Motorola PRO3150 Manual De Servicio página 137

R5
R5_1_VCO
R3802
100 R:4.6V
T: 0V
C3810
C3804
NU
0.1uF
R3807
L3801 1K
100nH NU 800mV
RX_INJ_1_VCO
C3801
RMS
RX_INJ
R3806
4.7pF Q3801
22
R3801
C3802
220
R3808
NU
NU
R3804
10
R3805
10K
24K
R:0.9V
T: 0V
C3803 R3803
220
1000pF
RF mV RMS measured with high impedance probe.
SH3801 SH3802
SHIELD SHIELD SHIELD SHIELD
1 1
Vdda
Vdda_3_VCO
3.3V
R:4V
T: 2.8V
R3811
100
L3811 L3812 C3811 C3812
100nH 100nH 0.1uF 0.1uF
18
10
TX_OUT
C3806
8
RX_OUT
12
100pF
PRESC_OUT
U3801
7
RX_SWITCH
50U54
C3805 13
TX_SWITCH
4.7pF
11
17
C3808
15pF
C3809
L3809
500mV
27pF 27nH
RMS
T5_1_VCO
T5
TX_INJ_1_VCO
3.1V
PRESC_1_VCO
R3816
L3816
VSF
100nH
1K
TX_INJ
C3816
6.8pF
Figura 4-52b.
VSF
VSF_1_VCO
4.55V
L3813
1uH
R3817
0
C3822
C3813
R3818 1000pF R: 250mV RMS
.01uF
0
NU
R3822
R3821
C3818
220
47
.022uF
14
1
TX_IADJ
2
RX_IADJ
3
SUPER_FLTR R3825
R3826
4
COLL_RFIN
5
RX_BASE 33 18
6
RX_EMITTER
16
C3823
TX_BASE
15 .01uF
R3831
TX_EMITTER
20
FLIP_IN
10K
19
TRB_IN
9
C3821
R3824
.01uF 22K
R3832
12K
C3832
1000pF
C3815
T: 250mV RMS
1000pF
R3834
R:0V
R3833
T: 3.1V 47
220
C3833 C3834
R3830 R3829 4.7pF
56pF
TRB
0 NU 0 TRB_1_VCO
R3836
R3835
VSF
PRESC 10K
47K
VCO_MOD_1_VCO
D3832
Diagrama esquemático del oscilador controlado por voltaje de VHF (136-174 MHz) (tarjeta de circuito impreso nº 8480675Z01)
R: 1V RMS
D3821
C3830
C3825
68pF
15pF
C3824 L3821 L3822 L3823
L3825
56pF 56nH 47nH 47nH
100nH
C3826
4.7pF
L3826
1uH R:1.7V
T: 0V
BIAS_ADJ_1_VCO
R3812
BIAS_ADJ
100K NU
C3827
R3823
0.22uF
33K
C3835
D3831
T: 1V RMS
6.8pF
C3836
15pF
L3832 L3833
L3831
68nH 56nH
56nH
VCO_MOD
ZMY0130406-O
4-85
R, T: 3.5V-9.5V
@ 135MHz-174MHz
VCTRL_1_VCO
L3824 R3828
1uH
100
VCTRL
C3828
.01uF
C3829
.01uF
L3834 C3842
1uH 1000pF