![background image](http://html1.mh-extra.com/html/icom/ic-f1721d/ic-f1721d_service-manual_4203161041.webp)
9 - 6
H160
H155
H150
H145
H140
H135
H130
H125
H120
H115
H110
H105
H100
H95
H90
H85
H80
H75
H70
H65
H60
H55
H50
H45
H40
H35
H30
H25
H20
H15
H10
H5
H0
V5
V10
V15
V0
V25
V30
V35
V20
V45
V50
V55
V40
V65
V70
V75
V60
V80
V90
V95
V100
V85
V105
V110
V115
SP–
SP+
EXT.
SPEAKER
25PIN Connector
1
14
2
15
3
16
4
17
5
18
6
19
7
20
8
21
9
22
10
23
11
24
12
13
25
H_OUT2
TXD
RXD
RT
S
CTS
GND
VCC
MMUT
H_OUT1
H_GND
RD
A
T
BU
S
Y
3V
A
RCK
HANG
The combination of this page and the previous page
shows the unit layout in the same configuration as the
actual P.C. Board.
MAIN UNIT
• BOTTOM VIEW