Icom IC-7100 Service Manual Addendum page 33

(Amended page)
November 2018
• MAIN unit (2/10)
TO MAIN-3
3R3V
H3R3V
TO MAIN-10
USQLS
USQLS
TO MAIN-9
UDRES
UDRES
UPWS
UPWS
UDRXD
UDRXD
UDTXD
UDTXD
USSENI
USSENI
USKI
USKI
VBUS_
VBUS_
CIV
CIV
CIVE
CIVE
CP501
USB+
EP501
SHORT1005
MMZ1005B601C
5
4
[USB]
3
2
1
J501
CP502
USB-
SHORT1005
R502
VBUS
1k
Explanatory notes
TX Line
RX Line
Voltage Line (HV)
Voltage Line (VCC)
Voltage Line (14V)
Voltage Line (8V)
Voltage Line (5V)
EP571
J571
MMZ1005B601C
[REMOTE]
CP571
SHORT1005
C804 0.001
C805 0.001
Q512
EP511
RZR040P01
MPZ1608S601A VBUS3.3V
EP512
MPZ1608S601A
R513
1.5k
X511
CR-890
Q511
LDTC114EE
UPWS
R521
R522 27
27
R515
100k
R516
1.5k
D521
LRB706F
VBUS_
VBUS_
D522
LRB706F
VBUS3.3V
EP541
MMZ1005B601C
C542
0.1
Q541
LDTC114EE
8
VBUS
9
RST
10
NC
11 IC541
SUSPEND
CP2102GMR
12
SUSPEND
13
NC
14
NC
IC561
TC7WH14FK
R550
USSENI 7 1
22
R551
USKI
22
R563 R564
CIV
CIVE
18k
10k
Q561
CIV L2SA1576AR
CIVE 6 2
C573
R566
10P
Q562 IC561
L2SC4081 TC7WH14FK
12k
CP561
5
SHORT1005
IC561
TC7WH14FK
3R3V
1 24
DP4
DP0
2 23
DM4
DM0
3 22
OVRCUR4
VCC
4 21
PWRON4 R531
RESET IC511
5 20 R533
TUSB2046BIVFR DP3
EECLK
6 19
DM3
EEDATA/GANGED
7 18 27
OVRCUR3
GND
8 17 27
PWRON3
BUSPWR
C523 C525
22P 22P
R523 R529
15k
15k
C524 C526
22P
22P
R524 R530
15k
15k
28
DTR
27
DSR
26
R545
TXD
25
R546 22
RXD
24 22
RTS
23
CTS
22
NC
IC603
TC7S66FU
3
2
1
R609
R610
8
V+
IC561
TC7WH14FK
GND
4
3
26
Q592
LDTC114EE
8 28
VBUS DTR
9 27
Q591
RST DSR
LDTC114EE 10 26 R595
NC TXD
IC591
11 25 R596
SUSPEND CP2102GMR RXD
12 24
SUSPEND RTS
13 23
NC CTS
14 22
NC NC
Q601
LDTC114EE
CP601
SHORT1005
C602
5 VCC 1
A
2
R601 0.1 B
4 Y 3
GND
1.5k
IC601
SN74AHC1G32DCK
EP602
MMZ1005B601C
R603 1 28
SSPND
D+
R604 22 2 27
VDD
D-
22 3 26
DGND
VBUS
4 25
TEST1
DGNDU
EP601
5 24
HID0 TEST0 MMZ1005B601C
6 23
HID1 VCCX
7 22
HID2 IC602 AGNDX
8 21
PCM2901E
SEL0 XTI
9 20
SEL1 XTO R606
10 19
VCCC VCCP2
11 18
C603 AGNDC AGNDP 1M
10 12 17
VINL VCCP1
13 16
X601
VINR VOUTL
10 14 15 CR-870
C604 VCOM VOUTR
4
CP602
5
SHORT1005
100k
R612
100k
10k
C619
10
C620
10
UDRXD
22 UDTXD
22
D591
LRB751S
VBUS_
USQLS
TO MAIN-7
UMOD
R621
AAF
4.7K