EN 180
10.
Circuit Diagrams and PWB Layouts
10.4 E 272217190554 - 272217190562 Keyboard Control Module
10-4-1
Keyboard Control Module
19300_019_120403.eps
120403
Keyboard Control Module
E
E
2012-02-06
1.1
2722 171 90554, 2722 171 90555,
2722 171 90556, 2722 171 90557,
2722 171 90561, 2722 171 90562
Keyboard Control Module
+3.3 V
R3
5.6 k
Ω
V
SS
V
SS
V
SS
V
SS
V
SS
V
SS
V
SS
V
SS
RES
C1
103
R4
8.2 k
Ω
R2
3.9 k
Ω
R1
1.5 k
Ω
R5
18 k
Ω
CH+
ZD1
RES
CH-
SOURCE
VOL+
VOL-
POWER
R6
6.8 k
Ω
J1
CON3
1
2
3