I have an older Toshiba Satellite M45 S355 laptop.
It's a few years old (about 11 years I guess) but it worked just fine until one day, the power indicator light no longer came on (when it was plugged into the AC outlet and pressing the power button did nothing.
Although the battery is old and would only hold a charge for very short periods of time (under 1 hour)
the computer always came on. I tested the power wire with my multimeter and that's fine, so I know its not the PSU/cord.
I took the back cover off the laptop to see if a soldered connection broke where the power comes in, (after reading this is common over time from being moved and wiggled around). But my Toshiba has a few wires leading from it and no real way to physically see the inside of that female plug, to tell if it's faulty.
Thanks in advance for any ideas.
I even checked the on off button and it pops up and down as its supposed to.
Any ideas what might be causing it to not turn on? I'm sure its not battery related as it always turned on before, even with this really old battery.
I read it could be a Bad power supply, power button, and/or power board or inverter.
If the power indicator (battery charging) light no longer comes on then it is one of two problems:
Bad DC Jack
If that light would come on then there are a few other things it could be as well.
You can dissasemble your laptop and take the multimeter and see if you get good power/ground signal from the dc jack.
Outside of that, unfortunalty there is not much you can do as a replacement motherboard will cost 2-3x the value of that old laptop and that is assuming you are savy enough to completely dissasemble your laptop and change the board.