Hi Jim,
Thanks for uploading that manual very helpful. I have a 301D that has a newer version AM PCB PB-1556E.?My manual only shows the older version without the switch. When trying to make FSK adjustments this switch needs to be switched up and down for proper alignment. I figured it out but it would be nice to have the confirmation from the Japanese manual but it’s not in English.
If anyone has the English manual that shows the AM board with switch please upload. The manual uploaded must be a newer manual to capture the newer AM PCB.
Thanks,
Michael