Block Diagram - Hammond XKL-5 Service Manual

CONTROL BOARD
CTH-38B (1/3)
CPU
U3 MKL15Z128VLK4
J204 J205
to MUSICAL KEYS
NOT USED
KCH-21A
H-BUS H-BUS
from HOST to DEVICE
JK1 JK2
+5V
CTH-38B (3/3)
J202
WR-HZ191-A
J203
+5V
UART TX,RX / H-BUS
DC-DC
3.3V
GPIO IN / SW SCAN
GPIO OUT / LED
KEYSCAN MATRIX
J209 J213
LOWER
MANUAL
FFC20B200 FFC20B200
J804 J805
KCH-22A
BH-73D 3CONTACT KEYS
NOT USED
DC IN
CU-1 IN
EXP IN
FS IN
FS OUT
MIDI OUT
J206
NOT USED
WR-CTH38-A
CTH-38B (2/3)
KCH-23A

2. BLOCK DIAGRAM

XLK-5
LED1