Yamaha YSP 1000 - Digital Sound Projector Five CH Speaker, Service Manual

Page: 64 / 92

A
1
2
3
4
5
6
7
8
9
10
B C D E F G H I J K L M N
YSP-1000
SCHEMATIC DIAGRAM (AMP 1/2)
64
★
All voltages are measured with a 10M
Ω
/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.
2.3 2.3 2.3 2.3 2.3 2.3 2.3 2.3 2.3 2.6 2.6 5.2 5.2
0
5.2 2.6 2.6
0 0
2.3
0
0
0
0
0
2.5
5.2
0.1
0.1
0
0 0
1.5 1.5 1.5 1.5 1.5 1.7 1.7 3.2
3.3
5.1
5.1
0
0
0
0 0
1.5 1.5 1.5 1.5 1.5 1.7 1.7
2.5
2.5
3.2
2.6
2.3
5.2
0.1
0.1
5.2
5.1
0
2.6
5.2
0
0
0
0
0
2.5
5.2
0.1
0.1
0
2.5
2.5
3.2
2.6
2.3
5.2
0.1
0.1
5.2
5.1
0
2.6
5.2
0
0
0
0
0
2.5
5.2
0.1
0.1
0
2.5
2.5
3.2
2.6
2.3
5.2
0.1
0.1
5.2
5.1
0
2.6
5.2
0
0
0
0
0
2.5
5.2
0.1
0.1
0
2.5
2.5
3.2
2.6
2.3
5.2
0.1
0.1
5.2
5.1
0
2.6
5.2
0
0
0
0
0
2.5
5.2
0.1
0.1
0
2.5
2.5
3.2
2.6
2.3
5.2
0.1
0.1
5.2
5.1
0
2.6
5.2
0
0
0
0
0
2.5
5.2
0.1
0.1
0
2.5
2.5
3.2
2.6
2.3
5.2
0.1
0.1
5.2
5.1
0
2.6
5.2
0
0
0
0
0
2.5
5.2
0.1
0.1
0
2.5
2.5
3.2
2.6
2.3
5.2
0.1
0.1
5.2
5.1
0
2.6
5.2
0
0
0
0
0
2.5
5.2
0.2
0.1
0
2.5
2.5
3.2
2.6
2.3
5.2
0.1
0.1
5.2
5.1
0
2.6
5.2
0
0
0
0
0
2.5
5.2
0.1
0.1
0
2.5
2.5
3.2
2.6
2.3
5.2
0.1
0.1
5.2
5.1
0
2.6
5.2
0
0
0
0
0
2.5
5.2
0.1
0.1
0
2.5
0
5.0
2.4
2.5
0.5
0.5
10.4
5.0 5.0 5.0 5.0 5.0 0
0
0 0 0 0 0
10.4
10.4
0
5.0
0
5.2
10.4
0.5
0.5
10.4
3.3
10.4
0 0 0 0 0
0
0
2.5
5.0
5.1
0
2.5
3.2
2.6
2.3
5.2
0.1
0.1
5.2
5.1
0
2.6
5.2
0.1
AMP (2)
DRIVER
(WOOFER)
DRIVER
(TWEETER)
DRIVER
(TWEETER)
DRIVER
(TWEETER)
DRIVER
(TWEETER)
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
OE1
A1
A2
A3
A4
A5
A6
A7
A8
GND
V CC
OE2
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y8
OE1
OE2
To Seven Other Channels
A1
Y1
1
19
2 18
IC503, 504 : SN74AHCT541PWR
OCTAL BUFFERS/DRIVERS
Page 63
to DSP_CB8
L7
Page 67
to INPUT (1)_CB504
J3
IC516 : YDA138
Digital audio power amplifier
IC501, 502, 505, 506, 509, 510, 512~515 : YDA139
Digital audio power amplifier