Circuitos Del Microprocesador Y Del Controlador 1-25 W Uhf2 (438-470 Mhz) (Hoja 2 De 2) - Motorola EM200 Serie Manual De Servicio

Esquemas eléctricos de la tarjeta de circuito impreso 8488978U01 del radio UHF 1-25 W banda 2 (rev. P9)
D3_3V
R444
10.K
DNP
DNP
DNP
Q415
R431
DNP
DNP 10.K VR400
6.80
C490
R459
47.K 1.u
D3_3V
R445
10.K
TP408
TEST_POINT
Q414
D3_3V
R422
10.K
Q413
VR402
R470
3.30
10.K
DNP IN MARLIN+
R466 0.
R467 0.
VS_INT
R468 0.
VS_CS
0.
R469
VS_RAC
D3_3V
C422 C423
120.p 100n
16
VCC
15
Q0
11 1
Q1
SPI_CLK CLK_S
12 2
CLK_L Q2
13 3
EN_OE Q3
10 4
RESET Q4
5
Q5
U405
6
Q6
MC74HC595A
7
Q7
14 9
SERIN SEROUT
SPI_MOSI
GND
C421
8
22.n
DNP IN MARLIN
R460
Q403 R401
2.7K 1.5K
PROG_OUT-ALARM_4
TP405
Q401
TEST_POINT
D3_3V
BOOT_EN_IN_CH
R436
R457
33.K
Q412
3.3K
ACCESS_PTT
SCI_CH
R421
220.
D3_3V
R435
R456
33.K
Q411 3.3K
PROG_IN-P6_I
D3_3V
R434
33.K
R455
Q410 3.3K
PROG_IO-P8_I
Q416
VSTBY
PROG_IO-P8_O
D3_3V
R433
33.K
R454
Q409
3.3K
PROG_IO-P12_I
Q404
PROG_IO-P12_O
D3_3V
PROG_OUT-ALARM_4
R432
33.K
PROG_IO-P8_O
PROG_IO-P12_O
PROG_IO-P14_O
R453
Q408
3.3K
PROG_IO-P14_I
VS_AUDIO_SEL
VS_GAIN_SEL
Q405
PROG_IO-P14_O

Circuitos del microprocesador y del controlador 1-25 W UHF2 (438-470 MHz) (hoja 2 de 2)

FILT_SW_B+
D3_3V
R458
3.3K
D401
HOOK_CH
R429
100.K
MIC_SENSE
C418
120.p
R430
39.K
MIC_PTT
MIC_PTT_CH
R461
220.
D402
R440 C417
10.K
120.p
R406 EXT_ALARM_OUT
0.
PROG_O-ACC_C_4
R407 EXT_MIC_PTT
0.
PROG_I-ACC_C_3
R405 PROG_IN
0.
PROG_I-ACC_C_6
R404
0. PROG_I/O
PROG_IO-ACC_C_8
R403 0. PROG_I/O
PROG_IO-ACC_C_12
R402 0. PROG_I/O
PROG_IO-ACC_C_14
73D02968C74-O
SHEET 8 OF 8
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