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Schematic Diagrams, Overlays, and Parts Lists
: Controller Section (403–470 MHz: 8486458Z03, 8415234H09, 450–512 MHz: 8486686Z02 & 450–527 MHz: 8415235H07)
4-9
AUDIO
C475
10uF
UNSWB+
470K
R431
C448
0.1uF
82K
R423
0.1uF
C447
36K
R424
6.2K
R472
10K
R499
6
5
14
15
4
17
16
1
10
R498
10K
TDA8547
U420
VCC2
20
VCC1
11
19
18
OUT1NEG
3
OUT1POS
13
OUT2NEG
8
OUT2POS
SELECT
SVR
IN1POS
IN2NEG
IN2POS
MODE
NC1
2
NC2
7
NC3
9
NC4
12
NC5
GND1
GND2
IN1NEG
C476
10uF
SWB+
5.6K
R471
C450
NU
3
Q410
2
1
4
6
EXT_SPKR_SEL
AUDIO_PA_ENA
R473
10
C442
0.1uF
100pF
C444
R435
2K
330
R434
0.1uF
5V
EXT_MIC
C443
L401
390nH
C445
100pF
R436
0
4.7uF
C440
R421
2K
Vdda
INT_MIC
C441
100pF
390nH
L400
BOOT_CTRL
FLAT_RX_SND
SCI_RX
SCI_TX
RSSI
VR432
5.6V
OPT_SEL2
OPT_SEL1
SWB+
68
R450
100pF
C495
C496
100pF
10.0V
VR450
100pF
100pF
C497
C494
VR433
5.6V
100pF
C490
C492
100pF
C491
100pF
C493
100pF
M401
100pF
C471
100pF
C473
100pF
C472
R477
1K
10.0V
VR449
VR445
10.0V
VR448
10.0V
10.0V
VR447
VR446
10.0V
J403
20 PIN CONNECTOR
J403-1
J403-7
J403-6
J403-4
J403-9
J403-8
J403-5
J403-3
J403-2
J403-17
J403-16
J403-19
J403-20
J403-15
J403-11
J403-18
J403-13
J403-12
J403-10
J403-14
GND
INT_SPK-
EXT_SPK-
OPT_B+
EXT_MIC
OPT_SEL_2
OPT_SEL_1
GND
Rx_DATA
GND
Tx_DATA
RSSI
Rx_AUDIO/Tx_AUDIO
BOOT_CTRL
NC
MIC
GND
GND
6.8V
VR460
6.8V
VR434
Figure 4-7:
UHF Controller Audio PA Schematic Diagram
Содержание PR860
Страница 1: ...PR860 Two Way Portable Radio Detailed Service Manual ...
Страница 2: ......
Страница 5: ...iv Notes ...
Страница 9: ...viii Table of Contents Notes ...
Страница 13: ...Notes xii List of Figures ...
Страница 17: ...1 4 Introduction Radio Model Information Notes ...
Страница 51: ...2 34 Theory of Operation Voltage Control Oscillators VCO Notes ...
Страница 81: ...4 4 Schematic Diagrams Overlays and Parts Lists Flex Layout Notes ...
Страница 193: ...4 116 Schematic Diagrams Overlays and Parts Lists Low Band Section Notes ...
Страница 196: ......