Motorola Professional GP340 Service Manual page 190

4-10
5V_1_FN
(SOURCE) 5V
C3705
0.1uF
VCTRL_1_FN
VCTRL
R: 5V Q3721
UMC5N
T: 0V
R5_2_FN
R5_1_FN
4
R5
UMC5N
T5_1_FN
R: 0V T5
T: 5V
3.5 - 9.5V
@135-174MHz
VCO_MOD_1_FN
VCO_MOD
SH3701 SH3702
SHIELD SHIELD SHIELD SHIELD
VHF (136-174 MHz) Synthesizer
C3701
.01uF
4
3
K3 A3
2
A2 5
K2
C3702 1
A1 6
K1
.01uF
D3701
C3703
.01uF
C3704
.01uF 3 4
2 K3 A3
5
1 K2 A2
6
13.2V
K1 A1
D3702
R3702
0 NU
C3706 C3714
4,7uF 4,7uF
C3707
22pF
R3721 R3703
150
470
5V R3722 C3722
1K 0.1uF
C3721
3
0.1uF
2
1 R3723
100
1
TP3701
C3724
1uF
RF mV RMS measured with high impedance probe.
U3711
5V
ADP3300 ADP3300
2
NR
5
4
OUT IN
C3715 C3711 ERR SD
3
6
470pF 10uF
L3701
1
390nH
R3701
100
C3710
2.2uF
R3705
33K
BIAS_ADJ
C3708
0.1uF
BIAS_ADJ_1_FN
C3709
C3746
0.1uF
220pF
R3704
150 C3725
0.1uF 25 31
WARP NC3
NU
29
16
INDMULT NC2
17
3Vpp 28
SFOUT NC1
46
@1.05MHz
LOCK_1_FN
ADAPTSW
42
4
LOCK
LOCK CCOMP
18
45
IADAPT REFSEL
43
IOUT
32
PREIN
38 27
R3726
TEST2 SFBASE
37 26
47K
TEST1 SFCAP
NU
3 39
TRB_1_FN AUX4 BIAS2
40
2
TRB AUX3 BIAS1
1
AUX2 U3701
48
21
AUX1 VBPASS
35
09Z88 09Z88 PVREF
11
30
VMULT4
12 SFIN
VMULT3
14
VMULT2
15
VMULT1 7
DATA
10
41 MODIN
R3741
16_8MHz_1_FN MODOUT
19
9
FREFOUT
CEX
16.8MHz 100
C3741 24 8
XTAL2 CLK
23
56pF
XTAL1
120mV RMS
NU
R3761
Y3761
47K
16.8MHz
400mV RMS
1 2
IN OUT
GND
C3761
3
56pF
R3760
D3761
C3735
.01uF
NU
2
R3762 C3762
FADJ
2.2K
330pF R3763
NU
100
4
NU
GND
OUT
3
7.5V
SWB_PLUS_1_FN
SWB+
C3713
C3712
2.2uF
0.1uF
2.5V - 3.5V
1
TP3702
C3726
R3727
8.2pF
100K
C3727
PRESC_1_FN
C3755
PRESC
2.2uF
100pF
VSF_1_FN
R3752
C3754
R3751 C3752
C3753
330K
0.1uF
200K 1000pF
4.7uF
4.55V
DATA_1_FN
DATA
MODIN_1_FN
MODIN
CSX_1_FN
CSX
CLK_1_FN
CLK
C3744 C3742 C3745 C3743
220pF 220pF 220pF 220pF
L3731 Vdda_1_FN
2.2uH
C3734
C3763 C3731 C3732 C3733
1.6pF .01uF .01uF 2.2uF .01uF
3.3V
0
NU
Y3762
OSC_16.8MHZ
NU
VDD 1
5V
C3751
0.1uF
NU
OSC_16.8MHZ
VHF PCB 8486062B12 / Schematics
VSF
Vdda
0102726B15
VHF_FRACN
ZWG0130022-C
ZWG0130022-C