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40896
July 27th, 2008 17:00
Dell 2007fpb backlight malfunction
look for a solution to repair my 15 months old Dell 2007FPB ( FPW compatible ? ) .
Who have a manual how to disassamble the LCD ?
When I switch it on I've a PC picture for about 2 seconds.
Without any source connected , I get the "no VGA cable connected" message for about 2 seconds.
Than it get's black
When I put a flashlight over the LCD I can see the picture.
It looks like that the HV-Generator for the backlight is somehow dead.
Any other glue ?
Taslow
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July 27th, 2008 21:00
I am having the exact same problem with a monitor I just bought secondhand. It's a 1505FP. Screen shows for 1-2 seconds, then immediately goes dark, but is still displaying an image if you look extremely close. From what I can gather so far from other forums, it seems to be a backlight issue, or the inverter that powers it. For some reason the inverter is doing it's job for a couple seconds, then shutting itself off.
It's quite frustrating! Any help or input would be appreciated!
megatina
3 Posts
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July 28th, 2008 09:00
looks like a problem across the families.
I guess I can repair it, but I need a advice how to open the chassis, there a no screws visible ...
When I can open the LCD , I can troubleshoot the root cause.
I also guess it's the inverter ( ~ 100 volt ) for the backlight.
probably a capacitor issue on the inverter, but I need to open the LCD first :-)
gpro
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2K Posts
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July 28th, 2008 10:00
megatina
3 Posts
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July 28th, 2008 17:00
Hey, Great ! couldn't find my model, but the 18" have a similar mounting.
I could open the LCD , many thanks !
On the end .... on Top and on bottom there a 3 lamps, on top , only two were on, on Bot, two out of three were mechanical broken.
I guess this is monitored by the inverter, so the inverter switch off after 2 seconds due a too low load.
Will see where I can buy two new lamps .