Yamaha YSP-1000 Service Manual page 65

A B C
SCHEMATIC DIAGRAM (AMP 2/2)
1
Page 63
to DSP_CB9
2
3
0 2.5
4
5.2
2.5 2.5
0 3.2
0
0 2.3
0
5.2 5.2
0.1
0.1 0.1
0 0
5
0 2.5
5.2
6
2.5 2.5
0 3.2
0
0 2.3
0
5.2 5.2
0.1
0.1 0.1
0 0
7
8
DRIVER
(TWEETER)
9
10
D E F
L9
3.3 0
5.1
0
5.1
0
0 2.5 0
5.2
2.5 2.5 2.5
0 3.2 0
2.6 0 2.6 0
0 2.3 0
2.6 0 2.6 0
5.2 5.2 5.2
0.1 0.1 0.1 0.1
0.1 0.1 0.1
0 0 0
5.2 5.1 5.2 5.1
0 2.5 0
5.0
2.5 2.5 2.5
0 3.2 0
2.6 0 2.6 0
0 2.3 0
2.6 0 2.6 0
5.2 5.2 5.2
0.1 0.1 0.1 0.1
0.1 0.1 0.1
0 0 0
5.2 5.1 5.2 5.1
DRIVER
(TWEETER)
IC703, 704:
OCTAL BUFFERS/DRIVERS
OE1 1
A1 2
A2 3
A3 4
A4
5
A5
6
A6 7
A7 8
A8 9
GND 10
G H I
2.5 0 2.5
5.2 5.2
2.5 2.5 2.5
3.2 0 3.2
2.6 0 2.6
2.3 0 2.3
2.6 0 2.6
5.2 5.2 5.2
0.1 0.1 0.1 0.1
0.1 0.1 0.1
0 0 0
5.2 5.1 5.2 5.1
2.5 0
2.5
5.2 5.2
2.5 2.5 2.5
3.2 0 3.2
2.6 0 2.6
2.3 0 2.3
2.6 0 2.6
5.2 5.2 5.2
0.1 0.1
0.1
0.1 0.1 0.1
0 0 0
5.2
5.2
5.1
5.1
DRIVER DRIVER
(TWEETER) (TWEETER)
SN74AHCT541PWR
20 V CC
19 OE2 1
OE1
18 Y1
19
OE2
17 Y2
Y3
16
2 18
A1 Y1
Y4
15
14 Y5
To Seven Other Channels
13 Y6
12 Y7
11 Y8
J K
DRIVER
(WOOFER)
0 2.5
5.2
2.5 2.5
0 3.2
0 2.6
0 2.3
0 2.6
5.2 5.2
0.1
0.1 0.1
0 0
5.1
5.2 5.1
0
0 2.5
5.2
2.5 2.5
0 3.2
0 2.6
0 2.3
0 2.6
5.2 5.2
0.1 0.1
0.1 0.1
0 0
5.2
5.1
AMP (1)
IC716: YDA138
Digital audio power amplifier
# 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.
L M N
YSP-1000
Page 67 J3
to INPUT (1)_CB507
IC701, 702, 705, 706, 709, 710, 712~715: YDA139
Digital audio power amplifier
65