Icom IC-F3061S Service Manual page 68

SECTION 12 VOLTAGE DIAGRAMS
FRONT UNIT
VCC
+5V
IC501
S-812C30AMC
IC505
1 5 M62320FP
GND NC
2 1
VIN SO CS0
3 4 2
VOUT NC SCL CS1
3
SDA CS2
AFON 4
D0 VDD
LIGH 5
D1 D7
SPCON 6
D2 D6
MCON 7
D3 D5
8
GND D4
D503 R518 R517 D502
MA2S728 0 0 MA2S728
EPTT
Q514
UNR9113J TX: 0.6V
RX: 5.0V
PTTI Q505
UMG2N
TX: 5.0V
R519
1
RX: 0.0V 10k
back light 2
TX: 0.0V
ON: 0.0V
RX: 4.2V
OFF: 7.2V
3
PTTSW
Q507 Q509 back light
UNR9213J DTB123EK ON: 7.2V
OFF: 0.0V [10-key type only]
LIGH
VCC
back light
ON: 5.0V
7.2V
OFF: 0.0V
Q508
DTA114EU
back light
ON: 7.0V
OFF: 0.0V
D504
MA2S111
MCON
R567 100k
C542 220p
R552 100k
R515 C522
82k 0.1
6
-
MCIN 7
5
+ Q515
2SK3019
IC509
R516 C523
NJM12904V
100k 0.1
EMIC
7.2V
Q501
2SB1132
VCC
6 5 4
D508
DAN202U
AFON Q502
AFONO XP6501
1 2 3
SPCON
Q512
R558
UNR9213J
4.7k
Q513
UNR9213J
R566
0
AF
J503
EPTT EPTT
EMIC EMIC
CLO R535 47 CLO
R557 47 VCC
MDET R538 1k MDET
+5V R539 10k
GND
RES R537 1k RES
CLI R536 47 CLI
CP507
+5V
5.0V
IC506
M62320FP
16 D505 16 1
CS0 SO
DAP222
15 15 2
R553 CS1 SCL
14 14 3
100k
CS2 SDA
13 [4-key type only] 13 4
VDD D0
12 12 5
CP506 D7 D1
11 D506 11 6
CP505 D6 D2
10 DAP222 10 7
CP504 D5 D3
9 9 8
CP503 D4 GND
CP508
TX: 0.0V
RX: 5.0V
1 S501 2 S502 3 S503 P0 S504
R522
100k
5
4 S505 5 S506 6 S507 P1 S508
R523
100k
4
7 S509 8 S510 9 S511 P2 S512
R524
100k
S513 0 S514 # S515 P3 S516
R525
100k
+5V
R513
Q506 10k
Q516
UNR9113J
UNR9213J
8
V+
IC509
R542 NJM12904V
GND
22k
4
IC508
TDA8547TS
R563 10k
20 1
VCC1 GND1
19 2
R510 82k NC NC
18 3
C515 0.1 R508 10k OUT1- OUT1+
17 4
IN1- MODE
16 5
IN1+ SVRR
15 6
C517 0.1 R509 10k IN2+ SELECT
14 7
IN2- NC
13 8
OUT2- OUT2+
12 9
R511 100k NC NC
11 10
VCC2 GND2
IC509
NJM12904V R564 10k
3
+
1
2
-
R559 4.7k
R540
15k
C540 390p
R541 100k
C560
0.0033 C501 33
MEASUREMENT CONDITIONS
DIGITAL VOLTMETER
C502 33
FREQUENCY: 435MHz
TX: TX output 5.0W
RX: SG output level +60dBu
JACK UNIT
J801
EPTT
EMIC
CLO
VCC
MDET EP801
EP802
EAFO
GND
RES
CLI
EP803
MAIN UNIT
J501 J3
GND GND TEMP
MDET MDET
R280
VCC VCC
ERTJ0EP473J
VCC VCC
+5V +5V
R2
+5V +5V
10k
CLO CLO BAL
RES RES REF
FSCL FSCL
R3
FSDA FSDA 330k
PTTSW PTTSW
PTTI PTTI
KR KR
CLI CLI
AFONO AFONO
LRES LRES
EPTT EPTT
AF AF
MCIN MCIN
GND GND
PLST
J502 SSO
+5V SCK
UNLK
LRES
FSDA
FSCL to LCD
GND
GND
C538
1
C191
0.1
D32
DAN235E
C193
0.1
Narrow: 4.8V
Wide: 0V
Digital: 4.8V
MC501
SKB-2746
TONE
DMO
MICA
SIGO
AFOUT
+5V
R143
CHASSIS
39k
SP1
W501
+ MODD
-
W502 MTCK
MTDT
MDIO
MRDF
MSCK
MDIR
SDEC
R144
1k
CP3 R146 0
DISC
CP4 C239 47p
CDEC
R150
470
MCOT
R151
470
MCIN
MP801
AFO
VCC +5V
OPTV
MICE
MULTI-CONNECTOR
RESET
RXD
D41
TXD MA2S111
Explanatory notes
VOXV
MIC
PTT
IC9
VOLTAGE LINE
NJM12902V
TX LINE
RX LINE
COMMON LINE
VCC
+5V
Q19
8
2SK880
C1 47p
V+
IC21
R203
R1 330k NJM2904V
470
GND
X1
4 CR-826
15.3MHz
3 C4 0.1
1 1 4
+
2 VCON VCC
-
R337
15k 2 3
IC21
GND OUT
NJM2904V
15.3MHz
880mVp-p
CP7
IC1
LMX2352TM
C8
24 1
OUT1 CUTO 27p R339 0
23 2
VCCIF VCCRF
22 3
R6
VPIF VPRF
1k 21 4
CPOIF CPORF
20 5
GND GND
19 6
FINIF FINRF
18 7 C9 47p
FINRF FINRF
17 8
GND GND
16 9
LE OSCX
15 10
DATA OSCIN
14 11
CLOCK FO/LD
C201
13 12
IF_EN RF_EN 10p
Q18
R343
2SC4116
1k
TX: 0V
RX: 4.7V
R103
FI2
47
CFWC450G
IC3
TA31136FNG C183
O I
0.01
C192 1 16
OSCIN MIXIN
0.1
2 15
D33 OSCOUT GND
3 14
DAN235E
MIXOUT N-REC
R106 4.7 4 13
VCC N-DET
C189 0.1 5 12
IFIN RSSI
R105 3.3k
6 11
DEC IFOUT
7 10
FI3 FILOUT QUAD
8 9
CFWKA450KHFA
FILIN AFOUT
R121
I O
100k
C194
0.1
Q26 IC21
UNR9113J NJM2904V
R124
5 4.7k TX: 0.2V C186 47p
+ 7
RX: 1.2V
6
-
C203 0.001
R188 100k
R5V
R181 270k
R180 180k
R179 68k C274 0.1
R178 68k C275 0.1
R158 33k C249 0.1
2.5V
IC5
AK2346P
R131
C248
1 24 100k
AGNDIN TEST 180p
2 23
AGND RXIN
3 22
R159
TXIN RXINO
R152
4 21 100k
TXINO RXLPFO 1M
5 20
LIMLV RXAF
Q28
6 19
EXTLMIN RXAFIN XP4601
7 18
MOD EXPOUT 3
8 17
VSS VDD
9 16
TCLK XIN 2
10 15
TDATA XOUT
11 14
DI/O DIR R128 1M 1
12 13
RDF/FC SCLK
R130
X3 1.2k
CR-765
Analog TX : 0V
R155 100k
Digital TX: 5V
IC13
R147 330k C241 0.0012
CD4053B
C244 220p
1
Y1 VDD
2
Y0 Y
R328
C245 0.0018 3
ERTJ0EP473J Z1 X
4
Z X1
5
R148 33k Z0 X0
6
INH A
7
VEE B
8
VSS C
R175 820
C402
1 R330 6.8k C242 0.1
IC15
AN6123MS R174
2.7k
1 5 IC14
VCC OUTPUT
CD4053B
4
GND
2 3 1
DET INPUT Y1 VDD
2
Y0 Y
3
Z1 X
4
Z X1
Q43 5
Z0 X0
2SK3019
6
INH A
7
VEE B
8
VSS C
R183 680k C258 470p
R169 24k
C268
13
14 - 0.018 9
-
12 8
+
10
+
IC9
NJM12902V
2.0V
MUTE ON: 0.5V
OFF: 5V
12 - 1
A
a
B
C
[ L ] = Low band
[ H ] = High band
C152
C156
1p
2p
C153 0.001
R5V
D
TX: 0.1V R7 R12
RX: 2.9V 0 1.5k
C198
4p
R11
10k
E
R5V
S5V
F
C384 0.1 G
TX: 0V
RX: 4.8V
C392
R99
7p 10
R5V
L50
1.8μ
Q25
TX: 0V
2SC4215
RX: 4.7 V
Q24
2SC4116 H
R305
3.3k
R5V
I
J
K
+5V
4
V+
GND
11
IC9
NJM12902V
R135
10k
4
V+
C223
0.1
4
GND
11
5
R137
6 IC17
22k
NJM12902V
Q34
C299 UNR9213J
0.1
RX: 5V R207
47k
IC17
RX: 5V
NJM12902V
R206
16 4.7k 3
+
1
15 2
-
14
13
12
R208
11 PMFM 47k
10
9 EMPH
+5V
Narrow: 0V
L
Wide: 0V
Digital: 5V
16
15
14
13
12
11
R176
10
100k
9
C252
0.1
M
N
O