8-36
Schematics, Boards Overlays, and Parts Lists
: Transceiver (RF) Boards: VHF (84012320001 / PC000352A01)
Figure 8-8. Automatic Level Control Circuit
DIG_CTRL_ATTH
DC_LIN_5V
DC_LIN_3V
D
IN
IN
IN
IN
.02
1UF
.01UF
C1101
E1101
R1103
2
1
C1102
VINPOS
VINNEG
VPOS
GND
OUT
510K
68.1K
.01UF
INA138
10PF
U1101
C1139
R1141
R1108
C1103
DC_LIN_5V
5
3
4
1
2
DIG_CTRL_I_LIMIT
ANA_CTRL_ISET
IN
IN
4.7K
.01UF
0
12K
.01UF
C1138
R1172
R1171
R1160
C1137
IN
DIG_SPI_CLK
DC_LIN_1_875V_D
ANA_CTRL_VSET
IN
IN
IN
A1
A2
VCCA
VCCB
GND
B1
B2
DIR
SN74LVC2T45
U1137
DC_LIN_5V
A2
A1
D2
C2
B2
C1
B1
ADDED FOR DEFAULT
HIGH
SN74LVC2T45
10K
R1101
U1138
DIG_CTRL_TX_INH
DC_LIN_1_875V_D
DIG_DATA_SPI_MOSI
IN
IN
A1
A2
VCCA
VCCB
GND
B1
B2
DIR
DC_LIN_5V
A2
A1
D1
D2
C2
B2
C1
B1
DC_LIN_5VREF
D1
CTGND
VOUTA
VDD
VOUTD
VOUTB
DIN
SCLK
GND
VOUTC
SYNC
VREFIN_VREFOUT
AD5624R
.1UF
.1UF
C1165
C1116
TX_INH
DC_LIN_5V
10
5
4
2
1
9
6
7
3
8
G1
U1125
30.1K
75K
R1122
R1121
DAC_C
74LVC1G08YZP
74LVC1G32YZP
U1147
U1146
DIG_DMCS
DIG_GPIO49
C2
B1
A1
C2
B1
A1
IN
IN
A1
A2
VCCA
VCCB
GND
B1
B2
DIR
SN74LVC2T45
U1139
DC_LIN_5V
DC_LIN_1_875V_D
A2
A1
D1
D2
C2
B2
C1
B1
IO49
TXH_5V
0
R1111
TXH
OUT
VCC
GND
VCC
GND
74LVC1G32YZP
74LVC1G08YZP
U1147
U1146
DC_LIN_1_875V_D
A2
C1
A2
C1
POS
GND
VOUT
.01UF
LM50
C1106
U1103
DC_LIN_5V
2
1
3
LPV321M7X
U1148
DC_LIN_5V
25
4
1
3
22K
47K
R1125
R1126
.01UF
10K
DNP
LPV321M7X
10K
R1164
C1119
R1129
U1113
DC_LIN_5V
25
4
1
3
.01UF
10K
20K
10K
LPV321M7X
DNP
200
10K
200
R1166
R1165
R1167
R1127
C1120
R1128
R1130
U1114
DC_LIN_5V
25
4
1
3
VCC
GND
M74VHC1GT86
U1121
DC_LIN_5V
5
3
M74VHC1GT86
U1121
4
2
1
VOUT
GND2
VIN
GND1
DNC1
DNC2
NC
NC
1UF
LT1790
.1UF
C1161
C1160
U1150
DC_LIN_5VREF
SW_B+
6
4
2
1
5
3
IN
IN
NO
COM
GND
NC
TS5A3159
U1144
DC_LIN_5V
5
1
3
6
2
4
NC
V_POS
80.6K
0
340K
R1175
R1169
R1170
DC_LIN_5V
LPV321M7X
U1143
DC_LIN_5V
25
4
1
3
100K
100K
100K
100K
LMV841
R1140
R1138
R1139
R1142
U1129
DC_LIN_5V
25
4
1
3
100K
100K
100K
R1143
R1144
R1145
25
4
1
3
LMV841
100K
R1146
U1130
DC_LIN_5V
FIL
OUT
.01UF
DNP
LPV321M7X
10K
LPV321M7X
100K
DNP
.047UF
U1141
C1135
R1158
R1110
C1108
U1104
DC_LIN_5V
DAC_C
25
4
1
3
25
4
1
3
100
100
R1104
COUPLER
FWD
RVS
R1105
DNP
5.6PF
56.2
DNP
8.2PF
33NH
DNP
1000PF
5.6PF
100
33NH
C1155
L1116
C1142
R1168
C1125
R1106
C1104
L1101
ACG3
ACG2
ACG1
GND
V1
VDD
V2
V3
RF1
NC1
NC2
NC4
NC3
RF2
NC5
NC6
NC7
1000PF
.01UF
HMC468LP3E
3300PF
C1126
C1117
C1118
U1112
DC_LIN_5V
16
15
14
13
11
2
12
10
9
8
4
3
1
17
7
6
5
100
100
R1114
R1115
10K
.01UF
4700PF
LMV7275
C1140
C1128
R1137
U1126
DC_LIN_5V
25
4
1
3
IN
NO
COM
GND
TS5A3159
10K
R1178
U1127
DC_LIN_5V
5
1
3
6
2
4
NC
V_POS
10K
0
.01UF
10K
4700PF
R1182
C1123
C1124
R1136
R1135
.1UF
LPV321M7X
U1142
C1127
DC_LIN_5V
25
4
1
3
DNP
0
100K
R1180
R1181
51
R1124
3
1
4
2
RFIN
ENBL
VSET
FLTR
VPOS
COMM
NC
VAPC
GND
.1UF
AD8315
C1111
U1105
DC_LIN_5V
8
7
6
9
5
16K
150K
R1162
R1163
.01UF
10K
LMV7275
C1129
R1152
U1131
DC_LIN_5V
25
4
1
3
BAND
NC
6800PF
15K
R1151
C1112
BAND
SN74LVC1G00
U1128
C2
B1
A1
VCC
GND
SN74LVC1G00
U1128
DC_LIN_5V
A2
C1
NTR1P02T1
Q1103
FIL
2
1
3
74LVC1G08YZP
U1119
TX_INH
TXH_1
C2
B1
A1
IN
VCC
GND
74LVC1G08YZP
U1119
DC_LIN_3V
A2
C1
22K
22K
100K
MUN5212T
R1102
Q1101
2
3
1
BAND
RFIN
VM
VOS
VCC
GND
VOUT
.01UF
100PF
68
6.8NH
5.6PF
51
DNP
LTC5532
330PF
R1112
R1107
C1105
C1110
C1107
C1113
L1102
U1106
DC_LIN_3V
5
3
4
6
1
2
16K
10K
R1116
R1117
TXH_1
B1
A1
VCC
GND
74LVC1G32YZP
74LVC1G32YZP
U1149
U1149
DC_LIN_3V
TX_SWI
A2
C1
C2
OUT
2.7PF
1.65NH
L1117
C1122
10K
R1198
RF_OUT
OUT
VCTRL
OUT
10K
10K
R1174
R1154
PA_OFFSET
IN
NO
COM
GND
.1UF
1.82K
TS5A3159
C1141
R1176
U1133
VC
5
1
3
6
2
4
NC
V_POS
0
R1177
DC_LIN_5V
MODE_SELECT
VCC
GND
74LVC1G08YZP
74LVC1G08YZP
U1136
U1136
DC_LIN_5V
C2
B1
A1
A2
C1
PR
VCC
GND
Q*
D
CLR
CP
Q
NL17SZ74
.01UF
C1130
U1132
DC_LIN_5V
8
3
5
7
4
2
1
6
ANA_RX_FE_FILT_VTUNE
TX_7V_1
OUT
OUT
Summary of Contents for APX 2000
Page 1: ...APXTM TWO WAY RADIOS APX 1000 APX 2000 APX 4000 APX 4000Li DETAILED SERVICE MANUAL ...
Page 4: ......
Page 6: ...iv Document History Notes ...
Page 8: ...Notes vi Commercial Warranty ...
Page 10: ...Notes ...
Page 22: ...xiv List of Figures Notes ...
Page 226: ...6 64 Troubleshooting Waveforms LF CW on Spectrum Analyzer Notes ...
Page 688: ...Index 4 Index Notes ...
Page 690: ...ii Notes ...
Page 700: ...xvi List of Figures Notes ...
Page 806: ...5 50 Troubleshooting Charts PA Failure Notes ...
Page 1008: ...8 178 Schematics Boards Overlays and Parts Lists Transceiver RF Boards UHF2 84012621001 Notes ...
Page 1062: ...8 234 Schematics Boards Overlays and Parts Lists Keypad Board M2 and M3 PC000261A01 Notes ...
Page 1064: ...ii Notes ...
Page 1068: ...Notes A 4 EMEA Warranty Service and Technical Support Further Assistance From Motorola ...
Page 1090: ...Glossary 10 Glossary Notes ...
Page 1094: ...Index 4 Index Notes ...
Page 1095: ......