Question about UTStarcom CDM7025 Cellular Phone

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Video display is blank white (lighted) and it sometimes works normally, but not for long. Can it be replaced or repaired?

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Hello,

The problem with the phone screen is that the flex on the screen of the phone is worn or malfunctioning, that is why your display is blank atimes.

All you need to do is to replace the flex on the screen of your phone and you will see that the display will be stable.

Just change the flex on the phone and you will see that the problem is solve.

Take care.

Posted on Jun 11, 2010

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2 Answers

Laptop screen has gone blank


I assume that your laptop's display has been damaged. Are you sure that other things are working normally? If other components are working, then problem will be with the display unit. Try to repair or replace with new one.

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My HP DV5 1159se was working fine last night and then this morning I go to turn it on as usual and a blank white screen comes up. The start tones are the same and I could even type my password in to log on...


If the inverter board or the back light behind the screen were bad your display would be blank, "but windows would be visible barely" the white screen indicates a bad LCD and must be changed. It is also possible the video cable from the motherboard to the screen has come loose and will need to be reseated back into place to fix it.

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There's a vertical line appearing on LCD...what should i do?


Hi,


The problem is due to CCD/CMOS (the chip that physically captures light and creates the digital image) has broken. If this is the case , a repair would cost approximately $80-$130. This is the most common problem for a camera that takes blank/lines in images but where the menu display functions and old photo's display normally.Please confirm that these stripes are normally behind the menu's. Check to see if the new images are downloaded correctly and if the video function works normally. If this does not work, it supports the idea that the chip has gone.Take it to a repair,if the CCD has to be replaced then a new or refurbished camera would cost only slightly more.


Thank you !!

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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.
  • 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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Mortherboard,keyboard replacement on gateway m360


First I would ensure my video cable was firmly connected. Sometimes that connector does not seat all the way causing what you are seeing. That is the rectangular connector leading fro the cable on left side of the LCD to the motherboard. Normally there are several hardware components related to a white display. LCD, video cable, or motherboard all causes of white screen. Have you checked external video? What was the original issue before motherboard and keyboard replacement?


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1 Answer

Phone screen goes blank to a grey color (externallY) .


same problem, broke my screen, ordered a new screen off ebay and replaced it. now it works fine most of the time but sometimes external display freezes. sometimes goes black, sometimes goes multicolor pixelated (full screen, in blocks, or lines) when this happens sometimes touchpad still works, others not. removing battery usualy temporarily fixes.

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Purchased a Acer Aspire 2930z. i get a blank white screen.


Connect an external monitor to your laptop and power the laptop up, if you get a normal image on the external monitor then you have a faulty LCD screen and may be replaced. If you still get a white screen then you most likely have a faulty video card.

The video card is part of the motherboard and usually cannot be repaired, the motherboard is normally replaced but it may not be cost effective to replace. If the laptop is a several years old then it is time to get a new one.

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2 Answers

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Usually it's an lcd burn out where the screen needs replacement. Check the display button if it's just blank then press it to see if it comes on. As far as your friends white screen it not feasible to repair. A good thing to get on any digital equipment is an extended warranty. It does save you in the end when something goes wrong. The limited manufacture warranties are a joke. You should never rely on them.

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