Question about Gateway GT4022 PC Desktop

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Computer monitor i figured sense you know about tv's maybe you could help me with my computer monitor.. The brightness keeps going down to "0", and the v-size and v-position keeps changing. Any solutions would be great. It's a Gateway Windows XP Media Center Edition 2005 815GM

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Try resoldering the vertical output IC.

Posted on May 12, 2008

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I don't understand anything about changing the display settings on my Acer p215h monitor I push the buttons but can't figure out what to do


umm...usually if it is a desk top there will be buttons either on the side, front or back or even the top, one looks like a sun and another looks like a square thats normally half white and half black. they are your brightness and contrast...push either end of the buttons to adjust more bright or less bright, more contrast or less contrast.

Sep 16, 2012 | Acer P215H LCD Monitor

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I constantly keep seeing "brightness 100"


Check out this link to the manual. It looks like your "On Screen Display" is possibly locked. This should help you unlock it if that's the case...

http://downloadcenter.samsung.com/content/UM/201002/20100208161857906/BN59-00992A-01Eng.pdf

Oct 31, 2011 | Samsung SyncMaster T220 22 inch Monitor

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Picture comes on the goes blank, reset power does the same condition pix for 2 seconds then goes blank. - power supply keeps proper voltage - top inverter transformer was squeeling the repklaced board - no...


You can still have bad backlights lamps, that is why the transformer is squealing due to poor connection on the wire at the lamp connection, the output of the inverter voltage will try to go up to keep the lamp firing and draws too much current and cause the inverter circuits to shutdown. The inverter has two detection circuits: over current and open lamp sensing (it will sense if the lamp will fire up and stay on).
Look for burnt/harden wires on the lamp assemblies.
http://s807.photobucket.com/albums/yy352/budm/Bad%20backlight%20lamp/

Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm/

Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague

Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.
Or www.digikey.com just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.

Apr 02, 2011 | ViewSonic VP930b 19" LCD Monitor

5 Answers

Panasonic projection tv (shuts down)


Does the power indicator blink? Let me know and I will try to help you out. Just keep responding to this same psot so previous info will still be available.

Jun 30, 2008 | Panasonic PT-47WX49 47" Rear Projection...

1 Answer

BRIGHTNESS window keeps appearing


try to clean the board and check for loose board solder! also check all tact switches!

May 30, 2008 | Computers & Internet

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Hi, did you solve your Samsung SyncMaster 910MP problem? I have the same problem, I can't see TV but I hear the audio; do you know if it's only a setting problem or i have to bring the monitor in a service...


I had what you describe here, I could hear audio, see the menu, all was there but no picture. Then I found out that my 910MP had done a spontaneous reset of the Contrast/ Brightness/ Color/ Sharpness to 0/0/0/0 by itself. I have raised the settings again and the video is back.

May 13, 2008 | Samsung SyncMaster 910MP 19" LCD Monitor

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ACER LCD Monitor display is too bright!


I have my husband's hp monitor and thought I was going to go blind. I turned down the brightness to 0 and it still didn't help that much. I decided to turn down the contrast and it worked. Hope this helps.

Mar 04, 2008 | Televison & Video

1 Answer

Sanyo TV Model# DS32224


This is usualy because there is either a high voltage regulation fault, or a main power supply regulation fault.

There are many things that can cause this. When the high voltage goes too far down, the raster will enlarge. High voltage regulation can be caused by faulty components in the feedback sensing, or in the high voltage multiplier, or in the flyback windings itself.

A quick way to sort of know if the high voltage is regulating is to wind the brightness and contrast from one extreme to another and observe the raster size. If the raster is changing size with the brightness on the screen, the regulation is not working well. In some of the low cost sets there will be about a 2 to 5% raster size shift in this case. The high end sets will have a near 0% shift in the raster size. A size change of about 2% is acceptable for most sets. If the CRT is weak, this test will not work well, because a weak CRT will not properly load.

If the main power supply is operating slightly over voltage, the raster size will increase. Usualy, the brightness will be a little on the high side when the supply is too high. Voltage regulation faults can be from warn components in the voltage regulator area, or in the feedback control.

This should be looked after by an experienced TV service tech. This type of fault can be involved.

Jerry G.


Nov 09, 2007 | Sanyo DS32224 TV

1 Answer

Monitor Coloring


Well most monitors come with 2 preset color temperatures and the option to customize it(the rgb setting). Your monitor has them as well 6500K or 9300K. 6500 is more reddish(like outdoors) and 9300 is more a bluish white(like a tv, i like the 9300 more). How u said its red and bright, what i would do is set the 9300 preset and if its still too red the customize the RGB by lowering the red. and If too bright then Lower the brightness(Press down on BRIGHTNESS CONTRAST page). If you don't have the manual you can download the full manual from LG's download site here: http://www.lge.com/support/manual. If you see that you can't get it just right,then the monitor might need adjustment from inside and you should make a qualified technician open the monitor and adjust that for you. Hope this was helpful.

Apr 26, 2007 | LG Studioworks EZ-FLAT E700B 17 in.CRT...

2 Answers

Screen goes black


I recently had a similar problem with a MAG LCD monitor. Try the following to see if this resolves your problem: - set brightness to a lower level. On LCD monitors you can go as low as 0 and still see the screen. With my problem when I set the brightness below 70% the problem went away. A few days later I turned it all the way up to 100% and the problem did not return. However I did not continue to keep it at that level. I found no need for it and find 50% to be exceptable for my needs. I would say yes it does have something to do with the lamp controler which controls the lamp brightness. I do not know all the technical reasons why a controler starts to have this sort of problem. If your monitor is still under warranty I would take advantage of the free repair otherwise keep the brightness below the level that causes the problem; for me that was under 70 percent. I hope this solution works for you. Perhaps there are others that can give you all the technical reasons why a controler starts to exhibit this behavior. Sincerely, Dean Kenneth Robinson

Aug 14, 2006 | LG Flatron F700P 17" CRT Monitor

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