Etapas De Entrada Y De Salida Del Receptor Vhf2 (146-174 Mhz) (Hoja 2 De 2) - Motorola EM200 Serie Manual De Servicio

Esquema eléctrico de la tarjeta de circuito impreso 8488977U01 del radio VHF 1-25 W banda 2 (rev. P8)
BW_SEL
5V
FL300
FLTR_44.85M
FREQ
3 IN
2 CC1
5
CC2
C357
22.p
C335
9.1p
1 7
U301
TC7W04F
U301
TC7W04F
6 2
C312
100n
R326 R324
3.3K
2.4K
Check if it is 3v or another value
3V
U301
PWR_GND
8
VCC
GND
4
U301
TC7W04F
3 5 R302 R325
3.3K
0.
R336
R332
100. R304
560.
33.K
C305
100n
C304
R322
100n
4.7K
L304
1.2u
OUT 6
Q305
DNP
R312 C303
13.K 100n
C364 C359
22p
8.2p CR300
R315
12.K
R306
C313
20.K
100n FL301
FLTR
1 IN OUT 2
D302 R305 R316
D301
20.K 12.K
1 IN 2
OUT
FL302
FLTR
C316
0.1uF
R307 R317
FL304
20.K 12.K
CFWC455D
1 IN OUT 2
C311
D304 R308 R318
D303
100n
20.K 12.K
1 IN OUT 2
R319
FL303
12.K
CFWC455G
R338
C318
51. U300
0.1uF
3V VCC
SA616
6
C307 C301 C308
100n 10.0u 100n
C336
6.8p
DNP DNP
C367 L301 R323
2.7p 1.2u 4.7K
C360
22p
C306
100n
C319
0.1uF
C352 C353 R309
33p 30p 15.K
Y301
R311
NU
06B09
15.K 44.395MHz
3 1
OUT IN
NU
R303 C356
30p
0.
NU L315
27nH

Etapas de entrada y de salida del receptor VHF2 (146-174 MHz) (hoja 2 de 2)

R314
12.K
C317
0.1uF
3V
C310
R334
100n
390.
Q302
GND
15
C302
R328
130.0p 1.8K
Y300
R329
45B02
1.2K
455KHz
C320
C315
0.1uF 100n
C314
RSSI
100n
R313
12.K
C309
100n
DEMOD
R320
R331
10.K
680.
C322
4.7n
R321
8.2K
73D02968C63-0
SHEET 6 OF 8
4-13