PRESIDENT uniden BENJAMIN UT-552B, Service Manual, Page: 21 / 77

SYMB
NO.
PIN
NO.
RX/TX VOLTAGE
ł 3
t
13.7
IC 5
1
RX
0 .1
2
1.9
3 1.3
4
0
5 0
6 7.0
7 12.7
1
г
8
1r
13.7
IC 6
1
TX 7.6
2
-
3
-
4
—
5 0
6 2.6
7 4.2
8 4.2
1 r
9
'
7.4
IC601 1
TX
4
2 3.9
3 3.9
4 0
5 3.9
6 3.9
7 3.9
1
r
8
1
r
7.8
IC602 1 RX
7.7
2 7.1
3 7.4
4 7.7
5
1
6 1
7 1
8 7.8
9 3.3
10 0
11 7.2
12
0
13
7.1
14
0
15
0
1r
16
'
r
0
SYMB
NO.
PIN
NO.
RX/TX VOLTAGE
IC 1
1
RX 0.2
2
0 .1
3
0 .1
4 0
5 1.2
6 1.5
7
0
У
8
1
8.0
IC 2 1 RX 5.1
TX
2
0
3
0
4 5.1
5 5.1
6
0
7 5.1
8
-
9
-
10 2.0
11
5.1
12 2.5
13 2.5
14
-
15
5.2
16 5.1
17 1.6
18 1.6
19
3.9
20
-
21 0
1 r
22
1 r
2.4
IC 3 1 RX 0
TX
2 3.3
3 3.2
4 0
5 5.8
6 7.3
7 6.6
1
r
1
3.6
IC 4 1 RX 8.0
TX
2
1
0