Icom IC-F50V Service Manual page 38

SECTION 10 VOLTAGE DIAGRAM
E P 7 0 1
AF O AF O
PRG21BC4R7MM1RA
E P 7 0 2 R515
VCC VCC VCC
AFO
E P 7 0 3
MICE
OPTV
GND
2403
MMZ1005S601CT x3 11 11
10 10
9 9
OPTV
1
R701 8 8
2 OPTV
7 7
1 k
3
6 6
4 R E S E T R E S
RES
5
5
5 RXD C LI
CLI
4 4
TXD CLO
6 CLO
3 3
7
2
2
8 AVR-M1005C080MT
1 1
9
AVR-M1005C080MT
MP701
T AVR-M1005C080M
E P 7 0 4 T AVR-M1005C080M
MIC MIC
J 1
11FH-SM1-TB MIC
1 1 F H - S M 1 - T B
MMZ1005S601CT J403 PTT
E P 7 0 5
P T T
MMZ1005S601CT
AVR-M1005C080M T
CONNECT UNIT
J402
SM04B-SRSS-TB
W601
OPC-1260
1
4
2
3
3
2
4
1
R601
TP76N97N
VR UNIT
Q413
RSR025N03
AF Min Level ON :0.00V
AF Min Level OFF:4.91V
SP401 W401
W402
OPC-1210A
036D0801B ERDS2T0
OPT V
RES
CL I
CLO
CP4
MD Light ON :4.81V
SML-310M T
Light OFF:0.00V
SML-310M T
CP10S
DS402 DS403
SML-A12M T
SML-A12M T
MA2S111 R403
PTT
DS404 DS405
1K
D401
DS406
470
YG
TX:0.57V
R457
RX:4.84V
R458
HR
1K
Q412
CL-165HR
KRA304E MA2S111
S401 MCON
D403
TX:4.98V
RX:0.00V
SKHLLFA010
POWER OFF:7.07V
POWER ON :0.00V
MC401
R541 C406 R406
10K 0.0027 8.2K
R513
EM6027P C497 C498
0.056 100P
5.6K
R511
R434 C437 C425 100K
I C407 R405
C405
2
470 1 220P
1
R432 R408 0.0022
15K
3
R512
100K 100K
13
NJM12904V 100K
14
100K
12
R426
I C403 R433
NJM12902V
1M
R535
C513 C512
1 1
68K
R537
Q415
2SC4213
10K
33 MSVB2
R427 47K
C496
33 MSVB2
R428 C421
47K 0.1
C435
AFON ON EXT SP:7.20V
AFON ON INT SP:4.51V
AFON OFF
R517
C502 R521
0.1
12K 100K
I C405
20 1
VCC1 GND1
19 2
NC NC
18 3
OUT1- OUT1 +
17 4
IN1- MODE
16 5
I N1+ SVRR
15 6
I N2+ SELECT
14 7
IN2- NC
13 8
OUT2- OUT2 +
12 9
NC NC
11 10 KRC404E
VCC2 GND2
Q414
R516
TDA8547TS
1K R523
R518
C503 R522 2.2K
R539
1 10K 150K
4.7K
AFON ON EXT SP:3.35V
Q406
AFON ON INT SP:2.13V
AFON OFF :0.00V
KRC404E
10 - 1
R420
CPU5
To LCD
SEG23
SEG22
SEG21
SEG20
R455
4
SEG19
V+ I C403 SEG18
470
Q407
GND NJM12902V SEG17
KRA304E 11
SEG16
SEG15
R456
SEG14
SEG13
TX:0.00V
100
C493
RX:4.88V
SEG12
0.1
SEG11
Q409
SEG10
SEG9
4 3 SEG8
SEG7
5 2 SEG6
SEG5
6 1
I C410 SEG4
XP4111 1 16 SEG3
STR V+
2 15 SEG2
D OE
3 14
SEG1
CLK Q5
LEDR 4 13
Q1 Q6
5 12
Q2 Q7
6 11
Q3 Q8
7 10
Q4 Q'S
8 9
R482 GND QS
CD4094BPWR
100K
I C409
1 8
A0 VCC
2 7
A1 WP
3 6
A2 SCL
4 5
VSS SDA
HN58X24256FPIE
NJM12904V
I C407
C407
8
V+
100P
GND
R407
4
330K
I C407
6
7
5
R469
NJM12904V
4.7K I C403
2
1
3
NJM12902V
Q408
BEEP
KRC404E TX DTCS ON :4.98V
TX DTCS OFF:0.00V
SIGNAL
Q401 VCC
:0.00V
R533
RSQ035P03TR
10K
KTC811U
Q40 2
68K
D406
R441
MA2S111 5
3
C506
1
0.018
2
EXT SP:4.87V
INT SP:0.00V
R421 R422 R423
100K 100K 100K
27K
R488
100K
R489
10K
R490
10K
I C401
1 75
SEG31 P70/TMRI01/TMCI01
2 74
SEG30 P71
3 73
SEG29 P72/TMO0
4 72
SEG28 P73/TMO1
5 71
SEG27 P74
6 70
SEG26 P75/SCK2
7 69
SEG25 P46/RXD 2
8 68
PL7/SEG24 P77/TXD2
9 67
PL6/SEG23 MD2
10 66
PL5/SEG22 FW E
11 65
PL4/SEG21 ESTAL
12 64
CVCC VSS
13 63
PL3/SEG20 XTAL
14 62
VSS VCC
15 61
PL2/SEG19 STBY
16 60
PL1/SEG18 NMI
17 59
PL0/SEG17 RES
18 58
PK7/SEG16 OSC1
19 57
PK6/SEG15 OSC2
20 56
PK5/SEG14 MD1
21 55
PK4/SEG13 PH7
22 54
PK3/SEG12 AVC C
23 53
PK2/SEG11 VREF
24 52
PK1/SEG10 P40/AN0
25 51
PK0/SEG9 P41/AN1
HD64F2268TFV
CPU5
R484
R486
R483 100K
1K
100K
R485
100K R464
22K
47K
0.1 R467 R466
C442 47K
0.0022 R476
R479 R477
R468
68K C447 68K 68K
47K R478
0.0033
5
C449 68K
I C403 7
R480
6
10
68K
8 I C403
9 NJM12902V
NJM12902V
TONE
CDCS
MIC
SO
SCK
MDIO
MSCK
SS
PLST
INT
EXSM
EXOE
MTDT
MTCK
NOIS
SDEC
CDEC
R529
LVIN
10K
RSSI
BATV TEMP
D407
4 UNLK
MDI R
MA2S111
I C411 MRDF
TC75S51FU DAST
RAC
FRONT UNIT
4.96V
C412
19.66MHz
1.44Vp-p
0.1
R495 MA2S077
C413
12K D404 0.1
C414
15P
X401
CR-764
R492
SENC0
SENC1
1M
SENC2
SENC3
MDIR
PTT
RAC
BPMAX
I C408
1 5
OUT CD
2
VDD
4
3
VSS NC
RES
BD5242 G
UNLK
Q411
KRC404E
OPTV
TEMP
MD
CSFT
KR0
KR1
S40 7 S40 2 S403 S404
P0 P1 P2 P3
KEY KEY KEY KEY
R461
CENC0
180K
R462
CENC1
56K
R463
CENC2
S40 6 S40 5
22K
UP DN
KEY KEY
R471
SENC0
220K
R472
SENC1
100K
R473
SENC2
CP10S
47K
R474 CP5
SENC3 J401
CP10S
I MSA-9681S-36A-TB
22K
CP6
36
GND
35
34
33
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
4
PWON
3
VCC
2
VCC
1
*; Refer to "PARTS LIST."