Casio WK-240 - Using Auto Step Up Lesson; Using Auto Accompaniment

WK-240
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SCHEMATIC DIAGRAMS
Main PCB: M822-MDA1
PEDAL (J1)
(to PSA/CN20)
USB (CN8)
(to PSA1/CN14)
(to KYA1/CN801)
(to KYA2/CN804)
Not used