Screen won't turn on - Chicagoland Sportbikes
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post #1 of 9 (permalink) Old 03-18-2007, 10:48 AM Thread Starter
Just for the smell of it!
 
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Screen won't turn on

Sometimes turning on the lap top the screen will not light up it's a hp pavilion a couple years old is the thing shot or what please help.

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post #2 of 9 (permalink) Old 03-18-2007, 10:51 AM
stuck in 6th gear
 
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does this ever go in a dock? maybe your pc didn't detect it's environment correctly and is still trying to send video out ot the external monitor instead of the builtin LCD?

if you flip the cover back and forth and you see video briefly that's usually a loose video/power cable going between the motherboard and the LCD screen. you'd have to take it apart to check the connections.

try some of the stuff mentioned here http://h10025.www1.hp.com/ewfrf/wc/g...cname=bph05529

Last edited by Ernie; 03-18-2007 at 10:56 AM.
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post #3 of 9 (permalink) Old 03-18-2007, 11:38 AM
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If it is the backlight going out get ready to buy a new computer. That happened to one of my HP's you could always hook it up to an external monitor.
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post #4 of 9 (permalink) Old 03-18-2007, 12:10 PM
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In my experience, it is usually the inverter board and the LCD cable that is the first to go. Try wiggling the LCD cable and see if that does anything. If the video comes back on, then you need a new LCD cable. If nothing happens, or you get garbled video, you may need a new inverter board as well.

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post #5 of 9 (permalink) Old 03-18-2007, 01:45 PM
BSB > WSBK > MotoGP
 
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Quote:
Originally Posted by maoisn View Post
In my experience, it is usually the inverter board and the LCD cable that is the first to go.
+1

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post #6 of 9 (permalink) Old 03-18-2007, 02:28 PM
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If you end up needing an external monitor Heath, I have one for ya.

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post #7 of 9 (permalink) Old 03-19-2007, 08:50 AM

 
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Bring it with to tech day Heath and I'll look at it. If you need it looked at before that, just PM me and I'll come by.

Try an external monitor if you have one.

There is usually a hot key that allows you to toggle between LCD, Ext. Monitor and both. It's usually function and some F*key. Toggle between those and see if it works. You also may need to do this to get the external monitor to work.
There is also a small microswith on most models. It looks like a small recessed round buttong most of the time. Kind of looks like the little button that you used to have press to set the time on your watch. If that microswitch sticks, the PC thinks the screen is still closed and does not turn on the backlight.

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post #8 of 9 (permalink) Old 03-19-2007, 02:44 PM Thread Starter
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Thanks guy's now I just gotta try some of these things.

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post #9 of 9 (permalink) Old 03-27-2007, 04:47 PM
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I had this problem a few weeks ago on my laptop. If you angle the screen into the light, can you see anything? I could still see the screen image, but it was so dim it had to be at the perfect angle for me to see it. Turns out it was the inverter for the LCD. From what I reseached, that seems to be the main cause of this problem. I went on ebay and bought one for cheap incase it was something else, but it worked perfect afterward.
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