ERS487 New User

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  • @AnhEZ28 You're right! I measured the two first PINs of the built-in keyboard while pressing the POWER button and I measured 137 ohms on the multimeter. Those pins were pin 27 and pin 28. I then shorted those 2 pins with the multimeter probe tip, and the portable computer booted. -Thank you, perfect. That is the solution!
  • The laptop is currently disassembled and I am looking for the mainboard fault. Is there a method, e.g. for service technicians, to start up the pc other than pressing the power button on the built-in keyboard? (-If so, I would save myself having to connect the keyboard after each troubleshooting step)
  • The mainboard has a defect and it is not possible to start Windows. The only thing that I can do is to 'power on' the portable computer using the built-in keyboard. Is there any way to boot up the laptop other than using the built in keyboard? For example if I bridge pin 27 with pin 28 on the keyboard connector or use…
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