Icom IC-F70DT, Service Manual

Page: 38 / 42

VOLTAGE LINE
Explanatory notes
TX LINE
RX LINE
RSSID REM DISC2
R302 3.3k C308 0.1
5V 5V
S5V
5V
0.001 C140
S5V
5V
R5V
R5V
0.01 C162
R5V
0.1 C385
R5V
5V
0.1
C214
0.001
C213
3.3
µ
L44
220k
R130
5V
R5V
3.3k R68
2SC4215
Q14
R5V
5V
4.7 C362
47k
R372
0.001 C379
MICA
S5V
5V
5V
5V
0.1 C336
S5V
5V
5V
5V S5V
5V
11
4
NJM12902V
IC2
GND
V+
+
-
+
-
10
9
8
1
3
2
-
+
-
+
NJM12902V
IC2
5V
5V S5V
330p C36
S5V
5V
C17 0.01
4.7k
R12
5V
S5V
2
3
1
4
S5V
5V
5V
SENC
CENC2
CENC1
CENC0
TENC
DUSE
RSSI NOIS DET SQL
NWC
BEPO
BEEP
SP+
TONE
REF SQL
MOD DAST
SCK SSO
TENC
BAL
DET
TLVA RLVA MOD T5C
DFIL DAFO DASW PMFM DMI DMO DDST DDAC DDSD DTPD EXTD MIC MCOT CDEC DET
AFOUT
SDEC
MDIR
MSCK
MRDF
MDIO
MTDT
MTCK
SIG
MICA
TONE
CDEC
UNLK
SCK
SSO
PLST
LVIN
TEMP
BAL
REF
N
M
L
K
J
I
H
G
F
E
D
C
B
A
470 R33
R382 3.3k
2SC4215
Q303
4.7k
R378
C382 0.1
100 R389
C66 0.5p
1
2
3
5
4
5
4
1
2
3
10k
R36
1k
R37
0.001 C73
560
R32
10k
R136
C71 0.001
DTC144EE
Q8
XP1214
Q7
2SC5107
Q6
XP1214
Q21
0.75p C65
100 R35
0.001 C67
100k R34
0.1
µ
L11
0.001 C72
470p C68
0.1 C64
-
+ 8
9
10
-
+
-
+
13
12
14
6
5
7
NJM12902V
IC12
NJM12902V
IC12
0.0027 C376
68k
R371
68k
R367
270k
R355
0.1 C354
68k
R365
C372 0.0056
C373 180p
47p C366
C361 0.0082
68k
R363
68k
R362
C364 68p
47p C357
22k R373
180k
R374
56k
R375
22k
R376
1k
R377
0.015 C375
C374 0.1
47k
R368
47k
R366
C363 47p
47k
R364
NJM12902V
IC12
4.7k
R351
DTC144EE
Q300
C368 820p
0.1
C365
18k
R360
TC4W53FU
IC313
ERJ2GE-JPW R506
0.1 C332 0.1 C320
1
C324
5.6k
R323
4.7k R299
R330 47k C339 0.1
C331 560p
R396 68k
C409 0.0022
CP20 CP19
ERJ2GE-JPW
R337
CP18
10k R317
R318 10k CP1 CP16
C335 330p
R328 33k
0.0022 C338
R397 18k
R327 18k
C466 0.0012
8 9
C VSS
7
6
5
4
3
2
BU4053BCFV
IC302
1
10
11
12
13
14
15
16
B
A
X0
X1
X
Y
VDD
VEE
INH
Z0
Y1
Z
Z1
Y0
C311 0.1
C302 15p C309 18p
1M
R303
CR-800
X300
10 R307
LC73872M
IC300
7
6
5
4
3
2
1
8
9
10
11
12
13
14
LOAD
SD
ACK
STD
EST
NC
VDD
VSS
NC
OSCI
OSCO
PO
NC
INPUT
EP301
NJM12902V
IC12
11
4
C329 22
C334 0.001
GND
V+
0.1
C327
33k
R316
0.0015 C322
R313 12k
47p C314
R312 390k
R309 1k
4
3
2
1
5
6
7
8
0.022 C307
C304 47p C301 47p
CP17
100k
R326
0.0012 C340
R325 220k
R324 22k
33k R321
CP2
0.1 C333
R319 1M
C328 22p C325 22p
CR-799
X301
R356 1M
R331 100
C323 82p
C310 47p C306 47p C303 47p C300 47p
R300 82k
R301 47k
C318 1
EP300
82k R393 47k R394
R308 18k
18k R310 0.001 C312
1 C313
470k
R507
RDF/FC
DI/O
TDATA
TCLK
VSS
MOD
EXTLMIN
LIMLV
TXINO
TXIN
AGND
AGNDIN
SCLK
DIR
XOUT
XIN
VDD
EXPOUT
RXAFIN
RXAF
RXLPFO
RXINO
RXIN
TEST
12
11
10
9
8
7
6
5
4
3
2
1
13
14
15
16
17
18
19
20
21
22
23
24
AK2346
IC301
NJM12902V
IC2
NJM12902V
IC12
1 C472
47
R508
0.1 C345 68k R335
100k
R333
4.7
C344
560k
R334
0.1 C342
0.001 C343
100k
R336
0.1 C348 68k R339
180p C347 120k R338
C317 1
C316 1
C315 1
R306 220k
R305 100k
R304 56k
0.001 C305
470
R311
13
12
14
1
2
3
4.7
C321
100k
R315
C319 470p
R314 470k
0.039 C337
22k
R329
22k
R322
22k
R320
C330 0.01
0.1
C326
NJM12902V
IC2
R332 22k
C341 0.001
R390 18k
C356 0.1 C355 0.1
R354 27k R353 27k
C346 0.1
4.7
R401
0.1 C349
680
R342
0.1
C351
0.1
C353
R352 33k
3.9k
R351
0.1
C387
M62364FP
IC303
VIN4
VOUT4
VOUT3
VIN3
DI
CLK
LD
VDD
VIN2
VOUT2
VOUT1
VIN1
VIN5
VOUT5
VOUT6
VIN6
D0
VDAREF
RESET
GND
VIN7
VOUT7
VOUT8
VIN8
12
11
10
9
8
7
6
5
4
3
2
1
13
14
15
16
17
18
19
20
21
22
23
24
4p
C117
L25 0.82
µ
C125 7p
C112 56p
C120 0.01
0.22
µ
L24
0.1 C118 0.01 C109
680k R60
1.2k R59
C104 10p
R64 22
C133 0.1
C129 3p
R63 15k
DAN235E
D13
0.1 C152
0.1 C132
DTC144EE
Q16
DTA144EE
Q15
5.6k R69
0.1 C134
C135 0.1
R73 1.5k
47
R72
C136 0.1
0.01
C145
R83 1.2k
CDBC450CX24 X2
R81 100k
10 C143
100p
C146
R82 390k
C147 0.001
TA31136FN
IC3
8
7
6
5
4
3
2
1
9
10
11
12
13
14
15
16
ERJ2GE-JPW R80
C142 47p
C144 0.001
R79 470
C141 0.001
C139 100p
R78 39k
82k
R77
R75 2.2k
C137 120p
C138 120p
220k
R74
AFOUT
QUAD
IFOUT
RSSI
N-DET
N-REC
GND
MIXIN
FILIN
FILOUT
DEC
IFIN
VCC
MIXOUT
OSCOUT
OSCIN
R71 27k
DAN235E
D14
3.9k R76
22k R66
CFWC450G
FI2
0.1
C128
0.1
C131
I O
4.7k
R67
0.1
C130
CFWC450F
FI1
0.1
C127
O I
EP2
TC4S66F
IC6
5 4
1 2 3
2SC4116
Q3
C44 33
R24 2.2k
D3 MA2S111
C40 0.01
470
R135
0.75p
C231
R90 120k
C224 4.7
100
R131
3.3
µ
L47
L48 3.3
µ
15p C222
1SV284 D27 1SV284 D28
HVC376B D30
HVC376B D29
L50 10u
100
R22
3.3
µ
L4 15p C50
0.001 C211
L43 3.3
µ
1SV284 D24 1SV284 D26
HVC376B D5
HVC376B D4
L7 10
µ
R23 100
3.3
µ
L3
90.5n
L51
47p
C223
L6 68n
C37 4p C39 5p
C43 3p
C42 3p
HVC376B D7
HVC376B D6
L8 10
µ
220p
C46
82n
L10
C49 1p
1SV239 D8
1p C48
47p
C45
80.2n
L9
2SC4226
Q5
2SC4226
Q20
2SC4226
Q4
0.001 C61
HVC375B D25
22p C52
33p C59
18p C58
4.7
R29
68p
C55
R28 3.9k R31 1.8k
C225 7p
33p C228
33p C227
ERJ2GE-JPW
R134
33p
C226
R133 1.8k R132 3.9k
C47 3p
33p C57
33p C56
ERJ2GE-JPW
R27
33p
C54
C60 0.01
C62 0.001
R30 1.8k R26 3.9k
DTC144EE
Q1
R21 47k C34 0.1
R18 33k
R20 100k
C30 0.001
220k
R129
C212 0.1
C35 1
C31 0.01 C29 0.01
R17 4.7k
0.0033 C33
R19 100k
LLQ1608-A18N L302
C32 3p
MA2S077 D2 MA2S077 D1
C27 3p
C28 8p C25 8p
4.7k
R15
4.7k
R14
1 C24
1.5k R16
0.001 C18
C22 3p
LLQ1608-A18N L2
C26 8p
C15 15p
C12 8p
4p
C20
LLQ1608-A22N
L56
LLQ1608-A22N
L57
R7 56
2SK880
Q2
1k R10
C23 0.001
R13 10k
560
R25
R11 10k C21 0.001
CP3
R9 100k C19 0.1
47k R8
C14 0.001
C9 0.001
C13 0.001
C217 0.001
1k
R4
C5 47p C3 47p C2 47p C1 0.1
0.001 C10
C219 1
C218 0.1
LMX2352TM
IC1
12
11
10
9
8
7
6
5
4
3
2
1
13
14
15
16
17
18
19
20
21
22
23
24
1.8
µ
L46
C6 0.001 C215 0.1
C216 1
RF_EN
FO/LD
OSCIN
OSCX
GND
FINRF
FINRF
GND
CPORF
VPRF
VCCRF
CUTO
IF_EN
CLOCK
DATA
LE
GND
FINRF
FINIF
GND
CPOIF
VPIF
VCCIF
OUT1
C4 2p
8.2
µ
L1
C8 18p R6 10k
0.001 C16
CR-796
X1
0.1 C11
+
- 7
5
6
NJM12902V
IC2
EP1
R5 560k
C7 47p
10k
R1
270k
R2
560k R3
GND
OUT
VCON
VCC
MAIN UNIT
155MHz
1.4V
155MHz
1.8V
155MHz
0.6V
155MHz
0V
155MHz
2.8V
RX: 2.5V
TX: 0V
5.0V
2.0V
2.0V
1.0V
DIGTAL,COMP ON: 5V
COMP OFF: 0.5V
NARROW: 4.6V
WIDE: 0.1V
0.8V
11-2 MAIN UNIT
11 - 2