Icom IC-F620, Service Manual

Page: 33 / 36

MAIN
UNIT
(2)
J1
to
MIC
to
Optional
unit
JACK
J2
GND
PWR
LINH
LCS
LCK
LSO
AFVI
CLI
GND
MIC
8V
5V
KR0
KR1
KR2
FSW
HORN
CLO
PTT
AFO
8V
CL0
AFO
PTT
FRONT UNIT
J2
J1
PTTI
PTTO
MCOT
MCIN
AUX
BUSY
MDWN
SIG
OPT1
OPT2
OPT3
GND
OPV3
OPV2
OPV1
GND
5V
VCC
MMUT
AFON
BEPO
RMUT
DET
DISC
REM
CCS
CIRQ
SO
SI
SCK
BUS LINE1
R138 47k
R139 47k
R140 47k
8V
5V
R178 330k R177 330k R176 330k R175 1M R174 1M R173 1M
R141 100k R142 100k
C237 47p
C
APST
SI
AMSK
SO
AFCL
CCS
OPT3
OPT2
DISC
OPT1
DET
SIGOUT
RMUT
BEPO
BUSY
AFONO
MMUT
MCIN
MCOT
PTTO
AFO
MIC
PTT
GND
CLO
CLI
HORN
AFVI
FSW
LSO
VCC
GND
MDI
GND
XCTS
RES
XRXD
XRTS
5V
XTXD
PGO2
GND
PGI3
PGO1
PGI1
PGI2
INRXD
IGSW
8V
NTXD
KR2
LCK
KR1
LCS
KR0
LINH
5V
PWR
8V
GND
BUS LINE2
R296 1k
R295 1k R293 1k
R294 1k
C207 0.1
R316
100k
HANG
MICI
AFO
R284
1k
R144 100k
C219 47p C228 47p C227 47p C220 47p C217 47p C229 47p C199 47p C231 47p
C224 47p C206 47p C353 47p C204 47p C235 47p C354 470p C214 47p C209 47p
R145 100k
POSW
LINH
LCS
LSCK
KR0
KR1
KR2
FSW
LSO
AFVI
CLI
HANG
HORNO
CLO
1
3 5
2
4 C367 47p
R108
22k
R307
22k
BAL
VAG
R306 100
C366
0.1
C162 0.001
IC11
TC75S51F
R305
220k
C372
2.2
REF C378
0.001
R107
47k
D21 HVC362
C161
100p
C160 9p
X2
CR-671A
R106 82k
R110 47
Q19
2SC4215
R105 47k
D20 MA2S111
C157 100p
C158 100p R104 1.2k
R209
NTCG20
C203 0.1 R210 100k
TEMP
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
LOOK
TEST
VDD
GND
RFIN+
RFIN-
GNDCP
PHP
PHI
GNDCP PHA
AUXIN
VDDCP
RSET
REFIN-
REFIN+
CLOCK
DATA
STROBE
PON
IC4
SA7026DH
C136 0.001
R88 15k
R102 15k
R109
1k
C144 0.01
C155 0.1 C152 47p C153 47p C154 47p
UNLK
PLST
SO
C156
47p
C159 0.1
L29 1.8
µ
C140
0.1
C314 0.01
C300 0.001
LVIN
R101 1k
C143 0.001
Q18
2SK880
R100 47k
C141 0.001
CP1
R99
1k R92
120k
R91 22k[L] 47k[M],[H]
C132 0.001
R89
10k
C147 0.33 C130 100p
R96 4.7k
R97
10
R95
470
C146 0.047
C358 47p
R90
100k
MOD
R291 100k
C350 1
R292
8V
5V
VCC
8.2k
C145
47p
8V
5V
D19 MA2S111
C148 10
R98 2.2k
Q17
2SC4116
R93 47
R94 47
L27
1.8
µ
C125 7p C133 10p
D16 HVC350B
C124 6p[L] 2p[M],[H]
C127 3.5p[L]
L25 11n
C123
12p[L]
8p[M],[H]
C121 10p[L],[H] 8p[M]
C122 6p[L],[H] 5p[M]
R82
4.7
R84
3.3k R83
3.3k
Q13
2SC4226
L24 1.8
µ
C119 0.001
C120 47p
C139 0.1
EP1
L28
1.8
µ
C128 7p C134 6p
D17 HVC350B
L26 11n
C126
6p
C114 8p
C115 6p
R81
10
R85
3.3k
R79
3.3k
L23 1.8
µ
C117 470p
C116 0.001
R78
560
R80
1k
C129 0.5p
C299 7p[L] 6p[M],[H] C298 7p[L] 6p[M],[H]
L32
18n[L]
15n[M],[H]
D18 MA368
Q15
XP1214
5
4
1
2
3
C118
0.5p
C113
0.5p
R77 10k
C387 0.1
Q16
DTC144EU
C111 47p
C110 470p
R76 220
C104 0.001
R74 100k[L],[M]-45W 68k[M]-25W,[H]
R72 470
Q11
2SC5107
R73 220
L22 27n
Q12
2SC5107
R75 150k
C105 0.001
C103
2p
C102
12p R71
33
C301 470p R234 47k
Q10
2SC5107
R70 100
L21 27n[L] 22n[M],[H]
C109 0.001
C100
5p D14
MA77
C108
0.01
R68 1k
R67 10k
C98
2p[25W]
5p[45W]
R66 100k
C99 0.001
Q9
2SC5107
R65 220[25W] 150[45W]
C107 0.001
L20 27n[L] 22n[M],[H]
C101 0.001
C93
4p[25W]
3.5p[45W]
C400
0.5p
C96 0.001
C97 47p
L19 18n[L] 15n[M],[H]
R61 56[25W] 150[45W]
Q8
2SC3356
C106 47p
C376 0.001
C92
5p
R309 330[25W] 820[45W]
R310
18[25W]
5.6[45W]
R311 330[25W] 820[45W] C90 7p[L] 6p[M],[H]
C89 7p[L] 6p[M],[H]
L18
18n[L]
15n[M],[H] IN VCC1 VCC2 OUT
6 5
4 3 2 1
C138 0.001
IC3
RA30H4047M[L]
RA30H4452M[M]-25W,[H]
RA45H4452M[M]-45W
C368 2.2
C87 0.001
C86 47p
C83 3p[25W] C355 4p[45W] C356 7p[45W]
C401 22p
C84 47p
C85 0.001
C91 33[L] 22[M],[H]
L16
LA-232[25W]
LA-382[45W]
C82 4p[25W]
FI4
NFM60R-
20T152
FI5
NFM60R-
20T152
[45W]
FI3
NFM60R-
20T152
C380 0.001
C379 22p
C381 22p
C382 0.001
L37 0.1
µ
R9 220 R8 220
L5 LW-25
C12 470p
C375 0.001
C13 47p
D2
UM9401F[25W]
D3
XB15A407[45W]
L4 15n
C15 8p
T8V
C365 5p
R69 4.7k
D15
MA77
R50 10k
R235 1k
C303 0.001
C302 10p
R8V
ANT
C304
10p
Q34
2SC4116
R237 680k
L35 0.22
µ
R236 1.2k
C309 0.01
C305 56p
C306
4p
C307 7p
L33 0.82
µ
R62 12k[25W] 22k[45W]
C374 5p
C95 0.001
C94 47p
C383 22p C384 22p
TXC
T8V
T8V
R8V
R8V
5V
5V
HV
C385 0.001
C396 22p C397 220p
C398 0.001
C393 22p C394 220p
C395 0.001
C390 22p C391 220p
C392 0.001
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
OSCIN
OSCOUT
MIXOUT
VCC
IFIN
DEC
FILOUT
FILIN MIXIN
GND
N-REC
N-DET
RSSI
IFOUT
QUAD
AFOUT
IC1
TA31136FN
R44
47k
C70 220p
C71 0.1
C69 220p
C371
0.01
R308 330
R45
33k
R46 1.5k R47 3.3k
O I
FI2
ALFYM450F=K
C308 3p
5V
T8V
R39 47
C67 0.001
C75 10
SQIN
R38 100k
NOIS
R36 3.9k
X1 CDBC450CX24
C61
100p
C62
82p
C348 0.001
C65 0.001
RSSI
C64 470p
C66 0.001
Q5
Q51
2SC4116[45W]
2SC4116
R41 47k
R42
47k
C72 0.1
Q6
DTA144EU
C9 6p C8 2p
C7 7p[L] 6p[M],[H]
C6 3p
C16
2p[L]
1p[M],[H]
C14
47p[25W]
C357
47p[45W]
L3
LA-382 L2
LA-232
C5 0.001
C4 6p
R3 47[25W] 150[45W] C3 0.001
C2 7p C1 7p
L1
LA-232[25W]
LA-382[45W]
R1 100k
R7 100[25W] 150[45W]
R6 100
D11 MA728
R4 100
D1 MA728
R5 100
C11 0.001 C10 0.001
R35 1k
R8V
T8V
R8V
R290 470
C60 0.001
R34 120k
C58
0.001
R33
150
R32
100
Q4
2SC4215
FI1
FL-313 [USA], [GEN]
FL-335 [EUR]
C56 22p
L13 0.27
µ
C52 47p
R31 100
R30 1k
R29 120
C50 0.001
C48 22p
C54 0.001
C51 0.001
C53 0.01
Q3
3SK272
R25 4.7k
C45 8p[L] 10p
[M],[H]
D10 HVC350B
C44 3.5p[L] 2.5p
[M],[H]
L11 12n[L] 10n
[M],[H]
R23 220k
R24
10k
C47 0.001 C46 0.001
L38
18n C49
5p
L12 33n
C364 7p C363 7p
C38 0.001
R289 100
C369 47p
C37 0.001
R20 1k
L9 12n[L] 10n
[M],[H]
C36 3p[L] 2p[M],[H]
T4
C39 8p[L] 10p
[M],[H]
D9 HVC350B
R21 220k
C42 0.001
R22
10k
C43 0.001
T3
R17 1
Q2
3SK293
C32 0.001
C370 47p
R16 150 R15 82k
L8 12n[L] 10n
[M],[H]
C35 0.001
R19 220k
R18 10k
R208 4.7
C59 0.1
C34 0.001
R10 1.8k
Q1
2SK1829
C30
5p
C29 3p[L] 1p[M],[H]
C28 0.001
R14
10k
C27 0.001
R13 220k
D4 HVC350B
C26 8p[L] 10p
[M],[H]
T2
RSSI
R206
470k
R207 220k
D25 MA2S111
C22
0.75p
L7 15n[L] 10n
[M],[H]
C21 1.5p[L] 0.75p
[M],[H]
C23 0.001
R12
10k
C24 0.001
R11 220k
D8 HVC350B
C20 5p[L] 10p
[M],[H]
T1
L31 47n
C18 4p[L] 3p[M],[H]
D6 MA77
D5 MA4PH224
C17 10p[25W] 9p[45W]
C19 0.001
L6
15n
C81 0.001
R58
47[L]
100[M],[H]
C77 0.001
R53 100
C76 0.01
4
2
3
1
5
R56
150k
C79
0.22[L]
0.1[M],[H]
D32
MA2S111
C388 1
C403 0.001 [45W]
R325 PTH9C32 [45W]
IC2
TC75S51F
C80 0.047[L] 0.1
[M],[H]
R59 10k[25W] 12k
[45W]
R52 10k
D33 MA2S111
T4
R57
10k C78
0.001
R54
10k
C33
47p
TMUT
R55
2.2k[L]
1k[M],[H]
R323
100k
[45W]
C313 47p
R2
100
R43
470
REM
DET NWC
NWC
VCC
VCC
C236 47p
C247 0.001 C239 0.001 C238 0.001
C215 47p
J9
J8
XTXD XRXD XRTS XCTS
RES MD1
R155
100k
NTXD
NRXD
R151 100k R152 100k
Q44
DTC144EU
IGSW
D36
DAN222
PGI1
D35
DAN222
PGI2
R153 100k
PGI3
R158 10k
R157 10k PGO1
PGO2
SCK
SCK
CIRQ
D34 MA2S111
R232 56
C142 0.001
C74 0.1
C41
22p C40
0.75p
EP2
R86
220k
MICE
MIC
GND
CLI
MAIN UNIT (1)
C205 47p
R143
100k
R154
100k
Q42
DTC144EU
D37
DAN222
C137 0.001
C150
47p
C297 4p[L] 12p[M],[H]
Q14
2SC4226
R40
1.5k
C63 0.001
R37 3.3k [N/W] 4.7k [N/M]
C25
2.5p
C389 33[L] 22[M],[H]
T8V R8V 5V
R324 47k
LOCK:5.0V
UNLK:0V
1.2Vp-p
(15.3MHz)
5.0V
6.9V
TX:3.0V
RX:0V
TX:3.0V
RX:0V
TX:0V
RX:5.0V
800mVrms
5.8V
5.1V
5.5V
TX:0V
RX:2.9V
TX:2.9V
RX:0V
TX:2.1V
RX:2.2V
TX:6.5V
RX:0V
TX:5.4V
RX:0V
3.0V
WIDE:0V
NAR:5.0V
4.9V
TX:0V
RX:5.4V
TX:0V
RX:7.3V
TX:0V
RX:0.8V
MEASUREMENT CONDITIONS
VOLTMETER
Amplitude(Oscilloscope):100MHz
Frequency:440MHz
Transmission:25W
TX:0V
RX:7.3V
TX:0V
RX:1.2V
TX:0V
RX:8.0V
TX:3.6V
RX:0V
TX:0V
RX:5.0V
11 - 2