Icom IC-F50 Service Manual Addendum page 9

Feb. 2008
VOLTAGE DIAGRAM
VCC
MMZ1608Y102BT x3
AF O O AF EP701
EP702
OPT V VCC
GND
MICE EP703
MP701
1
R701
2
1k
V OPT 3
RES
RESET 4
CLI RXD 5
CLO TXD 6
7
T AVR-M1005C080M 8
9
T AVR-M1005C080M
AVR-M1005C080M T
AVR-M1005C080M T EP704
MIC
C MI
MMZ1608Y102BT
VCC
VCC
EP705
PTT
PTT
R515
PRG21BC4R7MM1RA
MMZ1608Y102BT
VCC
AVR-M1005C080M T
AFO
OPT V
GND
CONNECT UNIT
R514
RES
0
CL I
CLO
MIC
PTT
MA2S111 R403
1k
D401
Q412
DTA144EU
MC401
AMB-622-462C33
VR UNIT
C425
470P
W601
R432
OPC-1260 J402
SM04B-SRSS-TB
56K
R601
IC403
R430
PWON 13
4 1 R434 C437
14
3 2 39K
AFOUT 12
2 3 470 1
1 4
NJM12902V
TP76N97N
Q413
RSR025N03
R446
100K
33
SP401 C496
W401
33
C435
O PC-1210A
036D0801B W402
ERDS2T0 2SC4116
R442
Q403
470K
R443
470K
R444
RSR025N03
Q404
100K
Q406
Q405
RSR025N03
D TC144EU
To LCD
OPT V
RES
CLI
CLO
SML-310M T
SML-310M T
R455
MA8062
MD
DS402 470
DS403 Q40 7
D405
SML-A12M T SML-A12M T D TA144EU
R456
100
DS404 DS405
Q40 9 XP4111
DS406
YG 4 3
R457
470
5 2
R458
1k
6 1
HR
CL-165HR
PTT
CPU5
MA2S111
MCON
D403
8 4
V+ IC407 V+ IC403
GND NJM12904V GND NJM12902V
4 11
C498 C406 R406 C407
100P 0.0027 8.2K 100P
R511
R407
56K
R513 IC407 330K
C497
2
R405
C405 IC407
1 6
0.056
5.6K
3 7
0.0022 15K
5
NJM12904V
NJM12904V
R426
330K
R427
47K
R428
C423 C421
0.1 47K 0.1
IC405
Q401
10 1
2SB1132
POUT NC
9 2
PWGND VCC
8 3
PREGND NC
7 4
PHASE VIN
6 5
NF RIPPLE
XP6501
Q40 2
TA7368FG
MA2S111 68K
D406 R441
8
CPU5
1
SEG23
SEG31
SEG22 2
SEG30
SEG21 3
SEG29
SEG20 4
SEG28
SEG19 5
SEG27
6
SEG18
SEG26
SEG17 7
SEG25
SEG16 8
PL7/SEG24
SEG15 9
PL6/SEG23
10
SEG14
PL5/SEG22
SEG13 11
PL4/SEG21
C493 12
CVC C
SEG12 13
PL3/SEG20
0.1 14
VSS
SEG11 15
PL2/SEG19
SEG10 16
PL1/SEG18
SEG9 17
PL0/SEG17
SEG8 18
PK7/SEG16
19
SEG7
PK6/SEG15
SEG6 20
PK5/SEG14
SEG5 21
PK4/SEG13
SEG4 22
PK3/SEG12
23
SEG3
PK2/SEG11
IC410 SEG2 24
R482 PK1/SEG10
1 16 SEG1 25
STR V+ PK0/SEG9
2 15
100K D OE
3 14
CLK Q5
LEDR
4 13
Q1 Q6
LEDT
5 12
Q2 Q7
LIGT 6 11
Q3 Q8
AFON 7 10
Q4 Q'S
8 9
GND QS
BU4094BCFV
IC409
1 8
A0 VCC
2 7
A1 WP
3 6
A2 SCL
4 5
VSS SDA
24LC64T
CPU5
R486
1k
R485
100K
Q40 8
DTC144EU
BEEP
TONE
SIGNAL
8
TONE
CDCS
MIC
SIGNAL
SPON
S5V
R420 R421 R422 R423
27K 100K 100K 100K
C408 C409 C410 C411
0.1 0.1 0.1 0.1
R488
100K
R489
10K
R490
10K
SENC0
75
P70/TMRI01/TMCI0 1
74 SENC1
P71
73 SENC2
P72/TMO0
72 SENC3
P73/TMO1
71 MDIR
P74
70
P75/SCK2 R487
69
P46/RXD 2
68
100K
P77/TXD2
67
MD2
66
FWE
65
ESTAL
64
IC401 VSS
63
HD6432264F02TFV
XTAL
62
VCC
61 RES
STBY
60
NMI
59 1
RES
58 2
OSC1
57
3
OSC2
56
MD1
55 UNLK
PH7
54
AVCC
53
VREF
52 OPT V
P40/AN0
51 TEM P
P41/AN1
MD
C SFT
KR0
KR1
R484
100K
R483
100K
R464 R461
CENC0
22K 180K
R462
IC403 CENC1
2
R469 56K
1
R468 R467 R466 R463
3 CENC2
4.7K
22K
47K 47K 47K
NJM12902V
R471
SENC0
220K
R472
SENC1
100K
R473
SENC2
47K
R480 R479 R478 R476 R474
R477
SENC3
10 5
68K 68K 68K 68K 68K 22K
7
9 6
IC403
IC403
NJM12902V
NJM12902V
SO
SC K
MDIO
MSCK
SCST
PLST
SCAT
EXSM
EXOE
MTDT
MTCK
NOIS
SDEC
CDEC
LVIN
R SSI
TEM P
UNLK
MDIR
MRDF
DAST
CSFT
VCC
FRONT UNIT
C 412
0.1
R495 M A2S077
C 413
12K C414 D 404 0.1
X401
15P
10
C R-764
R491
R492
IC408
5
OUT CD 1M
VDD
4
VSS NC
BD5242G
Q411
4 3
5 2
6 1
XP4312
100K
R412
S407 S402 S403 S 404
P0 P1 P2
P3
KEY KEY KEY KEY
UP S406 DN
S405
KEY KEY
MIC
36
GND
35
TONE
34
CDCS
33
SIGNAL
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
KR1
17
16
15
14
13
12
11
10
9
8
GND
7
GND
6
S5V
5
CPU5
4
PWON
3
VCC
54104-3692
2
VCC
1 J401
*; Refer to "PARTS LIST."