39
IC BLOCK DIAGRAM
AC3 BOARD
U101: 74HC153
AC3 BOARD
U102: 74HC157
AC3 BOARD
U103: CS5331A
14
7
9
A
2
1
6
5
4
3
15
B
1G
1C0
TG
TG
TG
TG
TG
TG
TG
TG
TG
TG
TG
TG
1C1
1C2
1Y
2Y
1C3
10
11
12
13
2C0
2C1
2C2
2C3
2G
1
1G
VCC
16
2
B
2G
15
3
1C3
A
14
4
1C2
2C3
13
5
1C1
2C2
12
6
1C0
2C1
11
7
1Y
2C0
10
8
GND
2Y
9
4
1Y
7
2Y
9
3Y
12
4Y
15
1
G
13
4B
10
3B
6
2B
5
2A
3
1B
2
1A
11
3A
14
4A
A/B
1
A/B
VCC
16
2
1A
G
15
3
1B
4A
14
4
1Y
4B
13
5
2A
4Y
12
6
2B
3A
11
7
2Y
3B
10
8
GND
3Y
9
AINL
8
+
-
+
-
+
-
5
6
7
4
2
3
1
AINR
AGND
S/H
Comparator
MCLK
SCLK
LRCK
SDATA
Comparator
Voltage Reference
Serial Output Interface
Digital
Decimation
Filter
Digital
Decimation
Filter
High
Pass
Filter
High
Pass
Filter
S/H
VA+
+
-
LP Filter
DAC
DAC
LP Filter
Summary of Contents for T 751
Page 1: ...NAD SERVICE MANUAL T 751 SURROUND SOUND RECEIVER T 751S U R R O U N D SOUND RECEIVER ...
Page 11: ...13 PCB LAYOUT SPEAKER BOARD DIGITAL BOARD PRIMARY BOARD SECONDARY BOARD TONE BOARD ...
Page 12: ...14 PSU BOARD S VIDEO BOARD LED BOARD AC OUTLET BOARD ...
Page 13: ...15 AC3 DTS BOARD COMPONENT SIDE AC3 DTS BOARD SOLDER SIDE ...
Page 14: ...16 MULTI CHANNEL BOARD MAIN BOARD ...
Page 15: ...17 KEYBOARD COMPONENT SIDE KEYBOARD SOLDER SIDE ...
Page 17: ...19 SURROUND AMPLIFIER BOARD TUNER BOARD VIDEO BOARD AUDIO BOARD ...
Page 64: ...SERVICE MANUAL NAD 2001 T 751 SURROUND SOUND RECEIVER NAD ELECTRONICS INTERNATIONAL TORONTO ...