Hm-136 - Icom IC-M602 Service Manual

12-4 HM-136

PTT
S1
UP KEY
DOWN KEY : 3.0V
16/9 KEY
UP
R2
6.8k
S2
DOWN
R3
15k
S3
16/9
R4
33k
S4
MC1
W1
C2 C1
W2
R1
470p 470p
12k
R5
SP1
W3 15
W4
: 2.0V
: 3.8V
W1 (CHASSIS)
J1
7 1
6 8 2
5 3
4
HANGER
12 - 5