Yamaha rx-v561 Service Manual page 65

A B C
DSP 5/6
1
CB512
2
Page 70 D10
to MAIN (1)_CB161
3
CB501
Page 69 A5
to MAIN (1)_CB101
4
CB502
5
Page 70 F3
to MAIN (1)_CB164
6
to DSP 6/6
7
Page 71 C2
to VIDEO (1)_CB305
CB504
8
CB516
Page 68 A7
to OPERATION (2)_CB232
9
to DSP 6/6
10
D E F
FL
SL
SW
C
ANALOG L
G H I
to DSP 1/6
to DSP 2/6
to DSP 1/6, 2/6, 4/6
to DSP 3/6
to DSP 1/6 - 4/6
to DSP 4/6
A
to DSP 6/6
Not applied to these models.
J K L
to DSP 2/6
0 3.3 3.3
3.3
3.3
3.3
to DSP 1/6 - 4/6
DSP 1/6
to DSP 3/6, 4/6
4.9
0
IC501
0
0
3.3
IC501
4.9
3.3
0
IC501
0
0
3.3
IC501
4.9
3.3
0
1
B
to DSP 1/6
3.3 3.3
IC505 IC505
3.3
3.3
3.3
3.3
C
3.3 3.3
IC505 IC505
3.3
3.3
3.3
3.3
0
to DSP 2/6
# All voltages are measured with a 10MΩ/V DC electronic voltmeter.
# 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.
M N
RX-V561/HTR-6050
IC501: SN74AHCT08PWR
Quadruple 2-input positive-AND gates
1A 1 14 Vcc
1B 2 13 4B
1Y 3 12 4A
2A 4 11 4Y
2B 5 10 3B
2Y 6 9 3A
GND 7 8 3Y
IC505: SN74LV08APWR
Quadruple 2-input positive-AND gate
1A 1 14 Vcc
1B 2 13 4B
1Y 3 12 4A
2A 4 11 4Y
2B 5 10 3B
2Y 6 9 3A
GND 7 8 3Y
POINT 1 Reset
Pin 4 of Q501 A
Pin 13 of IC101 B
Pin 12 of IC201 C
AC cable ON AC cable OFF
Pin 4 of Q501 A
Pin 13 of IC101 B
Pin 12 of IC201 C
AC cable ON
65