Etapas De Entrada Y De Salida Del Receptor Vhf2 (146-174 Mhz) (Hoja 1 De 2) - Motorola EM200 Serie Manual De Servicio

4-12
C354
30.p
IF300
RX 1
C338 L300
120.p 33.47n
C300
C340
51.p
82.p L307
33.47n
SH300
SHIELD
1

Etapas de entrada y de salida del receptor VHF2 (146-174 MHz) (hoja 1 de 2)

9V
Q306
9V
R300
10.K
R346
3V
10.K
3V
R345
10.K
RX_EN
Q300
5V
R327
C329
5V
2.4K
470.p
SH301
SHIELD
1
DNP
C349
36.p
DNP
C323
C363 C337
C365 C355
12p
180.p
5.6p 30.p 1.n
R343
L314 10.
33.47n
C351
36.p
CR301
C345 L308
C341
82p 33.47n
C344
82.p
DNP
82p
DNP
Esquema eléctrico de la tarjeta de circuito impreso 8488977U01 del radio VHF 1-25 W banda 2 (rev. P8)
FRONT-END SHIELD
9R
Q304
R310
R333
15.K
430.
LOC_DIST
C324 C330
1n 470.p
R335
220.
Q301
L303 R339 C331
51.
1.2u 470.p
C366
3.3p
DNP
R330 C328
1.K 470.p
C325 C339 L309 C346 L310 C343 L311
1n 100.p 33.47n 56.p 33.47n 82.p 33.47n
Q303
BFS540
C347 C333 C334
39.p 91.p 91.p
R342 R344 R341
10. 10. 10.
RX_INJ
L313
L312 C326
C327
33.47n 33.47n
1.n
1.n
C361
C348
18p 39p
TEST_POINT
TP4
L302
C321
10n
1.2u
MIXER SHIELD
D305
T300
XFMR
6 1
C332 R337
2
330p 100.
4 3
R340
51.
C350
36.p
L306
150.n
U302
T301
SH302
XFMR
SHIELD
6 1
2
4 3 1
C362
R301
18p
470.
TEST_POINT
TP1
L305
470.0n
C342
82p