlight, or something
else (ie. something that I can't replace myself.)?

Thanks in advance.
-Greg

From: Arfa Daily on 13 Apr 2007 04:17

"Greg" <jgmillr1(a)yahoo.com> wrote in message
news:1176439757.097913.234650(a)y80g2000hsf.googlegroups.com...
> My 17 month 32" LCD monitor appears to have suffered an untimely death
> this evening. When I turned it on, it briefly displayed the screen
> image from the computer but then began making a somewhat high-pitched
> chirps (1 per second) during which the screen flickered. After about
> 10 seconds the screen went black, though the chirping continued. Now,
> when I turn on the monitor, although the "green light" on the button
> indicates it is on, the screen remains black and it only emits chirps.
>
> Does this failure sound like the inverter, backlight, or something
> else (ie. something that I can't replace myself.)?
>
> Thanks in advance.
> -Greg
>

If you shine a strong light at the screen, can you see an image in there ?
If so, then the backlight has failed, and the chirping is probably its
inverter. As you have a steady green light, this would imply that the main
PSU is working, so not where the noise is coming from.

Arfa


From: Greg on 13 Apr 2007 11:35
On Apr 13, 1:17 am, "Arfa Daily" <arfa.da...(a)ntlworld.com> wrote:
> "Greg" <jgmil...(a)yahoo.com> wrote in message
>
> news:1176439757.097913.234650(a)y80g2000hsf.googlegroups.com...
>
> > My 17 month 32" LCD monitor appears to have suffered an untimely death
> > this evening. When I turned it on, it briefly displayed the screen
> > image from the computer but then began making a somewhat high-pitched
> > chirps (1 per second) during which the screen flickered. After about
> > 10 seconds the screen went black, though the chirping continued. Now,
> > when I turn on the monitor, although the "green light" on the button
> > indicates it is on, the screen remains black and it only emits chirps.
>
> > Does this failure sound like the inverter, backlight, or something
> > else (ie. something that I can't replace myself.)?
>
> > Thanks in advance.
> > -Greg
>
> If you shine a strong light at the screen, can you see an image in there ?
> If so, then the backlight has failed, and the chirping is probably its
> inverter. As you have a steady green light, this would imply that the main
> PSU is working, so not where the noise is coming from.
>
> Arfa

Yes, that's it. I turned on the TV to do the flashlight thing and the
screen even briefly showed the computer image before going dark again.
However, when I shone the light onto the screen, I could just make out
the image.

So it is the inverter. Now I've gotta find a shop that either will
sell me the right replacement inverter or can do it themselves.

Thanks for your help.

-Greg

From: Arfa Daily on 13 Apr 2007 12:25

"Greg" <jgmillr1(a)yahoo.com> wrote in message
news:1176478508.440748.84710(a)w1g2000hsg.googlegroups.com...
> On Apr 13, 1:17 am, "Arfa Daily" <arfa.da...(a)ntlworld.com> wrote:
>> "Greg" <jgmil...(a)yahoo.com> wrote in message
>>
>> news:1176439757.097913.234650(a)y80g2000hsf.googlegroups.com...
>>
>> > My 17 month 32" LCD monitor appears to have suffered an untimely death
>> > this evening. When I turned it on, it briefly displayed the screen
>> > image from the computer but then began making a somewhat high-pitched
>> > chirps (1 per second) during which the screen flickered. After about
>> > 10 seconds the screen went black, though the chirping continued. Now,
>> > when I turn on the monitor, although the "green light" on the button
>> > indicates it is on, the screen remains black and it only emits chirps.
>>
>> > Does this failure sound like the inverter, backlight, or something
>> > else (ie. something that I can't replace myself.)?
>>
>> > Thanks in advance.
>> > -Greg
>>
>> If you shine a strong light at the screen, can you see an image in there
>> ?
>> If so, then the backlight has failed, and the chirping is probably its
>> inverter. As you have a steady green light, this would imply that the
>> main
>> PSU is working, so not where the noise is coming from.
>>
>> Arfa
>
> Yes, that's it. I turned on the TV to do the flashlight thing and the
> screen even briefly showed the computer image before going dark again.
> However, when I shone the light onto the screen, I could just make out
> the image.
>
> So it is the inverter. Now I've gotta find a shop that either will
> sell me the right replacement inverter or can do it themselves.
>
> Thanks for your help.
>
> -Greg
>

OK. You could try looking at

http://www.lcdpart.com/doc/ccfl.html

where you might find something suitable.

Arfa


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