Figure 9-91. Uhf Receiver Back End Schematic Diagram For (403-470Mhz For 8415234H01) - Motorola HT Series Detailed Service Manual

UHF Band 1 Circuit Board/Schematic Diagrams and Parts List (PCB 8415234H01, 8415234H02, 8415234H05, 8415234H08)
FL301
MXF45
44.85MHz
L311
560nH
3 IN OUT 6
IF
C324 2 CC1
5 CC2
22pF
C325
1 4
9.1pF
BW_SEL
R314
1.6K
R5
5V
C326 R313
0.1uF 330
R312
4.7K
R311
C327
33K
0.1uF
C361
0.1uF
L330 L331
680nH 680nH
Q302
C338
NU
R315
12K
1 7
U302-1
R345
C352
TC7W04F 0.1uF 39K
FL303
CFWC455E
1 IN
5V
R355
3
100K
6 2
U302-2
CR312
C362 R321
TC7W04F
39K
0.1uF FL304
2 CFWC455G
3 1 IN
1
R350
3.3K
R358
2.4K
3
C357
0.1uF
FL302
CFUCJ455E
1 IN OUT 2
C347
0.1uF
C346
0.1uF
3
R344
51
VCC
6
C344
C382
C348
10uF 0.1uF
0.1uF
C360
3.3pF
L332 R359
1.2uH NU
C366
NU
C355
CR311 0.1uF
R346 C367
30pF
C385 15K
30pF
Y300
TSS-2
R322 44.395MHz
1K
1 3
IN OUT
C364
R320
24pF
NU
L325
1uH
SH323
SHIELD
1
CRYSTAL FILTER SHEILD LVZIF BTM SHEILD
5V
R360
20K
8 3
VCC
OUT 2
GND U302-3
TC7W04F
4 U302-4
PWR_GND
4
R324
20K 1
3
OUT 2 2
R361
CR313
20K
4
5V
C329
0.1uF
R363
C343 390
0.1uF
C345
0.1uF
3
1
Q320
MMBT3904
2
U301
SA616
C351
R364
120pF
1.8K
GND
R365
15
1.2K
1 2
Y301
3 C349
45B02
0.1uF
455KHz
R366
12K
C350
0.1uF
DISC_OUT
DISC_OUT
R368 R369
10K 680
C334
R367
4700pF
8.2K
SH322
SHIELD
1

Figure 9-91. UHF Receiver Back End Schematic Diagram for (403-470MHz for 8415234H01)

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5
NC
RSSI