Icom ic-2730A - Page 44

9-2
AF
AMP
D/A
LEVEL
CONV
SP1
AF
AMP
LPFHPF
W300
+8
REG
J100
1
2
3
4
5
6
7
8
PWR
CTRL
LPF
BUFF
IDC
MIC
AMP
BUFF
ATT
J102
J101
DTMF
MUTE
EEPROM
MATRIX
X300
RESET
S14
COM
2
A
3
B
S15
COM
2
A
3
B
LCD
DS1
R.M/CALLS13
MW
S9
R.BANDS11 R.V/MHzS12
L.V/MHzS5
POWERS3
MONIS7
LOW
S8
L.BANDS4
MENUS10
L.M/CALL
S6
RESET
J101
1
2
3
4
5
6
7
8
MIC
AMP
BUFF
BUFF
+8
REG
+8
REG
BUFF
BUFF
UT8
AFSW
FIL
SP
VCC
PTT
MUTE
SW
CPU3.3V
5V
VR
ELEC.
MUTE
SP
PCON
AF
98_DATA
REG
MIC_PTT
REG
DETMUTE
AF
FIL
3VS
5VS
FANHV
REG
IDET
DETECT
CURRENT
NOISE
FIL
REG
DETECT
VT8
AND
CLONE
SP
REG
3.3V
MUTE
3VS
MUTE
DET
TEMP
SW
VCOMOD
REFMOD
TEMP
8V
MICU/D
EXTMIC
PTT
MICE
MIC
GND
MICIN
UTX_C
VTX_C
BTAF
RPT
RPT
SW
DTMFO
BTMIC
I SENS
MOD
MUTE
3.3V
VOX
8V
BT3.3V
BT3V
REG
UT8
VT8
MOD
MUTE
DTCS
19.6608MHz
1
to CONTROL UNIT
3
CPU
5
4
6
2
EXT I/O
X3
IOSTB
CK
IOEN
DATA
HV
LOW VOLTAGE
DET
PDV ALARM
To BTTo CPU
5
3
to MAIN UNIT
CPU
6
1
4
2
CPU3.3V
8V
8V
CONTROL UNIT
MAIN UNIT
L_DIALA
L_DIALB
R_DIALA
R_DIALB
IC1
J6
IC310
Q306 IC313
Q301/Q308
IC320/IC324
IC306/D333
IC311/D325/D332
IC314
IC319
Q32/Q34
Q27/Q28
IC301
D313-D317
J300
Q307
IC300
IC307
Q151/Q152
Q102/D100
IC101/
IC101
IC315/IC316/IC317
IC308
IC112/
IC104
IC112IC100 IC112
IC312/Q304/Q305/D327
CLIN
CLOUT
IC106
IC108
L_AFMUTE
R_AFMUTE
Q106
IC105 Q104 Q105
IC109
AF_SW AF_RSW
IC107
IC104
IC103 IC102
IC205
IC205
IC110 IC111
Q112/Q139
Q113/Q140
KEY
BACK
LIGHT
R.VOLV
L.VOLV
R7
R51
R50
L.SQLV
R.SQLV
R3
LOW
MONI
L_V_MHz
MW
R_V_MHz
L_M/CALL
L_BAND
POWER
R_M/CALL
R_BAND
MENU
IC5
IC6
GND
MICE
MIC
RX_DATA
TX_DATA
8V
CTRL3V
MIC
8V
D101
PTT
MICE
PTT
DET
Q102
MICIN
EXTMICD100
IC102
GND
MICU/D
IC102
RESET
3.3V
3.3V
C_98_DATA
C_MICSEL
C_MICUD
C_MIC_PTT
LIGHT
BACK
DIMMER1-4
LCD
DS2-DS9Q103,D103
DS10,DS13-17
D102
IC103
IC103
MIC
SW
IC100
CTRLMIC
VCC
Q302
SW
IC325
VCC
VCC2
8VS
IC321
CONT8V
VOX
IC7
REG
3.3V
CTRL3V
IC2
LCD
DRIVER
VCC
VCC2
DTMFO L_RMUTE R_RMUTE
R_MODMUTEL_MODMUTE
IC103
FIL
SW
DTCS_SEL
DTMF
DTMUTE
Q153
Q149
D123/D124
D101
MICE
GND
D307/D309
D319/D321/D322
CONV
Q104
Q3-Q6
SW3C
SW
SW3C
8V MIC8V
Q7/Q8
BTMICSW CMICMUTE MIC1 MIC2 MICMUTE
Q100/Q150
LEVEL
CONV
LEVEL
REG
3.3V
CONNECTOR
UT-133
B to B
J3
Bluetooth UNIT
CONNECTOR
B to B
J301
BTMIC
BTAF
VRX_RPT URX_RPT
L_UVCOC
L_VVCOC
L_VCOSHIFT
R_VVCOC
R_UVCOC
R_VCOSHIFT
R_MODMUTE
L_AMC
L_PLLSW
L_MODMUTE
L_WN_SEL
L_UR5C
L_VR5C
L_R5C
L_400S
IC315 IC316
R_PLLSW
R_WN_SEL
R_AMC
IC317
R_VR5C
R_UR5C
R_R5C
R_400S
CLOCK
SHIFT
D304
CONV
LEVEL
& OVER
VOLTAGE
PROTECT
REVERSE
D324