Laptop troubleshooting

SCREEN PROBLEMS	SOLUTION
No picture on the screen (laptop seems to start but there's not even a faint picture on the screen)
The laptop is not starting up properly because of another hardware problem (CPU, RAM)	needs detail diagnostic
The video chip on the motherboard has died	Replace motherboard
The screen has died	Replace the screen
Faint picture on the screen (point a light source directly on the screen you should be able to see the picture)
The screens fluoro tube backlight has died (in some models the fluoro can be replaces by a professional)	Replace screen
The inverter board that powers the backlight has died	Replace inverter board
The inverter board is not receiving the startup impulse from the motherboard	Replace motherboard
Cracked Screen (physically broken)
The screen has been physically damaged by an impact.	Replace screen
POWER PROBLEMS	SOLUTION
No lights coming up on laptop even though it's plugged into power.
The power supply is faulty.	Replace power supply
The power input socket is broken inside the laptop (jack socket).	Fix power socket on the m/board
The power supply cable is broken.	Fix cable or replace power supply