Motorola GP344 Detailed Service Manual page 294

3 -36
U210
TC7ST04FU
1 4
NC
3 5
GND VCC
2
C258
.01uF
C259
.01uF
3
2
1
C228
C230 C229
4.7uF
100pF 1000pF
G
CLK
G
CSX
MODIN G
C210 C212
100pF 100pF
L261
39nH
G
PRESC
G
VSF
UHF1 (403-470MHz) Synthesizer Schematic Diagram
8415563H06
U211
C257
C296 TC7ST04FU C265
0.1uF 100pF
1 4 NU
NC
3 5
GND VCC
2
5V
G
(SOURCE)
CR201
4
K3 A3
L202
5
K2 A2 2.2uH
6
K1 A1
C292
0.1uF
C219
0.22uF
C298
0.1uF
XTAL1
XTAL2
8
CLK FREFOUT
9
CEX MODOUT
10
MODIN VMULT1
7
G
DATA DATA VMULT2
30
SFIN VMULT3
C214
C211
VMULT4
100pF R201
35
100pF
82K PVREF
21
VBPASS AUX1
AUX2
R202 40
BIAS1 AUX3
U201
100K
39
BIAS2 63A27 AUX4
26
C264 SFCAP TEST1
27
100pF
SFBASE TEST2
32
PREIN
IOUT
18
REFSEL IADAPT
42
CCOMP LOCK
C263
C204
ADAPTSW
0.75pF
17
2.2uF
NC1 SFOUT
29
NC2 INDMULT
31
NC3 WARP
C201 C202 C203
100pF 1000pF 4.7uF
U247
ADP3300
ERR SD
6 3
OUT IN
4 5
NR
C291 2
10uF C294
100pF
L203
2.2uH
C223 C235
0.1uF 2.2uF
Vdda
L201
2.2uH
C224 C217 C218 C220
0.1uF 2.2uF 0.1uF 100pF
23
24
R255
19
G
16.8MHz 4.3K
41
15
Q210
14
12
11 1
48
1
2
BW_SEL
G
C260
2
AUX3
100pF
G
3
G G
AUX4
3 4
37
38
5V
43
45
4
G
LOCK
46
28
16
C213
TP201
25 1 100pF
R204
47K
FL201 16.8MHz
75Z04
6 3
IN OUT
C207 C208
39pF CR203
NU
R281
C206
NU
330pF
G
SWB+
C293
G
SWB+
0.47uF
U248
LP2980 3 1
C277 C278
100pF 2.2uF
2
GND
C279
2.2uF
MODOUT
C233
0.1uF
1
TP202
R256
R231 C234 C232
30
120 0.47uF
.047uF
R5
C231 R232
0.1uF 620
R233
560
G VCTRL
L232
12uH
C238
470pF
SH201 SH202
SHIELD SHIELD
1 1
if
SYNTHESIZER TOP SHIELD SYNTHESIZER BOTTOM SHIELD
UHF1 PCB and Schematic Diagrams