Yamaha MCX-1000 Service Manual page 70

A B
MCX-1000
SCHEMATIC DIAGRAM (MAIN: NETWORK Block)
1
2
3
4
3.2 3.2
3.2
3.2
0 3.2
0
0.6
0
0
0.6
LAN
5
6
7
IC503~506: FST3383MTC
10-Bit Low Power Bus-Exchange Switch
A0 C0
BE 1
C0 2
A0 3
B0 4
B0 D0
D0 5
C1 6
A1 7
B1 8
A4 C4
8
D1 9
C2 10
A2 11
GND 12
B4 D4
BX
9
70
BE
C D E
Point 5 Pin 127 of IC501
5
ETHERNET
24 Vcc
23 D4
22 B4
21 A4
20 C4
19 D3
18 B3
17 A3
16 C3
15 D2
14 B2
13 BX
F G H I J K
PCM CIA
4.3 4.9
4.9
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