Yamaha RX-Z11 Service Manual page 166

A B C
RX-Z11/DSP-Z11
INPUT 2/2
1
2
3
5.3
0
0.1
0
4
IC555 IC555 IC555
5.0
IC555
0.2
5.0
IC555
5.0
5
5.0
IC555
0
5.0
5.0
4.8
IC560 IC560 IC560
6
0.1
0
4.8
0.1
0
4.8
4.8
7
0
4.8
0.1
0
4.8
4.8
8
IC551 IC551
0.6
2.3
2.8
0
IC551 IC551
0.6 2.8 0.6
9
IC552 IC552
0.6 2.8 0.6
IC552 IC552
0.6 2.8 0.6
10
166
D E F
(U, C models)
0
0 0
3.3
XM DT
0 0
3.3 3.3
1.3 1.7
1.3 0 1.7
3.3 1.7
IC581
0 3.3
1.3 1.7
1.3 0
B-1
0 1.7
3.3
0
5.0
0.6
0.6 0.2
0.6 1.7
0.6 0
0.2 0
0.2
3.3
5.0
0.2
IC560 0 3.3
0 3.3
ZSEL
0
0
5.0
0
0 IC560
0
ISEL
4.8 4.8
0.1 0.1
0.1 0
0 1.7
0.2
0
0.1
0
3.3
0 0.1
4.8 4.8
0.1 0.1
0.1 0
0.1 1.7
0.2 0.1
3.3
0 0
0 3.3
DIGITAL IN
RSEL
IC551
IC551
0 4.8 0
4.8
IC552 IC552
0 4.8 0
0
G H
3.3
3.3 3.3 3.3 3.3
0
1.7 0
1.7 0
1.7 0
IC582
5.3 6.2
IC583
5.0
5.3
1.8
0
0
0
0.6
INPUT (2)
I J K
POINT B-1 XL581 (Pin 28 of IC581)
CB582
3.3
6.2
6.2
5.0
1.8
0
0
3.3
3.3
Page 160 A5
0
to DSP_CB542
0
(U, C models)
0
0
0
0
0
3.3
3.3
CB551
5.0
0.1
0.6
3.3
0.6
0.1
0.6
3.3
0.2
0.1
0.2
Page 160 A4
0
to DSP_CB541
0
3.3
1.7
0
0
3.3
0
1.7
3.3
3.3
0
0
# 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.
L M N
IC551, 552, 555: SN74LVU04APWR
Hex inverters
A1 1 14 VCC
A6
Y1 2 13
A2 3 12 Y6
Y2 4 11 A5
A3 5 10 Y5
Y3 6 9 A4
GND 7 8 Y4
IC556-558: SN74LS151NSR
8-input multiplexer
I 0 I 1 I 2 I 3 I 4 I 5 I 6 I 7
9 4 3 2 1 15 14 13 12
S 2
10
S 1
11
S 0
7
E
V CC = PIN 16
GND = PIN 8
= PIN NUMBERS
6 5
Z Z
IC582: TC74VHC125FT IC560: SN74AHCT00PWR
Quad bus buffer Quadruple 2-input NAND gate
1G 1 14 VCC 1A 1 14 Vcc
1B 2 13 4B
1A 2 13 4G
1Y 3 12 4A
1Y 3 12 4A
2A 4 11 4Y
2G 4 11 4Y
2B 5 10 3B
2A
5 10 3G
2Y 6 9 3A
2Y 6 9 3A
GND 7 8 3Y
GND 7 8 3Y
IC583: PQ200WNA1ZPH
Low power loss regulator
1 3 DC output (Vo)
DC input (Vin)
IC
2 4 DC output adjustment (Vadj)
ON/OFF control (Vc)
5
GND