![background image](http://html1.mh-extra.com/html/icom/ic-f4021t/ic-f4021t_service-manual_4256969034.webp)
H5
H10
H15
H20
H25
H30
H35
H40
H45
H50
H55
H60
H65
H70
H75
H80
H85
H90
H95
H100
H105
H0
V5
V10
V15
V0
V25
V30
V35
V20
V45
V40
20
1
21
40
J5
OPV1
OPV2
OPV3
GND
OPT3
OPT2
OPT1
SIGO
BU
S
Y
NC
BREF
NC
DMI
MCIN
DMO
MCO
T
PTT
O
PTTI
GND
D_IF
GND
CCK
CSI
CSO
NC
CIRQ
CSS
REM
NC
AFOUT
DISC
RMUT
BEPO
AFON
MMUT
NC
VCC
+5V
GND
D_IF
SIDE1
PTT
SIDE2
EXT
MIC
VR &
POWER
SWITCH
EXT
SPEAKER
SIDE3
ISENS
TI
GND
RX
to
PA unit
“J702”
VCC
T5V
GND
TX
to PA unit
“J701”
10 - 2
H5
H10
H15
H20
H25
H30
H35
H0
V5
V10
V15
V0
V25
V20
1
4
J701
TX
GND
T5V
VCC
to MAIN unit
4
1
J702
RX
GND
TI
ISENS
to MAIN unit
TX
GND
VCC
VCC
to ANT unit
to
CONNECT unit
“J901”
• PA UNIT (BOTTOM VIEW)
H5
H10
H15
H0
V5
V10
V0
H5
H10
H0
V5
V10
V15
V0
• CONNECT UNIT
(BOTTOM VIEW)
• ANT UNIT
(BOTTOM VIEW)
• BC-160 (BOTTOM VIEW)
H5
H10
H15
H20
H25
H30
H35
H40
H45
H50
H0
V5
V10
V15
V0
V25
V30
V35
V20
V45
V50
V55
V40
V65
V70
V75
V60
CHARGE
to Battery
VSENS
GND
• MAIN UNIT (BOTTOM VIEW)