Answering my own question:
After almost giving up, I thought I would try to turn on the player while holding down the eject button, and I got some Japanese characters, which may have reset the machine. Then I turned off and turned on the device again, and it worked. So, at least for me, turning on the device while holding down the open/eject button worked. Now, at least, I get to compare this to my old standard player!
After almost giving up, I thought I would try to turn on the player while holding down the eject button, and I got some Japanese characters, which may have reset the machine. Then I turned off and turned on the device again, and it worked. So, at least for me, turning on the device while holding down the open/eject button worked. Now, at least, I get to compare this to my old standard player!