8-66
Schematics, Boards Overlays, and Parts Lists
: Main Board Block: 700–800 MHz (84012501002)
Figure 8-37. Automatic Level Control Circuit
D
DC_LIN_3V
DC_LIN_5V
IN
IN
IN
DIG_CTRL_ATTH
IN
ANA_CTRL_ISET
DIG_CTRL_I_LIMIT
IN
IN
.022UF
33PF
12K
0
.022UF
4.7K
C1169
C1138
C1137
R1172
R1171
R1160
IN
0
R1202
DC_LIN_1_875V_D
DC_LIN_1_85
IN
A1
A2
VCCA
VCCB
GND
B1
B2
DIR
SN74LVC2T45
U1137
DC_LIN_5V
A2
A1
D1
D2
C2
B2
C1
B1
HIGH
ADDED FOR DEFAULT
33PF
33PF
10K
33PF
C1163
C1168
C1164
R1101
DIG_SPI_CLK
ANA_CTRL_VSET
IN
IN
A1
A2
VCCA
VCCB
GND
B1
B2
DIR
SN74LVC2T45
U1138
DC_LIN_1_875V_D
DIG_DATA_SPI_MOSI
DIG_CTRL_TX_INH
TX_INH
DC_LIN_5V
A2
A1
D1
D2
C2
B2
C1
B1
IN
IN
DC_LIN_5VREF
CTGND
VOUTA
VDD
VOUTB
DIN
SCLK
GND
VOUTC
SYNC
VREFIN_VREFOUT
.1UF
75K
30.1K
AD5624R
.1UF
C1165
U1125
C1116
R1122
R1121
DAC_C
DC_LIN_5V
10
5
4
2
1
9
6
7
3
8
G1
VOUTD
A1
A2
VCCA
VCCB
GND
B1
B2
DIR
SN74LVC2T45
U1139
DC_LIN_1_875V_D
DC_LIN_5V
A2
A1
D2
C2
B2
C1
B1
IO49
TXH_5V
74LVC1G08YZP
U1147
TXH
OUT
VCC
GND
VCC
GND
74LVC1G08YZP
74LVC1G32YZP
33PF
33PF
33PF
74LVC1G32YZP
33PF
C1167
C1166
C1171
C1170
U1147
U1146
U1146
DC_LIN_1_875V_D
DIG_GPIO49
DIG_DMCS
C2
B1
A1
A2
C1
C2
B1
A1
A2
C1
IN
IN
D1
100
100
R1104
R1105
COUPLER
RVS
FWD
33NH
100
6.8PF
6.8
1000PF
DNP
5.6PF
C1142
R1168
C1125
R1106
C1104
L1101
ACG3
ACG2
ACG1
GND
V1
VDD
V2
V3
RF1
NC1
NC2
NC4
NC3
RF2
NC5
NC6
NC7
HMC468LP3E
U1112
16
15
14
13
11
2
12
10
9
8
4
3
1
17
7
6
5
3300PF
1000PF
C1126
C1117
100
100
.01UF
C1118
R1114
DC_LIN_5V
R1115
33PF
.01UF
C1156
C1106
DC_LIN_5V
10K
.01UF
LPV321M7X
36K
R1164
C1119
R1125
U1113
DC_LIN_5V
25
4
1
3
POS
GND
VOUT
LPV321M7X
LM50
16K
U1148
R1126
U1103
DC_LIN_5V
25
4
1
3
2
1
3
33PF
.01UF
200
C1157
R1165
C1120
DC_LIN_5V
10K
200
LPV321M7X
R1166
R1167
U1114
25
4
1
3
20K
10K
R1127
R1128
VCC
GND
M74VHC1GT86
33PF
C1158
U1121
DC_LIN_5V
5
3
M74VHC1GT86
U1121
4
2
1
4700PF
.01UF
LMV7275
10K
C1140
C1128
R1137
U1126
DC_LIN_5V
25
4
1
3
IN
NO
COM
GND
10K
TS5A3159
10K
R1182
R1178
U1127
DC_LIN_5V
5
1
3
6
2
4
NC
V_POS
LPV321M7X
.01UF
10K
0
4700PF
.1UF
U1142
C1127
C1123
C1124
R1136
R1135
DC_LIN_5V
25
4
1
3
RFIN
ENBL
VSET
FLTR
VPOS
COMM
NC
VAPC
GND
AD8315
51
.1UF
0
R1180
R1124
C1111
U1105
DC_LIN_5V
3
8
7
1
6
9
4
2
5
NC
150K
10K
10K
.01UF
R1162
R1163
C1129
R1152
U1131
DC_LIN_5V
25
4
1
3
LMV7275
VCC
GND
74LVC1G08YZP
33PF
C1159
U1119
DC_LIN_3V
A2
C1
74LVC1G08YZP
U1119
TXH_1
TX_INH
C2
B1
A1
IN
22K
22K
MUN5212T
100K
NTR1P02T1
R1102
Q1101
Q1103
FIL
2
3
1
2
1
3
VOUT
GND2
VIN
GND1
DNC1
DNC2
NC
NC
LT1790
.1UF
C1160
U1150
SW_B+
6
4
2
1
5
3
IN
1UF
C1161
DC_LIN_5VREF
.02
E1101
R1103
2
1
VINPOS
VINNEG
VPOS
GND
OUT
510K
.01UF
INA138
U1101
R1141
C1103
DC_LIN_5V
5
3
4
1
2
10PF
68.1K
C1139
R1108
IN
NO
COM
GND
TS5A3159
U1144
DC_LIN_5V
5
1
3
6
2
4
NC
NC
V_POS
340K
0
80.6K
R1175
R1169
R1170
DC_LIN_5V
LPV321M7X
U1143
DC_LIN_5V
25
4
1
3
100K
100K
100K
100K
LMV841
33PF
C1162
R1140
R1138
R1139
R1142
U1129
DC_LIN_5V
25
4
1
3
100K
100K
100K
LMV841
100K
R1143
R1146
R1144
R1145
U1130
DC_LIN_5V
25
4
1
3
LPV321M7X
10K
LPV321M7X
.01UF
270K
U1141
R1158
R1110
C1108
U1104
DAC_C
DC_LIN_5V
25
4
1
3
25
4
1
3
BAND
.01UF
10K
R1151
C1112
BAND
VCC
GND
SN74LVC1G00
SN74LVC1G00
U1128
U1128
DC_LIN_5V
A2
C1
C2
B1
A1
ANA_RX_FE_FILT_VTUNE
TX_7V_1
OUT
OUT
PR
VCC
GND
Q*
D
CLR
CP
Q
VCC
GND
74LVC1G08YZP
74LVC1G08YZP
NL17SZ74
.01UF
U1136
U1136
C1130
U1132
DC_LIN_5V
DC_LIN_5V
C2
B1
A1
A2
C1
8
3
5
7
4
2
1
6
IN
NO
COM
GND
TS5A3159
.47UF
1K
0
C1141
R1176
R1177
U1133
VC
DC_LIN_5V
5
1
3
6
2
4
NC
V_POS
10K
10K
R1174
R1154
PA_OFFSET
VCTRL
OUT
10K
R1198
RF_OUT
RF_OUT
CONN_P
J102
4
3
2
1
5
OUT
3PF
1.65NH
C1122
L1117
VCC
GND
74LVC1G32YZP
U1149
DC_LIN_3V
A2
C1
75K
10K
R1116
R1117
74LVC1G32YZP
U1149
TX_SWI
A1
C2
B1
OUT
TXH_1
RFIN
VM
VOS
VCC
GND
VOUT
LTC5532
U1106
5
3
4
6
1
2
BAND
.01UF
33PF
51
100PF
DNP
R1112
C1110
C1107
C1113
DC_LIN_3V
6.8NH
68
5.6PF
R1107
C1105
L1102
FIL
OUT
Summary of Contents for Astro APX 3000
Page 1: ...APXTM TWO WAY RADIOS APX 3000 DETAILED SERVICE MANUAL ...
Page 2: ......
Page 4: ...Notes ...
Page 6: ...vi Document History Notes ...
Page 10: ...x Table of Contents Notes ...
Page 12: ...xii List of Tables Notes ...
Page 18: ...xviii List of Figures Notes ...
Page 22: ...xxii CommercialWarranty Notes ...
Page 46: ...3 20 Theory of Operation Main Board Notes ...
Page 84: ...3 58 Theory of Operation Bluetooth Notes ...
Page 208: ...6 64 Troubleshooting Waveforms LF CW on Spectrum Analyzer Notes ...
Page 222: ...7 14 Troubleshooting Tables List of Board and IC Signals Notes ...
Page 282: ...8 60 Schematics Boards Overlays and Parts Lists Main Board Block UHF1 84012513001_A Notes ...
Page 390: ...8 168 Schematics Boards Overlays and Parts Lists Main Board Block VHF 84012512001_A Notes ...
Page 456: ...9 8 Debugging Fixture Powering up Covert Board Notes ...
Page 468: ...Glossary 10 Glossary Notes ...
Page 472: ...Index 4 Index Notes ...
Page 473: ......