Garmin APOLLO GX SERIES, Service Manual

Page: 143 / 166

Garmin AT Rev --
© 2004 Garmin AT GX Service Manual 10-13
(1
3
1
.7
K
H
z
cl
o
ck
)
m
ic
ro
w
ir
e
In
te
rf
ac
e
P
h
as
e
P
u
m
p
C
h
ar
g
e
C
o
m
ar
at
o
r
R
e
fe
re
n
c
e
D
iv
id
er
V
a
ri
a
b
le
D
iv
id
er
D
u
al
M
o
d
P
re
sc
al
er
O
sc
il
la
to
r
(2
5
K
H
z)
(2
5
K
H
z)
1
9
.6
5
M
H
z
R
ef
D
ac
B
u
ff
er
A
m
p
V
o
lt
ag
e
C
o
n
tr
o
ll
ed
O
sc
il
la
to
r
L
o
o
p
F
il
te
r
B
in
ar
y
C
o
u
n
te
r
P
o
w
er
S
u
p
p
ly
S
y
n
c
(3
0
7
K
H
z)
R
X
L
O
T
X
L
O
(1
1
8
.0
0
0
t
o
1
5
8
.3
7
5
M
H
z)
O
r
O
p
L
o
ck
D
et
ec
t
L
o
ck
D
et
e
ct
L
D
S
y
n
th
es
iz
er
I
C
R
F
A
m
p
Figure 10-8. VHF Comm Synthesizer Block Diagram