when the screen is black, in a well lit room, see if you can make out an image on the screen. It will be very hard to see. If it is there, then its either the inverter or the back light. (90% of the time its the inverter, the back light is part of the panel)
Okay, thanks very much Jason!
The symptoms seem similar to what you are describing. Power works, can
see the initial screen with "Acer" logo, can see for a few seconds the
desktop & windows on it, which then fades & screen appears to go
black.
I will open it up & find the part. While I am there, I will dust off
everything, & inspect. Then if I need further direction I will be
back. I used to build & inspect small elex units, back in the day. It
doesn't sound difficult, as long as it doesn't require diagnostic
tools that we don't have.
But as I said, I replaced the monitor, so if someone else needs a
monitor & wants to attempt a repair, e-mail me & it can be yours.
Thanks very much,
Liz
On 4 January 2012 23:56, Jason Couture <plaguethenet@gmail.com> wrote:
> You can give me a call sometime if you like, and I can tell you what you
> need to know. Its a bit much to type out. If you're interested reply
> directly to me and ill give you my number.
>
> On Jan 4, 2012 11:54 PM, "Jason Couture" <plaguethenet@gmail.com> wrote:
>>
>> If you open the casing, you'll find 1 to 4, 2 wire electrical connectors.
>> (Usually two). The wires are usually pink and white, but can be different.
>> They are the power wires for the back light, which is ccfl? I think? They
>> require a high voltage to operate (30,000v) the inverter changes the
>> internal voltage (5-12v) to the required voltage. If its burnt out, the back
>> light may not work at all, or may work at first and then turn off. If you
>> look carefully the picture will still be on the screen but almost impossible
>> to see. Attached are some pictures of the wires from a lamp I removed from
>> an Acer LCD panel. Of all the ones I've taken apart this is more or less
>> universal. The inverter is usually highly specific to the monitor. Easiest
>> way to find one is to take the old one out and get the model number off of
>> it.
>>
>> On Jan 4, 2012 11:40 PM, "E Johnson" <iris.gates@gmail.com> wrote:
>>>
>>> I bought a new monitor. We cannot be down, this was being used for a
>>> project. This is now a (non-working) retired spare.
>>>
>>> Can you tell us more about whatever inverter it might need, or how to
>>> diagnose?
>>>
>>> I would like to hear how to fix these, in case Monitor 2 (identical
>>> twin) goes down. Identical twin was actually bought earlier & is 5
>>> seconds out of warranty, but still rock-solid. But if it dies we will
>>> not be happy campers.
>>>
>>> Thanks,
>>> Liz
>>>
>>> On 4 January 2012 23:22, Jason Couture <plaguethenet@gmail.com> wrote:
>>>
>>> > Sounds like the inverter, did you see if they were available? There
>>> > usually
>>> > fairly easy to change.
>>> >
>>> > On Jan 4, 2012 11:20 PM, "E Johnson" <iris.gates@gmail.com> wrote:
>>> >>
>>> >> Offering this here first. I have a monitor which started blacking out
>>> >> 3 days ago. I always liked this monitor (had 2, the other one still
>>> >> doing just fine!).
>>> >>
>>> >> This is an Acer Flat-screen monitor, 19-inch screen, 1680x1050, DVI or
>>> >> VGA input. The resoultion on this is especially nice. Good color, at
>>> >> least I always enjoyed it.
>>> >>
>>> >> Specs:
>>> >> Acer X193WBD. 19" Widescreen LCD Monitor - 5ms, 1680x1050, (WSXGA+),
>>> >> 2000:1, DVI, Black (A179-1944)
>>> >>
>>> >> This ls not-quite 3 years old, still in warranty. It powers on, but
>>> >> flickers, then black-screens. Acer says they can and will fix it
>>> >> (free parts / labor) . It needs to be shipped back to Acer (in Texas),
>>> >> who will fix it & return within a few weeks.
>>> >> Shipping might be around $40.00, but is still considerably cheaper
>>> >> than buying a new monitor like this. Acer ships back at no cost, the
>>> >> only shiping cost is one-way, TO Acer.
>>> >>
>>> >> Or if you are good at fixing stuff like this, it might be just the
>>> >> thing.
>>> >>
>>> >> E-mail me for details if interested. I'm in Worcester near Elm Park.
>>> >>
>>> >> Liz J
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>>> >
>>> >
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