JVC XV-S300BK Service Manual page 26

XV-S300BK/XV-S302SL
74VHCT08ASJ-X (IC704) : 2-input AND gate
1.Pin layout
1G 1
1A 2
1Y 3
2G 4
2A 5
2Y 6
GND 7
MM1565AF-X (IC951) / MM1563DF-X (IC953) : 500mA Regulator
1.Block diagram
Vin
Cont
GND
2.Pin function
Pin No. Symbol
1
2
3
4
5
6
7
1-26
14 VCC
13 4G
12 4A
11 4Y
10 3G
9 3A
8 3Y
Bias
Thermal
Driver
shutdown
Vout Output terminal
NC Non connect
GND Connect to ground
Cn Noise decrease terminal
Cout Control terminal
Sub Substrate (Connect to ground)
Vin Input terminal
2.Truth table
G A Y
L L Z
L H Z
H L Z
H H L
Current
limiter
Cn
Function
Vo
Reference