Etapas De Entrada Y De Salida Del Receptor 25-40 W Uhf3 (465-495 Mhz) (Hoja 2 De 2) - Motorola EM200 Serie Manual De Servicio

Esquemas eléctricos de la tarjeta de circuito impreso 8486577U01 del radio UHF 25-40 W banda 3
U301
TC7W04F
1 7
C313
100n
U301
TC7W04F
6 2
BW_SEL
D302
C312
100n
R324
R327
3.3K
2.4K
3V
U301
PWR_GND
VCC
GND
U301
TC7W04F
3 5
D304
R337
100.
5V
R325
R302
3.3K
0.
C305
100n
R333
C318
560.
0.1uF
R304
33.K
C304
R322
100n
FL300 4.7K
FLTR_44.85M
FREQ
Q305
L305
1.2u 4802197J95
OUT 6
3 IN
2113740F33
C362
2 CC1
C303
18pF 5 CC2 C364 R312
100n
13.K
C369 22p
DNP
8.2p
CR300
C336
9.1p
R306 R315
20.K FL301 12.K
FLTR
1 IN 2
OUT
R316
R305 D301
12.K
20.K FL302
FLTR
1 IN 2
OUT
R314
12.K
C316
0.1uF
R307
R317
20.K FL304 12.K
CFWC455D
1 IN OUT 2
C317
0.1uF
C310
C311
R308 R318 D303
100n
100n
20.K 12.K
1 OUT 2
IN
R319
12.K
FL303
CFWC455G
U300
SA616
R339
51.
3V VCC GND
6 15
C308
C307 C301
100n
100n 10.0u
C337
6.8p
L303 R323
1.2u 4.7K
C365
C371
22p
2.7p
C320
DNP DNP
0.1uF
C319
0.1uF
C306 C314
100n 100n
R309
C359 C360
R320 R332
33p 30p 15.K
10.K 680.
R321
8.2K
R311
15.K
Y301
DNP
06B09
44.395MHz
3 OUT IN 1
C361
R303
0. 30p
DNP
L315
27nH
DNP

Etapas de entrada y de salida del receptor 25-40 W UHF3 (465-495 MHz) (hoja 2 de 2)

3V
R335
390.
Q302
130.0p R328
C302
1.8K
Y300
45B02
R329
455KHz
1.2K
C315
100n
R313
12.K
RSSI
C309
100n
DEMOD
C322
4.7n
4-13