Having problems with your Dell Inspiron 1525 Notebook ?
Replaced Dell 1525 screen, now the brightness can't be controlled
\015 Tech says that it's a motherboard issue. I can hook an external monitor to the laptop without any issues. Any ideas?\015
I would test the replacement screen and the inverter to make sure they are good. In most cases but not all, if the external monitor shows a picture then the main graphics chip is good and therefor should send the exact same signal to the integrated lcd....however, loose or bad cable connections, bad inverter and a bad screen will keep this from happening....go back and re-check all connections...the data cable that plugs into the back of the lcd is reknowned for this type of problem. Make absolute sure the cable is fullt seated and held in place with the adhesive pad.
If you replaced the screen, might be a pinched wire,or loose connection to the mobo (motherboard)
Repair Help & Product Troubleshooting for Dell Inspiron 1525 Notebook
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