Roland V-Accordion FR-8x Service Notes page 42

July 2013
21. Power/Battery test
The display shows:
Disconnect the PSB-14U and verify that after a few seconds, the display shows : "Supply from: BATTERY".
Wait for a few seconds and check that the "Supply Voltage" ranges from +25V to +29.8V (if the battery is fully
charged):
Connect the PSB-14U and verify that after a few seconds, the display shows : "Supply from: ADAPTER":
Press the Treble register [14] to pass on to the next test.
22. Auto Power Off check
The display shows:
Press the [POWER] button.
PS: By pressing the [POWER] button you will also check the power off line.
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