Figure 8-38. Vco Circuit - Motorola APX 3000 Detailed Service Manual

Schematics, Boards Overlays, and Parts Lists: Main Board Block: 700–800 MHz (84012501002)
C3006
33PF
TP3001
TEST_POINT
R3002
0
IF3005
VCO_VCTRL IF
1
IN
L3009
150NH
C3007
33PF
IF3001
1 IF
DC_SUPER_FILTER_5V
IN
IF3002
1 IF
GPO1 IN
IF3003
1 IF
GPO2 IN
IF3004
1 IF
GPO8 IN
VR3012
C3014 C3022
1SV279
3.3PF 1.8PF
1 2
VR3013
L3008 C3015 C3023
1SV279
150NH 3.3PF 2.4PF
1 2
L3001
15NH
GPO1
L3016
120NH
C3008 C3012
R3018
33PF
.1UF 51K
VR3014
C3016 C3024
1SV279
2.2PF 1.1PF
1 2
VR3015
C3017 C3025
1SV279
2.7PF 3PF
1 2
VR3011 VR3004
1SV279 1SV279
L3002
15NH
GPO2
L3010
120NH
C3005 C3013 R3019
33PF .1UF 51K
DC_SUPER_FILTER_5V
R3036
R3030
20K 20K
2 Q3038
NE856
C3026
3PF
R3032
18
R3040
C3027
110
2.7PF
L3041
150NH
C3042
33PF
1 G
L3047
150NH
C3046
33PF
DC_SUPER_FILTER_5V
R3031 R3037
20K 20K
2 Q3039
NE68519
C3028
3.3PF
R3034
18
C3029
R3043
3.9PF
150
L3044
150NH
C3045
33PF
1
G
Q3035
MGSF1N02LT1G
DC_SUPER_FILTER_5V
R3066
33
C3068
C3067
33PF
0.1UF
DC_SUPER_FILTER_5V
C3069
VR3020 9PF
C3050 C3054
1SV279
2.2PF 1.5PF
1 2
R3058
R3061
20K
20K
VR3021
C3051 C3055
1SV279
2.2PF 2.4PF
Q3062
1 2 2
NE68519
C3056
1.2PF
R3059
L3003
18
15NH
C3057 R3063
1.8PF
160
L3064
150NH
GPO8
L3019
120NH
C3065
33PF
1
G
C3018 C3049 R3052
Q3060
33PF .1UF 51K
MGSF1N02LT1G
8-67
IF3070
IF
VCO_OUT
1
OUT

Figure 8-38. VCO Circuit