Icom IC-2730A Service Manual page 48

• MAIN UNIT (3/8)
VCC2
VCC
8VS
5VS
3.30V
3VS
R307
1k
R308
J100
1
8V 1k
EP101 MMZ1005Y102CT
2
MICU/D
EP102 MMZ1005Y102CT
3
EXTMIC R322
EP103 MMZ1005Y102CT
PTT 4
EP104 MMZ1005Y102CT
MICE 5 2.2k
EP105 MMZ1005Y102CT
MIC 6
EP106 MMZ1005Y102CT
GND 7
EP107 MMZ1005Y102CT
MICIN 8
Q102
2SC4738
R_R5C R_R5C
R_DTCSIN R_DTCSIN
R_WXALT R_WXALT
R_RSSI R_RSSI
R_SQL R_SQL
3VS
L_R5C L_R5C
L_DTCSIN L_DTCSIN
L_WXALT L_WXALT
L_RSSI L_RSSI
L_SQL L_SQL
VOL_DATA VOL_DATA
VOL_CK VOL_CK
CLONE CLONE
DTMF DTMF
VRX_RPT VRX_RPT
URX_RPT URX_RPT
R_AMC R_AMC
L_AMC L_AMC
R_WN_SEL R_WN_SEL
L_WN_SEL L_WN_SEL
DTMUTE DTMUTE
L_REF
L_REF
R_REF
R_REF
R317
330k
MICMUTE MICMUTE
AF_RSW AF_RSW
DTCS DTCS
DTCS_SEL DTCS_SEL
L_AFMUTE L_AFMUTE
R_AFMUTE R_AFMUTE
98_DATA 98_DATA
MIC_PTT
MICSEL MICSEL
MICUD MICUD
BTAF BTAF
AF_SW AF_SW
L_RMUTE L_RMUTE
R_RMUTE R_RMUTE
VOX
VOX
MIC1
MIC1
MIC2
MIC2
R348
2.2k
C525 R335 R343
DA_STB2 1 15k 220k
DA_STB2
DA_DATA
DA_DATA
DA_CK
DA_CK
R477
10k
R344
C559
2.2k 1
コントローラ側MIC
R321
BTMIC
2.2k
BTMICSW
13.6V
CLONE
13.6V
MICUD
R359
C557
4
0 470
MMZ1005Y102CT
MICSEL
0
EP113
R360
IC105
LA4425A
MIC_PTT
5
1
R362
J101 C554
4
2
0
470
3
EP111
MPZ1608S221A
SP1
1 1
2
2
J103
98_DATA
RUM002N02
PCON_V
PCON_U
DA_DATA
DA_CK
DA_STB2
IC102
C533
0.1
R615
1 18
VIN2 VIN7
2 17 1
VDD GND 15k
3 16 2
LD RESET
4 15 3
CLK VDAREF2
5 14 4
DI VDAREF1
6 13 5
VIN3 VIN6
6
R455
7
150k
R2A20178 R453
47k
R616
100
IC100
1 14
I/O1 VDD
2 13
O/I1 CONT1
3 12
O/I2 CONT4
4 11 R609
I/O2 I/O4
5 10
CONT2 O/I4
6 9 150k
CONT3 O/I3
7 8
VSS I/O3
TC74VHC4066AFK
C536
1
C862
R325
0.047
33k
C526 C876
0.018 1
Q150
LDTC144EE
LDTC144EE
Q100
100k
R427
4.7k
R428
R382 R385
100k 100k
5 C593
1
C566
4
0.1 C602
3
1
IC107
10
2
C607
LMV321IDCK
10
IC106
LA4425A
C604
5 C572 C590
1
0.1
0.22 0.1
2 C603
3
0.1
R383
Q106
RUM002N02
22k
C564 C588
R439
0.22 0.1
0.1
C614
R620
R381
Q105
100
RUM002N02
22k
5.79V
R405
IC108
SN74AHC1G08DCK3
22k 4.7k
Q104
4 3
R379
2 Q153
5 1 2SC4738
1.46V
2.06V
R401
22k
R611
150k
IC109
IC103
1 14
14 I/O1 VDD
2 13
13 O/I1 CONT1
3 12
12 O/I2 CONT4
4 11
11 I/O2 I/O4
5 10
10 CONT2 O/I4
6 9
9 CONT3 O/I3
7 8
8 VSS I/O3
TC74VHC4066AFK
NJU7058V
R417
R390 0 0
R456
33k
R454
CTCSS/DTCS
R614 R610
27k
150k 39k
IC112
1 14
R613
2 13
3 12
R632
2.2k
4 11
5 10
39k
6 9
7 8
NJU7058V
Q149
D123
R304
150k
L1SS400 LDTC144EE
5.00V
R431
Pin 1:4.02V
3.9k
Pin 2:0.42V
Pin 3:1.03V
Pin 4:4.26V
C637 C643
Pin 5:4.41V
Pin 6:7.76V
0.0039 0.0018
Q112
DMC506010R
C658 R463
4 3
0.01 22k
5 2
6 1
C634
1
LDTC114YE
R432
Pin 1:4.02V
3.9k
Pin 2:0.42V
0
Pin 3:1.03V
Pin 4:4.26V
C638 C644
Pin 5:4.41V
Pin 6:7.74V
0.0039 0.0018
Q113
DMC506010R
R458 R464
C659
4 3
0.01 39k 22k
5 2
6 1
C635
1
LDTC114YE
100k 0.0033
R409 C615
3.30V
VRX_RPT
IC104
1 14
I/O1 VDD
2 13
O/I1 CONT1
3 12
AF_RSW AF_RSW
O/I2 CONT4
4 11
I/O2 I/O4
DTMUTE 5 10
CONT2 O/I4
URX_RPT 6 9
CONT3 O/I3
7 8
VSS I/O3
AF_SW TC74VHC4066AFK
*: Refer to the PARTS LIST for the value and name of component.
10-4
R465
12k
Q139
R_AMC
3.30V
R466
12k
Q140
L_AMC