Icom IC-M604A Service Manual - Page 47
HM-126RB/RG, 4 HM-126
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12-4 HM-126RB/RG PTT S1 UP R2 S2 6.8k DOWN R3 S3 15k 16/9 R4 S4 33k UP KEY : 2.0V DOWN KEY : 3.0V 16/9 KEY : 3.8V W1 (CHASSIS) J1 7 1 6 8 2 5 3 4 MC1 SP1 W1 C2 470p W2 W3 W4 C1 470p R1 12k R5 15 HANGER 12 - 4
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12 - 4
12-4 HM-126
RB/RG
J1
1
2
3
4
5
6
7
8
S1
S3
S4
S2
MC1
SP1
R1
12k
R4
33k
R3
15k
R2
6.8k
R5
15
W3
W4
W2
W1
C2
470p
C1
470p
PTT
UP
DOWN
16/9
W1 (CHASSIS)
HANGER
UP KEY
: 2.0V
DOWN KEY : 3.0V
16/9 KEY
: 3.8V