Controller Audio Power Amplifier Schematic Diagram - Motorola GP328 Plus Service Manual

R499
R423
10K
470K
C447 R472
0.1uF
36K
DIO
R498
10K
R431
470K
C448
R424
0.1uF
36K
C476
10uF
C450
NU
6
1
AUDIO_PA_ENA
ZMY0130782-O
UNSWB+
C475
10uF
R473
10
C442
U420 0.1uF
TDA8547
20 11
3
16
OUT1POS
IN1POS
18
17
OUT1NEG
IN1NEG
15 IN2POS 8
OUT2POS
14 IN2NEG 13
OUT2NEG
NC1 2
6
NC2 7
SELECT
4
NC3 9
MODE
5 NC4 12
SVR EXT_MIC
NC5 19
5V
R436 R421
390nH
0 2K
Vdda
(3.3V)
C440
SWB+
4.7uF
R471 INT_MIC
20K
Q410
4
UMG5
4802245J54
MMQA5V6T1
3
2
4805656W08
EXT_SPKR_SEL
VR432
5.6V
OPT_SEL2
OPT_SEL1
C443 L401
0.1uF 390nH
C445
470pF
R435
2K
R434
330
SCI_RX
C444
470pF
SCI_TX
L400
RSSI
FLAT_RX_SND
C441
470pF
BOOT_CTRL
MMBZ5240B
C497 4880140L15
470pF
C496
470pF
C495
470pF C494
470pF
SWB+
R450
68
1W
C471
C472
470pF
470pF
C473
470pF
R477
1K
C493
VR433
470pF
C490
5.6V
VR450
470pF
10V
C492
470pF
MMQA5V6T1
4805656W08

Controller Audio Power Amplifier Schematic Diagram

4-15
MMBZ5240B 4880140L15 x 5pcs.
VR449
VR446 VR447 VR448
10V
10V 10V 10V
VR445
10V
J403
20 PIN CONN 0909059E04
J403-20 GND
J403-19
INT_SPK+
J403-18 INT_SPK-
J403-17 EXT_SPK+
J403-16
EXT_SPK-
J403-15 OPT_B+
J403-14 EXT_MIC
J403-13 OPT_SEL_2
J403-12 OPT_SEL_1
J403-11 GND
J403-10
RX_DATA
J403-9
TX_DATA
J403-8
GND
J403-7
RSSI
J403-6
RX_AUDIO/TX_AUDIO
J403-5 BOOT_CTRL
J403-4 NC
J403-3
MIC
J403-2 GND
J403-1 GND
J403-21
NC
J403-22 NC
C491
470pF