Sintetizador Y Vco Vhf2 (146-174 Mhz) (Hoja 2 De 2) - Motorola EM200 Serie Manual De Servicio

Esquemas eléctricos de la tarjeta de circuito impreso 8488977U01 del radio VHF 1-25 W banda 2 (rev. P9)
L203
680nH
DNP
DNP
C2076
C2012 C2030
100.n 0.1uF 3.9n
SH201
SHIELD
1
VCO Shield
V_SF
L201
680nH
C2009 C2038
100n 1n
C2021
10n
C2061
C2064
D203
12p
10.p
L211 C2069 L206
C2057
100nH 5.6p 33.0n
18p
R232
47.
C2056
18p
L204
680nH
C2063
C2062
15.p 12p
D204
L213 C2066 L207
100nH 8.2p 47.0n C2073
1.p
V_SF
R211
VCO_MOD
47.K
R212
30.K
D205
R231
51.
R235 C2040 C2008 C2007 C2042 C2041
18. 1.n 0.1uF 0.1uF 1.n 1.n
3V
100nH
C2010 C2039
100n 1n
L202
680nH
C2022 R216 R215
10n 3.9K 4.7K
1 10
TX_IADJ TX_OUT
2 8
RX_IADJ RX_OUT
3
SUPER_FLTR
4 12
COLL_RFIN U201 PRESC_OUT
5
RX_BASE
50U54
6 7
RX_EMITTER RX_SWITCH NC
16 13
TX_BASE TX_SWITCH NC
15
TX_EMITTER
20
FLIP_IN
19
TRB_IN
R221
220.
L214
V_SF
47nH
R218
1.K
C2058
18p
R233
47.
R222
C2059
220.
18p
L215
47nH
R201 C2029
0. 1n
C2011
0.1uF
L209 R220 L208
510. 100nH
C2060
15p IF200
1
L216
47.0n
C2071
C2070
39.p 39.p
R230
9R
100.
C2018 C2019
100n 100n
C2037 C2003
1n 100n
R214 L212
4.7K 100nH
C2065
C2031 R219
10p
1n 820.
DNP
DNP
C2043 R203
0. 3
6.8p
1 Q200
BFS540
2
C2044 R213 R227 C2032
3.3p 4.7K 100. 1n
SH202
SHIELD
1

Sintetizador y VCO VHF2 (146-174 MHz) (hoja 2 de 2)

4-35
TX_INJ
RX_INJ
R223
220.
VCOBIC Shield
73D02968C63-0
SHEET 5 OF 8