Icom IC-F50 Service Manual Addendum page 54

11-2 FRONT UNIT
VCC
AFO
OPTV
GND
R514
From / to OPTV
ERJ2GE–JPW
RES RES
the optional
CLI CLI
microphone
CLO CLO
cloning
cable
MIC
PTT
0.5
4.9
D401
R403
MA2S111
1 k
Q412 Q412
DTA144EU DTA144EU
S5V
C497
MC401
0.01
POWER OFF
7.0
0
C425
POWER ON 470 P
AFO
R432
J402
56 k
SM04BSRSS–TB
R430 C423
R434 C437 39 k 0.1
PWON 13
From / to 14
1
470 1
the W601 2
AFOUT 12
3
at the
4 IC403
VR UNIT
NJM12902V
R446
AF Min Level ON
100 k
0
4.9
AF Min Level OFF
C496 33
IC405
W401
TA7368F
ERDS2TO C435 33
AFO
10
POUT
9
PWGND
8
W402 PREGND
R442
SP401 7
ERDS2TO 470 k
PHASE
6
NF
R443
470 k
R444
100 k
Q406
DTC144EU
PWON
VCC
CPU5
OPTV
RES
CLI
CLO
Backlight ON
4.8
0
Backlight OFF
R455
100
MIC
MD
DS402 DS403
SML–310MT SML–310MT
R456
100
Q409
DS404 DS405
SML–A12MT SML–A12MT XP4111
4 3
R457
YG
470
5 2
6 1
HR
R458
DS406
1 k
CL–165HR/YG
TX
TX
0 4.9
PTT
4.9 0
BUSY
BUSY
CPU5 CPU5
MCON
D403
MA2S111
S5V
S5V
8 4
IC407 IC403
MIC
V+ V+
NJM12904V NJM12902V
GND GND
4 11
C498
100 P C407 100 P
MIC
C406 R406
R511
0.0027 8.2 k
270 k R407
330 k
R513
5.6 k C405 R405
2
0.0022 15 k
1 6
3 7
5
IC407
NJM12904V IC407
NJM12904V
R426
330 k
R427
47 k
C421
R428
47 k 0.1
DUSE
AFOUT
AFON ON
7.2
0
AFON OFF Q401
1
NC 2SB1132Q
2
VCC
3
NC
4
VIN
5
RIPPLE
D406 R441
MA2S111 68 k
SPON
S5V
PWON
VCC
11 - 2
C408 C409
0.1 0.1
CPU5
R420 R421
27 k 100 k
SEG23
SEG22
SEG21
SEG20
SEG19
SEG18
SEG17
SEG16
SEG15
SEG14
SEG13
CPU5
C493 0.1
SEG12
SEG11
SEG10
SEG9
SEG8
IC410
SEG7
BU4094BCFV
SEG6
R482
SEG5
100 k
1 16 CPU5
STR V+ SEG4
2 15
D OE SEG3
3 14
CLK Q5 SEG2
LEDR 4 13
Q1 Q6 SEG1
LEDT 5 12
Q2 Q7
LIGT 6 11
Q3 Q8
AFON 7 10
Q4 Q'S
8 9
GND QS
IC409
24LC64T–I/SN
1 8
A0 VCC
2 7
A1 WP
3 6
A2 SCL
4 5
VSS SDA
CPU5 CPU5
MIC
DUSE
TX DTCS ON
4.9
0
TX DTCS OFF
BEEP
TONE
SIGNAL
NOTES :
Voltage line
TX line
RX line
SPON
S5V S5V
PWON
VCC
R488 100 k
C410 C411
0.1 0.1
R489 100 k
R422 R423 R490 100 k
100 k 100 k
1
PM6/SEG31 P70/TMRI01/TMCI01
2
PM5/SEG30 P71/TMRI23/TMCI23
3
PM4/SEG29 P72/TM00
4
PM3/SEG28 P73/TM01
5
PM2/SEG27 P74/TM02
6
PM1/SEG26 P75/TM03/SCK2
7
PM0/SEG25 P76/RXD2
8
PL7/SEG24 P77/TXD2
9
PL6/SEG23 MD2
10
PL5/SEG22 FWE
11
PL4/SEG21 EXTAL
12
CVCC IC401
13
PL3/SEG20
XTAL
14 HD6432264F01TF
VSS VCC
15
PL2/SEG19 STBY
16
PL1/SEG18
17
PL0/SEG17 RES
18
PK7/SEG16 OSC1
19
PK6/SEG15 OSC2
20
PK5/SEG14 MD1
21
PK4/SEG13 PH7/TONED/TMCI4
22
PK3/SEG12 AVCC
23
PK2/SEG11 VREF
24
PK1/SEG10 P40/AN0
25
PK0/SEG9 P40/AN1
BEEP
R484
R486 100 k
1 k
R483
100 k
R485
100 k
S5V
R464
22 k
IC403
NJM12902V
R469
2
4.7 k R468 R467 R466
CDCS 1
47 k 47 k 47 k
3
Q408
DTC144EU
TONE
IC403 IC403
NJM12902V R480 NJM12902V R477
68 k 68 k
10 5
8 7
BEEP R479 R478
9 6
68 k 68 k
TONE
TONE
CDCS
SIGNAL MIC
SIGNAL
5.0
CPU5
Beat Cancel OFF
19.6618MHz
2.7Vp–p
75 SENC0
C413
74 SENC1
0.1
73 SENC2
72 SENC3
71 MDIR
C412
70
0.1
CPU5
69
R495
68
R487
12 k
67 CPU5
100 k
66
C414
65
64
X401
R491 10
VSS 15 P
63
62
IC408
61 RES
R492
BD5242G
60
1 M
NMI
59 1 5
OUT CD
58 CPU5 2
VDD
57 3 4
VSS NC
56
55 UNLK
54
53
52 OPTV
Q411 XP4312
51 TEMP
CPU5 4 3
5 2
CPU5 6 1
MD MD
CSFT
CSFT
CPU5
KR0 KR0 KR0
KR1 KR1
CPU5
KR1
R412
100 k
S407 S402 S403 S404
P0 P1 P2 P3
R461 KR1
180 k
CENC0
R462
56 k
CENC1
UP DN
S406 S405
R463
22 k
CENC2
R471
220 k
SENC0
R472
100 k SENC1
R473
47 k SENC2
R476
R474
68 k
22 k SENC3
TONE
CDCS
MIC
SIGNAL
MIC
36
GND
35
TONE
34
CDCS
33
SIGNAL
32
SO SO
31
SCK SCK
30
MDIO MDIO
29
MSCK MSCK
28
SCST SCST
27
PLST PLST
26
SCAT SCAT
25
EXSM EXSM
24
EXOE EXOE
23
MTDT MTDT
22
MTCK MTCK
J401
21
NOIS NOIS
54104–3692
20
SDEC SDEC
19 From / to the
CDEC CDEC
18
MAIN unit J1
KR1
17
LVIN LVIN
16
RSSI RSSI
15
TEMP TEMP
14
UNLK UNLK
13
MDIR MDIR
12
MRDF MRDF
11
DAST DAST
10
CSFT CSFT
9
PWON
8
GND
7
GND
6
S5V S5V
5
CPU5 CPU5
4
PWON
3
VCC VCC VCC
2
VCC VCC
1
BATV