Pioneer A-509R Manual de instrucciones - Página 2

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CONTENTS

FEATURES ................................................................................... 2

INSTALLATION ............................................................................ 2

CONNECTIONS ........................................................................... 3

PANEL FACILITIES ...................................................................... 5

FEATURES

¶ Advanced Direct Energy MOS Power Amp

Pioneer incorporates highest quality amp circuitry featuring

Advanced Direct Energy MOS FET devices which can achieve

higher performance. Together with Pioneer's original Wide

Range Linear Circuit technology they reduce power

consumption while maintaining the power output of current

models.

In terms of performance, this technology contributes to flat

damping factor characteristics across the audio spectrum. It

also allows a wide range and especially ultra high frequencies

to be reproduced more accurately and improves power

linearity.

¶ Stabilizer

Transformer stabilizer, stabilizer frame (attached to chassis)

and volume stabilizer (attached to volume knob) deliver

powerful sound.

INSTALLATION

LOCATION

Install the unit in a well-ventilated location where

it will not be exposed to high temperatures or

humidity.

Do not install the unit in a location which is exposed to direct rays

of the sun, or near hot appliances or radiators. Excessive heat

can adversely affect the cabinet and internal components. Instal-

lation of the unit in a damp or dusty environment may also result

in a malfunction or an accident. (Avoid installation near cookers

etc., where the unit may be exposed to oily smoke, steam or heat.)

Do not install the unit on a tottered stand, nor on an unstable or

inclined surface.

VENTILATION

• When installing this unit, make sure to leave space around the

unit for ventilation to improve heat radiation (at least 60 cm at

top, 10 cm at rear, and 30 cm at each side). If not enough space

is provided between the unit and walls or other equipment,

heat will build up inside, interfering with performance or

causing malfunctions.

• Do not place on a thick carpet, bed, sofa or fabric having a thick

pile. Do not cover with fabric or other covering.

Anything that blocks ventilation will cause internal temperature

to rise, which may lead to breakdown or fire hazard.

OPERATIONS ............................................................................... 8

REMOTE CONTROL .................................................................... 9

TROUBLESHOOTING ................................................................ 11

SPECIFICATIONS ......................................................... back cover

¶ Designed for Low Power Consumption

This model incorporates several features for energy efficiency

to reduce power consumption.

1 Direct Energy Circuit

2 Local Off circuit: Tone Local Off, Phono Local OFF, Silent

Microcomputer

3 S-MOS: Instead of the digital transistors usually used in

logic circuits, this unit employs S-MOS devices in some

areas. These do not require base current, so they help re-

duce power consumption.

¶ Energy-Saving Design

This unit is designed to use minimal electricity when power is

switched OFF (during Standby).

Regarding the value of the power consumption in standby

mode, refer to "SPECIFICATIONS" on page 12 (back cover).

CONDENSATION

When the unit is brought into a warm room from previously cold

conditions or when the room temperature is suddenly increased,

condensation may form inside and the unit may not be able to

attain its full performance. In cases like this, allow the unit to stand

for about an hour or raise the room temperature gradually.

POWER-CORD CAUTION

Handle the power cord by the plug. Do not pull out the plug by

tugging the cord and never touch the power cord when your hands

are wet as this could cause a short circuit or electric shock. Do not

place the unit, a piece of furniture, etc., on the power cord, or

pinch the cord. Never make a knot in the cord or tie it with other

cords. The power cords should be routed such that they are not

likely to be stepped on. A damaged power cord can cause fire or

give you an electrical shock. Check the power cord once in a while.

When you find it damaged, ask your nearest PIONEER authorized

service center or your dealer for a replacement.

NOTES:

÷ If you use an other power cord than provided, we cannot

assume the liabilities in what may occur as a result of it.

÷ (The provided power cord has a current capacity of 2.5 A.)