Figure 8-55. Transmitter Vco Circuit - Motorola APX 1000 Detailed Service Manual

8-122
DC_SUPER_FILTER_5V

Figure 8-55. Transmitter VCO Circuit

IN
GPO1
IN
GPO2 IN
D3135
1SV279
IF3105
IF
1
VCTRL IN
L3134
390NH
C3133
D3136
100PF
1SV279
Schematics, Boards Overlays, and Parts Lists: Transceiver (RF) Boards: UHF1 (84012313002 / PC000353A01)
DC_SUPER_FILTER_5V
10K
R3149
6.8K
L3158
C3144 R3146
C3142
390NH
100PF 8.2K
0.1UF
L3150
390NH
C3103
2.7PF
DNP
C3140
4.7PF
C3147
4.3PF
2 Q3156
NE856
C3141
4.7PF
C3151
8.2PF
C3154
L3139 L3145
51PF
15NH 13NH
C3143
3.9PF
L3159
270NH
C3152
5.6PF
R3160
150
GPO2
Q3161
47K
UMC5NT2
47K
4.7K
R3158
150
C3160 R3108 C3112
4.7PF 18 100PF
VCO_TX
R3107 R3109
300 300
C3106
100PF