Icom IC-2GA Service Manual page 37

S7116A
IC601
(TONE
GENERATOR C-MOS
LSI)
/iPD4094BG
IC602
(8
STAGE SHIFT/STORE BUS
REGISTER)
TONE OUT
1
CE1 2
CE2
3
XouT
6
STROBE
1
DATA
2
CLOCK
3
LR40872
IC801
(TONE
DIALING)
XMRT
3
SWITCH
COL
4
COL
2
®
COL
«
3
®
V-
7
18
NONCONNECT
16 SINGLE
TONE
INHIBIT
15
.4
ROW
2
ROW
3
12
ROW
11
MUTE
OUT
10
COL
4
7"8