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Less then 2 yr old flat screen - has died....I believe... Answered

My 17" Gateway flatscreen went blank this morning while I was at meeting. My wife claims she didn't do anything.....that it was blank when she saw it.

It was not in sleep mode, nor was a screen saver on. I noticed the "power button" which is normally green (power up, with computer signal) or amber (powered up w/out signal), would not come on. I attempted to see if any of the adjustments on the side might have been bumped, no effect.
I tested to make sure there was power from the surge protector (switched power outlets after a shut down) to no avail. After my 4th reboot, I subbed in my old monster sized 17" CRT tube monitor, and it works fine. Resolution is different, but it works.....but that pushed the monitor about 2 feet closer to my nose then I would like (it is about 10 inches from my face. )

Did I miss anything as far as testing the monitor before replacing it? I personally think the PSU in the monitor went on the fritz, but I am open to suggestions.

EDIT:
The old CRT is now back ni it's storage area, and the newest LCD screen is up and running.

Discussions

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Goodhart

9 years ago

UPDATE: the Power supply inside smelled a bit and was quite darkened around 2 transformers, and a capacitor bank......I suspect the power supply got "spiked"....

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NachoMahma

9 years ago

. If you don't have a pilot light, you may have blown a fuse.

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GoodhartNachoMahma

Reply 9 years ago

You mean an internal fuse I assume? Since all the other perifrials (and the computer itself) being on the same circuit, remained on

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NachoMahmaGoodhart

Reply 9 years ago

. Yeah, internal. And it probably won't look like what you and I are used to. :( May have to look for "F1" printed on the PCB.

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11010010110NachoMahma

Reply 9 years ago

Some common shapes are flat red SMT brick with 1x1 or 1x5 etc written on it (the x looks more like 2 overlapping A s) or about 7mm orange part tht looks like ceramic capacitor with similar marks on it

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GoodhartNachoMahma

Reply 9 years ago

I have seen some pretty weird looking fuses already :-) some that look like SM caps, some that look like odd looking transistors...etc. One like this is very common....

fuspico.jpg
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PlasmanaGoodhart

Reply 9 years ago

Hmm, it looks like a transzorb...

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GoodhartPlasmana

Reply 9 years ago

well on the outside you can see it is rated for 1/8 AMP (1/8A)

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NachoMahmaGoodhart

Reply 9 years ago

. Ah, the Good Ol' Days. When you could tell it was a fuse from ten feet away in a poorly-lit room. When men were men and women were damn glad of it. When ...

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bumpusNachoMahma

Reply 9 years ago

Heh, my friends and I were picking on one IT guy that came to fix something in our classroom. We asked what college he goes to, and he responded: "(College) University, where the men are men, and so are the women."

He seemed strangely serious about the phrase...

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NachoMahmabumpus

Reply 9 years ago

. I ended up in a bar in Des Moines that was like that.

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GoodhartNachoMahma

Reply 9 years ago

I remember in my (not so wild) youth ending up in a bar (think: desperite measures) that was filled with women.....then I discovered the sad truth about THAT bar....

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Plasmana

9 years ago

Did the internal fuse blow?

Oh, can I have your space-eating CRT? So I can make some more high voltage? :-)

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GoodhartPlasmana

Reply 9 years ago

Haven't gotten "inside" yet....I have tested the LED behind the buttons, and the button functionality and all that works so far. Next, a few tests on backlight and (internal) Power Supply

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Solderguy

9 years ago

This is the exact same thing that happened to my 19 inch monitor. One minute it was working, the next minute the screen was black and wouldn't turn back on. The monitor was only 7 months old. But, the manufacturer was kind enough to replace it, no charge.

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GoodhartSolderguy

Reply 9 years ago

yeah, mine was 2 months out of the extended warranty :-(

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Goodhart

9 years ago

Ok, I have verified that the switches were working, and the LED behind the switch is working.....now I have to take a little time and see what the problem was. (my wife says she will shoot me if I find out nothing was really wrong with it :-0

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NachoMahmaGoodhart

Reply 9 years ago

. If worse comes to worst, I have a spare bedroom. heehee

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GoodhartNachoMahma

Reply 9 years ago

Oh I am sure there was/is something wrong with it (and if I can't discover what it is, something will be wrong with it ;-)

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GoodhartNachoMahma

Reply 9 years ago

it is one of the few advantages of having a non-techie, non-geeky wife :-) "yeah dear, the BIST failed in the main driver IC and that caused the backlight to overload and burn out....poor design obviously" ;-)

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guyfrom7up

9 years ago

well, depending on the quality of the LCD and how long you have it on every day (do you leave it on all the time?) it might just simply burn out after a couple years. What I don't get is why they don't put the power supply as a seperate unit?

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Goodhartguyfrom7up

Reply 9 years ago

Yeah, this was an internal supply. After a bit of debate, we went out and charged one (a StarLogic) monitor, because that CRT in my face was impossible. yes, we left it on all the time
The new one has an external PSU

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guyfrom7upGoodhart

Reply 9 years ago

whenever you arn't using your LCD (scuh as when the computer is off or noone's around) just turn off the LCD, it'll double it's lifespand.

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Goodhartguyfrom7up

Reply 9 years ago

Well, the computer is on (except during storms) all the time too. Anyways, I will have to give that a try, since Sleep mode and the "blank screen saver" are not really computable with my current setup :-) the blank screen save is still on anyways

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LinuxH4x0r

9 years ago

Shine a blight light on the screen while playing a movie. If you can see movement you know its the backlight (ccfl or inverter)

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GoodhartLinuxH4x0r

Reply 9 years ago

Would the Power indicator LED go off if the had gone?

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LinuxH4x0rGoodhart

Reply 9 years ago

no, that would still work. The inverter is like a ballast for a florescent light. Did you try shining a light on/ in it? Keep messing around with that

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GoodhartLinuxH4x0r

Reply 9 years ago

No, I get no light from the Power on LED. There is power at the plug, but not where it needs to be :-)

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LinuxH4x0rGoodhart

Reply 9 years ago

open it up and reassemble it. It might be loose or the power supply might have failed

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GoodhartLinuxH4x0r

Reply 9 years ago

Yes, That is precisely what I will be doing....tomorrow.

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whatsisface

9 years ago

Rip it open and look at the insides. The vast majority have 3 boards, One power, One Backlight and one for the LCD itself. I'd say something on the power board has blown.

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Goodhartwhatsisface

Reply 9 years ago

I believe it is the power supply too. And since I can not get any response from it, I will have to (out of curiosity) rip it open :-)

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Lithium Rain

9 years ago

Maybe it overheated. Have you tried just letting it sit for a day and then plugging it in? Just a thought...

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GoodhartLithium Rain

Reply 9 years ago

Well, even if that is the case, something it wrong with it. And it appears to be the PSU, nothing else makes much sense to me.