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Screen is white on top half and shows partial image on bottom. Is the LCD bad, or the motherboard?

I can plug an HDMI cable and use the laptop with a TV.

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Hello,

Obviously the LCD is bad and needs to be replaced.

Thank you.

Posted on Nov 29, 2014

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: LCD flashes and flickers, partial display of bootup and then black screen

Try the following:

Sometimes when you press and hold the corners of the LCD area (not on the LCD itself, but on the frame), and see if it gives you a picture (or at least flickers when you do so).

My opinion is that your LCD could need rewiring or replacing.

Posted on Dec 15, 2007

nliwilson
  • 114 Answers

SOURCE: LCD screen partially display's

This kind of issue is usually due to a loose inverter cable, re-seating the cable is a relatively simple matter. 
If the laptop is still under warranty you should contact Dell to have it repaired, if on the other hand it is out of warranty you should shop around for a repair quote unless you are absolutely confident you can strip and reassemble your laptop.

Posted on Mar 13, 2008

SOURCE: cant get sound via hdmi connection from acer 6920g laptop

go into control pannel and acer hd set it there and also in sound, a wee bit of trial and error but its there. mine was the same, it cost me ouch on the phone! good luck mine works ok

Posted on Jan 19, 2009

dmcmullenii
  • 12 Answers

SOURCE: I have a Toshiba Satellite L505D-S5983 Laptop with

The price difference in the cables are what type of metal wire that is in it. One might have copper or even gold plated and the lower price one might have some low end metal. I have not seen any difference. Yes, all you have to do is plug it in and Windows 7 will recognize your TV. You might want to go into the Control Panel and open Sounds and make sure you have the audio turned on for your HDMI connection. Your laptop screen and the TV will be displaying the same.

Posted on Sep 04, 2010

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buzzpuppy
  • 36 Answers

SOURCE: How do I conect my Acer aspire 5750 lap top to my

"Out of range" means that the picture displayed by the laptop cannot be displayed by the TV, either because the resolution is not supported or the refresh rate is not supported.

Sometimes, I've had to set the refresh rate (from the laptop Display settings) to 59Hz to get it to work as opposed to the default 60Hz.

What resolution does your TV support? What resolution does the laptop support?

Matching these as closely as possible and you'll get the picture on the TV screen.

Good Luck and let us know how it goes,
-BuzzPuppy

Posted on May 01, 2011

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My led samsung tv has a horizontal line and the upper right corner shows a white vertical lines


Not good. You may have a tab failure. A repair shop may be able to diagnose and repair this, but most likely the lcd panel is broken. The panel is the most expensive part of flat tv's. A new panel will cost more than a used tv.

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Why some graphic motherboard in Graphic card port disply came but in normal display not came


Difficult to understand your question.
If an external monitor works then the problem is Cheapest to most expensive:
MB to Power inverter cable is bad (No light to board) to check shine a flash light at you screen if still black not this
Power inverter is bad
(No light to board) to check shine a flash light at you screen if still black not this
Cable from Motherboard to Laptop screen is bad flashing on wiggle test will show flickering image
Display panel on laptop is bad if this is the case replace the Display cable/ Inverter power cable/LCD
this may still not solve the problem if you are not sure take to a local repair shop

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1 Answer

A friends laptop is only showing a white screen


Step 1:
Fix a White Screen on an LCD Monitor

b>When an LCD screen has turned completely white, there are three normal causes: the screen is defective, the video cable is not connected correctly, or the graphics card on the motherboard of the computer is faulty. You will need to troubleshoot these possibilities to determine which problem you have. If you are not experienced in working on computer equipment, you should not attempt to disassemble your LCD screen because you could easily damage it. Seek professional assistance unless you have experience working on computer hardware.

Disconnect the white LCD screen from the computer by unscrewing the blue monitor cable. Connect the working LCD screen to your computer by attaching its blue monitor cable to the same slot. If your computer display does not show on the functioning LCD screen, try rebooting your computer. If it still does not display, the problem is with your computer's graphic card on the motherboard. Seek professional repair assistance. If your computer display shows normally on the working LCD screen, proceed to Step 2. Unplug the LCD monitor with the white screen. Disassemble the rear panel of the monitor with the small screwdriver. Carefully separate the screws into piles so that you can keep track of how to reassemble the monitor. Locate the internal video cable, a gray cable with a plug on the end that connects to the main components of the screen. See the References section for photos of the video cable for assistance. http://www.laptoprepair101.com/laptop/2008/04/13/laptop-lcd-screen-turned-white/ Unplug the cable, checking for any debris or blockage. Reconnect the cable firmly. Reassemble the LCD screen. Plug it in and connect it to your computer. If the screen is still white, you have a defective LCD screen. You will need to replace it or take it to a professional repair service for assistance.
b> b> b> Without this test you'll have to guess because as I mentioned before this could either bad motherboard or bad LCD screen.

You'll have to disconnect the video cable from the LCD screen (connector 2) and the inverter board (connectors 3 and 1). After that you connect another working screen and test video. For this purpose I'm using one of my test LCD screens. My test screen is cracked and because of that you see a wide white band in the center but it still works fine for this test.

The original screen is white but my test screen works normal (except the crack of course) and I can see the image. After this test I can tell that the problem must be related to the screen. After I assembled everything back together and connected the original LCD, it's still white. CONCLUSION. In my case this problem is related to the LCD screen and it has to be replaced. b> b>

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1 Answer

Dropped my laptop now 1 half of my screen is white and the other half is fine


Hardware damage

1) Laptop OFF, monitor OFF, connect a VGA monitor to the VGA port on the netbook.
The VGA port is on the Left Rear side.

This is an example of a VGA Cable, and VGA connector,

http://en.wikipedia.org/wiki/VGA_connector

Scroll down a little for the VGA Cable example.
NOTE* Color does Not matter. Usually it is Blue. Can be Black or White in color.

You can use a CRT type of monitor, (Looks like a small TV), or a flat LCD screen monitor if it has a VGA cable.

2) Turn the monitor on. If a CRT type of monitor allow it to warm up.
Turn the laptop on.
By factory default the display should show on the external monitor.

However there are at LEAST 3 display options available;

A) Internal monitor of laptop ONLY
B) Internal monitor of laptop AND external VGA monitor
C) External VGA monitor ONLY

Press, and hold down on the Fn key, (Bottom left corner of Keyboard), and at the SAME time tap once on the F4 key.
(The F4 key is the Display Toggle-Over key)

No display on external VGA monitor?
Hold the Fn key down again, and tap once more on the F4 key.

Display good on the external monitor? Fine. Your graphics chipset is good. Problem lays within the Display Assembly, (LCD screen, Display Cover, etc), or the Video Cable.

Also posted in case you do not repair the netbook, or repair is set for a later date. This way you can at least use the netbook at home.

Remove ALL power. Remove the AC adapter (Charger), and Battery.

Video Cable:
The video cable attaches to the motherboard, in the upper left area near the left Hinge.
It then leads under the left Hinge, and up into the Display Assembly.

(LCD screen/ Display Cover, Display Bezel, etc. is the Display Assembly)

From there it connects to the back of the LCD screen.
(The Mini 110-3135dx has LED backlighting, and does not use a screen Inverter )

Just due to normal opening, and closing of the laptop, the Display Panel Cable, (HP for Video Cable), can be pulled on.

This means the connection of the Display Panel Cable, at the motherboard side could have been pulled loose, or at the LCD screen side.

It can also damage the tiny wires inside the Display Panel Cable.

From your description, it sounds like the Display Assembly was open, when it landed.
Display Panel Cable connections should be PHYSICALLY, plugged in to ensure the connections are tight.

A visual examination will NOT do.
Connection on the motherboard side AND -> LCD screen side.

If there is visual signs of damage to the Display Panel cable's sheath, also suspect damage to the tiny wires inside the Display Panel Cable. (Stretched/Broken)

Check the connections first. You can leave the laptop partially disassembled, and check, before putting it back together.

If physically checking, by trying to plug the two connections of the cable in, does no good, you have to suspect if the Display Panel Cable may be damaged.

A continuity check with a multimeter set to OHMs, and checking each wire in the cable, is the next step of the diagnosis.
You can take the cable down to the nearest 'Mom and Pop' computer store, and have the tech check it for a few dollars.

Or due to the price of a replacement you may just wish to replace, and see if that was the problem.

The HP part number is HP 607755-001.

HOWEVER, this is supposed to be for a kit that contains 3 cables.
1) LCD Cable (Display Panel Cable)
2) Webcam Cable
3) Power Cable.

[ Power Cable:
The DC Power Jack is the jack on the laptop, that you plug the AC adapter ( Charger ), into.
The DC Power Jack is NOT soldered to the motherboard, with this model.

Instead it is soldered to a cable of wires, and the wires end in a plug.
The plug is unplugged from the motherboard, and the entire assembly is replaced as a unit. (It's a Power Jack Harness, really)

DC Power Jacks get broken. This one will be easy to replace ]

http://www.aliexpress.com/store/product/LCD-video-Cable-for-HP-Mini-110-110-1000-110-1100-Laptop-LCD-Cable-6017B0207601-6017B0232102/908032_556440323.html

Check the part number on your Display Panel Cable, and see if it matches up to the one you are going to buy, is the best method however.

Display Panel Cable checks out OK, or you have replaced it, and it doesn't solve the problem, the problem is the LCD screen.

Again, in my searching of the LCD screen replacements, I found they all use LED lighting for your model. (Mini 110-3135dx)
LED backlighting as a rule now, does Not use a screen Inverter.

Could I be wrong, and your laptop does indeed have a screen Inverter?
Only you will know once you open the Display Assembly, and check the Display Panel Cable connection at the back of the LCD screen.

If a screen Inverter is used it will be in the Display Assembly.
A screen Inverter could easily have been damaged in a fall, and a bad screen Inverter COULD show the results you stated.
I say -> COULD.

I believe the Display Panel Cable connection may be loose at the motherboard side, and/or LCD screen side, or it may be damaged.
If not I believe the LCD screen is the problem.

To check the Display Panel Cable on the motherboard side, for this model, you have to remove the Top Cover. (HP for Palm Rest Cover)
This means the Static sensitive hardware components for the laptop, will be exposed.

This means you NEED to wear an ESD wrist strap, once the Top Cover is removed.
BEST method however is to just put it on BEFORE starting to disassemble. This way you do not forget, and have a Static shocked laptop, that is only going to be good enough for a DOORSTOP.

One example,

http://www.radioshack.com/product/index.jsp?productId=2103245

The alligator clip needs to be connected to a good ground source.
I connect to an unpainted surface, of the metal frame of an open, empty desktop computer case.

You can also set a large metal serving tray (Unpainted), on the table you're working on, and connect to it.
Or a large metal knickknack. (Unpainted)

Pictorial guide that may help. Allows you to see someone working on an HP Mini,

http://www.insidemylaptop.com/replace-keyboard-in-hp-mini-1033cl-notebook/

Service Manual from HP Support (Free),

http://h10025.www1.hp.com/ewfrf/wc/manualCategory?cc=us&dlc=en&lc=en&product=4307901&


In the list click on -
HP Mini 110 and Compaq Mini CQ10 - Maintenance and Service Guide

[ Note*
On page 65 it shows the Wireless LAN cables.
Number 6 states,
"Disconnect the display panel cable from the motherboard"
It is actually referring to the Figure on the next page. Page 66.
And Number 1 ]


For additional questions please post in a Comment.

Regards,
joecoolvette

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1 Answer

Vizio half of screen is solid color bars. Top half works great.


You have either the circuit board that drives that half of the screen(one for top and another for the bottom) or you have a bad display panel.

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1 Answer

Top half of my monitor screen shows at the bottom


Try plugging an external monitor to your laptop and see how it displays on it. It can be any kind of monitor even the old fat crt's as long as it has a vga cable that will connect to your laptops vga port.

If the display does not immediately show up, then you will have to hit the FN (Function key)+(F1 thru F12) to show the image. Press and Hold the FN key then hit the correct F1 thru F12 key. The correct F1 thru F12 key will have either CRT/LCD written on it or it will have a display icon on it.

If the image displays correctly on your external monitor, then you will need to replace your lcd screen.

Mar 25, 2012 | Computers & Internet

1 Answer

Screen on laptop is distorted halfway


A) Video Cable connections are loose:
Connection at the motherboard, and the connection at the back of the LCD screen, in the Display Assembly.

Both need to be checked.

[For Toshiba the Video Cable is termed LVDS Cable.

Low-Voltage Differential Signaling Cable. I will just keep referring to it as the Video Cable ]

B) Video Cable is damaged:
Observe the sheath at the motherboard side of the Video Cable?
Is there obvious signs of damage to the sheath of the cable?

If so, there may also be damage to the tiny, thin wires inside the sheath, of the Video Cable.

Due to the routing of the Video Cable under the left Hinge, the Video Cable may be pulled on. This can create a bad connection.

Due to the above also, the Video Cable's sheath may be damaged, and the wires inside.

A view of the Video Cable by itself,

http://www.batterystyle.com/toshiba-satellite-a205-s5880-cable-p-484063.html

If the Video Cable checks out to be OK, the next item is the screen Inverter.
To test a screen Inverter you need a sensitive multimeter. This usually means expensive. { Or use a known to be good, compatible screen Inverter } Just thought I would state that. Don't want you to completely disassemble your laptop, just to fix a Video Cable, or screen Inverter. {Or LCD screen)

Most consumers decide to just replace the screen Inverter because;
1) If the problem isn't the screen Inverter, it is the LCD screen.
(A LOT of people buy an LCD screen, when all they really needed was a screen Inverter)

An EXPENSIVE part.
(LCD screen? $150 to $400 approximately. Screen Inverter? Usually around $22 to $48 )

2) The ease of access to replace.

As stated, if the problem isn't the screen Inverter, then it is the LCD screen.


1) With ALL power removed, AC adapter (Charger), and Battery, remove the Keyboard Bezel, and the Keyboard.

This is the motherboard connection side.

Display Assembly removed with Video Cable.
Now remove the Display Bezel, and LCD screen assembly, to access the Video Cable connection to the back of the LCD screen.


{NOTE*
The screen Inverter is mounted at the bottom of the LCD screen, and behind the Display Bezel }

This shows the Video Cable, and it's connection at the motherboard side,

http://www.irisvista.com/tech/laptops/toshiba-satellite-a205/laptop-disassembly-2.htm

Scroll down, click on the photo in Step 9.
The Video Cable is the cable to the upper Left side. Has one Red arrow pointing to the left.
The photo in Step 10 shows the Video Cable disconnected from the motherboard.

(This is Page 2 of a disassembly guide. Pages 1 through 4 are available above, and below. Page1::Page2::Page3::Page4::Find another model,
in white.
Just thought I would state that. Don't want you to completely disassemble your laptop, just to fix a Video Cable, or screen Inverter, or LCD screen) )

2) LCD screen side:

http://www.irisvista.com/tech/laptops/toshiba-satellite-a215/disassemble-display-panel-4.htm

http://www.insidemylaptop.com/remove-lcd-screen-from-toshiba-laptop/

All three links above will help you with checking the connections, or removing the cable to perform a continuity check. (Test)

Also with accessing the screen Inverter, and LCD screen.

For additional questions please post in a Comment.

Regards,
joecoolvette

Jan 25, 2012 | Toshiba Satellite A205-S5880 Notebook

2 Answers

My acer laptop shows whitescreen in suddenly . it will correct in restart time. after some ieme it will repeats.. laxmi machina belthangady


Actually some most related causes of the white screen problem are the one of the mention below.

1. Loose connection between the video cable and the LCD screen.
2. Defective LCD screen.
3. Defective motherboard

Have you noticed that in some cases the laptop screen may turn white because of poor connection between the video cable and the LCD screen. If you want to check this connection, you’ll have to take apart the display panel because the connector is located on the back side of the LCD screen.

You just check the video cable connection first. Reconnecting the video cable may fix your problem. If reconnecting the video cable doesn’t help, most likely you have a problem either with the LCD screen or with the motherboard.

Most likely you still can use the laptop with an external monitor.
Just connect the monitor to the VGA port on the back or side of your laptop and then switch the video output from internal to external mode.

When you turn on the laptop, it starts but the image on the screen is completely white right from the beginning.

On some laptops, in order to be able to use the external monitor,
you have to connect it to the laptop and then restart the laptop so the external monitor is detected by the laptop.

The best way to find out witch one is causing the problem is testing the laptop with another working LCD screen. Without this test you’ll have to guess because as I mentioned before this could either bad motherboard or bad LCD screen.

You’ll have to disconnect the video cable from the LCD screen (connector 2) and the inverter board (connectors 3 and 1). After that you connect another working screen and test video.

For this purpose you use one of my test LCD screens. My test screen is cracked and because of that you see a wide white band in the center but it still works fine for this test.

The original screen is white but my test screen works normal (except the crack of course) and I can see the image. After this test I can tell that the problem must be related to the screen.


Oct 08, 2009 | Acer Aspire 4315 Notebook

1 Answer

Flat panel displays half screen, mirrored on bottom half of screen


Have several problems with either a bad LVDS cable from Main unit to the LCD controll bd. Sometimes the cable is just not connected properly. If you reseat this cable and the problem still exists you most likely have a bad LCD control bd.

Jan 20, 2008 | Sharp Aquos LC-42D62U 42 in. LCD HDTV

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