NAD C521 Service Manual

7
BLOCK DIAGRAM
U401 LC587206A SYSTEM CONTROL CPU & LCD DISPLAY DRIVER
Q401- Q403
MUTE CIRCUIT
Q301-Q304 MUTE
M317 RCA JACK
U302 PMC1710
M318
RCA JACK
DIGITAL
OUTPUT
M501*
LCD DISPLAY
3 56 19
2
63
23 29
39 62
37
1 2
16 13
3
42 44 43
23 24 14 13
33 34
31 32
21 22
65 67
2 4
3 6
56
L
R
L
R
CD AUDIO
O/P
10 11
30 31
5 6
35 34 39 40
4443
1
63 62
U301
LC78621
DIGITAL
SIGNAL
PROCESSOR
15 27
16 29
2 10
5
10
6
11
20 25
21 26
3
18
13 28
U101 LA9240
ANALOG SIGNAL
PROCESSOR/SERVO
TOFF
TGL
CLV-
CLV+
EFM
U701 LB1641 MOTOR DRIVER
U201 LA6541 FOCUS & TRACKING MOTOR DRIVER
LOADING
MOTOR
LOADING MOTOR
LIMIT SWITCH
SPINDLE
MOTOR
SLED
MOTOR
PU-IN
LIMIT SWITCH
PICK
UP
DISC
KEYBOARD
M113
REMOTE
SENSOR
CD MECHANISM UNIT
POWER
TRANSFORMER
AC POWER I / P
M110 M109
REPEAT
M104
M111M112
RANDOM
M106
M101 M103 M102
TIME
M108
Q101
DAC
U306
U305
4
U501,U507
DIGITAL
POWER
U502-3,U506
ANALOGUE
POWER
+8V +5V +12V 5V
-12V
D514-D517
RECTIFIER
DIODES
D501-D504
RECTIFIER
DIODES
D506
RECTIFIER
DIODES
U504
POWER FOR
EL LIGHT
M502
EL LIGHT
U403
74HC00
NAND GATE
M303
EMC FILTER
L301
DIGITAL COIL
M500
1

NAD C521 Specifications

General

Brand	NAD
Model	C521
Category	CD Player
Language	English