Loewe INDIVIDUAL SOUND PROJECTOR Service Manual page 66

A B C
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 x 5
(TWEETER)
9
10
D E F
L9
0
3.3
5.1
0
5.1
0
0 0
2.5
5.2
2.5 2.5 2.5
0 3.2 0
2.6 2.6
0 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 0
2.5
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 x 5
(TWEETER)
IC703, 704: SN74AHCT541PWR
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
No replacement part available.
サービス部品供給なし
0
2.5 2.5
5.2 5.2
2.5 2.5 2.5
3.2 0 3.2
2.6 2.6
0
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
0
2.5 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 x 5 DRIVER x 5
(TWEETER) (TWEETER)
20 V CC
19 OE2 1
OE1
18 Y1 19
OE2
17 Y2
16 Y3
2 18
A1 Y1
15 Y4
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
2.6
0
2.3
0
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
SP-1
Page 67 J3
to INPUT (1)_CB507
IC701, 702, 705, 706, 709, 710, 712-715: YDA139
Digital audio power amplifier
65
65