Figure 9-64. Uhf (403-470 Mhz) Receiver Back End Schematic Diagram - Motorola HT Series Detailed Service Manual

UHF Band 1 Circuit Board/Schematic Diagrams and Parts List (PCB 8486458Z03)
L311
560nH
3
IF G
2 CC1
5 CC2
C324
22pF
C325
9.1pF
R5
G
FL301 R311
MXF45 33K
44.85MHz
L330
L331
680nH 680nH
IN OUT 6
C338
R315
NU
12K
1 4
1 7
U302-1
TC7W04F
C352
0.1uF
5V
$P
R355
100K
6 2
BW_SEL G
U302-2
TC7W04F
C362
0.1uF
R350
R358
3.3K
2.4K
FL302
CFUCJ455E
1 IN OUT 2
3
R314
1.6K
5V
R344
C326 R313
51
0.1uF 330 C348 C382
0.1uF 10uF
C344
0.1uF
R312
C360
4.7K
3.3pF R359
L332
NU
C361 1.2uH
C327
0.1uF C366
0.1uF
NU
Q302
C355
0.1uF
CR311
C385
30pF
R322
1K
R320 C364
NU
24pF
L325
1uH
SH323
SHIELD
1
CRYSTAL FILTER SHEILD
R345
R360
39K 20K
FL303
CFWC455E
1 IN OUT
2
3 4
CR312
R321
R324
39K 20K 1
FL304
2 CFWC455G 3
2
3 1 IN OUT 2
1
R361
CR313
20K
4
3
5V
C329
C357
0.1uF
0.1uF
R363
390
C343
C347 0.1uF
C345
0.1uF C346
0.1uF
0.1uF
3
1
Q320
MMBT3904
2
U301
SA616
C351
120pF
R364
1.8K
VCC GND
R365
6 15
1.2K
1
Y301
45B02 3
455KHz
C367
R346
30pF
15K
R368
10K
G
DISC_OUT
Y300
R369 DISC_OUT
TSS-2
680
44.395MHz
R367 C334
8.2K 4700pF
1 3
IN OUT
SH322
SHIELD
1
IFIC SHIELD

Figure 9-64. UHF (403-470 MHz) Receiver Back End Schematic Diagram

9-85
5V
8
3 5
NC
VCC
U302-3
GND
TC7W04F
4
U302-4
PWR_GND
2
C349
0.1uF
RSSI
G
R366
12K
C350
0.1uF