Dell Laptop Screen Problem

[Matt-Page]

Hey all,

I need a bit of advice for something which i thought would be an easy fix.

The problem is on a Dell Inspiron 1501 Laptop. The LCD backlight stopped working. I proved this by connecting the laptop to a CRT and using the FN + F8 key to get a display on a monitor.

Fine i thought, so i was able to get another LCD from Dell after twisting their arm as the Warranty had recently run out. Dell true to their word delivered the LCD today. I fitted it (along with a new cable) carefully making sure all connections were seated correctly.

Unfortunately the same issue is still there, the screen comes on but there is no backlight and it is nearly impossible to see without attaching an external monitor. If i go into diagnostics it does indeed fail on connecting to the Inverter! I have just replaced the LCD (which comes with the inverter does it not??) so i am not sure what else to try.

Thoughts?

 

[beermonster]

if it was a complete lcd assembly with plastics and cables yes it should come with an inverter, although no backlight can be cause by a faulty mainboard also.

 

[Matt-Page]

So is there anything else that i can try?

Yes, it came as the LCD with the inverter attached to the bottomw of the screen. I have checked the cable going into it as well, and swapped the cable which goes from the top of the LCF (log cirguit board, 10 odd pin connection) to a small connection on the inverter (rectangle shaped connection) and then to a port on the motherboard.

I have tried resetting the CMOS battery as well.

Anyone with any other ideas?