Motorola EM200 Serie Manual De Servicio página 480

Esquemas eléctricos de la tarjeta de circuito impreso 8486577U01 del radio UHF 25-40 W banda 3
D3_3V
R444
10.K
Q415
DNP
D3_3V
R445
10.K
TP408
TEST_POINT
Q414
D3_3V
R422
10.K
R470
10.K
DNP
VS_INT
VS_CS
VS_RAC
TP405
TEST_POINT
DNP
BOOT_EN_IN_CH
R431
10.K 6.80
DNP
R459 VR400
47.K
C490
DNP
1.u
DNP
10K
47K
10K
Q413
47K
3.30
VR402
VSTBY
DNP IN MARLIN+
R466 0.
R467 0.
R468 0.
R469 0.
D3_3V
C422 C423
120.p 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
5
Q5
U405 6
Q6
VS_AUDIO_SEL
MC74HC595A
7
Q7
14 9
VS_GAIN_SEL
SPI_MOSI SERIN SEROUT
C421
22.n
DNP IN MARLIN
FILT_SW_B+
Q403
10K
PROG_OUT-ALARM_4
R401 R460
2.7K 1.5K
47K
Q401
D3_3V
R436
R457
33.K
3.3K
ACCESS_PTT
47K
Q412
47K
R421
220.
SCI_CH
D3_3V
R435 R456
33.K 3.3K
PROG_IN-P6_I
47K
Q411
47K
D3_3V
R434
33.K
R455
3.3K
PROG_IO-P8_I
47K
Q410
47K
10K
Q416
47K
PROG_IO-P8_O
D3_3V
R433
33.K
R454
3.3K
PROG_IO-P12_I
47K
Q409
47K
10K
Q404
47K
PROG_IO-P12_O
D3_3V
R432
33.K
R453
3.3K
PROG_IO-P14_I
47K
Q408
47K
10K
Q405
47K
PROG_IO-P14_O
Circuitos del microprocesador y del controlador 25-40 W UHF3 (465-495 MHz) (hoja 2 de 2)
D3_3V
R458
3.3K
D401
HOOK_CH
R429
100.K
MIC_SENSE
C418
120.p
R430
39.K
R461
220.
MIC_PTT MIC_PTT_CH
D402
C417
120.p
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
R404 0.
PROG_I/0
PROG_IO-ACC_C_8
R403 0.
PROG_I/0
PROG_IO-ACC_C_12
R402 0.
PROG_I/0
PROG_IO-ACC_C_14
R440
10.K
4-17