8-70
Schematics, Boards Overlays, and Parts Lists
: Transceiver (RF) Boards: UHF2
Figure 8-44. NUE7366A Frequency Generation Unit (VCO) Circuit – 2 of 2
DIG_CTRL_F
1
TP853
DC_SUPER_FILTER_5V
TEST_POINT
DC_LIN_5V
DC_LIN_1_5V
DIG_CTRL_TR
DIG_CTRL_G
IN
IN
IN
IN
IN
IN
ANA_ADAPT_CHARGE_PUMP
ANA_CHARGE_PUMP
IN
IN
680
.016UF
C769
R764
C766
R767
C760
C763
C765
C768
C770
C762
R759
1.2K
.082UF
6800PF
.082UF
.039UF
.082UF
.082UF
68
.082UF
RF_HP_MOD_OUT
R761
R762
C759
C783
.22UF
11K
220
1500PF
IN
DIG_CTRL_VTUR1
DIG_CTRL_UR2
DIG_CTRL_UT1
DIG_CTRL_B
DIG_CTRL_UT2
DIG_CTRL_C
IN
IN
IN
IN
IN
IN
V0225AZ
3
NC
SEL2
VTUNE
SEL1
NC
GND6
GND3 GND4 GND5
POUT
VCC
GND1 GND2
7
11
5
1
4
12
10
9
8
6
2
Y705
C792
C795
100PF
0.1UF
DC_SUPER_FILTER_5V
415MHZ/485MHZ
V0225AZ
NC
SEL2
VTUNE
SEL1
NC
GND6
GND3 GND4 GND5
POUT
VCC
GND1 GND2
7
11
5
3
1
4
12
10
9
8
6
2
Y704
C791
C794
DC_SUPER_FILTER_5V
0.1UF
309MHZ/379MHZ
100PF
V1
V2
V3
RFC
NC
RF1
RF2
RF3
CGND
7
6
3
1
8
5
4
2
G1
U709
SKY13251
NC
NC
C814
C816
L817
R819
100PF
1000PF
270
390NH
4
3
5
Q712
BC858CD
C701
R812
220PF
82
Q712
R815
C810
R808
220PF
BC858CD
82K
24
C802
R811
R809
R807
L806
DC_LIN_1_5V
22K
390NH
39
5.6K
.22UF
1
6
2
C709
R705
R708
C704
R813
L701
3
1
2
4
Q713
R818
C779
C777
C775
R778
R776
C813
C820
DC_LIN_1_5V
390NH
100PF
NE662M04
10
180
8.2
62PF
220PF
39
1PF
680
1000PF
220PF
100
33PF
13
2
Q774
R773
R772
C771
NE68519
5.6K
33
100PF
100PF
C703
DNP
NC
NC
V1
V2
V3
RFC
NC
RF1
RF2
RF3
CGND
7
6
3
1
8
5
4
2
G1
U710
SKY13251
NC
NC
NC
4
1
5
2
3
6
Q714
NTZD3154N
L821
BC858CD
Q703
R822
C806
C702
R840
4
3
5
Q703
1
6
2
R832
R827
R833
R823
C830
220PF
56K
BC858CD
.22UF
6.2K
20K
DC_LIN_1_5V
390NH
100
15
220PF
15
L846
390NH
560
47PF
R849
C844
C838
1000PF
TL_TX_LO
R717
R715
R716
R701
C851
R848
C836
47PF
560
10
560
15
100
220PF
OUT
3
12
4
Q842
NE662M04
R714
R712
R713
C831
10
560
560
100PF
TL_RX_LO
OUT
TEST_POINT
1
TP780
RF_PRESCALAR
OUT
Summary of Contents for APX 6000
Page 1: ...APX TWO WAY RADIOS APX 5000 APX 6000 APX 6000XE SRX 2200 Detailed Service Manuals ...
Page 2: ......
Page 6: ...iv Document History Notes ...
Page 20: ...xviii CommercialWarranty Notes ...
Page 26: ...2 4 Radio Power DC Power Routing VOCON Board Notes ...
Page 100: ...3 74 Theory of Operation Bluetooth Notes ...
Page 172: ...5 66 Troubleshooting Charts PA Failure Notes ...
Page 250: ...6 78 Troubleshooting Waveforms LF CW on Spectrum Analyzer Notes ...
Page 276: ...7 26 Troubleshooting Tables List of Board and IC Signals Notes ...
Page 300: ...8 24 Schematics Boards Overlays and Parts Lists Transceiver RF Boards VHF Notes ...
Page 336: ...8 60 Schematics Boards Overlays and Parts Lists Transceiver RF Boards UHF1 Notes ...
Page 378: ...8 102 Schematics Boards Overlays and Parts Lists Transceiver RF Boards 700 800 MHz Notes ...
Page 432: ...Glossary 10 Glossary Notes ...
Page 437: ......