One of the two machines confirmed a series of operations. It was also confirmed that the transmission output was output from the terminal power system. The battery case is difficult to close, but I have not had any problems using it. You can also use it by inserting a rechargeable battery.
The other one also powers on and works. It's a little out of whack and needs some adjustment/repair, part of the battery case is melted and the lock is broken. There are some inconspicuous cracks of about 5mm on the main body side. The belt buckle is also missing.