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5-7.
SCHEMATIC DIAGRAM – BASE MAIN Section – •
BASE MAIN BOARD
1 . 9
I F A M P
0 . 7
0
3 . 2
3 . 1
1 6
1 5
1 4
1
2
3
3 . 2
2 . 7
2 . 6
3 . 2
1
3
B P F
1
2
1
2
C T 1
3 . 2
B +
(Page 21)
I F
2 . 4
3
G N D
L O
3 . 2
B A S E R F
G N D
B O A R D
B +
T X
M O D
(Page 21)
1
B +
A N T
G N D
B A S E R F
B O A R D
V C C
2
L E
D A T A
B A S E R F
C L K
B O A R D
0
(Page 21)
C H A R G E
T E R M I N A L
B +
B +
B +
D C I N 9 V
0 5
•
See page 24 for Waveforms.
See page 28 for IC Block Diagrams.
S Q S E N S I T I V I T Y
T E L O U T L E V E L
1 . 9
0 . 8
0
0 . 5
0 . 7 0 . 7
1
1 3
1 2
1 1
1 0
9
4
5
6
7
8
2 . 8
2 . 8
2 . 8
3 . 2
D I S C R I
V O L T A G E
5
B P F
4
3
B +
B +
2 . 3
3 6
3 5
3 4
3 3
R X M U T E
0
3 7
T X M U T E
1 . 6
3 8
D A T A I N
3 . 1
3 9
S Q I N
0
4 0
P L L C L K
3 . 2
4 1
P L L D A T A
3 . 2
4 2
P L L L E
4 2
G N D
4 4
N C
4 5
N C
0 . 2
4 6
T X B
0 . 7
0 . 7
4 7
D A T A O U T
0
4 8
D A T A I N
0
0
1
2
3
4
0
B +
B +
9
6 . 1
B +
6 . 1
6 . 8
3 . 9
B +
B +
1 . 6
1 . 6
1 . 9
1 . 7
0 . 7
1 . 6
1 . 9
1 . 9
1 2 1 1 1 0
9
8
7
6
5
4
3
2
1
1 3 1 4 1 5 1 6 1 7 1 8 1 9 2 0 2 1 2 2 2 3 2 4
3 . 2
1 . 6
0
0
1 . 7
1 . 6
1 . 6
0 . 6
1 . 6
1 . 6
1 . 6
2 . 7
3 2
3 1
3 0
2 9
2 8
2 7
2 6
2 5
C H G O U T
0 . 1
F L A S H 1 0 0
2 4
3 . 2
F L A S H 2 7 0
2 3
3 . 2
2 2
T O N E
3 . 2
2 1
B E L L I N
3 . 2
2 0
P A G E
G N D
1 9
3 . 2
B A T T O F F
1 8
N C
1 7
1 6
N C
1 5
N C
6 . 1
N C
1 4
0
0
2
T A L K
1 3
5
6
7
8
9
1 0
1 1
1 2
B +
B +
3 . 2
3 . 2
0
O
I
1
2
G
3 . 2
3
23
23
4 . 4
1 . 5
0 . 9
1 . 5
1 . 1
0 . 5
B +
B +
0
B +
B +
B +
B +
SPP-904
+
–
0
0
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