Motorola Commercial CM Series

UHF 1-25W PCB 8486684Z01 (Rev.O) / Schematics 4-17
D3_3V
DNP
DNP
SHEET 8 OF 8
73D02968C74-O
DNP
R458
3.3K
VR400
VSTBY
C417
120.p
VR402
3.30
R402
0.
Q401
DNP
DNP
DNP IN NON-DISPLAY MODELS
TO SHEET 1
DNP IN MARLIN+
PROG_IN
PROG_I/O
PROG_I/O
PROG_I/O
EXT_ALARM_OUT
EXT_MIC_PTT
22.n
C421
120.p
C423
100n
C422
D3_3V
TEST_POINT
TP408
1
R470
10.K
TP405
TEST_POINT
1
47.K
R459
0.
R407
R406
0.
R436
33.K
R457
3.3K
14
SERIN
9
SEROUT
16
VCC
D3_3V
1
Q1
2
Q2
3
Q3
4
Q4
5
Q5
6
Q6
7
Q7
10
RESET
MC74HC595A
U405
12
CLK_L
11
CLK_S
13
EN_OE
8
GND
15
Q0
0.
R469
0.
0.
R467
R468
R466
0.
D3_3V
C490
1.u
10.K
R422
R431
10.K
R430
39.K
R429
100.K
D401
220.
R421
R461
220.
120.p
C418
D3_3V
6.80
10.K
R445
10.K
R444
Q415
D3_3V
Q414
Q413
D402
Q405
Q404
Q416
Q403
2.7K
R401
R460
1.5K
FILT_SW_B+
10.K
R440
Q412
R405
0.
33.K
R435
R456
D3_3V
3.3K
Q411
33.K
D3_3V
R434
3.3K
R455
Q410
R404
0.
D3_3V
0.
R403
R433
R454
3.3K
33.K
Q409
D3_3V
3.3K
33.K
R432
R453
Q408
PROG_OUT-ALARM_4
HOOK_CH
MIC_PTT_CH
BOOT_EN_IN_CH
MIC_PTT
MIC_SENSE
SCI_CH
PROG_OUT-ALARM_4
PROG_IO-P8_O
PROG_IO-P12_O
PROG_IO-P14_O
SPI_CLK
VS_AUDIO_SEL
VS_GAIN_SEL
SPI_MOSI
PROG_I-ACC_C_3
PROG_O-ACC_C_4
PROG_I-ACC_C_6
PROG_IO-ACC_C_8
PROG_IO-ACC_C_12
PROG_IO-ACC_C_14
PROG_IO-P14_I
PROG_IO-P14_O
PROG_IO-P12_I
PROG_IO-P12_O
PROG_IO-P8_I
PROG_IO-P8_O
PROG_IN-P6_I
ACCESS_PTT
VS_INT
VS_CS
VS_RAC
UHF1 (403-440MHz) Microprocessor and Controller Circuits (Sht 2 of 2)