Icom IC-F70DT, Service Manual, Page: 39 / 42

VOLTAGE LINE
Explanatory notes
TX LINE
RX LINE
COMMON LINE
DASW
RESB
TEMP
R5V
C402 47p
C405 10p
C404 10p
VCC
CPU5
CPU5 5V BATT T5V VCC
-BATT
+BATT BATT
J3
DRXD
DTXD
J2
R359 47k
R358 47k
R357 47k
J1
(CHASSIS)
unit J1 to FRONT
MIC
SP+
VCC
OPTV
AFVI
VOXOUT
PWRSW
KR
EM
PTTI
PTTSW
SPCON
AFON
FSDA
FSCL
RES
XTXD
XRXD
RESB
R8
R4
R2
R1
+5V
EXPTT
CCK
DCSI
CSO
IRQD
CCS
DFIL
DAFO
DRMT
TEMP
BUSY
DAFON
RSSID
DMMT
DMI
VCC
DMO
5V
DPTT
PTTI
CCK
ANASW
ACSI
DASW
CSO
PMFM
IRQA
GND
CCS
OPT3
REM
OPT2
AFOUT
OPT1
DISC2
SIG
ARMT
BEPO
BUSY
AFONO
AMMT
PTTO
PTTI
CPU5
VCC
MCOT
MIC
ANT
PTTO
CPU5 T5V VCC
T5V
VCC
C203 0.001
TA75S01F
IC5
2
5
1
3
4
+
-
T5V
VCC
ANT
CP15
0.001 C388
HD64F2268TF
IC307
R410 1k
4
3
2
1
5
6
7
8
CPU5
CPU5
S5V
5V
R5V
CPU5
4
3
2
1
180 R399
S5V
5V
R5V
CPU5
T5V
5V
S5V
5V
R5V
CPU5
5V
R5V
T5V
5V
1 C460
10 C444
L301 4.7
µ
5V
CPU5
BATT
VCC
CPU5
5V
CPU5
5V
ERJ3GE-JPW
R141
ERJ3GE-JPW
R91
VCC
47
R95
R5V
0.01 C159
R5V
T5V
R5V
0.001 C182
EP4
R107 47
100
R39
R42 100
MAIN UNIT
GND
MIC
SP+
VCC
VCC
OPTV
AFVI
VOXOUT
PWRSW
KR
EM
PTTI
PTTSW
NC
SPCON
AFON
FSDA
FSCL
GND
RESET
XTXD
XRXD
RESB
R8
R4
R2
R1
+5V
+5V
EXPTT
CCK
DCSI
CSO
RTSI
IRQO
GND
CCS
DFIL
MD2
DAFO
C_RES
CTSI
DRMT
TEMP
BUSY
DAFON
RSSID
DMMT
DMI
VCC
DMO
5V
DPTT
GND
PTTI
CCK
OPV1
ACSI
OPV2
CSO
OPV3
IRQA
GND
CCS
OPT3
REM
OPT2
AFOUT
OPT1
DISC2
SIG
ARMT
MOWN
BEPO
BUSY
AFONO
AUX
AMMT
MCIN
VCC
MCOT
CPU5
PTTO
GND
PTTI
TMUT
RSSI
SCK
IRQD
IRQA
CIRQ
ARMT
DRMT
RMUT
DMMT
AMMT
MMUT
SIDE3
PTTSW
SIDE2
SIDE1
DCSI
ACSI
CSI
R5C T5C S5C
PWRSW
PWR0
BATV
DSDA
RLVA
TLVA MMUT
OPT1
OPT2
OPT3
MDIO MDIR MTDT SIDE3 CENC0 CENC1 CENC2 SIDE2 MRDF KR MTCK XRXD FSDA FSCL XTXD
MSCK
PMFM
ESDA
ESCL
ESCL
ESDA
PMFM
MSCK
MDIR
R8
R4
R2
R1
DTPD
RESB
SSO
SCK
PLST
DASW
T5C
TMUT
NWC
DDSD
DDAC
R8
R4
R2
R1
DTPD
RESB
SSO
SCK
PLST
DASW
T5C
TMUT
UAFON
NWC
DDSD
DDAC
CSO
CSI
CCK
CCS
DAFON
UAFON
AFONO
AFON ESCL ESDA
R5C S5C
PTTO
EM
BUSY RMUT NOIS
PWRSW
DDST CIRQ PWRO SENC BEEP SDEC CDEC UNLK BATV LVIN RSSI
ERJ2GE-JPW
R392
RESB
EXTD
SPCON
DUSE
DAST
DSDA
RES
EXPTT
SIDE1
VOXOUT
AFVI
ANASW
OPTV
TEMP
N
M
L
K
J
I
H
G
F
D
C
E
B
A
MA8051
D306
DTC144EE
Q302
C380 0.1
0.1 C394
BU4053BCFV
IC305
DAP202U
D313
DAP202U
D304
DAP202U
D303
DAP202U
D302
R415 100k
100k R414
100k R413
BOARD
ANT
0.001 C1
BOARD
FUSE
J1
BLM21P300S
L1
C475 100p C470 470p C473 100p C474 100p
Battery
from
C369 0.001
C377 47p
C371 0.001
C370 47p
C471 470p
CP5
DAP202U
D301
R350 100k
ERJ2GE-JPW
R503
CP4
100 R441
CP6
CP7
C360 0.001 C358 47p C352 47p
C359 0.001 C367 0.001
0.001 C350
100k
R340
ERJ2GE-JPW R501
R349 1M R348 1M R347 1M R346 330k R345 330k R344 330k
only [F70DS/DT] unit J1 to DSP
unit to Optional
GND
CP22
VCC
CP21
100p C455
SW-167
S1
100p C458
SW-167
S4
100p C457
SKHLLFA010
S3
SW-167
S2
100p C456
M62334FP
IC310
10k R128
0.001 C192
0.001 C464 0.001 C195 0.001 C465
10 C459
470
R433
0.1 C446
10k
R432
0.001 C177 0.001 C463
10k
R105
100k
R118
100k
R119
5
6
7
8
4
3
2
1
GND
SDA
SCL
VCC
AO4
AO3
AO2
AO1
2SK1829
Q19
0.001 C84
47p C90
0.001 C97
10 C101
0.001 C105
C113 0.001
4.7k
R70
RB706F-40
D11
0.1 C190
27p
C200
MA2S728
D21
MA2S077 D20
39n
L41
C201 6p C199 5p
D22 1SV307
C202 12p
50n
L42
120p C236 12p C235
C2012C-82NG L60
HVC375B D19
0.5p C232 5p C194
C2012C-R12G
L39
0.001
C234
33p
C198
27p C196
12p
C197
12p
C193
5p C191 0.5p C233
HVC375B D18
C2012C-R12G
L38
0.001
C186
C189 5p
180k R112
3SK293
Q18
18 R101
0.001 C179
C2012C-R10G L37
0.001 C180
47p C181 120 R109
C175 1
0.001 C178
10
R108
100k R111
220k R114
0.001 C188
0.1 C184
0.1 C185
MA2S111 D17
470k
R116
10k
R125
220k
R117
R115 5.6k
0.1
C187
10k
R113
0.001 C111
2.2k
R62
220
R140
MA2S111
D31
C115 0.1
R120 10
0.001 C210
C208 0.001 R126 10k
R124 68k C124 0.1
R123 270k
R121 220k
C123 0.1 D23 MA2S111
J1
6p C174
HVC350B D16
100k R104 0.001 C172
6p C171
HVC350B D15
100k
R103
47p
C176
C2012C-27NG
L55
68n
L54
39n L53
68n
L52
47p
C173
C2012C-33NG
L49
68n
L40
0.001
C168
8p C154
12n
L45
ERJ2GE-JPW
R100
120p C237
C2012C-R10G L61
0.001
C166
0.01 C164
100 R96
617DB-1714
L33
1SV307
D12
0.001
C126
32n
L23
30n
L22
8p
C207
11p
C205
12p C204 15p C206 3p C209
R127 82k
0.001 C116
18p C121 10p C114
50n
L20
4.7
µ
L21
150 R122
0.001
C122
0.001
C119
0.001
C108
0.5p C110
2.7k R65 18p C106 68p C102
56p
C103
7.5n
L19
10.5n
L18
ERJ2GE-JPW
R139
4
5
6
3
2
1
SPM5001
IC4
100
R137
100
R138
6p C170
18p
C77
C1608CB-15NG
L35
C1608CB-15NG
L34
12p C167 6p C165
R97 820 R99 820
0.001
C161
6.8
R98
617DB-1714
L31
S2
S1
G2
D2
D1
G1
617DB-1714
L30
0.01
C156
0.01 C158
0.001 C78
10k
R43
1k
R44
MA2S077 D9
1k
R45
5p
C79
18n
L58
2SK1771
Q17
0.01 C80
47p C83 10 R49 10k R46
RD07MVS1
Q13
RD01MUS1
Q12
23.2n L17 0.001 C99
22 R58
0.001 C100
470p C98 100k R57 4.7k R56
100p
C96
27p C94
2SC5110
Q11
EXCCL3225U
L15
0.001 C89
1 C95
EP3
0.001 C91
18n L16
100p
C87
68 R55
0.001 C93
0.01 C92
33k R54
4.7k R53
0.001 C86
100 R52
1.5k R48
47p C88
0.001 C85
47n L14
2.2k R51
100 R47
0.001 C81
15p
C82
MA2S077
D10
100k R419
R427 1k
R426 1k
R422 1k
R425 1k
R421 1k
1SS301
D311
1 2
ERBFE3R00U
F1
TPC6103
Q309
3 2 1
4 5 6
R437 100k
R439 270k
100k
R440
C453 0.001 C452 0.001
C451 10
R438 100k C450 0.01
0.001 C454
DTC144EE
Q310
3 2 1
4 5 6
3 2 1
4 5 6
TK11250CM
IC311
XP6501
Q307
2SB1132
Q308
2.2k R434 1 C449 0.1 C448 0.01 C461 0.1 C447
100
R435
4.7 C445
0.001 C443 0.001 C425 0.001 C422
CP23
NP GND CONT
VOUT
GND
VIN
10k R436
R430 4.7k R428 4.7k R420 4.7k
2SA1577
Q306
C442 0.01
C441 0.001
R431 10k
2SA1577
Q305
C424 0.01
C423 0.001
R429 10k
2SA1577
Q304
C421 0.01
C419 0.001
R424 10k
MA2S111
D309
1SS301
D310
HN58X24128FPI
IC308
VSS
A2
A1
A0
SDA
SCL
WP
VCC
ERJ2GE-JPW R395
0.1 C420
R416 10k
R417 100k
R456 33k
R418 100k
C440 47p
C439 47p
C438 47p
C437 47p
C436 47p
C435 47p
C434 47p
C433 47p
C432 47p
C431 47p
C430 47p
C429 47p
C428 47p
C427 47p
C426 47p
C418 0.1
CP14
CP13
CP12
C396 0.001 C392 0.001 C389 0.001
C416 47p C415 47p
R444 100k R445 100k
R446 100k
R412 1k
R408 1k
CP9
R400 100
C399 0.1
C398 0.1
C462 47p
DTA144E
Q311
D312 MA2S111
470k
R505
R504 100k
EW-460
IC312
G
O I
9
10
11
12
13
14
15
16
8
7
6
5
4
3
2
1
C
B
A
X0
X1
X
Y
VDD
VSS
VEE
INH
Z0
Z
Z1
Y0
Y1
1
2
3
5
4
BD5242G
IC304
0.01
C381
C378 0.1
VDD
CD
NC
OUT
VSS
R405 1k
C413 47p
C412 47p
C411 47p
C410 47p
C408 47p
47p
C395
10k
R447
R411 1k
R409 1k
100k
R406
C393 22p
C391 7p
R391 1M
CR-803
X302
12k R384
MA2S077
D307
0.01 C390
33p
C386
R385 12k R381 12k
R386
C384 47p C383 47p
R407 1k
R388 1k
R387 1k
R380 1k
R379 1k
R443 100k R442 100k R383 100k
NC
HOT
NC
HOT
CP8
C397 0.001
1k
R402
MA2S111
D308
R451 100k
R454 100k
R453 2.2k
R452 2.2k
EP5
EP6
R403 100
R404 100
R450 100k
R449 100k
R448 100k
R455 100k
R94 820 R93 820 C155 6p
6.8
R92
0.47
µ
L29
FI3 FL-380
2
4
6
3
1
5
C153 22p
C163 4p
1.8
µ
L27
C149 0.01
R88 8.2k
GND
IN
OUT
GND
R89 10
0.01 C157 0.01 C151
0.001 C150
R87 18k
R85 100
C148 0.01
L32 1.5
µ
4.7k R86
1u L26
7p
C75
4.7 R40
C76 0.001
2SC5107
Q10
R41 100k
C1608CB R10G L13
C74 5p
C63 3p
2SC5107
Q9
C70 10p
C69 0.001 R38 220k
LLQ1608-A33N L12
PM6/SEG31
PM5/SEG30
PM4/SEG29
PM3/SEG28
PM2/SEG27
PM1/SEG26
PM0/SEG25
PL7/SEG24
PL6/SEG23
PL5/SEG22
PL4/SEG21
CVCC
PL3/SEG20
VSS
PL2/SEG19
PL1/SEG18
PL0/SEG17
PK7/SEG16
PK6/SEG15
PK5/SEG14
PK4/SEG13
PK3/SEG12
PK2/SEG11
PK1/SEG10
PK0/SEG9
PJ7/WKP7/SEG8 PJ6/WKP6/SEG7 PJ5/WKP5/SEG6 PJ4/WKP4/SEG5 PJ3/WKP3/SEG4 PJ2/WKP2/SEG3 PJ1/WKP1/SEG2 PJ0/WKP0/SEG1
P10/TIOCA0 P11/TIOCB0
P12/TIOCC0/TCLKA P13/TIOCD0/TCLKB
P14/TIOCA1/IRQ0
P15/TIOCB1/TCLKC
P16/TIOCA2/IRQ1
P17/TIOCB2/TCLKD
AVSS
P97/AN9/DA1 P96/AN8/DA0
P47/AN7 P46/AN6 P45/AN5 P44/AN4 P43/AN3 P42/AN2
PM7/SEG32 PN0/SEG33 PN1/SEG34 PN2/SEG35 PN3/SEG36 PN4/SEG37 PN5/SEG38 PN6/SEG39 PN7/SEG40 PH0/COM1 PH1/COM2 PH2/COM3 PH3/COM4 V1 V2 V3 C1 C2 PF3/ADTRG/IRQ3 P35/SCK1/SCL0/IRQ5 P34/RXD1/SDA0 P33/TXD1/SCL1 P32/SCK0/SDA1/IRQ4 P31/RXD0 P30/TXD0
P70/TMRI01/TMCI01
P71/TMRI23/TMCI23
P72/TMO0
P73/TMO1
P74/TMO2
P75/TMO3/SCK2
P76/RXD2
P77/TXD2
MD2
FWE
EXTAL
VSS
XTAL
VCC
STBY
NMI
RES
OSC1
OSC2
MD1
PH7/TONED/TMCI4
AVCC
VREF
P40/ANO
P41/AN1
100
99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76
50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26
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
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
5.0V
7.2V
L2: 2.1V
L1: 1.9V
Hi: 2.3V
5.0V
1.7V 155MHz
2.1V 155MHz
OFF: 0V
SW ON: 7.2V
RX: 5.0V
TX: 0V
RX: 0V
TX: 5.0V
5.0V
4.9V
3.3V
11 - 3