Nad S 200 Service Manual

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CONTENTS

FRONT PANEL/ REAR PANEL VIEW .................................. 3
SPECIFICATIONS .................................................. 4

ALIGNMENT PROCEDURE/ALIGNMENT POINTS 5
WIRING DIAGRAM ........................ I. . I . 6
BLOCK DIAGRAM ................................................... 7
POWER AMPLIFIER SYSTEM ......................................... 8
SCHEMATIC DIAGRAM ........................................... 9~12
PCB LAYOUT ................................................... 1315
IC BLOCK DIAGRAM ................................................ 16
ELECTRICAL PARTS LIST ....................................... 17-20
EXPLODED VIEW .................................................. 21
EXPLODED VIEW PARTS LIST ....................................... 22
PACKING DIAGRAM ......... I 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

F501 AH 5120-00234) Fuse 15A250V Slow Blow UIJCSA

F502-F505AH 5120400404) Fuse 6.3A250V Slow Blow UL/CSA

F701-F702AH 5120-0031-0 Fuse SDOmAZSOVSlow Blow High Surge UIJCSA

F501C 512000254) Fuse 6.3A250VTIme Lag HBC VDEISEMKO
F502vF505'C 51 20430384! Fuse 6.3A250V FaslAcling HBC VDE/SEMKO

F701 -F7UZ'C 5120-0030-0 Fuse 5DOmA250VTlme Lag LBC High Surge VDEISEMKO

NOTE:
AH : North American model only
'C : European model only

2. Safety-check out (North American model only)

Parts marked with the symbol A are critical wiih regard to the risk of fire and electric shock
Replace only with parts recommended by the manufacturer,

Before returning the product to the customer, make leakage current or resistance measurements
to determine that exposed parts are acceptably insulated from the supply circuit,

FRONT PANEL I REAR PANEL VIEW

FRONT PANEL CONTROLS
MID-«Wi-
I I I |
1 2 3 4 5
1. POWER SWITCH 4. SOFT CLIPPING INDICATOR
2, POWER INDICATOR - 5. BRIDGE MODE INDICATOR

3.

PROTECTION INDICATOR

A

THE graphlc symbol Ma ligmning flash with an arrow poinl
wnmn a mangle signifies that there is dawemm mage
wmlin the mill and 'npusses a harm to anyone removing
the cover to gain access to live interior er the unit. Only
qualified service persona-l should malt: such mum

manual and lls wsmlngs lor proper operation or

The graphic symbol at an exctsmsllon point wlmin
an equilateral Mangle warns a userol me deviee
that il ls necessary In radar to the lnslrucuou
me unit

REAR PANEL CONNECTIONS

mewwe

. BRIDGING SWITCH

RIGHT BALANCED INPUT
RIGHT UNBALANCED INPUT
LEFT UNBALANCED INPUT

. LEFT BALANCED INPUT

6. BALANCE SWITCH

7. SOFT CLIPPING SWITCH
BI AC INLET

9. SPEAKER OUTPUTS

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EXPLODED VIEW PARTS LIST

ITEM PART NUMBER

1 8200-2001-3
2 5200-2002-2
3 8200-2005-2
4AH 8200-2004AH-2
4"C 5200-2004C-2
5 8200-2003-3
6 8200-2014-2
7 3200-2034-1
8 3200-2024-2
9 8200-20444
10 8200-2008-2
11 5200-2009-2
12 8200-2007-3
13 N41321671-0
1 4 S1 00-201 1 6
15 8100-2013-2
1 6 TI-652252

17 8200-0205

1 8 PX0690/28

19 8300-0202
20 8300-0201

21 WBT-745 RED
22 WBT-745 BLACK
23 3200-0100

24 8200-0110

25 8200-0120

26 8200-0130

27 3200-0140

28 8200-0150

29 8200-0160

30 8200-0200

DESCRIPTION

FASCIA

SUBFASCIA

TOP COVER

REAR PANEL 120V

REAR PANEL 230V

BASE PLATE

RIGHT FRONT HEATSINK
RIGHT REAR HEATSINK
LEFT FRONT HEATSINK
LEFT REAR HEATSINK

TOP COVER MOUNTING BAR
SUBFASCIA/REAR PANEL BAR
HEATSINK BAR
TRANSISTOR CLAMP

10MM POWER BUTTON
FOOT W/ RUBBER CUSHION
TRANSFORMER

POWER SWITCH

AC INLET

RCA JACK WHITE

RCA JACK RED

SPEAKER TERMINAL RED
SPEAKER TERMINAL BLACK
PSU PCB

INPUT STAGE PCB
SPEAKER PCB

RIGHT POWER STAGE PCB
LEFT POWER STAGE PCB
RIGHT LED PCB

LEFT LED PCB

BRIDGE RECTIFIER

22

3

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PACKING DIAGRAM

ITEM
31

33'AH
33'0

PART NUMBER

31 1 232
S200-2010-A
POW4
POWZ
WARR
82004 M

DESCRIPTION QTY.
POLYFOAM _ 1 SET
CARTON BOX

POWER CORD NEMA1-15 POLARIZED
POWER CORD CEE (7) XVII
WARRANTY CARD

INSTRUCTION MANUAL

Proprietary information for servicing purposes only. The information herein may not be

used commercially without the prior written agreement of NAD Electronics International,

Toronto; Canada

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