NAD S-500 Service manual
NAD
SERVICE MANUAL
S 500
COMPACT
S 500
COMPACT
DISC PLAYER
DISC PLAYER
CONTENTS
FRONT PANEL / REAR PANEL VIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
PCB LAYOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10
SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-14
ELECTRICAL PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-19
IC BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
EXPLODED VIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
EXPLODED VIEW PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
PACKING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
SERVICE SAFETY PRECAUTIONS
1. Replacing the Fuses
CAUTION: FOR CONTINUED PROTECTION AGAINST THE RISK OF FIRE REPLACE ONLY
WITH SAME TYPE OF FUSE.
REFERENCE NO. PART NUMBER DESCRIPTION
AC INLET FUSE Fuse Time Lag 500mA 250V 5x20mm UL/CSA
F451-F452*AH 5120-0032-0 Fuse Time Lag 2A 250V 5x20mm UL/CSA
AC INLET FUSE Fuse Time Lag 250mA 250V 5x20mm SEMKO/VDE
F451-F452*C 5120-0065-0 Fuse Time Lag 2A 250V 5x20mm SEMKO/VDE
NOTE:
*AH : North American model only
*C : European model only
2. Safety-check out (North American model only)
Parts marked with the symbol are critical with regard to the risk of fire and electric shock.
Replace only with parts recommended by the manufacturer.
!
2
FRONT PANEL / REAR PANEL VIEW
FRONT PANEL CONTROLS
NA
D
Compact Disc Player S500
PLAY / PAUSE STOP / OPEN
SKIP
SCAN
1 2 3
4
1. POWER SWITCH 5. PLAY/PAUSE
2. POWER INDICATOR 6. STOP/OPEN
3. DISC DRAWER 7. SKIP/SCAN DOWN
4. DISPLAY 8. SKIP/SCAN UP
The graphic symbol of a lightning flash with an arrow point
within a triangle signifies that there is dangerous voltage
within the unit and it posses a hazard to anyone removing
the cover to gain access to the interior of the unit. Only
qualified service personnel should make such attempt.
The graphic symbol of an exclamation point within
an equilateral triangle warns a user of the device
that it is necessary to refer to the instruction
manual and its warnings for proper operation of
the unit.
REAR PANEL CONNECTIONS
BALANCED
UNBALANCED
LINE OUT
21
L
R
3
L
BALANCED
LINE OUT
R
AES/EBU
DIGITAL OUT
DIGITAL OUT
NAD LINK
IN
OUT
5 6 7
8
1
2
3
5 6 7
4
1. UNBALANCED LINE OUTPUT 5. COAXIAL DIGITAL OUTPUT
2. LEFT BALANCED LINE OUPUT 6. NAD LINK INPUT/OUTPUT
3. RIGHT BALANCED LINE OUTPUT 7. AC INLET
4. AES/EBU BALANCED DIGITAL OUTPUT
THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES.
OPERATION IS SUBJECT TO THE FOLLOWING TWO CONDITIONS:
(1) THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE, AND
(2) THIS DEVICE MUST ACCEPT ANY INTERFERENCE RECEIVED,
INCLUDING INTERFERENCE THAT MAY CAUSE UNDESIRED
OPERATION.
3
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