Question about Toshiba Satellite P30 P35 Series Notebook

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Display Problem Black turns Red

Everything that is supposed to be black on the screen becomes red. I can tilt the laptop around until it is normal again, but if it moves a bit from that position the colors shift up again. This started all of a sudden I never had this problem before.

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  • norco kid Feb 26, 2008

    No, it's like a loose connection or something. Physically moving/tilting the laptop causes the change in colors.

  • Anonymous Oct 13, 2008

    Hey Norco,



    I know exactly what you're talking about. I have the same problem. Did you ever resolve it?



    100% sure this is not a video setting issue. I think it's some sort of electrical grounding issue.



    I'm getting tired of twisting my machine!

  • Anonymous Jan 07, 2009

    I have the same problem. Have to twist my laptop to fix it or press on the case in the middle just below the screen. Completely disassembled and reassembled my PC 3 times now but the problem persists. Really starting to get annoying. Just did it again while I typed this.

  • Anonymous Feb 06, 2009

    this is toshiba too....black turns red.....untill i tilt it to bout 40 degrees angle......

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I have the same problem, blacks go to red and twisting the screen sometimes helps.

I have an Asus F3JR. My first thought was a loose connection to the display, and since twisting the screen rectifies the problem temporarily I still think its down to a loose connection. The connection in question is hard to get to in a laptop though so some experience is required to fix this problem.

Posted on Mar 05, 2010

I just started having the same problem. But it seems not related to shaking or moving the laptop. tried reinstalling drivers and hardware with no luck. Also tried vithob sugestion and still did not work. Even when first booting up the windows xp logo screen is all red in the background. I am thinking hardware failer but want to make sure before I start buying componets.

Posted on Sep 23, 2008

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Hi,
I think ur appearence will be changing.So u right click on desktop - Properties - Appearence.There in color scheme, u put in Default(Blue) options.Then click OK button.Restart ur laptop and check it.

Posted on Feb 26, 2008

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SOURCE: Display Problem Black turns Red

sounds like you have a loose connection ....either into the screen or into the motherboard....the connection between board and screen runs through the hinge brackets and often comes loose after machine has been opened and closed a lot.....need to be comfortable opening up laptops to check the cables as it can be tricky to get to the back of the screen where the end of the ribbon cable is..

Posted on Jan 01, 2009

mdsaeed67
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SOURCE: Display Problem Black turns Red

the is some loos connection in the staip comming from lcd to motherboard.

check it.

Posted on Nov 24, 2008

6ya6ya
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Posted on Jan 02, 2017

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I have lenovo g550...my screen flickers in every 5minutes...


Failing Inverter An inverter, typically found inside a laptop computer, consists of a small board, which has impregnated electronic circuits stamped on it. Inverters look like thin boards about the of two sticks of chewing gum. The inverter and its bulb control the intensity of the liquid crystal display, which lights the screen monitor. The computer can control the output voltage of the inverter and either lighten or darken the screen. A special type of inverter can adjust the brightness of the screen by using an internal sensor to judge the room brightness, and then adjust the screen accordingly. Failing inverters give off some specific warning signs, which can be recognized by observing different screen characteristics.

Short Intermittent Display Upon turning on the laptop, the screen flashes on in the normal mode for a short period and then blinks to black. A very faint image appears in a dark background, which will be very hard to see almost invisible. After shutting off the laptop and restarting, the same mode occurs, where the screen appears normal for a few seconds then fades to black. This condition points to a failed inverter. To confirm this, plug in an operational external monitor; if the external monitor functions, the inverter has failed. b> Total Blackout with Ghost image b> The laptop turns on, as indicated by the power supply button, but the screen comes up black. The screen comes up black after restart. You might be able to detect a very dim or ghost-like image on the monitor. When you plug in a known functioning external monitor, the external monitor operates normally. This mode of display indicates a failed inverter. b> Long Term Periodic Operation b> With this failure mode, the laptop screen illuminates normally upon start-up and remains that way after several minutes, hours or even days, until it goes very dark again. Brightness controls or restoration attempts do not work. Most often, the screen will function normally with a computer restart, but will eventually return to black. Faint ghost images might appear, as seen in the total blackout mode. b> Dark With Color Variation b> Upon computer start-up, the monitor shows black or dark gray, accompanied by very faint images. The screen might have an intermittent color change, or remain on with a non-standard color variation, like pink or red. b> Auto Control Switch b> If the screen appears black, with no faint or ghost images, look for the lid switch near the back hinge. The switch, when depressed with a closed lid, shuts off the computer and monitor functions. Sometimes the switch becomes stuck in the closed position, disallowing the computer and monitor to turn on when opened. Pushing the switch manually several times can often free it up. If the switch tab has broken or jammed inside the case, it needs replacing. b> Loose Connection In this mode, the display looks normal upon start-up, but tapping the side case of the computer turns the screen black. More tapping results in the screen functioning normally then cutting out again. This condition points to a loose wire connection from the inverter to the LCD backlight lamp, or the video cable. The connectors can be accessed by removing the monitor bezel screws and pulling the plastic retainer off. Both connectors can be cleaned and refitted.

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It sounds like your screen might be going bad. Normally there is no setting you need to be doing to adjust colors on your screen. There are some settings when you click Start/Control Panel/Display to look at your display settings, but these normally just control the color around the windows. For example the normal or default color for the strip that is at the top of your internet browser is blue but you can change it. I would say that when you boot your machine if the colors are not what they should be normally during the boot process, then your screen is going bad. You might try Opening a Word Document then type words such as Black, Red, Green, Blue, Yellow, etc. on different lines in the document. Then highlight the word and change the font color to match the word. This might let you see if your colors are true colors or if the screen is bad.

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You could have a defective screen - a defective inverter or a CCFL lamp.
To determine if you have a LCD screen or video card problem, read this and follow the instructions.

Defective CCFL backlight, it may have the following symptom:
  • Screen flashs on red/pink and off.
  • Picture stays on in red and slowly be come normal.
  • Picture flickering with dim display or appear black.
  • Picture flickering on and off.
All these symptoms indicate that the LCD backlight lamp (CCFL Lamp) has reached the end of the life and all you need to do is replacing the CCFL lamp

Connect an external monitor to your laptop and power it up, if you see the normal Windows images then the video card and laptop is OK and the problem is definitely the backlight.

Dim image and/or dark display on the laptop's LCD screen indicates a faulty LCD backlight and it could be the inverter that supplies high voltage to the CCFL lamp or it is the CCLF lamp is nearly burnt out or burnt out, most likely this is the case.
The inverter can be replaced easily but the CCLF lamp is more time consuming and requires soldering skills.
Check out www.lcdparts.net for parts, repair service and DIY info.

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Display Problem Black turns Red


sounds like you have a loose connection ....either into the screen or into the motherboard....the connection between board and screen runs through the hinge brackets and often comes loose after machine has been opened and closed a lot.....need to be comfortable opening up laptops to check the cables as it can be tricky to get to the back of the screen where the end of the ribbon cable is..

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Display Problem Black turns Red


the is some loos connection in the staip comming from lcd to motherboard.

check it.

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