Icom IC-F4160 Service Manual page 131

Aug. 2008
SECTION 12 VOLTAGE DIAGRAM
FRONT UNIT (For F4060 series)
J501
I MSA-9631S-20A-TB
20
MDET
19
VCC
18
17
+5V
16
15
CLO
14
RES +5V
13
FSCL
12
FSDA
11
PTTSW
10
PTTI I C505
9
KR 1 16
8 SO CS0
CLI FSCL 2 15
7 SCL CS1
AFONO FSDA 3 14
6 SDA CS2
LRES AFON 4 13
5 D0 VDD
CP508 EPTT LIGH 5 12
4 D1 D7
CF20 AF SPCON 6 11
3 D2 D6
MCIN MCON 7 10
2 D3 D5
8 9
1 GND D4
M62320FP
I C506
1 16
SO CS0
FSCL 2 15
SCL CS1
FSDA 3 14
SDA CS2
KS0 4 13
D0 VDD
KS1 5 12
D1 D7
KS2 6 11
D2 D6
KS3 7 10
D3 D5
8 9
GND D4
M62320FP
+5V
S501 S502 S503
12 3
KEY KEY KEY
R522
100K
S505 S506 S507
4 5 6
KEY KEY KEY
R523
100K
S509 S510 S511
89
7
KEY KEY KEY
R524
100K
S513 S514 S515
* 0 #
KEY KEY KEY
R525
100K
I MSA-9631S-08A-TB
J502
9 10
22
R534
FSCL
FSDA
LRES
R533
22
+5V
R554
100K
I C501
Simple 1 5
GND NC
Multh 2
VIN
Select 3 4
VOUT NC
S-812C30AMC
S504
P0
KEY
KS3 KS3
2SB1132
Q501
VCC
S508
P1
KEY
KS2 KS2
D508
AFON
R555
AFONO
10K
S512
DAN202U
P2
KEY
Q512
UNR9213J
R558
KS1 KS1 SPCON
4.7K
R544
+5V
100
R566
AF
S516
0
P3
KEY VCC
KS0
Q507
D505 UNR9213J
LIGH
KR
Q508
D TA114EU
DAP222
R547
390
D506
Q509
R546
DTB123EK
390
DAP222
R530
390
19
D503 R518
R517 D502
MA2S728 0
0 MA2S728
EPTT
PTTI
Q514
UNR9113J
+5V
UMG2N
PTTSW 1 5
2
UNR9113J
3 4
Q506
MA2S111
MCON
D504
R567
PTTI
Q516
UNR9213J
100K
C542
220P
R552
100K
6
M CIN 7 MC501
R515
C522
5
I C509
100K 0.1
NJM12904R
R516
C523
100K 0.1
R563
20
10K VCC1
I C509
19
NJM12904R R510 NC
18
R508 OUT1-
17
82K
IN1-
8 16
10K I N1+
V+ 15
R509
I N2+
GND R511
14
IN2-
4 13
10K OUT2-
12
100K NC
11
R564 VCC2
10K
I C509
R543
R559
3
15K R540
1
4.7K
2
15K
NJM12904R
C540 390P
R541
100K
SKB-2746
R557
EPTT PRG21BC4R7MM1RA
EMIC
CLO R535
47
VCC
M DET 1k R538
CP507
R539
+5V CF20
10K
R537
RES 1k
CL I 47 R536
Q 513
UNR9213J
23/04/020/W02/W02
SP1
W501
I C508
1
GND1
2
NC W502
3
OUT1+
4
M ODE 23/00/025/W02/W02
5
SVRR
6
SELECT
7
NC
8
OUT2+
9
NC
10
GND2
TDA8547TS
1k
R560
R506
33 MSVB2
4.7K C501
C502
33 MSVB2
*; Refer to "PARTS LIST."
J503
1
2
3
4
5
6
7
8
9
10
I MSA-9631S-10A-TB
OG-503040
MP505