Motorola PRO Elite Serie Manual De Servicio página 77

Diagramas de la tarjeta del controlador
C447
R472
0.1uF
36K
AUDIO
C448
R424
0.1uF
36K
UNSWB+
C475
10uF
R473
10
5102463J44
R499 U420
R423
10K TDA8547
470K 20 11
3
16
IN1POS OUT1POS
17 18
IN1NEG OUT1NEG
R498
15 8
10K IN2POS OUT2POS
13
R431 14
IN2NEG OUT2NEG
470K
2
NC1
6 7
SELECT NC2
9
4
MODE NC3
12
5
SVR NC4 EXT_MIC
19
NC5
C476
10uF
5V
R436 R421
0 2K
Vdda
(3.3V)
C440
SWB+
4.7uF
INT_MIC
C450
R471
100pF
20K
NU
6
4 Q410
UMG5
4802245J54
MMQA5V6T1
4805656W08
1 2 3
AUDIO_PA_ENA EXT_SPKR_SEL
VR432
5.6V
OPT_SEL2
SWB+
OPT_SEL1
R450
68
C442
0.1uF
C443
L401
0.1uF 390nH
C445
100pF
R435
2K
R434
330
SCI_RX
C444
100pF
SCI_TX
L400
390nH
RSSI
FLAT_RX_SND
C441
100pF
BOOT_CTRL
C497
100pF C496
VR450
100pF C495
10V
100pF
C494
100pF
MMBZ5240B
4880140L15
Figura 5-7. Diagrama esquemático del amplificador de potencia de audio del controlador
MMBZ5240B 4880140L15 x 5pcs.
VR446 VR447 VR448
VR445 10V 10V 10V
10V
J403
1W
C471 20 PIN CONN
100pF C472
100pF
C473
J403-1
GND
100pF
J403-2 INT_SPK+
J403-3
INT_SPK-
J403-4
EXT_SPK+
J403-5
EXT_SPK-
J403-6
OPT_B+
J403-7 EXT_MIC
J403-8
OPT_SEL_2
J403-9 OPT_SEL_1
J403-10 GND
J403-11
RX_DATA
J403-12
TX_DATA
J403-13
R477 GND
1K
J403-14
RSSI
J403-15 RX_AUDIO/TX_AUDIO
J403-16 BOOT_CTRL
J403-17
NC
J403-18 MIC
J403-19 GND
J403-20 GND
VR433 C493
5.6V 100pF C490
100pF
C492
100pF
C491
100pF
MMQA5V6T1 ZMY0130820-O
4805656W08
5-7
VR449
10V
0909059E04