NAD C541, Service Manual

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SCHEMATIC DIAGRAM
D+5V RX DGND HDCD
D+5V RX DGND
DGND
HDCD
HDCD
HDCD
HDCD
0V
0V
0V
2.4V
1.6V
0V
0V
0V
4.9V
0V
4.8V
*0V
4.8V
*1.2V
4.9V
*0V
5V 0V 4.3V 2.2V 5V 0V 0V 0V 5V 5V 2.4V 0V 1.1V *2.7V 1.2V *2.7V
*7.4V 7.8V 2.5V 2.5V 2.5V 3.4V 3.4V 0V 0V 0V 3.5V 3.5V 2.5V 2.5V 4.8V 4.9V
*7.4V 7.8V
*5V 0V
2.4V 2.5V
*3.3V
3.5V
*2.9V 3.5V
0V 0V 0V
3.4V 3.4V 2.5V 2.5V
5V
*7.4V 7.8V
0V 0V 5V 5V 5V 5V 4.9V 4.9V 4.9V 4.9V 0V 4.8V 2.6V 2.4V
∆
4.9V #0V
#4.9V
∆
0V
2.4V 2.4V 2.4V 2.4V 2.4V 2.4V 2.4V 2.4V 2.4V 2.4V 2.4V 2.4V 2.4V 2.4V
2V
3.7V
0V
0V
0V
0V
0V
0V
2.4V
2.4V
2.4V
2.4V
2.4V
2.4V
2.4V
2.4V
2.4V
2.4V
5V
0V
3.3V
1.6V
0V
4.7V
4.8V
0V
0V
0V
0V *1.8V
5V
5V
0V
4.9V
4.9V
5V 2.3V 2.2V 0V 0V 2.4V 2.3V 4.9V 4.9V 4.9V 0V
0V
2.4V
2.4V
3V *1.6V
0V *1.8V
0V
0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 2.4V 2.4V 5V
0V
0V
*1.4V
4.6V
0V
1.7V
5V
1.5V
*0.3V 0V
2.3V
2.5V
2.5V
0V
*0.4V 0V
0V
0V
0V
0V
0V
0V
4.9V
4.9V
2.3V
0.2V
*0V 4.9V
0V
0.7V
0.5V
0V
0V
7.8V
7.8V
0.7V
0.5V
∆ 0.06V #4.2V
*1.2V 3V
2.4V
2.4V
2.1V
2.3V
2.3V
0V
0V
2.4V
2.5V
0V
5V
5V
0V
5V
0V
4.9V
0V
2.3V
0V
0V
2.4V
2.5V
5V
5V
5V
HDCD
R428
560R
DGND
RESISTORS: M- METAL FILM
F- FUSIBLE
CARBON FILM UNLESS OTHERWISE SPECIFIED.
NOTE: 1. RESISTORS, UNLESS OTHERWISE SPECIFIED, ARE 1/8W.
2. ALL CERAMIC CAPACITORS, UNLESS OTHERWISE SPECIFIED, ARE 50V 10%.
3. COMPONENTS MARKED “ ” ARE SAFETY CRITICAL PARTS.
4. VOLTAGE SPECIFIED ON THE IC’S PIN WHICH DOES NOT HAS MARKING IS IN STOP MODE,
MARKED WITH “*” IS PLAY MODE, “#” IS TRAY OPEN MODE AND “
∆
“ IS TRAY CLOSE MODE.