Motorola GP88s

9B -42 Circuit Board/Schematic Diagrams and Parts List
R3805
24K
10
R3808
10K
R3804
0.1uF
RX_INJ_1_VCO
C3804
Q3801
C3801
4.7pF
R3801
C3802
NU
100nH
RX_INJ
L3801
NU
100
R3802
R3807
NU
R5_1_VCO
R5
C3806
100pF
R3806
22
L3811
100nH
C3810
NU
L3812
100nH
0.1uF
C3812
R3811
100
C3811
0.1uF
VSF_1_VCO
Vdda
R3817
0
L3813
1uH
Vdda_3_VCO
VSF
C3813
.01uF
R3818
NU
C3818
.022uF
C3822
1000pF
220
R3821
47
R3822
C3805
4.7pF
C3803
1000pF
R3803
220
27nH
L3809
C3809
27pF
C3808
15pF
1
SHIELD
SH3802
SHIELD
1
SHIELD
SH3801
SHIELD
TX_INJ_1_VCO
1K
R3816
T5
VSF
PRESC_1_VCO
T5_1_VCO
L3816
100nH
6.8pF
C3816
TX_INJ
NU
R3830
PRESC
1000pF
C3832
12K
R3832
1000pF
C3815
VSF
220
R3833
TRB_1_VCO
R3829
0
R3835
47K
TRB
47
R3834
4.7pF
15pF
C3833
C3836
6.8pF
VCO_MOD_1_VCO
10K
R3836
L3831
56nH
D3832
56nH
L3833
56pF
C3834
VCO_MOD
L3832
68nH
C3835
C3826
4.7pF
18
R3826
C3824
56pF
L3821
56nH
R3825
33
L3822
47nH
C3825
15pF
C3830
68pF
L3823
47nH
NU
R3812
10K
R3831
L3826
1uH
BIAS_ADJ
BIAS_ADJ_1_VCO
0.22uF
C3827
C3823
.01uF
33K
R3823
C3821
.01uF
R3824
22K
L3824
1uH
L3825
100nH
VCTRL_1_VCO
VCTRL
C3828
.01uF
100
R3828
.01uF
C3829
D3821
L3834
1uH
C3842
1000pF
D3831
VCC_LOGIC
SUPER_FLTR
TRB_IN
TX_BASE
TX_EMITTER
TX_IADJ
TX_OUT
TX_SWITCH
VCC_BUFFERS
GND_FLAG GND_LOGIC
PRESC_OUT
RX_BASE
RX_EMITTER
RX_IADJ
RX_OUT
RX_SWITCH
COLL_RFIN
FLIP_IN
GND_BUFFERS
U3801
50U54
18
3
19
16
15
1
10
13
14
9
17
12
5
6
2
8
7
4
20
11
R:4.6V
T: 0V
R:4V
T: 2.8V
3.3V
4.55V
R: 250mV RMS
R: 1V RMS
R, T: 3.5V-9.5V
@ 135MHz-174MHz
R:1.7V
T: 0V
T: 1V RMS
T: 250mV RMS
R:0V
T: 3.1V
3.1V
500mV
RMS
R:0.9V
T: 0V
800mV
RMS
RF mV RMS measured with high impedance probe.
ZMY0130406-A
VHF Voltage Controlled Oscillator Schematic Diagram