EFJohnson 7780 Two-Way Radio User Manual


 
SCHEMATIC DIAGRAMS AND COMPONENT LAYOUTS
8-13
November 1999
Part No. 001-7780-500
D
E
L
K
B
D
N
G
E
P
S
P
S
D
N
G
L
5
+
D
N
G
D
N
G
E
C
I
M
AXN720535
J1
0
2
9
1
8
1
7
1
6
1
5
1
4
1
3
1
2
1
1
1
0
1
9
8
7
6
5
4
3
2
1
C
I
M
LN1371G-(TR)
DS1
LN1371G-(TR)
DS2
220
R6
33P
C5
10K
R8
2SA1576
Q1
C
HC8
C
HC7
C
HC6
C
HC5
D
N
G
2
S
Y
E
K
3
R
Y
E
K
2
R
Y
E
K
1
R
Y
E
K
0
R
Y
E
K
3
S
Y
E
K
1
S
Y
E
K
0
S
Y
E
K
D
N
G
C
HC1
S1
C
HC2
C
HC3
S2 S3
C
HC4
100K
R4
33P
C4
100K
R3
100K
R2
33P
C3
33P
C2
33P
C1
33K
R1
SP1
MC1
F1
F2
F3
Microphone
Speaker
3-KEY BOARD SCHEMATIC