Lenovo X240 won’t turn on

Judgekp Posts 1 Registration date Saturday August 11, 2018 Status Member Last seen August 11, 2018 - Aug 11, 2018 at 03:25 AM
Hi. I found my laptop’s battery has disconnected which should not be a problem. But the laptop won’t turn on.
But I have tried removing battery and RAM and holding down power button for 60 seconds, all other suggested solutions but after a couple of power button blinks, laptop still refuses to turn on.
I note the Fn, mute speaker and mute microphone keys are lit.
Any help would be greatly appreciated