Figure 8-6. Automatic Level Control Circuit - Motorola APX 3000 Detailed Service Manual

8-8
DC_RAW_B+
IN
DC_LIN_5V
IN
DC_LIN_3V
IN
DIG_CTRL_ATTH
IN
DIG_CTRL_I_LIMIT
IN
ANA_CTRL_ISET
IN
C1169M11
100PF
IN
DC_LIN_1_875V_D
R1202M11
DC_LIN_1_85
0
DC_LIN_5V
IN
U1137M11
SN74LVC2T45
DIR
DIG_SPI_CLK B2
C1163M11 IN B1
A1
C2
100PF B2 A2
ANA_CTRL_VSET
IN
C1164M11 C1168M11
100PF 100PF
R1101M11
ADDED FOR DEFAULT
10K
HIGH
DC_LIN_1_875V_D
U1138M11
SN74LVC2T45
DIG_DATA_SPI_MOSI
IN
B2
C2
DIG_CTRL_TX_INH
IN
C1170M11 C1171M11
100PF 100PF
DIG_DMCS
IN
U1146M11
74LVC1G32YZP A1
A1
C1166M11
C2 B1
100PF
B1
IN
DIG_GPIO49 DC_LIN_1_875V_D
C1167M11
100PF
VCC
GND
U1146M11
74LVC1G32YZP
DC_LIN_5V
C1156M11
100PF
C1106M11
.01UF
POS
VOUT 2
U1103M11
LM50

Figure 8-6. Automatic Level Control Circuit

U1150M11
DC_LIN_5VREF
LT1790
4 VIN VOUT 6
SW_B+ IN
3 DNC1
NC
5
DNC2
NC
C1160M11 C1161M11
GND1
.1UF
1UF
R1103M11
E1101M11
.02
1 2
DC_LIN_5V
DC_LIN_5V
R1169M11
340K
TS5A3159
U1144M11
DC_LIN_5V
NC
1 NO
R1170M11
6 4
IN COM
80.6K
5 V_POS 3
NC
GND
C1103M11
.01UF
INA138
R1141M11 R1175M11
U1101M11
510K 0
VPOS
3 1
VINPOS
4
VINNEG
R1108M11
GND
68.1K
DC_LIN_5V DAC_C
C1108M11
.047UF
3
4
1
R1110M11
10K R1158M11
U1141M11 100K
LPV321M7X
3
R1172M11
R1171M11
0 4.7K
1
R1160M11 C1137M11 C1138M11
12K .022UF .022UF
RVS
COUPLER
FWD
C1125M11
8.2PF
L1101M11 C1142M11
33NH 1000PF
R1168M11 C1104M11
R1106M11
100 5.6PF
6.8 DC_LIN_5V
DNP
U1112M11
HMC468LP3E
13 V1
NC1
DC_LIN_5V 14 V2
D2 NC2
15
B1 C1116M11 V3 NC3
.1UF
C1 NC4
2 RF1
U1125M11 NC5
11 RF2
NC6
AD5624R
NC7
5 ACG1
7 SCLK 1 6 ACG2
DC_LIN_5VREF VOUTA
6 SYNC 2 7 ACG3
VOUTB
8 4
DIN VOUTC
10 R1122M11 C1117M11 GND
VREFIN_VREFOUT 5
VOUTD 75K
3300PF
DC_LIN_5V
GND CTGND
DAC_C
D2
DIR
B1
B1 A1 TX_INH
C1
B2 A2
GND
DC_LIN_1_875V_D
DC_LIN_5V
U1139M11
U1147M11 SN74LVC2T45
74LVC1G08YZP
C1128M11
D2
DIR .01UF
C2 B2 B1 TXH_5V DC_LIN_5V
B1 A1
C2 B2 C1
A2
IO49
R1178M11
U1126M11
10K U1127M11
LMV7275 R1137M11
TS5A3159
3 10K
1 NO
4 6 IN
1 5 V_POS
GND
TXH DC_LIN_5V
OUT C1140M11
4700PF
U1147M11
VCC
74LVC1G08YZP
GND
DC_LIN_5V
C1119M11
.01UF
R1125M11
47K U1113M11
LPV321M7X
3
4
1
R1126M11
20K
R1164M11
10K
DC_LIN_5V
U1121M11
R1165M11 M74VHC1GT86
200 1
3 4
4 DC_LIN_5V 2
1 C1120M11
U1148M11
.01UF
LPV321M7X
DC_LIN_5V
R1166M11
R1127M11
U1121M11
200
20K M74VHC1GT86
C1157M11
3 100PF VCC
4
1 GND
R1128M11
10K R1167M11
U1114M11 10K
LPV321M7X
DC_LIN_5V
C1162M11
100PF
DC_LIN_5V
R1138M11
3
100K
4
DC_LIN_5V
1
R1142M11
U1143M11
100K
LPV321M7X U1129M11
LMV841
R1144M11
R1146M11
R1139M11 3 100K
100K
4
100K
1
U1130M11
LMV841
R1140M11 R1143M11 3
4
100K 100K
1
R1145M11
100K
DC_LIN_3V
4
C1110M11
U1104M11
100PF
LPV321M7X
BAND
U1106M11
LTC5532
C1107M11
L1102M11
6.8NH 100PF
1
RFIN
4
VM
3
VOS
R1107M11 R1112M11
68 51
C1105M11
DNP
5.6PF
C1118M11
.01UF DC_LIN_5V
C1129M11
.01UF
R1163M11 R1152M11
1 U1136M11
10K 10K
3 3
74LVC1G08YZP
4 A1
4
8 1
U1131M11
9 R1162M11 B1
10 150K LMV7275
12
DC_LIN_5V
DC_LIN_5V
C1111M11
.1UF
C1126M11
AD8315
1000PF
U1105M11
VPOS
1 7
R1124M11 RFIN VAPC
2
51
ENBL
3 6
VSET NC NC
4
FLTR
5
R1180M11 COMM
0 C1112M11
GND
6800PF
BAND
R1151M11
15K
BAND
C1123M11
.01UF
U1128M11
C1127M11 .1UF SN74LVC1G00
DC_LIN_5V
A1
C2
3 B1
R1136M11 4
10K
COM 4 1
3 U1142M11 DC_LIN_5V
NC R1135M11
LPV321M7X
0 U1128M11
C1124M11 SN74LVC1G00
4700PF
VCC
GND
R1182M11
10K
FILT_RAW_B+
NTR1P02T1
Q1103M11
2 3
U1119M11 Q1101M11
MUN5212T
74LVC1G08YZP
TXH_1
A1 3 R1102M11
IN 22K
C2 1
100K
B1
TX_INH
DC_LIN_3V
U1119M11
74LVC1G08YZP
VCC
C1159M11
100PF GND
Schematics, Boards Overlays, and Parts Lists: Main Board Block: UHF1 (84012513001_A)
TXH_1 U1149M11
74LVC1G32YZP
A1
C2
OUT
5 B1 TX_SWI
R1117M11
75K
DC_LIN_3V
R1116M11
10K U1149M11
VCC
74LVC1G32YZP
GND
L1117M11 RF_OUT
1.65NH
RF_OUT
5
C1122M11 1
3PF 2
3
R1198M11
4
10K
C1130M11
DC_LIN_5V .01UF
R1174M11
PA_OFFSET 10K
7
PR
2 5
D Q
1
C2 CP 3
Q* C1172M11
6 100PF DNP
CLR
U1133M11
U1132M11 TS5A3159
R1154M11
NL17SZ74 1 NO
10K
6 4 VC
IN COM
5 3
V_POS
NC
VCC DC_LIN_5V GND
C1141M11
GND .1UF
R1177M11
0
ANA_RX_FE_FILT_VTUNE
FILT_RAW_B+
OUT
OUT
J102M11
CONN_P
VCTRL
OUT
OUT
TX_7V_1
OUT