Service
Mini Med Series
0000061122
Figure 5-12, Ready Tone Generator Schematic
(For Serial #'s Below 1900)
+
+
+
+
+
Pin #
3
Pin #
2
Pin #
1
Pin #
3
Pin #
2
Pin #
1
TRG1
CNT1
RST
1
TRG2
CNT2
RST
2
DCG2
THR2
OUT2
DCG1
THR1
OUT1
VCC
GND
PJ1
3
39
0
R1
R2
39
0
R9
50
K
C1
33
uf
R3
1K
C2
1u
f
R4
10
K
CR1
1N
40
04
2N
22
22
A
Q2
R5
10
K
R6
1K
C4
1uf
U2 NE556
14
C3
C5
1u
f
1u
f
+12
6
3
4
8
11
10
5
2
1
9
12
13
7
C5
.1
uf
C6
10
0uf
C7
10
uf
BEEPER
-
+
R7 60
K
R8 10
0K
U1 4N3
7
1
2 3
6
5
4
U1 1N4
37
5-29
Summary of Contents for Mini-Medical Series
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Page 26: ...Introduction Mini Med Series 0000061122 ...
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Page 44: ...Installation Mini Med Series 0000061122 Notes 2 14 ...
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Page 120: ...Parts Mini Med Series 0000061122 6 22 Notes ...
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Page 129: ...Accessories Mini Med Series 0000061122 Notes 7 7 ...
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