Motorola ASTRO Digital XTL 5000

Schematics, Component Location Diagrams, and Parts Lists: HUD4022A/HUD4025B (VHF) Main Board 7-25
6881096C74-B May 25, 2005
Figure 7-23. HUD4022A/HUD4025B Frequency Generation Unit VHF Transmit Injection Schematic
APCO VHF TX Buffers
NP
73D02970C73-O
SHEET 18 OF 23
620.
16.p
R3882
C3790
C3917
470.p
C3921
3.p
3.p
7.5p
C3919
10.p
C3920
C3918
L3785
47.n
L3787
27.n
R3863
R3858
30.
R3859
180. 180.
C3876
R3764
10.n
C3871
10.n
2.K
2.K
R3757
1
TP6767
TP67681
TEST_POINT
TP6769
TEST_POINT
R3835
0.
1
R3842
C3872
100n
300.
18.
300.
82.
R3841
R3816
R3834
R3815
C3757
470.p
82.
18.p
C3875
L3779
120.n
470.p
C3865
180.
R3818
180.
R3824
30.
R3823
C3862
470.p
C3864
470.p
C3863
R3804
18.p 56.n
300.
L3778
300.
R3809
R3803
C3758
470.p
R3820
18.
B(,1),A(,1)
TX_Buffer_EN
B(,1),A(,1)
B(,1),A(,1)
B(,1),A(,1)
B(,1),A(,1)
B(,1),A(,1)
TX_Inj
Keyed_9.1
B(,1),A(,1)
From_TX_VCO
B(,1),A(,1)
B(,1),A(,1)
Prescaler_Inj
B(,1),A(,1)
B(,1),A(,1)
B(,1),A(,1)
B(,1),A(,1)B(,1),A(,1)
B(,1),A(,1)
B(,1),A(,1)
Q3758
B(,1),A(,1)
R3819
180.
15.K
R3791
100n
C3754
100n
C3755
Q3759
R3792
5.6K
620.
R3807
R3795
IF3710
10.K
470.p
C3817
4.7K
R3797
22.