Author Topic: Monitor Problem (Read 540 times)

NUKE · « **on:** March 10, 2004, 12:08:31 AM »

I have an NEC Multisync FE991sb, about a year and a half old. It recently began to have this problem:

After it's on for maybe 15 minuts, the screen will suddenly go black except for a very bright, thin horizontal white line across the middle.

I used to be able to lightly tap the side casing and the image would pop back on but now I have to bang the heck out of the top of the case to get the picture back. Once I smack it around, the picture stays on no problem until I turn it off again.

It's under warranty, but to send it out would be a major hassle. Does anyone have an idea what could be causing this? Seems to me it get's warmed up, then a connection is failing. Do I need a bigger hammer?

JB73 · « **Reply #1 on:** March 10, 2004, 12:29:47 AM »

precussive maintanence always works, especially on electronic equipment.

hehehhehe

umm your CRT tube is hosed i believe. either that or a capicator has a loose connection.

NEITHER one should be attempted to fix!!!

there;'s enough charge in a moniter even after it's been off for an hour to kill a person easily.

send it back.

JB66 · « **Reply #2 on:** March 10, 2004, 07:10:10 AM »

What 73 said:
NEVER Open your monitor for maintenance. There is a high voltage unit in most monitors; mine is rated at somewhere near 100,000 volts. Evidently the capacitors store a charge around 10,000 volts.
Have you thought about a local TV repair shop? For the cost to ship that beast, you could probably have it repaired locally.

Torque · « **Reply #3 on:** March 10, 2004, 10:55:10 AM »

Damn i never knew that thx.

NUKE · « **Reply #4 on:** March 10, 2004, 07:59:18 PM »

Thanks for the advice guys

~~I think a local TV repair place might be the way to go for me.~~

Reschke · « **Reply #5 on:** March 11, 2004, 02:07:30 PM »

Well personally I would call NEC and see what they recommend. It might be that they have someone local to you or they could recommend someone there and have it covered under the warranty. If not then send it back and get a new one. I have been using percussion maintenance on my 5 year old Dell 1226H refurb. It has worked for a while but now I have a continual blue/green shade that changes over to purple/red shade and then goes straight to black then comes back through the cycle once more.

I am most likely going to get a new LCD monitor and have looked at several. One is the Dell 2001P 20.1" monitor and the other is a Sony 17" LCD and both have a >16ms response time.

Chairboy · « **Reply #6 on:** March 11, 2004, 02:22:34 PM »

In the meantime, try setting your refresh rate slower. For instance, if it is at 80hz, set it to 72 or 60hz and see if that helps in the short term. My 21" CRT started doing what you described a couple years ago, and I dropped from 80 to 72hz and it went away.

bloom25 · « **Reply #7 on:** March 11, 2004, 05:14:54 PM »

The most likely cause is that there is a problem in the vertical deflection circuitry in the monitor. The result of this is sometimes a single horizontal line somewhere on the screen. If you can hit the monitor and the picture comes back, it may just be a bad solder joint or loose wire, probably a simple repair. Regardless, unless you know what you are doing you should NEVER try to work on a monitor or TV yourself.

Reschke · « **Reply #8 on:** March 11, 2004, 10:08:57 PM »

Quote

Originally posted by Chairboy
In the meantime, try setting your refresh rate slower. For instance, if it is at 80hz, set it to 72 or 60hz and see if that helps in the short term. My 21" CRT started doing what you described a couple years ago, and I dropped from 80 to 72hz and it went away.

Its already at 60Hz on the refresh rate. Plus I had a buddy who does repair work on televisions and computer monitors look at it. He has all but signed the death certificate on this one. His exact words were "Go buy a new monitor".

Siaf__csf · « **Reply #9 on:** March 16, 2004, 03:55:35 PM »

If you must run the monitor at 60hz, you should buy a new one regardless of vertical deflection problems.

Get a tft or a crt that can do minimum of 85hz at the resolution you use for playing.

Reschke · « **Reply #10 on:** March 17, 2004, 09:57:22 AM »

I used to run it at 85Hz but in the last few weeks I have had to try all different settings. Right now 60Hz seems to cause the color shifts to take longer to happen and has stablised the monitor a good bit.

Fortunately I am building my wife a computer soon for her business she is starting and I get to include the LCD in the business cost as my fee for being the "computer guy" that she is hiring to help her.

Torque · « **Reply #11 on:** March 18, 2004, 01:43:53 PM »

You might want to read up in some gaming forums, from what i understand LCD isn't the way to go for gaming.

DAVENRINO · « **Reply #12 on:** March 18, 2004, 02:17:10 PM »

Quote

Originally posted by Torque
You might want to read up in some gaming forums, from what i understand LCD isn't the way to go for gaming.

Hehe, not all LCDs are created =. I don't know anything about little LCD displays, but my rear projection LCD has zero perceptible blurring even with 2 jets closing headon at 700+ each.

DJ229