Motorola Radius CM200 Service Manual page 113

VHF 25–45 W Band 1 PCB 8486487Z03 / Schematics
TP408
TEST_POIN T
1
RESET
MODA_LIR
MODB_VSTBY
VS_INT
VS_CS
VS_RAC
PI2
PI3
PI4
D3_3V
R444
10K
TP405
TEST_POINT
DNP
1
R431
Q415
BOOT_EN_IN_CH
D3_3V DNP
10K
VR400
C490 DNP
R459 6.8V
47K
1uF
DNP
R445
DNP
10K
Q414
D3_3V
R422
10K
VR402
3.3V
Q413
R470
10K
DNP
VSTBY
R466
DNP
R467
DNP
R468
DNP
R469
DNP
D3_3V
C423
C422
0.1uF
1000pF
16
15
VCC PROG_OUT-ALARM_4
Q0
11 1
PROG_IO-P8_ O
CLK_S
SPI_CL K Q1
12 2
CLK_L PROG_IO-P12_O
Q2
13 3
EN_OE PROG_IO-P14_O
Q3
10 4
RESET
Q4
5
Q5 VS_AUDIO_SEL
Q6
C421
7
U405 Q7 VS_GAIN_SEL
.022uF
MC74HC595A
14
SERIN
SPI_MOSI
9
SEROUT
GND
8
FILT_SW_B+
Q403
R401 R460
PROG_OUT-ALARM_4
2.7K 1.5K
Q401
D3_3V
R436
R457
33K
3.3K
ACCESS_PTT
Q412
R421
SCI_CH
220
D3_3V
R435 R456
33K 3.3K
PROG_IN-P6_I
Q411
D3_3V
R434
33K
R455
3.3K
PROG_IO-P8_ I
Q410
Q416
PROG_IO-P8_O
D3_3V
R433
33K
R454
3.3K
PROG_IO-P12_I
Q409
Q404
PROG_IO-P12_O
D3_3V
R432
33K
R453
3.3K
PROG_IO-P14_I
Q408
Q405
PROG_IO-P14_O
VHF 1 (136–162 MHz) 25–45 W Microprocessor and Controller Circuits (Sht 2 of 2)
D3_3V
R458
3.3K
D401
HOOK_CH
R429
100K
MIC_SENSE C418
R430 1000pF
39K
R461
MIC_PT T MIC_PTT_CH
220
D402
C417
1000pF
R406 0
EXT_ALARM_OUT
PROG_O-ACC_C_4
R407 0
EXT_MIC_PTT
PROG_I-ACC_C_ 3
R405 0
PROG_I N
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
R440
10K
4-17