Panasonic SC-UA7E

58
12.15. Mic Circuit
A
1
2 3 4 5 6 7 8 9 10 11 12 13 14
1 2 3 4 5 6 7 8 9 10 11 12 13 14
C
D
B
E
G
H
F
A
C
D
B
E
G
H
F
D
MIC CIRCUIT
SCHEMATIC DIAGRAM - 14
SC-UA7E/PC/PH/PR MIC CIRCUIT
: +B SIGNAL LINE
MIC 1
MIC 2
: MIC SIGNAL LINE
FOR SC-UA7PC/PH/PR
FOR SC-UA7E
FOR SC-UA7E
FOR SC-UA7E
R1446
0
R1433
0
R1440
0
R1475
100
C1408
50V1
R1464
0
R1466
C1474
0
0.022
1000P
R1451
C1471
R1408 LB1404
J0JBC0000019
C1419
R1407
680
560
R1401
680
C1417
1000P
0.056
C1461
R1409
J0JYC0000656
0
R1463
10K
0.01
C1439
C1473
0.022
1000P
R1457
C1472
R1410
J0JYC0000656
0
R1458
15K
0.01
C1416
R1413
10
150
R1474
C1453
1200P
C1418
560K
0.047
C1420
50V0.1
5
4
2
7
8
1
3
JK1401
220
R1412
R1406
C1402
50V0.1
C1403 R1402
680 1K
R1411
47P
56K
R1405
56K
C1412
16V10
C1411
16V10
0
R1420 R1403
C1415
50V0.1
C1413
50V1
100K
C1401
50V1
C1407
1000P
564 123
91113141210
7
8
IC1401
C1AB00003130
MIC AMPLIFIER
C1465
0.01
C1466
0.01
C1450
0.1
C1455
10V470
C1456
50V1
19
18
20 2823 2422 2725 26 3231 3534 363329 3021
2116 14 12 911 10131517 674538
IC1400
C1AB00004433
MIC AMPLIFIER
C1463
0.1
C1467
0.01
R1461
33K
R1476
0
C1464
16V100
5
4
2
7
1
3
8
JK1402
R1442 270
R1481
0
R1454
0
R1431
0
R1432
0
R1479
0
R1480
...PC/PH/PR
...E
0
0.1
C1443
R1445
150
C1459
C1452
0.056 1200P
R1441
2.2K1K
R1473
560K
C1462
0.047
R1443
C1458
10
C1460
50V0.1
C1469
50V0.1
C1470 16V470
R1460
100
R1444
680
C1457
16V47
C1468
0.01
R1472
R1471
R1468
R1437 100
R1467
R1470
680
0
0
0
0
4
5
1
3
2
7
6
CN1404
0
D1401
DZ2J100M0L
R1436
1K
C1449
0.01
C1451
C1447
0.1
0.01
C1448
33
Q2022
B1AAJC000019
0
R1469 R1459
INT IN
MICNF2 ALC2 MICIN2 NC VDD MIC_OUT2 ALC_DET IN2
ALC1
MICNF1
MICIN1
NC
VREF
IN1
SUM_IN
SEL_OUT
MIC_OUT1
GND V+
MIC_IN
TP_SCL
AGND
TP_SDA
MIC_DET
PW_MUX_+12V
MIC_GND
NC NC NC
DA
LFP2
GND
NC NC
ECHO_IN
NC SCL SDA AD OSC CS DC_3V NC NC
GAIN2
DET
GAIN1
GAIN SW VREF
BUFFIN
BUFFOUT
BUFFGAIN
SENSE
OUT
A
TO
MAIN (CONNECTOR)
CIRCUIT (CN2507)
IN SCHEMATIC
DIAGRAM - 4
C1405
50V1