Having problems with your HP Compaq Presario R4000 Notebook ?

My lap top r 4000 light up and fan works but no display could this be the battery I replaced the power supply today

Answers :

Hook it up to an external monitor, if that works. Might need a new Lcd display or at least an Inverter. May be a pinched wire near the hinge of the lcd display.

Doubt it's a batter problem, plug in the power supply , take out the battery and try.
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