Sintetizador Y Vco 25-45 W Vhf2 (146-174 Mhz) (Hoja 2 De 2) - Motorola EM200 Serie Manual De Servicio

Esquemas eléctricos del radio VHF2 25-45 W banda 2, tarjeta de circuito impreso 8486487Z04
VCO SHLD
L203 & L204
AU3
PRESEC_CLK
V_SF
L201
680nH
C2009
VCO Shield
D203
C2061
C2064
16pF
12pF
C2069 L206
L211
33nH
100nH
5.6pF
L203
680nH
C2076 C2012 C2030
0.1uF
0.1uF 3900pF
L204
DNP
680nH
DNP
D204
C2063
15pF
L213 C2066
L207
100nH
47nH
8.2pF
C2073
1pF
VCO_MOD
SH201
SHIELD
R212
30K
1
VCOBIC Shield
R231
51 C2007
C2038 C2008 C2042
C2040
0.1uF
1000pF 1000pF 0.1uF 1000pF
0.1uF
R235
18
3V
C2010 C2039
0.1uF 1000pF
C2021
.01uF
C2022
R216
R215
3.9K
L202 .01uF 4.7K
680nH
1
TX_OUT 10
TX_IADJ
2 RX_OUT 8
RX_IADJ
3
SUPER_FLTR
4 12
COLL_RFIN
PRESC_OUT
5
RX_BASE
6
RX_EMITTER RX_SWITCH
16 TX_SWITCH 13
TX_BASE
15
C2057 TX_EMITTER
20
FLIP_IN
U201
19
18pF TRB_IN
50U54
R232
47
C2056
R221
18pF
220
L214
47nH
V_SF
C2062
12pF
C2058
18pF
V_SF
R233
47
C2059
R211 R222
47K 220
18pF
L215
47nH
D205
R201
0
C2029
1000pF
SH202
SHIELD
C2041
C2011
1
1000pF
0.1uF
L209 R220
100nH 510
L208
100nH
IF200
L216
C2060
1
15pF 47nH
C2071 C2070
39pF
39pF
7
NC
NC
R230
9R
100
C2019
C2018
0.1uF
0.1uF
C2037 C2003
0.1uF
1000pF
R218
L212
R214 100nH
1K
4.7K
C2031
R219
1000pF
820 C2065
DNP
10pF
DNP 3
C2043
R203
1
0
6.8pF Q200 2
BFS540
C2044 C2032
R227
R213
100
4.7K
3.3pF 1000pF
C2081
470pF

Sintetizador y VCO 25-45 W VHF2 (146-174 MHz) (hoja 2 de 2)

4-11
TX_INJ
RX_IN J
R223
220