IC1
–
CXA1619BS
IC2
–
BA10324AF
PIN FM AM PIN FM AM
PIN
C OFF
C ON
1
0 0
16
1.38 0
1
0 0.03
2
0 0
17
0.02 0
2
0 0.41
3
2.25 2.73
18
1.41 0
3
0 0.50
4
1.5 1.50
19
0 0
4
0 3.80
5
0.22 0.22
20
2.95 3.00
5
0 0.50
6
1.26 1.27
21
0 0
6
0 0.41
7
1.26 1.27
22
1.12 1.50
7
0 2.65
8
1.26 1.27
23
1.37 1.09
8
0 0
9
1.26 1.27
24
1.42 1.01
9
0 0.41
10
1.26 1.27
25
0 0
10
0 0.34
11
1.26 1.27
26
2.69 2.70
11
0 0.50
12
0 0
27
3.00 3.00
12
0 0
13
0.35 0
28
1.55 1.52
13
0 0.41
14
0 0
29
0 0
14
0 0
15
0.55 0.22
30
0 0
IC3 – XC62FD2002
IC4 & IC101 – TC7WH74FK
PIN C OFF C ON
PIN R ON B ON
1
0
2.00
1
0 0
2
0
0
2
3.50 0
3
0
3.80
3
3.50 0
4
0 0
5
0 3.04
6
2.98 2.98
7
3.05 3.05
8
3.05 3.05
＊
R ON = RADIO ON
B ON = BUZZER ON
C OFF = CHARGE OFF
C ON = CHARGE ON
IC AND TRANSISTOR VOLTAGE CHART
25
Summary of Contents for MMR-77
Page 4: ...BLOCK DIAGRAM 4...
Page 10: ...TEST POINTS DIAGRAM 10...
Page 11: ...MAIN PCB TOP VIEW 11...
Page 12: ...MAIN PCB BOTTOM VIEW 12...
Page 13: ...CONTROL PCB TOP VIEW 13...
Page 14: ...CONTROL PCB BOTTOM VIEW 14...
Page 15: ...WIRING DIAGRAM 15...
Page 22: ......
Page 23: ...IC CIRCUIT BLOCK DIAGRAM 1 IC1 CXA1619BS 2 IC2 BA10324AF 23...
Page 24: ...3 IC3 XC62AP2002PR 4 IC4 IC101 TC7WH74FK 24...
Page 28: ...SCHEMATIC DIAGRAM 28...
