How to short the power button switch to turn on the laptop?
I’m helping a friend fix his M5-581t laptop.
It could be turned on but then it would shut down unexpectedly after a few seconds.
At first, I though it was either the AC adapter or DC jack.
Both of these were tested and replaced.
I also did test where I removed the RAM, 20G SSD, Hard drive etc.
I have been able to keep the laptop on by briefly shorting it on with the power button flat ribbon cable and then disconnecting it.
I think the button on the board is broken turning off the computer.
A replacement part has been ordered but I am weary that it will actually get shipped.
(The part is also unavailable on ebay or any other site except Aliexpress)
So,
The ribbon cable has 8 pin-outs, it it possible to use another power button switch from another laptop?
Also, What on the switch board could be making the laptop shut off?
Update (08/22/2019)
I tested the switch button with a multi meter and it seems to work as it should.
Also, I'm attempting to figure out the pinout.
so far I have
1 - ?
2 - ?
3 - LED 1 - Orange
4 - LED 1 - Blue
5 - LED 2 - Orange
6 - LED 2 - Blue
7 - S1 (Switch)
8 - Ground (S1)
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UPDATE
I received the new switch and installed it but still have issues.
The laptop stays on and the LEDs for the battery and AC adapter work but switch itself does not.
It does nothing when pressed.
I have tried going through the power settings to adjust what the button does in the Windows software but that does not work.
I have also tried updating the drivers int he ACPI computer hardware but that also did not make a difference.
I though maybe the board is somehow grounded by/to the case (like the battery) but am I wrong to think this can't be the case since I can short the laptop on while it is open . . .
I will retest the old and new power board switch today.
But, any suggestions would be helpful.
Milo さんによる