My friend cracked the CCFL-backlit LCD screen in his laptop and he got intimidated when he saw all the screws he would have to remove. So, I offered to do it for him. I got the new LCD-backlit LCD display in. I didn't test the laptop beforehand to see if it would power on.
When I plug in the power adapter, the power LED comes on, but the power button does nothing...tested this with two power adapters (optical drive and hard drive removed, LCD unplugged, no peripherals).
I measure 0.27 V going to the power button (using the chassis ground and that seems low). All the other buttons on the same PCB have 3.3V going to them. Is there a standard voltage that should be going to the power button? When I press the button, it seems to work because the voltage drops to 0.
Thanks in advance for your help!
When I plug in the power adapter, the power LED comes on, but the power button does nothing...tested this with two power adapters (optical drive and hard drive removed, LCD unplugged, no peripherals).
I measure 0.27 V going to the power button (using the chassis ground and that seems low). All the other buttons on the same PCB have 3.3V going to them. Is there a standard voltage that should be going to the power button? When I press the button, it seems to work because the voltage drops to 0.
Thanks in advance for your help!
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