Casio CTK-2200, Service Manual, Page: 24 / 35

CTK-2200
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A-3. When the “3” button is pressed at the end, a confirmation chord sounds and “SW OK!” is displayed
on the LCD.
A-4. Check to see if the LCD is as shown below.
A-5. Press the “0” button to return to the main screen.
B. AC ADAPTOR CHECK
B-1. Press the “3” button to select the “AC ADAPTOR CHECK”.
B-2.
Make sure that a value “X” shown in the illustration is in the range of 1 to 3.
B-3. Press the “3” button again.
B-4.
Make sure that a value “XX” shown in the illustration is in the range of 00 to FF.
B-5. Press the “0” button to return to the main screen.