NAD C 542 - Manual (Page 7)

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BLOCK DIAGRAM
U301 M38B59EF SYSTEM CONTROL CPU & VFL DISPLAY DRIVER
Q401- Q403
MUTE CIRCUIT
Q301-Q304 MUTE
M313 RCA JACK
Q307
M313 IR_IN
M318
RCA JACK
DIGITAL OUTPUT
U402
NAD LINK
MICRO-
CONTROLLER
U403
74HC00 NAND GATE
NAD LINK
IN
M501
VFL DISPLAY M314
TRIGGER SWITCH
M315
TRIGGER IN
NAD LINK
OUT
M319
RCA JACK
18
67
19
69
59
70
60
80
62
22 32
68
72
25
11
23
15
9
13
12
10
9
8
11
20
1
79
80
24
41
56
35
40
27 1
3
16 13
4
64 63
61
66
51 59 40
41
43
65 66
58
67
63 64
1 9
2
4
3
6
60
L R
L R
CD AUDIO
O/P
25
12
15 16 18 28
U201
LXD3017Q
DSP
1 27 6 2
11
U101
CX2581 RF AMP
RFAC
FE
SETE RFDC SRDR SFDR FRDR FFDR TRDR TFDR
SPDR
LOADING
MOTOR
DISCO DISW
LOADING MOTOR
LIMIT SWITCH
SPINDLE MOTOR
SLED
MOTOR
PU-IN
LIMIT SWITCH
PICK
UP
DISC
M113
REMOTE SENSOR
CD MECHANISM UNIT
POWER
TRANSFORMER
AC POWER I / P
Q101
U302 PCM1732
DAC
U306
U305
U501,U507
DIGITAL POWER
U502-3,U506 ANALOGUE
POWER
+8V
+5V
+12V
5V
-12V
D514-D517 RECTIFIER
DIODES
D501-D504 RECTIFIER
DIODES
D510-D511
ZENER DIODES
-22V
F1
F2
D506-D508 RECTIFIER
DIODES
U403
74HC00
NAND GATE
M303
EMC FILTER
L301
DIGITAL COIL
M316
OPT JACK
DIGITAL OUTPUT
M500
Q310
K501
RELAY
K502
RELAY
Q312
8
Q103
4
26
27
1
2
12
13
16
17
5 9 10 20 19 24
15
29 28 33 32 31 30 26 27
U202
BA6392
KEYBOARD
M110
M109
REPEAT
M105
M108
M107
RANDOM
M102
M106
M104
M103
TIME
M101