Icom IC-7410 Service Manual page 94

• MAIN UNIT (MAIN-3)
C3433
270P
R3433
330k
MAIN-1
RB706F
C3432 R3432
13
VOXL C3434 R3434
14
0.027 4.7k
12
0.039 6.8k
I C3452
NJM2058V
D3431
R3409
R3408
MAIN-2
C3401 R3401
UMOD
I C3401
10 10k
1 14
OP+INA OP+INB
2 13
OP-INA OP-INB
3 12
OPOUTA OPOUTB
4 11
EVROUTA EVROUTB
5 10
VCNTA REFIN
6 9
VCNTB VREF
7 8
V+ GND
MIC GAIN MIN NJM2172V
0.03
0.0
MICI_
MICE_
AMOD
USGV
USGV
AMODS
AMODS
UMODS
UMODS
M IGV
M IGV
MICS
MICS
DRIV
DRIV
MAIN-6
ALC
ALC
T8V
T8V
IC3601
TS522ID
8
V+
GND
4
J3621
R3621 C3624
491kHz
T3LO
100 0.001
6
4.7k
2 7
R3606
R3607
MAIN-5 1 5
R3603 R3604 R3605
R3608
3 I C3601
1k 1k
DTIF
I C3601 TS522ID
1k 1k
1k
TS522ID
J3203
R3539
1
HRIF 2
R3431
R3540
4.7k
7.84
5V
R3412 R3413 8V
-12V
680 220 L3411
1000U
10k
4.94
10k
R3411
10k
R3441
C3441 10
180k R3452
R3442
C3442 10
220k
22k
I C3421 2
R3443 R3453
1 16 100 C3443 10 1
Y1 Y1 VDD VDD
2 15 3
Y0 Y0 Y Y R3424 10k 6.8k
3 14 I C3452
Z1 Z1 X X
4 13 NJM2058V
Z Z X1 X1
5 12
Z0 Z0 X0 X0
6 11
MICS
INH A
7 10
UMODS
VEE VEE B B
8 9 AMODS
VSS VSS C C
CD4053B
-12V
4.46
C3635
I C3621
1 8
0.01
LO1 LO2 Q3631
2 7
3SK264
C3621 VCC GND
3 6
R3631
RF2 IF2
0.1 4 5 FI3641
RF1 IF1
39k CFWS455D
C3627 0.01 C3653
TA4107F R3630
I O
0.01
N TCG16
Pwr VR MIN 1.77
Pwr VR MAX 2.44 1.89
0.0 0.0
I C3532 I C3523
IC3523
TS522ID 6 3R3V
NJM072BM
7
5
NJM072BM
8V
-12V
C3543 KDS4148U
D3531
R3547
47P
220 IC3523
R3541 C3545
2
R3552
MAGC_DET
15k 1
8.2k 47P R3548
R3545 10k 3
I C3532 10k 1k
2 220 D3533
R3542 I C3532 D3532 NJM072BM
6
1
KDS4148U
3
7
R3543
5
5.6k TS522ID
TS522ID
4.7k
KDS122
C3453
C3450 IC3452
0.0022 390P
I C3452
C3454 NJM2058V C3458
6
22k 0.0022
0.001 7 NJM2058V
R3455 R3456 R3457 C3459
5 I C3452
R3458
NJM2058V
22k 22k 22k 0.0033
9
10
8
10
C3461
7.9 12.61
13.58
0.0
Q3801
KTC4075
R3801
100
2.2
7.87
R3802
2.2
0.0
3.3k
R3804
3.3k
R3805
3.3k
R3803
LS-554
R3663
10k
Q3802
R3661 5.6
KTC4075
0
L3652
Q3651
3SK264
D3671 IC3675
LR-528
L3672
VCC
6
R3672 GND
C3676
5
OU T
4
L3671 LR-317 15 0.01
HSB88W S
4.88
4.88
0.99
R3675 C3692
0.0
5.6 68P
MAIN-2
3R3V
MDRIF
MAGC_DET
MAIN-5
DTAF
MAIN-2
-12V
8V
5V
14V
MAIN-1
TXS
TXS
1.01
1.01
C3675
IN
1 J3671
GND 0.01 R3679
2 T2LO
GND
3
15
UPC2709TB
J3201
C3694 L3693
HTIF
68P 82N
C3696
15P
10 - 8