Question about Sony SDM-HS94P/S 19" LCD Monitor

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Screen worked fine now its just white

I was working with the screen yesterday it was fine. Today when I turn it on it loaded the picture fine and after 1 min it just went white. What gives Thanks?

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Re: Screen worked fine now its just white

If a component had blown it probably would not work at all...what you have as a problem is a component that gets hot and then fails (intermittent). These are tough to find until it actually fails completely even for an experienced technician. Could it be the inverter...yes or any one of a number of other components unfortunately. If it failed completely then a tech could find the problem (even without a schematic). The only thing I can suggest is to check Ebay for the identical model and if you can find one with physical damage to the screen it might be worth swapping parts....these are cheap as they are guaranteed not to work and you may get one that only has a damanged screen (no additional electronic problems). That's the best I can suggest unless you want to try sending it in for repair to the mfg...check prices may be able to buy one less expensively.

Posted on Jan 25, 2008

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Re: Screen worked fine now its just white

If it is still white you may be out of luck unless in warranty. Here are the steps to go thru to prove it's either the monitor or the video card. First take the monitor to another computer and connect it. If okay try it, being careful with all connections, on your machine again. If not okay and under warranty send it in to the mfg. If out of warranty and it's over 4 years old (and you use it for 3-5 hours per day) you might want to think new as opposed to repair. Another option is to try a local TV repair shop (not a computer shop as few will repair monitors). I have had CRT monitors blow a capacitor after a year of use. My 21 inch 500 lb (or at least it feels that heavy when I move it) monitor I am loath to part with has been running strong for 5 additional years. The cost was one capacitor and $30.00. If it worked on the other computer (doubtful based on what you said) you could have a video card problem. If the video card is built into the motherboard don't dispair. You can find one that will be adequate (unless you are a gamer and need a really high end video card) for less than $20. You will probably want an AGP can point you in the right direction. Assuming you are a home or business user an off brand video card in the $12-$15 range (or cheaper) should be fine....Make sure what you buy (and almost all are) is equal to or better than 800 x 600 resolution. 1024 X 762 is what most of the world uses. Good luck.

Posted on Jan 24, 2008

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When I power on my computer my monitor screen goes a solid whitish gray. worked fine yesterday, and then today nothing.

Laptop LCD screen turned completely white
What can you do if the laptop LCD screen turned completely white? From my experience I can tell that this problem may be related to the following:
1. Loose connection between the video cable and the LCD screen.
2. Defective LCD screen.
3. Defective motherboard (I assume the graphics card is integrated into the motherboard).

When you turn on the laptop, it starts but the image on the screen is completely white right from the beginning.
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.
On Toshiba laptops you can toggle between internal and external screens using Fn+F5 keys. Hold down Fn and press on F5 until you get video on the external monitor.
On IBM laptops use Fn+F7.
On HP laptops use Fn+F4.
It’s possible that you have to use a different key combination on your laptop but you get the idea.
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.
I 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.
I always 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.
The best way to find out which 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 and the inverter board. After that you connect another working screen and test video.
The original screen is white but my test screen works normal 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.
In my case this problem is related to the LCD screen and it has to be replaced.

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