Roland V-Accordion FR-8x Service Notes page 40

July 2013
Remove jack from OUTPUT R/MONO. Check the following values on the oscilloscope:
Remove jack from OUTPUT L L/MONO. Check the following values on the oscilloscope:
Press the Treble register [14] to pass on to the next test.
19. Device check
Wait until all the tests are performed and, at the end, make sure that all their results are OK.
For FR-8X e.g.
In case of error of one or more memory devices, the display will show a NG message near the involved item.
At the end, the accordion will automatically pass on to the next test.
20. Battery charging test
The display shows:
46
For FR-8XD Dallape' e.g.