Icom VHF IC-F50, Service Manual Addendum

Page: 9 / 57

Feb. 2008
8
VOLTAGE DIAGRAM
*; Refer to “PARTS LIST.”
100K
R472
0.015
C441
XP4312
Q411
1
2
3 4
5
6
R509
100K
BU4094BCFV
IC410
1 STR
2 D
3 CLK
4 Q1
5 Q2
6 Q3
7 Q4
8 GND 9
QS
10
Q’S
11
Q8
12
Q7
13
Q6
14
Q5
15
OE
16
V+
O PC-1210A
W401
NJM12902V
IC403
2
3
1
10K
R465
100K R410
1 C474
22K
R474
SML-A12M T
DS405
56K
R432
0.001 C424
KEY
S406
D TC144EU
Q406
NJM12904V
IC407
6
5
7
100
R445
12K R493
RSR025N03
Q405
56K
R462
330K
R407
0.1
C409
0.001 C487
0.001
C402
0.0033
C449
2.7K
R43
9
0.001 C481
DTA144EU
Q412
24LC64T
IC409
1 A0
2 A1
3 A2
4 VSS 5
SDA
6
SCL
7
WP
8
VCC
100P
C407
47K
R473
47P C465
MA2S111
D403
0.1
C421
0.
1
C442
0
R514
33
C435
10K
R475
470P
C425
100K
R482
MA2S111 D402
0.001 C426
47P C466
0.001 C490
12K
R495
ERDS2T0
W402
470
R434
22K
R463
56K
R511
0.1
C410
NJM12904V
IC407
V+
8
GND
4 0.001 C488
NJM12902V
IC403
6
5
7
D TA144EU
Q40 7
0.001 C403
470
R455
SML-310M T
DS402
12P C416
47P C450
470K
R442
0.001 C482
27K R413
100K
R485
33K
R402
MA8062
D405
100K
R412
0.001
C446
100K R433
0.001 C475
10K
R490
47P C461
0.
1
C500
15K
R405
68K
R476
100K
R421
820P C443
10 MSVA
C434
1M
R492
0.001 C429
C R-764
X401
47P
C467
470
R457
XP4111
Q40 9
1
2
3 4
5
6
33
C496
0.001
C491
TC7W66FK
IC406
1 2 3 4
5 6 7 8
47K
R466
5.6K
R513
0.001 C495
0.1
C411
0.001 C489 0.001 C404
KEY
S407
470K
R443
27K R414
6P C417
SML-310M T
DS403
100K
R484
0.001 C483
NJM12902V
IC403
9
10
8
150K R415
MA2S111
D406
0.0022
C447
10K
R489
0.001 C476
1k
R403
47P C462
100K
R422
47K
R470
SKHLLFA010
S401
XP6501
Q40 2
1 2 3
4 5 6
68K
R477
PRG21BC4R7MM1RA
R515
0.
1
C431
10
R491
10 MSVB2
C427
0.
1
C444
0.001 C430
47P C468
0.0027
C406
0.001 C492
47K
R467
NJM12902V
IC403
V+
4
GND
11
0.056
C497
KEY
S402
100K
R444
33
R435
100K
R500
100
R456
100K
R483
47P C433
100K R408
0.001 C484
15P
C414
HR
YG
CL-165HR
DS406
150K R416
SM04B-SRSS-TB
J402
1
2
3
4
5
6
100K
R488
0.001
C494
47p C477
120P
C448
1k
R404
NJM12902V
IC403
13
12
14
100K
R423
RSR025N03
Q413
68K
R478
VCC
VCC
100K R440
HD6432264F02TFV
IC401
1 SEG31
2 SEG30
3 SEG29
4 SEG28
5 SEG27
6 SEG26
7 SEG25
8 PL7/SEG24
9 PL6/SEG23
10 PL5/SEG22
11 PL4/SEG21
12 CVCC
13 PL3/SEG20
14 VSS
15 PL2/SEG19
16 PL1/SEG18
17 PL0/SEG17
18 PK7/SEG16
19 PK6/SEG15
20 PK5/SEG14
21 PK4/SEG13
22 PK3/SEG12
23 PK2/SEG11
24 PK1/SEG10
25 PK0/SEG9
26
PJ7/WKP7/SEG8
27
PJ6/WKP6/SEG7
28
PJ5/WKP5/SEG6
29
PJ4/WKP4/SEG5
30
PJ3/WKP3/SEG4
31
PJ2/WKP2/SEG3
32
PJ1/WKP1/SEG2
33
PJ0/WKP0/SEG1
34
P1
0
35
P1
1
36
P12/TCLKA
37
P13/TCLKB
38
P14/TIOCA1/IRQ0
39
P15/TIOCB1/TCLKC
40
P16/TIOCA2/IRQ1
41
P17/TIOCB
2
42
AVSS
43
P97/AN9
44
P96/AN8
45
P47/AN7
46
P46/AN6
47
P45/AN5
48
P44/AN4
49
P43/AN3
50
P42/AN2
51
P41/AN1
52
P40/AN0
53
VREF
54
AVCC
55
PH7
56
MD1
57
OSC2
58
OSC1
59
RES
60
NMI
61
STBY
62
VCC
63
XTAL
64
VSS
65
ESTAL
66
FWE
67
MD2
68
P77/TXD2
69
P46/RXD2
70
P75/SCK2
71
P74
72
P73/TMO1
73
P72/TMO0
74
P71
75
P70/TMRI01/TMCI0 1
76
P30/TXD0
77
P31/RXD0
78
P32/SCK0/IRQ
4
79
P33/TSC1
80
P34/RXD1/SDA0
81
P35/SCK1/SCL
0
82
PF3/ADTRG/IRQ
3
83
PH5
84
PH4
85
V3
86
V2
87
V1
88
PH3/COM4
89
PH2/COM3
90
PH1/COM2
91
PH0/COM1
92
SEG40
93
SEG39
94
SEG38
95
SEG37
96
SEG36
97
SEG35
98
SEG34
99
SEG33
100
SEG32
100K R501
1k
R458
KEY
S403
27K
R420
0.001
C445
0.001 C432
47K
R468
AMB-622-462C33
MC401
00K
502
8.2K
R406
100P
C498
10K
R496
0.
1
C428
M A2S077
D 404
330K
R426
10 R436
10 MSVA
C419
0.1
C413
100K R409
470K R417
0.001 C485
0.047 C436
100K
R487
47P C499
0.01 C415
0.1
C412
47p C478
KEY
S 404
68K
R479
DTC144EU
Q40 8
470P C501
0.1
C493
68K
R441
2.2K R508
2SC4116
Q403
100K
R411
47K
R427
4.7K R429
NJM12904V
IC407
2
3
1
54104-3692
J401 1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
47P C463
220K
R471
4.7K
R469
0.1
C423
0.0022
C405
10K R497
SML-A12M T
DS404
RSR025N03
Q404
3.3K R506
22K
R464
39K
R430
10K R401
1k R437
0.001 C401
1
C437
12K R494
180K
R461
1k
R486
KEY
S405
0.1
C408
470K R418
0.001 C486
100K R512
BD5242G
IC408
1 OUT
2 VDD
3 VSS 4
NC
5
CD
68K
R480
2SB1132
Q401
0.001 C479
3.3K
R438
SP401
036D0801B
27K R507
47K
R428
0.
1
C420
TA7368FG
IC405
1
NC
2
VCC 3
NC
4
VIN 5
RIPPLE
6 NF
7 PHASE
8 PREGND
9 PWGND
10 POUT
47P C464
MA2S111
D401
0.
1
C418
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
SEG10
SEG11
SEG12
SEG13
SEG14
SEG15
SEG16
SEG17
SEG18
SEG19
SEG20
SEG21
SEG22
SEG23
SEG24 SEG25 SEG26 SEG27 SEG28 SEG29 SEG30 SEG31 SEG32 COM1 COM2 COM3 COM4
TEM P
SENC2
DAST
RSSI LVIN BATV CDEC SDEC EXOE EXSM EXSF SCAT
SENC3
SENC1
SENC0
CENC2 CENC1 CENC0
CENC0
CENC1
CENC2
SENC0
SENC1
SENC2
SENC3
RES
OPT V
UNLK
MD
BEEP
LEDT
LEDR
LIGT
SCK SO EXOE
CLI
CLO
MD
SPON
SPON NOIS PTT MCON
MCON
CSFT
C SFT
DUS
E
PTT
CLO
CL
I
MDIR
MSCK SCK SO PLST SCST MDI
O
MTCK MTDT EXSF
MSCK
MDIO
SCK
SO
GND
GND
GND
EXOE
PLST
MTCK
EXSM
SCAT
MTDT
SCST
DAST
MDIR
SEG2 SEG9 SEG10 SEG11 SEG12 SEG13 SEG14
COM1
SEG15 SEG16 SEG8 SEG7 SEG1 SEG6 SEG5 SEG4 SEG3
SEG22 SEG25 SEG26 SEG27 SEG28 SEG29 SEG30 SEG31 SEG24 SEG32 SEG23
CO
M3
CO
M4
SEG18 SEG17 SEG19 SEG20 SEG21
COM2
AFOUT
PWON
PWON
CSFT
UNLK
TEM P
R SSI
LVIN
CDEC
SDEC
NOIS
CDCS
CDCS
KR1
KR1
KR0
CPU5
CPU5
CPU5
CPU5
CPU5
OPT V
MIC
MIC
S5V
S5V
AFON
SIGNAL
SIGNAL
SIGNAL
TONE
TONE
TONE
RES
VCC
VCC
VCC
MRDF
MRDF
P0 P1
P2 P3
UP DN
VCC
AFO
OPT V
GND
RES
CL I
CLO
MIC
PTT
1k
R701
EP701
EP702
MMZ1608Y102BT x3
EP703
MMZ1608Y102BT
EP704
MMZ1608Y102BT
EP705
AF O
VCC
To LCD
OPT V
RES
CLI
CLO
MIC
PTT
AVR-M1005C080M T
D701 AVR-M1005C080M T D702
AVR-M1005C080MT
D703
AVR-M1005C080MT
D704
AVR-M1005C080M T
D705
0.001 C701 0.001 C702 0.001 C703
0.001
C704
MP701
1
2
3
4
5
6
7
8
9
GND
AF O
PTT
MI C
TXD
RXD
RESET
OPT V
MICE
VCC
TP76N97N
R601
OPC-1260
W601
1
2
3
4
100K
R446
CONNECT UNIT
VR UNIT
FRONT UNIT