Etapas De Entrada Y De Salida Del Receptor 25-40 W Uhf2 (438-470 Mhz) (Hoja 1 De 2) - Motorola EM200 Serie Manual De Servicio

4-12
DNP
9V
9V
3V
3V
SH301
SHIELD
5V
RX_EN
5V
1
C339 C340
C341 C345
IF300 2.4pF 2.4p 3.9p
RX 4.7p
1
C1121
DNP
3.3pF L300
C338 L309
18.08n 10.p
C300 18.08n
SH300
51.p
SHIELD
1

Etapas de entrada y de salida del receptor 25-40 W UHF2 (438-470 MHz) (hoja 1 de 2)

FRONT-END SHIELD
DNP
Q306
R346
10.K
R300 R310
10.K 15.K
R345
10.K
Q300
L301
Q301
150.n
C349 R326
120.p 2.7K
C326
.022uF
R330
2113743E07
820
0662057A47
C328
C370
43.p
24.p
C368
CR301
C357
8.2p
C353
C334
36.p
82.p
20.p
DNP
DNP
L310
18.08n
Esquemas eléctricos de la tarjeta de circuito impreso 8486577U01 del radio UHF 25-40 W banda 2
DNP
9R
R334
Q304
430.
LOC_DIST
C350
120.p
C323
R336
220. 1n
R331
100
C351
0.1uF
2113743E20
C346 C342 C343 C347 C344 C348 C329
R347
4.3p 4.7p 3.6p 3.6p 3.6p 3.3p 36.p
15
0662057A05
Q303
BFS540
C355
L312
L311 C331 C332 L313 C333
39.p
18.08n 12.p
18.08n 10.p 10.p 18.08n
DNP
C325 C324
L307
120.p
18.08n 120.p
RX_INJ
C366 C356
10pF 15pF
C321
120.p
MIXER SHIELD
L304
150.n
4880142L01
D305
T300
C335 C327
R338
XFMR
330p
10.p 100.
6 1
2
4 3
C330
10.p C358
36.p
DNP
L314
18.08n
U302
T301
XFMR
6 1
SH302
2 SHIELD
L308
18.08n
4 3
C367
R301
8.2pF
470.
TEST_POINT TEST_POINT
TP4 TP1
L306
560nH
2413926K32
R340
51.
L302 C354
150.n
82p
1