Casio CTK-245 - Manual (Page 34)

Troubleshooting
E-32
The key or tuning does not
match when playing along with
another instrument. The tuning or transpose
parameter is set to a value
other than 0 or 00. Change the transpose or
tuning parameter value to 0 or
00. Pages
E-29, 30
Missing Song Bank tune Melody part is turned off. Press the MELODY ON/OFF
button to turn on the melody
part. Page E-26
Problem Possible Cause Action See