Service manual

12
2 1 . 4 M H z
V C O &
B u f f e r s
S
y
n
t
h
L o c k
D e t e c t
I F C
h
i
p
P
r
e
-
e
m
p
h
a
s
i
s
,
L
i
m
i
t
i
n
g
&
H
P
F
-
+
D 1 , D 1 0 0
T
R
2
T R 1
X
T
A
L
3
X
T
A
L
1
,
2
D 1 0 1 , 1 0 2
I C 1 0 1 ,
T R 1 1 3 , 1 1 4
T
R
1
0
2
-
1
0
5
,
V
C
1
0
1
,
1
0
2
,
1
0
4
D
1
0
3
I
C
1
0
4
,
D
3
,
T
R
1
1
6
,
1
1
7
V R 1 0 0
V R 1 0 1
T R 1 1 2
X
T
A
L
4
D
2
I
C
1
T
R
1
2
0
I
C
1
0
5
T
R
1
1
9
T
R
1
0
1
T R 1
0
0
I
C
2
I
C
3
T
R
1
1
5
,
1
1
1
I C 1 0 0
X
T
A
L
1
0
1
O
s
c
N
o
i
s
e
V
o
l
t
a
g
e
R
x
A
F
O
u
t
C
l
o
c
k
D
a
t
a
1 W / 2 5 W
G P S D a t a
I n p u t
E
n
a
b
l
e
1
T
x
A
F
I
n
R
x
A
F
I
n
T o 2 n d R x
L 1 0 , C 2 1 4 ,
C 2 1 5
N M E A
R e c e p t i o n
R 2 2 5 , D 5 ,
I C 4
N
M
E
A