Motorola EM200 Serie Manual De Servicio página 101

4-12
RX
IF300
1
C339 C341 C340 C345
4.7p 3.9p
2.4p 2.4p
C334
DNP
20.p
C1121 C300
L309
5.6p 51.p
18.08n
C338
L300
10.p
18.08n
Etapas de entrada y de salida del receptor UHF1 (403-440 MHz) (hoja 1 de 2)
9V
Q306
9V
3V
R346
10.K
3V
5V
R345
10.K
5V
Q300
RX_EN
SH300
C349
SH301
SHIELD
120.p
SHIELD
1
1
C328 C370
43.p
24.p
C368 DNP
DNP C357
CR301 8.2p
36.p
C353
82.p
L310
18.08n
FRONT-END SHIELD
9R
R300
R310
LOC_DIST
10.K
15.K
R336
220.
C323 C350
120.p
1n
Q301
L301 R331
150.n
100.
R326
2.7K
C351
100n
C343
C347
R347
R330
C326 3.6p 3.6p
15.
820.
22.n
C342
C346
4.3p 4.7p
Q303
BFS540
L312
L311
18.08n
18.08n
DNP C355 C331
39.p 10.p
RX_INJ
Esquemas eléctricos de la tarjeta de circuito impreso 8486684Z01 1-25 W UHF
Q304
R334
430.
C321
120.p
L304
150.n
D305
C327
C344 C329 C335
C348
3.6p 3.3p 36.p 10.p 330p T300
XFMR
6
R338
100.
4
DNP
L313
C330 C358
10.p C333
36.p
C332 10.p
12.p
18.08n
L314
18.08n
U302
T301
XFMR
6 1
C325 L307 C324 L308
2
120.p 120.p
18.08n 18.08n
4 3
R301
C367
C366 C356
8.200p 470.
10.p
15.p
1 1
TP1
TP4
TEST_POINT
TEST_POINT
MIXER SHIELD
1
L306
470.0n
2
3
R340
51.
L302 C354
150.n 82p
SH302
SHIELD
1