Motorola PRO Elite Serie Manual De Servicio página 85

Diagramas de la tarjeta del controlador
C447 R472
0.1uF 36K
AUDIO
C448 R424
0.1uF
36K
UNSWB+
C475
10uF
R473
10
C442
R499 U420 0.1uF
R423
10K TDA8547
470K
20 11
3
16
OUT1POS
IN1POS
17 18
OUT1NEG
IN1NEG
R498
8
15 IN2POS
OUT2POS
10K
R431 14 IN2NEG 13
OUT2NEG
470K
NC1 2
6 NC2 7
SELECT
4 NC3 9
MODE
5 NC4 12
SVR
EXT_MIC
NC5 19
C476
10uF
R436 R421
0 2K
Vdda
(3.3V)
C440
SWB+
4.7uF
C450 R471
20K
NU
Q410
6 4
UMG5
4802245J54
MMQA5V6T1
3
1 2
AUDIO_PA_ENA 4805656W08
EXT_SPKR_SEL
ZMY0130782-O
OPT_SEL2
SWB+
OPT_SEL1
L401
C443
0.1uF
390nH
C445
470pF
R435
2K
R434
330
5V
SCI_RX
C444
470pF
SCI_TX
L400
390nH
RSSI
FLAT_RX_SND
C441
470pF
BOOT_CTRL
INT_MIC
MMBZ5240B
C497 4880140L15
VR432
470pF C496
VR450
5.6V
470pF C495
10V
470pF C494
470pF
Figura 5-15. Diagrama esquemático del amplificador de potencia de audio del controlador
MMBZ5240B 4880140L15
VR446 VR447
10V 10V
VR445
10V
R450
68
J403
1W
20 PIN CONN
C471
470pF C472
470pF
C473 J403-20
470pF
J403-19
J403-18
J403-17
J403-16
J403-15
J403-14
J403-13
J403-12
J403-11
J403-10
J403-9
J403-8
R477
1K
J403-7
J403-6
J403-5
J403-4
J403-3
J403-2
J403-1
J403-21
J403-22
C493
VR433
470pF C490
5.6V
470pF
C492
470pF
C491
MMQA5V6T1 470pF
4805656W08
5-15
x 5pcs.
VR449
VR448
10V
10V
0909059E04
GND
INT_SPK+
INT_SPK-
EXT_SPK+
EXT_SPK-
OPT_B+
EXT_MIC
OPT_SEL_2
OPT_SEL_1
GND
RX_DATA
TX_DATA
GND
RSSI
RX_AUDIO/TX_AUDIO
BOOT_CTRL
NC
MIC
GND
GND
NC
NC