Casio PX-780 Service Manual page 58

No.15 Charge LED
No Operation
Set an uncharged main bat-
tery.
1
Set the IT-3000 to HA-B61IO
(IT-3000 can be turned off).
2
Remove the main battery from
the IT-3000 and set it to HA-
B61IO.
3
Set an uncharged main bat-
tery.
4
Connect the AC adaptor for
charging (DT-9020CHG).
5
Remove the AC adaptor for
charging (DT-9020CHG).
6
Display
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Inspection contents
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Confirm that the charge LED
lights in red.
Confirm that the charge LED
lights in green.
Confirm that the charge LED
turns off.
Confirm that the charge LED
lights in red.
Confirm that the charge LED
turns off.