Korg PA3X Service Manual page 92

Press Start command to start PA3x test
PA3x tests list
CPU components test
Durante component testing process, PA3x automatically verifies CPU components
funcionality, its important that the 2 USB Flash have been inserted and MIDI cable must
connect MIDI In and MIDI Out plugs
Nor Flash
TGL
Voice Proc Dsp
RTC
USB Front Disk
USB Rear Disk
Hard Disk
Batt. Charger
MIDI Loop