Nikko NA 540 Owners Manual

Page 1

INTEGRATED AMPLIFIER

NA-54O

INSTRUCTION MANUAL
SAFETY INSTRUCTIONS
MODE DEMPLOI

OPERATING INSTRUCTIONS page 'I
SAFETY INSTRUCTIONS page 7
MODE D'EMPLOI page 9

FOR CUSTOMERS IMPORTANT FOR YOUR SAFETY

(APPARATUS THAT EMPLOYS A SUPPLY CORD TERMINATED WITH A POLARIZED TWO-PRONG ATTACHMENT PLUG)

CAUTION:

TO PREVENT ELECTRIC SHOCK DO NOT USE THIS (POLARIZED) PLUG WITH AN EXTENSION CORD, RECEPTACLE

OR OTHER OUTLET UNLESS THE BLADES CAN BE FULLY INSERTED TO PREVENT BLADE EXPOSURE.

ATTENTION: POUR PREVENIR LES CHOCS ELECTRIOUES, NE PAS UTILISER CETI'E FICHE POLARISEE AVEC UN FROLONGATEUR,
UNE PRISE DE COURANT 0U UNE AUTRE SORTIE DE COURANT, SAUF SI LES LAMES PEUVENT ETRE INSEREES A
FOND SANS EN LAISSER AUCUNE PARTIE A DECOUVERT.

C AU T IO N !
I, RISK or mums snout.
, II) III IIPEII!

CAUTION: TO PREVENT ELECTRIC SHOCK DO NOT
REMOVE ANY COVERS. NO USER SERVICEABLE
PARTS INSIDE. REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL,

WARNING: TO PREVENT FIRE OR SHOCK HAZARD.
DO NOT EXPOSE THIS APPLIANCE T0
RAIN OR MOISTURE.

The lightning flash with arrowhead symbol, within
an equilateral triangle, is intended to alert the user
to the presence of Uninsulated ~dangerous
voltage" within the product's enclosure that may

be of sufficient magnitude to constitute a risk of
electric shocks to persons.

The exclamation point within an equilateral tri-

angle is intended to alert the user to the presence
' of important operating and maintenance (servic-
O

ing)instructions in the literature accompanying

The space below is provided to record the Serial Number of this unit.

The Serial Number can be found on the back of the product.

_ Serial NO.:
Retarn this Information tor hrture reverence.

the appliance

NIKKCJ

Page 2

ENGLISH

INTRODUCTION

Thank you for selecting the NIKKO NA-540 Integrated Amplifier. Every NIKKO product is subjected to a series of strict quality

control tests before shi ment to ensure total relia

ility. in order to get the most out of your amplifier, please read this Instruction

Manual carefully and ollow its instructions. Should you have any doubts or questions, please contact your nearest NlKKO

dealer.

PRECAUTIONS \

Installation

In order to derive maximum performance from the unit, please pay

close attention to the following points:

0 Do not place the unit in a location exposed to direct sunlight and
keep away from heat (stoves, etc).

0 Make sure the unit is well ventilated and is not exposed to moisture
or dampness.

0 Do not place the unit in a location with excessive dust.

0 Make sure the unit is placed on a flat, stable surface. free from
vibrations. ,

0 Do not expose the unit to flammable objects and avoid the use
of spray cans (hair sprays, etc.) near the unit.

- Be sure to install the unit in a level position. Do not use the unit
in a vertical or slanted position as overheating of internal parts
may result, badly damaging the unit.

This unit is designed so that heat created during operation is dissi-
pated through the ventilation openings in the top and bottom panels.
Maintain free and unrestricted ventilation, and do not remove the feet
of the unit. Avoid blocking the ventilation openings (be careful of
curtains, draperies, rugs, etc. blocking theopenings). When installing
in a rack or shelf, be sure the unit is properly ventilated. Allow at
least 2 inches of space on all sides.

Connections

Connect all leads firmly to the speaker and input/output terminals.
Loose connections or shorting with other parts of the unit can lead
to impaired performance and might even cause interference and
damage to the unit. Always turn the power off and remove the plug
from the power outlet before connecting or disconnecting leads, or
changing your turntables cartridge.

Operation

During record playback, howling and hum may occur. In such cases.

check for the following problems:

(1) If the turntable is placed on, or is close to a speaker, vibrations
from the speaker are easily picked up by the cartridge, causing
howling. in this case move the turntable further away from the
speaker or try to insulate the turntable using a thick cushion
or the like.

(2) ll unshielded cables are used for turntable connection. hum
may occur. Hum may also come about when a shielded cable
is used, when the ground (outer mesh) and signal (inner core)
connections are reversed. or if theturntable motor is not properly
grounded.

if the cabinet becomes dirty, wipe dirt off with a soft cloth. Do not
use alcohol, thinner, benzine, aerosol products, or other chemicals
for cleaning the cabinet.

Should your unit require service or maintenance, contact your nearest
authorized NIKKO Service Center or your dealer.

Protective Circuits

The built-in protective circuits are immediately activated it any of the

following situations should occur:

(1) Short-circuiting of speaker output connections.

(2) Presence of DC components in the signal (which could damage
your speakers seriously).

If there is no sound in both channels when the POWER button is
turned on. first make sure that all connections and operation proce»
dures are correct. Then turn off the POWER button, turn the volume
down and wait a few seconds. Next, turn the POWER button on again.
if the sound from both speakers is cut off again, some malfunction
or problem inside the circuitry preventing the signal from being sent
to the speakers may be suspected. in this case contact your nearest
authorized NlKKO Service Center for inspection and/er servicing.
Note: if a short-circuit occurs, the protective circuits will cut off
the sound output. However. if the speakers are properly
connected to the rear panel SPEAKERS terminals, sound
output will return in a-few seconds.

Warning: To prevent fire or shock hazard, do not expose this
appliance to rain or moisture.