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Schematic Diagrams, Overlays, and Parts Lists
: UHF Band 1 Section
.01uF
C258
3
GND
2
1
NC
4
5
VCC
TC7ST04FU
U210
C259
.01uF
2
K2
3
K3
CR201
A1 6
A2 5
A3
4
K1
1
C229
1000pF
C228
4.7uF
C230
100pF
0.1uF
C296
2
1
NC
4
5
VCC
TC7ST04FU
U211
3 GND
C265
C257
100pF
NU
6
ERR
1
GND
5
IN
2
NR
4
OUT
3
SD
ADP3300
U247
C291
10uF
0.1uF
C298
L202
2.2uH
C219
0.22uF
C292
0.1uF
5V
(SOURCE)
C223
0.1uF
2.2uF
C235
C224
0.1uF
C217
2.2uF
0.1uF
C218
16.8MHz
C204
2.2uF
XTAL1
23
XTAL2
24
VBPASS
21
VCP
47
VMULT1 15
VMULT2 14
12
VMULT3
VMULT4 11
VRO
13
25
WARP
PVREF
35
REFSEL
18
SFBASE
27 SFCAP
26
SFIN
30
SFOUT
28
TEST1 37
TEST2 38
NC1
17
NC2
29
NC3
31
PD_GND
44
PD_VDD
5
PREIN
32
PRE_GND
33
PRE_VDD
34
DVDD
36
FREFOUT 19
IADAPT 45
INDMULT
16
IOUT 43
LOCK 4
MODIN
10
MODOUT 41
AVDD
20
BIAS1
40
BIAS2
39
42
CCOMP
CEX
9 CLK
8
DATA
7
DGND
6
ADAPTSW
46
AGND
22
AUX1 48
AUX2 1
AUX3 2
AUX4 3
LVFractN IC
U201
82K
R201
100pF
C211
0.75pF
C263
C264
100pF
100K
R202
100pF
C214
DATA
AUX3
AUX4
39nH
L261
TP201
1
100pF
C212
C210
100pF
CSX
CLK
MODIN
PRESC
VSF
C201
100pF
C203
4.7uF
C202
1000pF
SWB+
100pF
C294
C293
0.47uF
L203
2.2uH
Vdda
100pF
C277
C278
10uF
MODOUT
C279
2.2uF
100pF
C220
NC
4
3
ON_OFF*
VIN
1
VOUT
5
U248
LP2980
GND
2
L201
2.2uH
100pF
C260
2
4
1
3
Q210
4.7K
47K
47K
10K
R255
4.3K
47pF
C207
R281
GND
1
GND1
4
OUT 3
IN
6
FL201
75Z04
16.8MHz
330pF
C206
NU
100pF
C213
C208
CR203
47K
R204
LOCK
NU
SHIELD
SH201
C238
470pF
L232
12uH
R5
5V
C231
0.1uF
560
R233
R232
620
VCTRL
C232
.047uF
0.47uF
C234
TP202
1
R231
120
30
R256
C233
0.1uF
4V_3.3V
if
SHIELD
SH202
1
1
SYNTHESIZER TOP SHIELD
SYNTHESIZER BOTTOM SHIELD
Figure 4-24:
UHF (403–470 MHz) Synthesizer Schematic Diagram
Summary of Contents for PR860
Page 1: ...PR860 Two Way Portable Radio Detailed Service Manual ...
Page 2: ......
Page 5: ...iv Notes ...
Page 9: ...viii Table of Contents Notes ...
Page 13: ...Notes xii List of Figures ...
Page 17: ...1 4 Introduction Radio Model Information Notes ...
Page 51: ...2 34 Theory of Operation Voltage Control Oscillators VCO Notes ...
Page 81: ...4 4 Schematic Diagrams Overlays and Parts Lists Flex Layout Notes ...
Page 193: ...4 116 Schematic Diagrams Overlays and Parts Lists Low Band Section Notes ...
Page 196: ......