Vhf 2 (146-174 Mhz) 25-45 W Dc And Audio Circuits (Sht 1 Of 2) - Motorola Radius CM200 Service Manual
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VHF 25–45 W Band 2 PCB 8486487Z04 / Schematics
IF501
1
COMP_B+
IF503
L120
C1113
C1097
C1088
C1098
C1114
35U02
220pF
1000pF
1000pF
1000pF
220pF
SOURCE
FILT_B +
L500
B+
35U02
C5000
C5061
C5084
C5086
VR500
C5067
C5060
24V
1000pF
0.1uF
100pF
.022uF
1000pF
0.1uF
TP500
BATT_SENSE
TEST_POINT
FILT_SW_B+
1
IF500
1
FILT_SW_B+
R5000
R5031
0
62K
C1085
C5094
C1128
VR504
C5062
R5050
220pF
220pF
C5092
1000pF
13K
0.1uF
3.3V
220p F
FILT_B +
R5020
150K
R5030
33K
EMERGENCY_ACCES_CONN
R5062
Q502
Q506
R5036
10K
EMERGENCY_SENSE
47K
VR503
C5037
R5049
15K
3.3V
0.1uF
TP556
TEST_POINT
D511
1
DC_POWER_ON
D3_3V
R5035
47K
Q504
ONOFF_SENSE
Indirect
Audio
C5104
10uF
6
5
4
S5010
SWITCH
50.K
D3_3V
2
3
1
R5079
R5071
100
2.2K
Smart Fuse Circuit
D500
FILT_B +
R5074
1K
R5039
100K
D513
VR501
IGNITION
R5082
5.1V
51K
R5089
1MEG
Q500
DNP
POWER SUPPLY
spacer for TO-22 0
M6
U501
LM2941T
5
4
VIN
VOUT
2
1
C5005
ON_OFF
ADJ
C5015
R5081
GND
6.34K
0.1uF
100uF
1%
3
C5001
R5038
C5083
C5085
33K
R5001
100pF
.022uF
10uF
1K
1%
TP555
1
TEST_POINT
On/Off for ATE
U514
D502
R5028
100K
C5063
0.1uF
R5029
100K
C5043
1uF
3.3v Digital REGULATOR
R5069
Q505
10K
C5119
R5037
10K
10uF
C5041
C5065
Volume
2.2uF
1000pF
VOL_INDIRECT
C5035
Place near uP
0.1uF
DEMOD
5V
R5083
R5095
270K
C5111
24K
1000pF
R5085
Q503
1MEG
DNP
R5096
10K
VHF 2 (146–174 MHz) 25–45 W DC and Audio Circuits (Sht 1 of 2)
SOURCE
AUDIO
POST_LIMITER_FLAT_TX_AUDIO_RETURN_OPT_BR
9V
IF502
9.3V
9.3V
1
9V
FLAT_TX_AUDIO_INPUT_ACCESS_CONN
C5074
C5095
C5096
C1087
C1034
C1122
C1123
C1124
C1125
C1127
220pF
220pF
220pF
1000pF
220pF
1000pF
220pF
220pF
220pF
100uF
5V RF Regulator
SOURCE
5V
U503
LP2951C
8
1
INPUT
OUTPUT
5V TO LVFRACN
7 FEEDBACK
5
ERROR
3
2
SHUTDOWN
SENSE
For mid_band
6
DNP
5V_TA P
C5006
C5016
C5068
R5002 0
GND
5V_C H
4
1000pF
C5040
C5039
10uF
0.1uF
0.1uF
0.1uF
DNP
DNP
SOURCE
3.3V RF REGULATOR
3V
U508
MC33269D
3
2
IN
OUT
3.3V to IFIC, ASFI
GND
1
C5066
C5070
C5008
C5018
1000pF
0.1uF
1000pF
10uF
RESET
SOURCE
3.3v digital
D3_3V
U510
LP2986ILDX
4 INPUT
5
OUTPUT
D3_3V
8 SHUTDOWN
ERROR 7
6 SENSE
2
FEEDBACK
3
TAP
C5017
C5069
C5007
GND1
GND2
0.1uF
1000pF
47uF
1
9
FILT_B+
D501
R5103
VSTBY
DNP
C512
0
24K
VR502
DNP
47uF
DNP
DNP
R5097
0
NU
C5115
6.8pF
C5117
16pF
DNP
DNP
R5093
R5099
5V
DNP
10K
100K
R5092
8
C5118
2
R5094
1
8
6
R5100
10K
7
0.1uF
3
1MEG
5
4
1MEG
4
C5113
DNP
C5116
U500-1
LM2904
U500-2
220pF
220pF
LM2904
DNP
DNP
R5098
C5114
0
1uF
4-39
DISC
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