it appears completely dead.
Hi, I hope you are still here. I have a Lenovo Thinkpad E531 that I use rarely. I recently tried to use it for the first time in about 3 months, and it appears completely dead.
The only sign of life is that when I plug in the (original) Lenovo power adapter to the laprop, the i in Thinkpad flashes red 3 times. That is it. Power button does not light up, nothing.
I can believe the battery is completely dead and un-chargeable, and it is now removed.
I also removed the hard drive, DVD drive, and RAM with no change in the problem.
I tried measuring the power plug with my voltmeter. Of course the 120VAC plug is plugged in to a live outlet. Then measuring the plug that goes into the laptop, from the rectangular grounded outer shell to the inner central pin, there is zero voltage.
Should it be reading 20V (live) even when not plugged into the laptop? If yes, that is at least one of my problems. Or is it smart so it only goes to high voltage when plugged into the laptop?
Thanks for any ideas or help.
Answering partly my own questions, in case someone else has a similar problem ...
I took the whole laptop apart. Confirmed 20V measured internally at the power plug, so the power supply is smart enough to not make the central pin live unless it is plugged in.
I also measured my battery. 10.8V printed on the battery, measured at 11.7V, go that is not the problem either.
Checked the switch and where it connects to the mother board. The power button is connected to a 4-wire ribbon. When the button is pressed, the two middle wires are momentarily connected. I'll assume the outer wires are to light the button, but did not test. Also tried shorting the two wires on the motherboard that the power button would connect when pressed - no change.
That was enough for me. Checked the easy things - power, battery, power switch, and will basically give up now ... except, as I have learned with other laptops over the years, I will try again once in a while to see if it fixes itself. Yes, it does happen, LOL.
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