Motorola PRO3150 Manual De Servicio página 66

4-14
C447
R472
0.1uF
3.6K
AUDIO
Vddd
R467
10K
AUDIO_PA_ENA
Figura 4-12a. Diagrama esquemático del amplificador de potencia de audio del controlador
UNSWB+
C475
10uF
U420
R423
TDA8547
47K
20 11
16
IN1POS OUT1POS
17
IN1NEG OUT1NEG
15
IN2POS OUT2POS
14
IN2NEG OUT2NEG
NC1
6
SELECT NC2
4
MODE NC3
5
SVR NC4
NC5
Q433
C476
10uF
C450
0.1uF
Q410
6 4
1 2 3
INT_SPN
C489
1000pF
R473
10
C442
0.1uF
3
18
C486
8
1000pF
13
2
MIC_LINE
7
9
12
SWB+
19
R471
5.6K
R438
0
Vdda
R434
NU
5V
C440
4.7uF
INT_MIC
C471 C472
100pF
C470 100pF
100pF
SPP
SPN
C488
1000pF
C485 C483 C484
100pF 100pF 100pF
R435
2K
Vddd
R436
180K
R495
Q420 100K
R496
Q421
100K
R439
100K
J402
1 J402-1 GND
INT_MIC
2 J402-2
3 J402-3 INT_SPN
4 J402-4 SPP
Speaker/Mic Connector
L400
390nH
MIC
C473
470pF
PTT_MIC
ZMY0130302-A