Icom IC-7410 Service Manual page 90

• CONNECT UNIT (CONNECT-1)
CIV
CIVE
CISEL
UDTXD
UDRXD
5V
-12V
UPWS
VBUSK
CONNECT-2
8
V+ I C502
GND
NJM4558M
4
R501
C501
MDRAF
10 2.2K
LM2904PWR
2 I C251
R505 R504
1
R507
3
820k 15k
UMSQS
1.5K
R508 R506 D501
10K 3.9k KDS4148U
UMOD
5V
R702
100
166.7ns
0.5Vp-p
R904
1.5K
R905
VBUS 1M
X901
CR-890
1
EP753 DP0
USB- 2
DM0
3
J751 VCC
MMZ1608B301CT
4
R906
RESET
5
EECLK
USB 100K
6
R901
EEDATA/GANGED
7
GND
1.5K 8
EP754 BUSPWR
USB+ D901
MMZ1608B301CT
KDS122
D902
KDS122
C504
150P
R512
68K
Q501 2
I C521
R513
2SJ144 1 1 8
R510 COM VCC
3
2 7
1.2K
INH CH0
3 6
10K I C502 VEE CH1
4 5
NJM4558M GND A
KIC7W53FK
6
7
5
I C502
NJM4558M
I C701
1 5
VIN VOUT
2
GND
3 4
CTRL NC
NJU7772F33
I C902
24
DP4
23
DM4
22
OVRCUR4
21
PWRON4
20
DP3
19
DM3
18
OVRCUR3
17
PWRON3
TUSB2046BIVFR
C909
C912
22P 22P
R907 R915
15K 15K
C910 C915
22P 22P
R908 R916
15K 15K
I C571
R571
1 5
A VCC
2
Q651 B 100
3 4
KRC402 GND Y
SN74AHC1G32DCK
R681
EP551
MMZ1608Y102B T
1.5K
I C551
1 28
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
10 19
VCCC VCCP2
11 18
AGNDC AGNDP
12 17
C543 1
VINL VCCP1
C544 1 13 16
VINR VOUTL
14 15
VCOM VOUTR
PCM2901 E
Q521
KRC402
C615
MMZ1608B301CT-AS
10P
R612
R617
18K
Q611
DMG50401 0
R618
0
D621
RB751V
IC621
1 14
2 13
3 12
4 11
5 10
6 9
78
TC74HC08AF
8 28
VBUS DTR
9 27 R921
Q 901 RST DSR
10 26 0
KRC402 NC TXD
11 25
SUSPEND RXD
12 24
SUSPEND RTS
13 23
NC CTS
14 22
NC NC
R561 83.3ns
1M
X551
CR-870 0.23Vp-p
10 - 4
EP611
J611
REMOTE
0
I C611
4 5
3 6
2 7
1 8
KIC7W14FK
RB751V
D622