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Display screen has small black box - LG Computers & Internet

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6ya6ya
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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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budmrtn
  • 11361 Answers

SOURCE: Monitor comes on and displays small box of monitor

It does the same when attached to another PC? It can be bad caps, lamp assemblies, etc.
If you are going to DIY and already try the monitor with another PC, and have proper tools and know safety precaution then please read on:
Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply (they should be replaced in a set), blown fuses; poor solder joints, failed inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed HP monitors to get some ideas what to look for: http://s807.photobucket.com/albums/yy352/budm/
Post back what you see inside so we can guide you further and it will help out other people in the future also.

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: 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.
Please leave rating if it helps.

Posted on Feb 24, 2011

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  • 1 Answer

SOURCE: My LCD syncmaster 2243swx screen

It could be a power supply in the pc died and then it probably took out the video card. It could be spike in power source took out the PC or components.

The morel hear is prove it. What have you done to confirm it is the monitor have you connected a monitor that works to it like a old one that a friend has does not use it. As it stands not enough data to tell what the problem is.

You could be like a friend of mine He unplugged his PC from the box from the electric outlet to protect it from the thunderstorm and left the modem plugged in and the lighting came through and destroyed the whole system so he had to have a new box built which meant a new motherboard CPU memory hard drive DVD/CD drive power supply.

I just had the thought you could be talking about a TV and a cable company black box in which cause it could be you need to take the remote and change the input.

Posted on Jul 05, 2011

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1 Answer

Toshiba 55su670u has small black lines on the screen. is there a fix for this?


If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/
Line faults & possible causes to LCD & Plasma screen are given with illustrations. You can get an idea about the fault to an extent. Faults to all LCD & Plasma screen are similar, irrespective of its brand and screen size.
Search the site by type in the "BRAND NAME" of your device; (Exclude the model number), in the "Search box at the top right of the display window of the Homepage" to get gathered related posts

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Display on screen is small, surrounded by black screen how do I enlarge entire display


Right click the desktop background, and click screen resolution. Move the slider as high as it goes, and click apply.

Apr 07, 2014 | HP Compaq Presario 2500LA Notebook

1 Answer

My LCD syncmaster 2243swx screen display only 4 seconds and Black screen. When I touch Source the small box show digital / analog and 4 second display and black screen again.


It could be a power supply in the pc died and then it probably took out the video card. It could be spike in power source took out the PC or components.

The morel hear is prove it. What have you done to confirm it is the monitor have you connected a monitor that works to it like a old one that a friend has does not use it. As it stands not enough data to tell what the problem is.

You could be like a friend of mine He unplugged his PC from the box from the electric outlet to protect it from the thunderstorm and left the modem plugged in and the lighting came through and destroyed the whole system so he had to have a new box built which meant a new motherboard CPU memory hard drive DVD/CD drive power supply.

I just had the thought you could be talking about a TV and a cable company black box in which cause it could be you need to take the remote and change the input.

Jul 05, 2011 | Samsung SyncMaster 710VT TFT LCD Monitor

1 Answer

A small portion of monitr screen is solid black with no display.


Sounds like you have a broken screen.
Is there a crack along the edge of the black area?
If you apply a little finger pressure in the black area does it change color? If it doesn't change color then you you have a cracked screen.
Therefore you need a replacement screen.
Check out www.lcdpart.com for parts

Mar 30, 2009 | Acer Computers & Internet

1 Answer

Picture display format doen't fit 32'' screen


if you have cable box or a sattelite change the resolution of the STB to 4.3

Feb 06, 2009 | Sanyo DP32746 32 in. LCD Television

1 Answer

Screen stays black


Startup while tapping the F8 key,this should open the startup options screen,Select start up in VGA mode,If that works,then you need to update the video drivers

Jan 07, 2009 | Toshiba Satellite L305D-S5895 Notebook

1 Answer

Black box in middle of screen


Note that the large black box goes away when pushing buttons on the tv (ex: the black box will disappear to show the volume setting when changing the volume on the tv but it will cover the picture and the menu display of the dtv box).

This is caused by the closed caption setting of the television set NOT the captioning of the converter box. To fix this you must open your television's menu, find the ccd/closed caption option, and turn it off. This is a frustrating problem as when most people are told to shut off the captioning they try to do so at the box.

Normal dtv box captioning will appear as a small text box at the bottom of the screen as you would expect - not as a giant black rectangle that covers most of the screen. If you do want to shut this off too you will find that you can't do it through the usual menu options (the menu will only allow changes to font, color etc.) - there should be a ccd button on the remote that when pushed will scroll through ccd-1, ccd-2,... off.

Dec 01, 2008 | Toshiba MV13L2 13 in. TV/VCR Combo

1 Answer

DLP HL-R5067W


Your model has a maximum resolution of 720p. What you might want to do is make sure that both your cable/sat box and game stations are outputting at no more than 720 resolution. It's easy to assume that all HDTVs may accept a higher signal, and while they might, some of the scene changes or handshakes may make that operation cause the symptoms you describe.

Feb 08, 2008 | Samsung DLP HL-P5663W 56" TV

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