That's probably the best way to go instead of everyone throwing things at you to try. That said, pull the computer connector side itself not just at the wall. Some computers may have circuitry to sense connectors at the body.
Also, unfortunately, it could be a motherboard problem and the power circuitry has finally bit the dust. The shop should be able to check all of that. but it does sound like the part of the system that senses and switches power when operated.
Gl.
Oh, as your name implies, I'm not a golf nut per say, but like to play. Went out last weekend for the first time in 4 years with relatives. Almost killed one of my foursome while teeing off.
Toe'd it off the 1st tee right through them sitting almost to the side of the box. Yikes.