Motorola PRO3150 Manual De Servicio página 134

4-82
5V_1_FN
5V (SOURCE)
C3705
0.1uF
VCTRL_1_FN
VCTRL
Q3721
R: 5V
UMC5N
R5_1_FN R5_2_FN
T: 0V
4
R5
10K
47K
4.7K
R: 0V
47K
T5_1_FN
T: 5V
T5
3.5 - 9.5V
@135-174MHz
VCO_MOD_1_FN
VCO_MOD
SH3701 SH3702
SHIELD SHIELD
1 1
Figura 4-51a. Diagrama esquemático del sintetizador de VHF (136-174 MHz) (tarjeta de circuito impreso nº 8480675Z01)
C3701
.01uF
3
K3
2
K2
C3702
1
K1
.01uF
D3701
C3703
.01uF
C3704
.01uF
3
K3
2
K2
1
K1
13.2V
D3702
C3714
4.7uF
C3706
4.7uF C3716
100pF
C3715
100pF
R3721
470
5V R3722 C3722
1K 0.1uF
C3721
3
0.1uF
2
R3723
1
100
TP3701
1
C3724
1uF
RF mV RMS measured with high impedance probe.
5V
C3711
10uF
L3701
390nH
4
A3
R3701
5
A2
100
6
A1
C3710
2.2uF
4
BIAS_ADJ
A3
5
A2
6
A1
R3702 BIAS_ADJ_1_FN
R3705
NU 33K
C3725
C3708
R3726
NU
0.1uF
NU
C3707
22pF
R3703 R3704
C3709
150 150
0.1uF
C3746
3Vpp 220pF
@1.05MHz
25
16
28
LOCK_1_FN
46
LOCK
4
45
43
38
37
TRB_1_FN
3
TRB
2
1
48
11
12
14
15
R3741
16_8MHz_1_FN 100
41
16.8MHz
19
24
23
120mV RMS
C3741
NU
400mV RMS
C3761
56pF
C3762
R3762
330pF
NU
U3711
7.5V
ADP3300
2
SWB_PLUS_1_FN
NR
4 5
OUT IN SWB+
6 3
ERR SD
C3712
1
C3713
0.1uF
2.2uF
2.5V - 3.5V
1
TP3702
WARP
NC3
31
INDMULT
NC2
29
SFOUT
NC1
17
C3726
ADAPTSW
R3727
8.2pF
LOCK CCOMP 100K
42
IADAPT REFSEL
18
IOUT
PREIN
32
C3755
TEST2 SFBASE
PRESC_1_FN
27 2.2uF C3727
TEST1 SFCAP
100pF
26
R3752
330K
U3701
AUX4 BIAS2
63A27 39
AUX3 BIAS1
40
AUX2 R3751
200K
AUX1 VBPASS
C3752
21
C3753
PVREF 1000pF
35
4.7uF
VMULT4 DATA_1_FN
VMULT3 SFIN DATA
30
VMULT2 DATA MODIN_1_FN
7
VMULT1 MODIN MODIN
10
CSX_1_FN
CSX
MODOUT CEX
9
FREFOUT CLK
8
XTAL2
CLK_1_FN
C3742 C3745
XTAL1
220pF 220pF
C3744
C3743
220pF 220pF
Y3761
R3761
16.8MHz 45J49
47K
1 2
IN OUT
C3763 C3731 C3732
R3760
.01uF
1.6pF .01uF
NU
C3735
D3761
NU
Y3762
OSC_16.8MHZ
16.8MHz
R3763
NU
NU
4 VDD 1
GND
5V
C3751
NU
PRESC
VSF_1_FN
VSF
C3754
0.1uF
4.55V
CLK
L3731
Vdda_1_FN
2.2uH
Vdda
C3733 C3734
2.2uF
.01uF
3.3V
ZMY0130322-C