Icom IC-F70DT Service Manual page 39

A
MAIN UNIT
R42 100
T5V
B
R39
100
C75
7p L58 C79
C 18n 5p
Q10
2SC5107
D10
R45
Q9
MA2S077
1k
2SC5107
D C82
15p
R44 R43
1k 10k
R5V
E
5.0V
R89 10
R5V
C77 L35
18p C1608CB-15NG
F
L32 1.5µ FI3 FL-380
Q17
L29 R92 C156
5
2SK1771
0.47µ 6.8 0.01
4 1
GND IN
2 3
OUT GND
6
L27
1.8µ
R392
ERJ2GE-JPW
5V
G
CPU5
H
IC305
BU4053BCFV
R446 100k
TEMP 1 16
Y1 VDD
OPTV 2 15
Y0 Y
TEMP 3 14
Z1 X
4 13
Z X1 CP9
5 12
Z0 X0
6 11
INH A
7 10
VEE B
8 9
VSS C
ANASW
AFVI
VOXOUT
CPU5
SIDE1
C380 0.1
Q302
DTC144EE
EXPTT
D306
MA8051
RES
IC304
BD5242G
R386
3 4
VSS NC
2
VDD
1 5
OUT CD
C381
0.01
DSDA R379 1k
DAST R380 1k
DUSE
SPCON R387 1k
EXTD R388 1k
CP8
R407 1k
X302
D307 C386
CR-803
33p
MA2S077
1 3
HOT HOT
2 4
NC NC
D308
R391 1M
MA2S111
Q311
DTA144E
R504 100k R452 2.2k
R453 2.2k
IC312
EW-460
R454 100k
I O
G R451 100k
R447 C395
10k 47p
R505
C404 10p
470k
C405 10p
4.9V
I
CPU5
J
R5V
K
5V
L
S5V
M
N
11 - 3
R5V
VCC
L15 C103
7.2V EXCCL3225U 56p
L18 L19
10.5n 7.5n
C87 C96
100p
100p
Q12 Q13
RD01MUS1 RD07MVS1
Q11
2SC5110
R140 D31
220 MA2S111
R62
2.2k
Hi: 2.3V
R95
47 L1: 1.9V
L33
L2: 2.1V
617DB-1714
L34 R98 C161 L31
C1608CB-15NG 6.8 0.001 617DB-1714
R139
ERJ2GE-JPW
L30
617DB-1714
IC4
SPM5001 R138 R137 R141
100 100 ERJ3GE-JPW
1 6
G1 G2
2 5
D1 S1
R91
3 4
D2 S2
ERJ3GE-JPW
R408 1k
OPT3
OPT2
OPT1
R400 100
MMUT
C398 0.1
R412 1k
C399 0.1
51 25
P41/AN1 PK0/SEG9
52 24
P40/ANO PK1/SEG10
53 23
VREF PK2/SEG11
54 22
AVCC PK3/SEG12
55 21
PH7/TONED/TMCI4 PK4/SEG13
56 20
MD1 PK5/SEG14
57 19
OSC2 PK6/SEG15
58 18
OSC1 PK7/SEG16
59 17
RES PL0/SEG17
60 16
NMI PL1/SEG18
61 15
STBY PL2/SEG19
62 IC307 14
VCC VSS
63 HD64F2268TF 13
XTAL PL3/SEG20
64 12
VSS CVCC
65 11
EXTAL PL4/SEG21
66 10
FWE PL5/SEG22
67 9
Explanatory notes
MD2 PL6/SEG23
68 8
P77/TXD2 PL7/SEG24
69 7
P76/RXD2 VOLTAGE LINE PM0/SEG25
70 6
P75/TMO3/SCK2 PM1/SEG26
71 5
TX LINE
P74/TMO2 PM2/SEG27
72 4
P73/TMO1 PM3/SEG28
73 3
RX LINE
P72/TMO0 PM4/SEG29
74 2
P71/TMRI23/TMCI23 PM5/SEG30
75 COMMON LINE 1
P70/TMRI01/TMCI01 PM6/SEG31
R402
1k
R411 1k
EP6 R404 100 ESCL
ESDA
EP5 R403 100 PMFM
MSCK
R406
100k
R455 100k
C402 47p R448 100k
R449 100k
R450 100k
CPU5
R5V
5V
S5V
R5V
VCC
T5V
ANT
C119
5.0V
0.001
C108 L20 C122 C126 L22 L23
0.001 50n 0.001 0.001 30n 32n
D12 C205 C207
11p
1SV307 8p
R70
D11
4.7k L42
RB706F-40
50n
Q18
3SK293
L45 R100 C168 L40 L52 L54
C166
0.001 12n ERJ2GE-JPW 0.001 68n 68n 68n
C173
L49
47p C2012C-33NG
C176
47p
L55
C2012C-27NG
R103 L38
C2012C-R12G
100k
R118
100k
R105
10k
CPU5
D310
1SS301 2.1V 155MHz
AFONO
UAFON
R416 10k
TLVA
R417 100k RLVA
DAFON
IC308
D309
HN58X24128FPI
MA2S111
8 1
VCC A0
7 2 DSDA
WP A1
6 3
SCL A2
5 4
SDA VSS
R456 33k
R421 1k
CCS
CCK
CSI
CSO
R425 1k
DDAC
DDSD
NWC
UAFON BATV
R422 1k
R418 100k
TMUT
T5C
DASW
PLST
DASW
R426 1k CPU5
SCK
5V
SSO
RESB
DTPD
Q308
RESB 2SB1132
R427 1k
R1
R2
R4
R8
CP12
CP13
CP14
C426 47p DDAC
C427 47p DDSD 5V
CP15
C428 47p NWC
C429 47p TMUT 5.0V
C430 47p T5C
Q304
C431 47p DASW
2SA1577
C408 47p
MDIR C432 47p PLST
C433 47p SCK
C410 47p
MSCK C434 47p SSO
C435 47p RESB
C411 47p
PMFM C436 47p DTPD
C437 47p R1
C412 47p
ESDA C438 47p R2
C439 47p R4
C413 47p
ESCL C440 47p R8
CPU5
R5V
5V
S5V
VCC
T5V
C123 0.1 D23 MA2S111
R121 220k
R503
ERJ2GE-JPW
R125
5 10k
3
4
-
1
+
2
IC5
TA75S01F
C203 0.001
L41
39n
R116 C200
R113
470k 27p
10k
R340
100k
D21
Q19
C187
MA2S728
2SK1829
0.1
R108
10
RSSI PTTO
R117
220k
D301
DAP202U
C197
C198 C234
12p 33p 0.001
C186 C193
0.001
12p
L39
C2012C-R12G
R119
100k
1.7V 155MHz
CPU5
IC310
M62334FP
R433 C471 470p
470
1 8 5V
AO1 VCC
2 7
AO2 SCL
3 6
AO3 SDA
4 5 R432
AO4 GND
10k
C369 0.001
SW ON: 7.2V
OFF: 0V
VCC C370 47p
F1
Q309
ERBFE3R00U
TPC6103 2 1 BATT
C371 0.001
CP22 CP21
GND VCC
C377 47p
R440
100k
D311
1SS301
PWR0
Q310
DTC144EE
PWRSW
MMUT
S1
D302
SW-167
DAP202U
SIDE1
AMMT
DMMT
L301 4.7µ
VCC
IC311
S2
TK11250CM
SW-167
SIDE2
RMUT
S3
SKHLLFA010
PTTSW D303
Q307
DAP202U
XP6501
DRMT
ARMT
R435
S4
100 SW-167
SIDE3 CIRQ
D304
DAP202U
IRQA
IRQD
5V
TX: 5.0V TX: 0V
RX: 0V RX: 5.0V
Q305 Q306
2SA1577 2SA1577
D313
DAP202U
ACSI
CSI
DCSI
R5V
5V
T5V
ANT
(CHASSIS)
BOARD
J1
ANT
R350 100k
J1
PTTI PTTI
GND
PTTO PTTO
CPU5 CPU5
MCOT MCOT
VCC VCC
MIC MCIN
AMMT AMMT
AUX
AFONO AFONO
BUSY BUSY
BEPO BEPO
MOWN
CP5
ARMT ARMT
SIG CP6 SIG
DISC2 DISC2
OPT1 OPT1
AFOUT AFOUT
OPT2 OPT2
CP7
REM REM
OPT3 OPT3
CCS CCS
GND GND
IRQA IRQA
PMFM R357 47k OPV3
CSO CSO
DASW R358 47k OPV2
ACSI ACSI
ANASW R359 47k OPV1
CCK CCK
J2
PTTI PTTI
GND
DPTT DPTT
5V 5V
DMO DMO
VCC VCC
DMI DMI
DMMT DMMT
RSSID RSSID
DAFON DAFON
BUSY BUSY
TEMP TEMP
DRMT DRMT
CTSI
3.3V
C_RES
DAFO DAFO
MD2
DFIL DFIL
CCS CCS
GND
IRQD IRQO
RTSI
CSO CSO
DTXD
DCSI DCSI
DRXD
CCK CCK
J3
EXPTT EXPTT
+5V +5V
+5V
R1 R1
R2 R2
R4 R4
R8 R8
RESB RESB
XRXD XRXD
XTXD XTXD
RES RESET
GND
FSCL FSCL
FSDA FSDA
AFON AFON
SPCON SPCON
NC
PTTSW PTTSW
PTTI PTTI
EM EM
KR KR
PWRSW PWRSW
VOXOUT VOXOUT
AFVI AFVI
OPTV OPTV
VCC VCC
VCC
SP+ SP+
MIC MIC
GND
CP23
L1
J1
BLM21P300S
BATT +BATT
from
-BATT
Battery
FUSE
BOARD