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R E M O V E F O R I N C R E A S E D
PANEL/BOOM MIC GAIN
JU6
R 4 7
560K
S O L D E R J U M P E R
C 4 2
A
47pF
R 7 4
1M
C 4 1
R 7 0
V B
U 7 B
5
P A N E L / B O O M M I C
+
.01uF
3.9K
6
-
R 6 9
LF347
10K
S W 2
R 4 0
R 6 8
R 6 6
2
15
DESK MIC BIAS
V B
3.9K
100
68K
R 6 7
C 3 6
R 6 4
100uF
5.1K
68K
V B
C 4 0
R 6 5
U 7 A
HANDSET/DESK MIC HI
3
+
2
.1uF
27K
-
LF347
B
N O T E :
U 6 I S R E M O V E D
ON TR20, TR30
A N D T R 4 0
V C C
R 4 3
2.7
C 2 8
220uF
U 5
L M 3 80
2
+
C
S P E A K E R H I
8
6
-
R 4 4
2.7
C 1 7
4.7uF
V C C
C 2 7
.1uF
R 4 1
2.7
C 1 2
220uF
U 4
L M 3 80
2
C 2 6
+
S P E A K E R L O
8
6
-
220uF NP
D
C 1 3
4.7uF
1
2
3
4
RX AUDIO
R 3 7
10K
C O N T R O L 5
U 9 C
4066
5
C O N T R O L 3
R126
7
9
8
18K
U 6 D
4066
S W 3
R 7 5
3
14
R 4 9
2
V B
1 K
S W 4
5 K P O T
4
13
F D P A T H
V B
U 6 A
4066
R127
1
1
2
C 2 5
18K
2.2nF
C O N T R O L 2
R 1 1
C O N T R O L 4
10K
U 3 D
9
8
14
TX AUDIO
U 9 D
LF347
4066
U 9 A
4066
C O N T R O L 1
13
JU4
R 7 7
10K
AUX INPUT 2
C 1 6
.01uF
C 1 4
.1uF
V B
S W 6
R 2 0
R 4 2
6
11
100K
100K
U 6 C
4066
C 1 5
R 2 3
4
3
.01uF
100K
R 2 1
22K
R 2 2
10
R 4 5
D 6
2N2907
C O N T R O L 5
Q 3
10K
1N4148
R 4 6
10K
D 5
1N4148
R 9 0
220
V B
C O N T R O L 1
3
4
5
6
C 8
470pF
R 1 0
R 3 4
100K
100K
C 9
C 7
R 9
U 2 B
6
R 3 5
U 2 C
7
9
.1uF
10K
5
8
.47uF
10K
10
LF347
V B
LF347
V B
R 3 6
1 K
U 2 A
D 1
3
R 7
+
1
2
1N4148
-
Q 2
1 K
2N2222
LF347
R 8
1.8M
C 6
1uF
R 1 2
10.0K
R 3 8
1 K P O T
U 3 A
R 1 4
13
2
2
1
12
3
10.0K
LF347
V B
V B
INSTALL FOR
F U L L D U P L E X
(2 PAIRS)
C 3 9
B E E P I N P U T
.1uF
V B
R 7 8
10K
R 9 6
U 6 B
R 7 9
E A R P I E C E
4066
A D J U S T
R 7 1
2
11
10
10K
100K
U 7 D
2 5 K P O T
13
14
12
V B
LF347
C O N T R O L 4
VOL HI
V O L W P R
V O L L O
S W 5
V C C
G N D
5
6
7
8
R 3 3
1.2K
C 2 4
C 2 2
C 2 3
U 2 D
12
+
14
C O M P R E S S O R O U T
13
.033uF
.033uF
.033uF
-
R 3 2
LF347
1 K
R 3 0
R 3 1
6.8K
220K
C 5
V B
V B
1uF
D 2
1N4148
R 1 8
10.0K
R 1 3
3
1
6.81K
R 3 9
1 K P O T
C 1 0
R 1 6
C 1 1
44.2K
.01uF 1%
.01uF 1%
U 3 C
R 1 9
9
U 3 B
R 1 5
6
8
7
10
44.2K
5
7.32K
LF347
LF347
V B
V B
R 1 7
10.0K
R 7 2
18K
U 7 C
9
R 7 3
C 3 8
8
E A R P I E C E
10
100
22uF
LF347
C 3 7
V B
.1uF
+5
J1
1
2
AUX PTT LED
3
AUX INPUT 2
4
VOL HI
5
B E E P I N P U T
6
C O M P R E S S O R O U T
7
V C C
8
9
10
C O N 1 0
V D D
CPI COMMUNICATIONS, INC.
Title
TR SERIES
V S S
V E E
Size
Document Number
C
Date:
Friday, January 03, 1997
Sheet
3
of
4
7
8
A
B
C
D
R e v
C