Circuitos Del Microprocesador Y Del Controlador Vhf2 (146-174 Mhz) (Hoja 2 De 2) - Motorola EM200 Serie Manual De Servicio

Esquemas eléctricos de la tarjeta de circuito impreso 8488977U01 del radio VHF 1-25 W banda 2 (rev. P9)
D3_3V
R444
10.K
D3_3V
R445
10.K
D3_3V
R422
10.K
DNP
R470
10.K
VS_INT
VS_CS
VS_RAC
TP405
TEST_POINT
DNP
DNP
Q415
DNP
BOOT_EN_IN_CH
R431
DNP
DNP 10.K VR400
C490
6.80
R459
1.u
47.K
Q414
Q413
VR402
3.30
VSTBY
DNP IN MARLIN+
R466 0.
R467 0.
R468 0.
R469 0.
D3_3V
C422 C423
1n 100n
15
Q0
PROG_OUT-ALARM_4
11 1
SPI_CLK CLK_S Q1 PROG_IO-P8_O
12 2
CLK_L Q2
PROG_IO-P12_O
13 3
EN_OE Q3 PROG_IO-P14_O
10 4
RESET Q4 VS_AUDIO_SEL
5
U405 Q5
6
MC74HC595A Q6
7
Q7
VS_GAIN_SEL
14 9
C421 SPI_MOSI SERIN SEROUT
22.n
GND
8
DNP IN MARLIN
Q403
PROG_OUT-ALARM_4
R401
2.7K
D3_3V
R436 R457
33.K 3.3K
Q412
ACCESS_PTT
SCI_CH
R421
220.
D3_3V
R435
R456
Q411
33.K
3.3K
PROG_IN-P6_I
D3_3V
R434
33.K
R455
Q410
3.3K
PROG_IO-P8_I
Q416
PROG_IO-P8_O
D3_3V
R433
33.K
R454
Q409
3.3K
PROG_IO-P12_I
Q404
PROG_IO-P12_O
D3_3V
R432
33.K
R453
Q408
3.3K
PROG_IO-P14_I
Q405
PROG_IO-P14_O

Circuitos del microprocesador y del controlador VHF2 (146-174 MHz) (hoja 2 de 2)

FILT_SW_B+
R460
1.5K
Q401
D3_3V
R458
3.3K
D401
HOOK_CH
R429
100.K
MIC_SENSE
C418
R430
1n
39.K
MIC_PTT
MIC_PTT_CH
R461
220.
D402
C417
1n
R440
10.K
R406 0. EXT_ALARM_OUT
PROG_O-ACC_C_4
R407 0. EXT_MIC_PTT
PROG_I-ACC_C_3
R405 0. PROG_IN
PROG_I-ACC_C_6
0.
R404 PROG_I/O
PROG_IO-ACC_C_8
0.
R403 PROG_I/O
PROG_IO-ACC_C_12
0.
R402 PROG_I/O
PROG_IO-ACC_C_14
73D02968C63-0
SHEET 8 OF 8
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