NAD C521 Service Manual

20
SEG13
SEG12
SEG11
SEG10 SEG09
SEG08 SEG07
SEG06
SEG05 SEG04 SEG03 SEG02
TST
SEG01
M4
M3
RES
INT
S01
S02 S03
S04
P1
P2
P3 P4
XTOUT
XTIN
VDD1
VDD2
VSS
VDD
N2
N1
M4
M3
M2
M1
K4
K3
K2
K1
S4
S3
S2
S1
CFOUT
CFIN
SEG14
SEG15
SEG16
SEG17
SEG18
SEG19
SEG20
SEG21
SEG22
SEG23
COM4
COM3
COM2
COM1
CUP1
CUP2
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
ROM S port
K port
M port
SO port
P port
OSC1
OSC2
Reset function
N port
Carrier control circuit
8-bit reload timer
(timer 2)
8-bit preset timer
(timer 2)
Serial interface
Base timer (free-
running timer)
Alarm signal
generator
Watchdog timer
PC
OPG
APG
DPF
STACK
DP
BNK
RAM
ACC
ALU
Breg
Insert
Stand by
Data decoder
Segment RLA
LCD driver
Segment pins
Common pins
Strobe decoder
Table reference function
Note: Shaded blocks can be selected
by the user as mask options.
U401: LC587206A

NAD C521 Specifications

General

Brand	NAD
Model	C521
Category	CD Player
Language	English