JVC KS-FX288 Service Manual page 21

QQ
3 7 63 1515 0
HD74HC126P (IC751) : Changer control
1.Pin arrangement
1C 1
1A 2
1Y 3
2C 4
2A 5
2Y 6
GND 7
( TOP VIEW )
3. Block diagram
TE
L 13942296513
UPC1228HA(IC901):Head amp
IN1
1
NFB1
2
OUT1
3
VCC
www
4
GND
5
OUT2
6
.
NFB2
7
IN2
8
UPC1228HA
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14 Vcc
13 4C
12 4A
11 4Y
10 3C
9 3A
8 3Y
1A
1C
2A
2C
3A
3C
4A
4C
ANP1
x ao
y
i
ANP2
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8
2. Pin function
Input
C A
L X
H L
H H
Q Q
3 6 7 1 3
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.
2 9 9 4 2 8
Output
Y
Z
L
H
1Y
2Y
1 5 0 5 8 2 9 9 4
3Y
4Y
m
co
KS-FX288
9 9
2 8 9 9
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