Icom IC-F3GT Service Manual page 78

SECTION 12 VOLTAGE DIAGRAM
J5
AXN330C038
16 SCK
15 OPV1
17 SI
14 OPV2
18 SO
13 OPV3
19 CIRQ
12 GND
20 CCS
11 OPT3
21 REM
10 OPT2
22 AFOUT
9 OPT1
to Optional unit 23 DISCIN
8 SIGOUT
24 RXMUTE RMUTE
7 MOWN
25 BEEPOUT
6 BUSY
26 AFONOP
5 AUX
27 MICMUTE BUSY MMUTE
4 MICIN
PTT
28 VCC
3 MICOUT
29 5V
2 PTTOUT
30 GND
1 PTTIN
C562
47 P
VOLIN
VOLOUT
C223 C224
AFOUT
0.01 0.01
MIC
W1
SP1 J6
OPC-963
K036NA500-47 C164
BM028-ASRS-TF
0.001
SP
2 1
1 2
SPEAKER
MC1
C163
KUC3523-040245
0.001
MIC
MIC
R144
33 K
C553
S3
47 P
PTT
JPM1990-2711R
SWITCH
R143
TP76N00N-15F-10KA-2251
R520 330
VOL/ PWR
VOLOUT
SWITCH
R521 330
VOLIN
VCC
C282
0.001 A
R142
(VR)
100
HV
R132
J2
470
HSJ1122-010010 OPT
EP10
BLM11B221SB
MIC
EXT.MIC
EP11
BLM11B221SB
D27
C165
RB706F-40
0.001
AFOUT
SP
EXT.SP
CLONE
4.89 V
J3
HSJ1456-01-220A
C167 C168 C169
47 P 0.001 0.001
L443 BLM21P300S
DC
C675 C283 C173
470 P 0.001 47 [OTHER]
33 D
R534
1 k
BDET
AFOUT
DISCIN
VCC
T5
S5
CPU5
R5
S5
CPU5
R5
S5
CPU5
Tx: 2.19 V
Rx: 2.20 V
VCC
Tx: 4.79 V
4 Vp-p
Rx: 0.00 V
(a)1 kHz, 15 mV mic input)
5V
IC3C
C132 NJM3403AV
R131 0.0056
C554
10
470
470 P
9
Q17
C663
R510 UN911H
0.047
1 k
R105
470 [OTHER]
390 H
C209
D
0.1
C
R137
C133
100
0.1
C147 C154 R130
C563 R516
0.1 10 100 k
47 P
15 k
R104 100 k
C148
TONE
0.01
R125
27 k
Q18
5.01 V
2SB1132 R
VCC
CPU5
R5
S5
Tx: 4.84 V Tx: 0.00 V
R135
Rx: 4.97 V
Rx: 0.19 V
10 k
T5
Q22 Q21
Q19
2SA1577 Q 2SA1577 Q
R260 R261
XP6501 AB
10 k 10 k
6 5 4
R133 4.7
Q20
R141 R139
DTA144 EU
4.7 k 4.7 k
1 2 3
C669
47 P
C162 C161 C174 R134 C159 C160
0.01 0.01 22
2.2 k 470 P 0.01
5V
S5
T5
R5
R515
120 k
R140
R174 S2
100 k
15 k UP DN JPM1990-2711R
1 2 3 P0
Q31
DTC144TU
4 5 6 P1
7 8 9 P2
0 # P3
4.84 V
BDET
12 - 1
Tx: 2.19 V
2.5 Vp-p
C556 Rx: 2.20 V
( a)1 kHz, –1.5 kHz)
47 P
R95
R177
1 M
1 k
R503 R507
C125
10 k 1 k
0.0022
6 1
I/O
8 7 2
C286 R257 O/I
R508
C217 C124 C126 5 3
0.0022 4.7 1 k O/I
0.1 0.01 0.0027
4
C134 I/O
5
180 P R509 IC3B
CONT.B
10 k R94 6
NJM3403AV CONT.C
R93 1 M 7
R176
VEE
3.9 k 27 k R96
47 k
IC4
R108
180 k BU4066BCFV
C665
L441
C674
R109 47 P
C672 1.0 H
47 P
10 k
47 P
VOLIN
VOLOUT
AFOUT
C215
BEEPOUT 0.1
R171
47 k
C677
470 P
4.99 V
VCC
CPU5
IC10
4 5
R164 R150
M62363FP-650C
120 k [F4GT] only
470
1
VIN1
T1 2
VOUT1
T2 3
VOUT2
T3 4
VIN2
5
T4
VDD
6
DAST
LD
SCK 7
CLK
SO 8
DI
9
VIN3
R153 10
VOUT3
470 k 11
VOUT4
3 2 1
12
VIN4
C244
C565
0.01
R152 R154 47 P
R165
C156 C155 470 k 470 k
120 k [F4GS] only
C158 0.1 [OTHER] 10 C236
22 0.01 D
0.01
C311
0.1 D
S5
T5
R220
R5
330 k
R218
100 k I
KR0
120 k [OTHER] 5
KR1
KR2 1
KR3
R219
DTMF 2.2 Vp-p
IC15
100 k I
BEEP 2.5 Vp-p
Q36 120 k [OTHER] TC7S66FU
2SC4116 GR D only
2.59 V
R239 R275
C248 R221
1 k 4.7 k
KS4
0.01 390 k D only
IC14 TC7S66FU
T5
KS3
KS2
R533 100 k
KS1 R5
KS0
5
IC12A
4
R238 R211 Tx: 0.03 V
NJM2904V Rx: 1.99 V
1 k 120 k
R190
R192
22 k
C201 R198
22k R199
3 8
0.1 18 k 47 k
R191
1
22 k
2
4
R240 R197 C200
C222
1 k
220 k 0.033
S1 0.1
R200
47 k
C198
C202
2.2
0.01
4 3
C249 C221 R212 2
S1 C225
0.01 0.039
JPM1990-2711R 0.0068 68 k Q405
XP1213
5 1
78 mVp-p
( a)88.5 Hz CTCSS, –0.35 kHz)
R5
S5
VCC
R97
220 k
C212 R98
0.01 180 k
R114
14
VDD 33 k [OTHER]
R44 R107
13
22 k H
CONT.A 8.2 k [OTHER] 82 k I
R169
12 C213
10 k H
CONT.D 10 k 150 k [OTHER]
11 2.2
I/O
10
O/I
9 C214 R113
O/I R505
8 0.033 68 k
I/O 1 k
C128
R168 R170
R506 C136
1
10 k 10 k
1 k
0.0056
R112
1 M
VOLIN
VOLOUT
AFOUT
R 1.4 Vp-p ( a) 1 kHz, –1.5 kHz)
T 2.3 Vp-p ( a) 1 kHz, 15 mV mic input)
L33
39 H
R519 C123
1 k 0.001
24
VIN8
23
R148
VOUT8
22 47 k
C566
VOUT7 C197
21
VIN7 47 P
0.1
20
GND
19 CTCSS
RESET
18 1.08 Vp-p
VDAREF
17
DO
16 R147
VIN6
15 5 1 12 k
VOUT6 CD OUT
14 2
VOUT5 VDD
4
13 3
VIN5 NC VSS
C144
0.001
IC11
S-80942ANMP-DD6
C230
0.022
IC7
HN58X2432TI [OTHER]
R276
HN58X2464TI O
10 k D only
8 1
VCC A0
7 2 SCK
WP A1
4 Q42
6 3 SI
SCL A2
2 DTC144EU 5 4 SO
SDA VSS
D only DAST
R228 R225 C245
3
C679 0.01
R213 10 k 100 k
CLOUT
47 P D
470
DTCS CLIN
Tx: 1.07 V
R234
840 PLST
Rx: 0.07 V 22 k [OTHER]
720 mVp-p
mVp-p
10 k D NOIS
R231
68 k I
CIRQ
22 k [OTHER]
BUSY
CTDA2
CCS
R230
1
180 k I OPT1
R532
470 k OPT2
R525 56 k [OTHER]
CTDA1
OPT3
1 k
R229
3
560 k I
180 k [OTHER]
CTDA0
2
C250
Tx: 3.46 V
0.01
Q35 Rx: 1.52 V
6
2SC4116 GR
7
R203 R202
5
R227
47 k 47 k
R224
47 k
27 k [OTHER]
IC12B 12 k D
C228 C227
C219
NJM2904V
820 P 0.1 [OTHER]
0.0082
0.047 D
R207
C216
Q38
47 k
0.1
DTC144EE
L442
R517
0.1 H
68 k I
180 k [OTHER]
DUSE
1.2 Vp-p
( a)88.5 Hz CTCSS, –0.35 kHz), 3.7 V P-P(DTCS)
AFOUT
DISCIN
VCC
T5
S5
CPU5
R5
S5
CPU5
VCC
Q15
R115
120 k 2SB1132 R
Tx: 2.20 V
Tx: 2.20 V
Rx: 2.21 V
C135
Rx: 2.20 V
180 P AFON
3.96 V
C137
0.033 I
0.027 [OTHER]
13
0.012 D
14
R120
12 R99
R178 68 k
R117 18 k
R116 3.3 k
1.5 k
IC3D
1 k
NJM3403AV
R159 D26
100 k
DAN202K
R100 C129 R145 C139
2.2 k 15 1 M 0.1
VOLOUT
AFOUT
R182
NTCCM20124AG473JCT
VCC
CPU5
C662
0.1
CTCIN
REMO
R182
R103 R215 C231
C232
12 k 100 k 0.1
0.1
TEMPS
C550
22
R181
R216 100 k
100 k
X2
CR-663
D14 C195
MA77 39 P
R146 R102
C196
10
12 k
470 P
C193 R101 C194
8 P 1 M 12 P
VIN 1
PB0/AN0
2
AVSS
3
TEST
4
X2
5
X1
6
VSS
XIN 7
OSC1
XOUT 8
OSC2
RESET 9
R226
RES
10
1 k
NMI
CSIFT 11
P20/IRQ4/ADTRG
SCK 12
P21/SCK1
SI 13
P22/SI1
SO 14
P23/SO1
DAST 15
P24/SCK3
CLIN 16
P25/RXD
CLOUT 17
P26/TXD
R232 PLST 18
P27/IRQ0
1 k NOIS 19
P17/IRQ3/TMIF
CIRQ 20
P16/IRQ2
BUSY 21
P15/IRQ1
CCS 22
P14
OPT1 23
P13/TMIG
OPT2 24
P12/TMOFH
OPT3 25
P11/TMOFL
R235
680 k
CONT
CTCSS 3 Vp-p
R243 R242 R241
1 M 1 M 1 M
DTCS
2.8 Vp-p
3.2 Vp-p
R194 R195 R196 R273
100 k 100 k 100 k 100 k
R193
D only
100 k
R272
C199
100 k
0.1 D only
6 5
1 2
R121 C1
1 k 0.1
Q16
XP650
IC8
HD64