Figure 8-54. Receiver Vco Circuit - Motorola APX 1000 Detailed Service Manual

Schematics, Boards Overlays, and Parts Lists: Transceiver (RF) Boards: UHF1 (84012313002 / PC000353A01)
IF3100
DC_SUPER_FILTER_5V
1 IF
IN
IF3102
1 IF
GPO1 IN
IF3101
1 IF
GPO2 IN
IF3103
VCTRL
IF
1
IN
DC_SUPER_FILTER_5V
R3114
C3109
C3111
27K
0.1UF
100PF
C3101
5.6PF
C3107
6.8PF
C3113
7.5PF
C3108
2.7PF
DNP
D3102
L3101
1SV279
390NH
L3112
L3106 C3110
5.4NH
3.9PF
15NH
C3100
D3103
100PF
1SV279
GPO1
Q3128
47K
UMC5NT2
47K
10K
4.7K
VCO_TX
4
R3118 5
18K 8
NC
C3158 C3122
0.1UF 100PF
C3102
R3159
L3125
100PF
68
390NH
C3104
10PF
L3119
820NH
L3100
27NH
C3159 R3103
2.2PF
18
Q3123
2
R3106
R3105
NE856
300 300
C3115
6.8PF
C3120
100PF
L3126
820NH
C3116
6.8PF
C3105
R3127
82 100PF
GPO2
GPO1
U3001
SKY13251
3
RF1 V1
6
RF2 V2
7
RF3 V3 NC
1
RFC
C3161
100PF
8-121
IF3104
IF
1 VCO_OUT
OUT

Figure 8-54. Receiver VCO Circuit