Casio CTK-530 - Accompaniment Volume and Tuning; Keyboard Tuning and Transposition; Getting Started: Before Using the Keyboard; Power Supply Options

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LED Latch
IC107
HD74HC373AP
LG
CPU
LSI101
UPD912GF-3BA
LVDD
LED Latch
IC105
HD74HC75AP
PLE
IC106
BA612
LED Driver
LO0 ~LO3
Q111 ~Q118
LED Driver
MD0 ~ MD7
La ~ Lg, Lp
MD8 ~ MD11
LED DRIVING