Yamaha MCR-E810 Service Manual page 34

A B C
RX-E810/RX-E410/NX-E800
1 OPERATION 2/2
2
3
4
5
6
7
8
9
10
# All voltages are measured with a 10MΩ/V DC electronic volt meter.
# Components having special characteristics are marked s and must be replaced
with parts having specifications equal to those originally installed.
# Schematic diagram is subject to change without notice.
34
D E F G H I
11.2
0.1
0
0
0
0.1
0
-11.1
3.4 5.0
3.8
3.8
0
3.4
0.4
0
0
0.4
0
0
0
0
0
0
0
0
0
IC703: SN74LV32ANSR
Quadruple 2-Input positive-OR gates
1A 1
1B 2
1Y 3
2A 4
2B 5
2Y 6
GND 7
J K L
Page 37 G2
to INPUT (1)_CB206
OPERATION (2)
IC704: MM74HCT08SJX IC707: NJM2068MD-TE2
Quadruple 2-Input AND gate Dual operational amplifier
14 Vcc 1A 1 14 Vcc
OUT 1 8 +V
1
13 4B 1B 2 13 4B
–IN 1 2 7 OUT
+ – + –
12 4A 1Y 3 12 4A
+IN 3 6 –IN
1
2A 4 11 4Y
11 4Y
–V CC 4 5 +IN
2B 5 10 3B
10 3B
2Y 6 9 3A
9 3A
GND 7 8 3Y
8 3Y
M N
CC
2
2
2