
MX-KA7
1-22
1.
Block Diagram
2.
Test Circuit
Description of major ICs STK412-030 (IC301) : Dual low noise operational
TR41
TR51
R41
R51
D41
D51
D43
D42
D53
D52
Comparator
Comparator
13
15
14
9
1110
16
8
12
18
6
5
2
1
4
3
17
TR1
TR2
TR3
TR4
TR5
TR6
TR7
TR8
TR9
TR10
TR11
TR12
TR13
TR14
TR15
TR16
TR17
TR18
TR19
TR20
D1
R1
R2
R3
R4
R5
R6
R7
R11
R12
R13
R14
R15
R16
R17
C1
C2
C11
C12
D2
D12
7
SUB
(*1)Metal Plate Cement Resistor 0.22ohm+-10%(5W)
SUB.GND
1 2 3 4 5 6 7 8 9 10 11 12 13 14
17 18
15 16
+VH
+VL
GND
-VL
-VH
GND
Ch1 OUT
GND
Ch1 IN
Ch2 IN
GZA
15X
GZA
15X
1.5kohm
/1W
1.5kohm
/1W
100uF
/100V
100uF
/50V
100uF
/50V
100uF
/100V
100uF
/100V
100uF
/100V
100ohm/1W
100ohm/1W
*1
*1
*1
*1
56kohm
56kohm
100pF
100pF
3pF
3pF
560ohm
560ohm
33kohm
100uF
/10V
100uF
/10V
56kohm
56kohm
470pF
470pF
2.2uF
/50V
2.2uF
/50V
1kohm
1kohm
3uH
3uH
Ch2 OUT
4.7ohm
4.7ohm
4.7ohm/1W
4.7ohm/1W
0.1uF
0.1uF
Summary of Contents for CA-MXKA7
Page 23: ...MX KA7 1 23 1 Pin descriptions 2 Block diagram Optical disc ICs BA5936S IC621 ...
Page 35: ...A B C D E F G 1 2 3 4 5 2 1 MX KA7 n Tuner section ...
Page 36: ...A B C D E F G 1 2 3 4 5 2 2 n Main section MX KA7 ...
Page 37: ...A B C D E F G 1 2 3 4 5 2 3 MX KA7 n CD section ...
Page 38: ...A B C D E F G 1 2 3 4 5 2 4 MX KA7 n Amplifier ...
Page 39: ...A B C D E F G 1 2 3 4 5 2 5 MX KA7 n FL Display and CPU Control ...
Page 40: ...A B C D E F G 1 2 3 4 5 2 6 MX KA7 n Power transformer section ...
Page 41: ...A B C D E F G 1 2 3 4 5 2 7 MX KA7 n Block diagram ...
Page 42: ...A B C D E F G 1 2 3 4 5 2 8 MX KA7 n Wiring diagram ...
Page 43: ...A B C D E F G 1 2 3 4 5 2 9 MX KA7 n Main top PWB ...
Page 44: ...A B C D E F G 1 2 3 4 5 2 10 MX KA7 n Main bottom PWB ...
Page 45: ...A B C D E F G 1 2 3 4 5 2 11 MX KA7 n FL Display and CPU TOP ...
Page 46: ...A B C D E F G 1 2 3 4 5 2 12 MX KA7 n FL Display and CPU BOTTOM ...
Page 47: ...A B C D E F G 1 2 3 4 5 2 13 MX KA7 n Power Amp PWB ...
Page 48: ...A B C D E F G 1 2 3 4 5 2 14 MX KA7 n Power trans PWB ...
Page 59: ...3 11 MEMO ...