Icom IC-9100 Service Manual page 138

• CONNECT UNIT (CONNECT-3)
CONNECT-1
UDRXD
UDRXD
UDTXD
UDTXD
5V
5V
UPWS UPWS
UPWS
-12V
-12V
BUS-POWERED 3.25
Not connected
0.00
UMSQS
UMSQS
BUS-POWERED 4.95
USSQS
USSQS
MDRAF
MDRAF Not connected
0.00
SDRAF
SDRAF
CIV
CIV
CIVE
CIVE
UMOD
UMOD R750
VBUSK
VBUSK
1K
USB+
J751
[USB]
USB-
CONNECT-2
UDRES
STLS_5V
STLS_5V
I C502
8 8
NJM4558M
V+ V+
GND GND
R517
4 4
560
I C501
Q501
LM2904PWR
R501 2SJ144 R510
C501
10 2.2K 10K
I C501
LM2904PWR
2
R505 R504
1
R507
3
820k 15k
1.5K
R508 R506 D501
10K 3.9k KDS4148U
Q521
2SJ144
C521 R521 R530
10 2.2K 10K
I C501
LM2904PWR
6
R525 R524
7
R527
5
820k 15k
1.5K
R528 R526 D521
10K 3.9k KDS4148U
R703
3.3V
R702
10 100
R904
1.5K
R905
VBUS 1M
X901
CR-890
I C902
1 24
DP0 DP4
2 23
DM0 DM4
3 22
VCC OVRCUR4
R906 4 21
RESET PWRON4 R910
5 20
100K
EECLK DP3
6 19
R901 EEDATA/GANGED DM3
7 18 27
GND O VRCUR3
8 17
1.5K BUSPWR PWRON3
TUSB2046BIVFR
C909 C912
22P 22P
R907 R915
15K 15K
C910 C915
22P 22P
R908 R916
15K 15K
-12V
STLS_5V
5V
3.3V
R544
C504
150P
10K
R512
68K IC541
2
16 1
R513
VDD Y1
1 15 2 C544
1 SVA
Y Y0
3 14 3 C543
1 SVA
1.2K X Z1
13 4
I C502
X1 Z
NJM4558M 12 5
X0 Z0
11 6
A IN H
10 7
B VEE
9 8
C VSS
CD4053B
Q541
C524
KRC402
150P
R532
68K
6
R533
7
5
1.2K
J611
I C502
[REMOTE]
NJM4558M
BUS-POWERED 0.00
• BUS-POWERED
Not connected
USB audio SQL OPEN: 0.00 4.94
USB audio SQL CLOSE: 3.50
• USB not connected
USB audio SQL OPEN: 3.52
USB audio SQL CLOSE: 3.50
10 - 5
3.3V
BUS-POWERED 3.27
Not connected IC811
0.00
R813
1 5
VIN VOUT
2
R811 GND
10
3 4
CTRL NC
166ns
100
NJU7772F33
2.40Vp-p
R920
27
VBUS VBUS
R1
3.3V
100
I C571
C571
5 1 8
VBUS
2 9
R681 0.1
RST
4 3 10
NC
11
1.5K Q901 SUSPEND
12
SN74AHC1G08DCK3
KRC402 SUSPEND
13
EP551 NC
14
NC
IC551
MMZ1608Y102B T
28
1
D+ SSPND
2 27
D- VDD
3 26
VBUS DGND
4 25
DGNDU TEST1
5 24
HID0 TEST0
6 23
HID1 VCCX
7 22
HID2 AGNDX
8 21
SEL0 XTI
9 20
SEL1 XTO R561
10 19
VCCC VCCP2
11 18
AGNDC AGNDP 1M
12 17
VINL VCCP1
13 16
X551
VINR VOUTL
14 15 CR-870 83ns
VCOM VOUTR
PCM2901E
2.24Vp-p
R617
18K
EP611
CIV
R612
MMZ1608Y102B T
CIVE
Q 611
XP4601
C615
0
10P I C611
4
R618
R611 3
12K 2
0
1
UDRE S
U D RXD
UDTXD
3.3V
BUS-POWERED 3.26
Not connected
0.00
Q902
KRC402
Q903
KRC402
R832
10K
VBUS
R925
28 8 28
DTR VBUS DTR
27 9 27
DSR RST DSR
0
26 10 26
TXD NC TXD
25 11 25
RXD SUSPEND RXD
24 12 24
RTS SUSPEND RTS
23 13 23
CTS NC CTS
22 14 22
NC NC NC
5
6
7
8
TC7W04F