Inter-m PA-9312 Manual de usuario

OPERATING MANUAL

PUBLIC ADDRESS POWER

AMPLIFIER

PA-9312/9324

UNPACKING AND INSTALLATION

Although it is neither complicated to install nor difficult to operate your PA amplifier, a few minutes

of your time is required to read this manual for a properly wired installation and becoming familiar

with its many features and how to use them. Please take a great care in unpacking your amplifier

and do not discard the carton and other packing materials. They may be needed when moving

your set and are required if it ever becomes necessary to return your set for service.

Never place the unit near radiators, in front of heating vents, in excessively humid or dusty

location to avoid early damage and for your years of quality use. Connect your complementary

components as illustrated in the following page.

RISK OF ELECTRIC SHOCK

DO NOT OPEN

CAUTION

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK.

DO NOT REMOVE COVER (OR BACK).

NO USER-SERVICEABLE PARTS INSIDE.

REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.

WARNING

To prevent fire or shock hazard, do not

expose the unit to rain or moisture.

This symbol 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

shock to persons.

This symbol is intended to alert the user to the

presence of important operation and main-

tenancy (servicing) instructions in the literature

accompanying the appliance.

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 ex-

posture.

Attentions: Pour prévenir les chocs électriques ne pas utilizer cette

fiche polarisée avec un prolongateur, une prise de

courant on une autre sortie de courant, sauf si les

lames peuvent étre insérées à fond sans en laisser

aucune partie à découvert.

FEATURES

• THERMAL PROTECTION & AUTOMATIC IDLING CIRCUITRY

To insure stability and reliability against over-current and over-heating, thermal protection

circuitry is provided. In addition, automatic idling circuit is provided to protect against thermal

run-away.

• BALANCED INPUT

A balanced input is provided to reduce hum picked up from a long distance input cable and to

avoid ground loop problem when you build the system.

• GAIN ADJUSTMENT

You can adjust the input gain from –12dB to 0dB (1V) by using of input gain adjust control.

• USE OF EMERGENCY BATTERY

You can operate this PA amplifier by using emergency battery for unexpected AC power failure.

FRONT PANEL CONTROLS

1. POWER INDICATING LED

This LED indicates power is turned ON.

2. POWER SWITCH

Pressing this switch to ON will make the power indicating LED ON and supply the power to

unit.

3. OUTPUT LEVEL INDICATORS

These LEDs indicates the output level of this amplifier. Be sure not to operate the unit with the

clip LED ON continuously (RED).

4. PROTECTION INDICATOR

This LED indicates the condition of the protection circuit. When the protection LED is “ON” the

amplifier is not operating normally (power on delay, overheating and limiting), please check

the INPUT/OUTPUT condition of the amplifier.

PUBLIC ADDRESS POWER AMPLIFIER

PA-9312

POWER

OFF

CLIP

-10dB

-40dB

OUTPUT&PROTECTION

PROT

3 2

4 1

REAR PANEL CONTROLS

1. FAN

The fans should be kept free of all obstructions and be accessible to cool fresh air when

possible. It is important that the fans be used in a dust free environment.

2. SPEAKER OUTPUT TERMINALS

These terminals are for connection of speaker lines to deliver power output to speakers.

Impedance (voltages) of 4Ω, 8Ω, 70V and 100V are provided for convenience. In any case,

use the speakers whose combined impedance is equal to or higher than the rated output

impedance of amplifier.

*100V or 25V can be selected optionally

3. INPUT JACKS

These input jacks and terminals are for the balanced input signal. You can connect amplifiers

in parallel by using XLR jack.

4. LEVEL ADJUST CONTROL

This control is for adjusting the level of amplifier from –12dB to 0dB with the reference input

sensitivity of 0dB (1V). Rotating the control clockwise increases the level and counter-

Model 4Ω25Ω70V 100V

PA-9312 22V 5.2Ω42Ω83Ω

PA-9324 32V 2.6Ω21Ω42Ω

DC FUSE

10A/250V

0dB

HPF

INPUT

ADJ.

BALANCED

INPUT

1V/10KΩ

LINK

OFF

FRAME

FLOAT

-12dB

22V(4Ω)

70V(41Ω)

100V(83Ω)

COM

OUTPUT

230

FUSE:T2AL/ 250V

AC INPUT:230V 50Hz,300W

DC INPUT

24V

GROUND

LIFT

CAUTION; REPLACE WITH THE SAME TYPE

FUSE AS INDICATED. UTILISER UN FUSIBLE

DE RECHANGE DE MEME TYPE.

MODEL NO;PA-9312

PUBLIC ADDRESS

POWER AMPLIFIER

MADE IN KOREA

OUTPUT POWER:120W

SHOCK HAZARD DO NOT OPEN.

NO USER SERVICEABLE PARTS INSIDE. DO

NOT EXPOSE UNIT TO RAIN OR MOISTURE

WARNING;

RISQUE DE CHOCELECTRIQUE NE

PAS OUVRIR.

AVIS;

8 97

5. FUSE HOLDERS, AC AND DC

This control is for adjusting the level of amplifier from -12dB to 0dB with the reference input

sensitivity of 0dB(1V). Rotating the control clockwise increases the level and counterclockwise

decreases the level.

6. AC INLET

This terminal is connected AC input cord.

7. HIGH-PASS FILTER SWITCH

This switch is for activating the High-pass Filter circuit, to protect speakers from excessive low

frequency power demands. The –3dB frequency of the High-pass Filter is 400Hz.

8. EARTH LINK SWITCH

This slide switch provides for separation of “safety” earth and “signal” earth to prevent from

hum loops.

9. DC INPUT TERMINALS

These terminals are for connecting DC power supply of battery, Connect red colored terminal

to positive lead of battery and black colored one to negative lead of battery.

SPECIFICATIONS 66

ELECTRICAL

Rated output (THD 1%) PA-9312 PA-9324

................................................................................................120W(RMS) 240W (RMS)

4Ω(22V) 2.6Ω(25V)

5.2Ω(25V) 4Ω(31V)

42Ω(70V) 21Ω(70V)

83Ω(100V) 42Ω(100V)

Input Sensitivity/Impedance ...............................................................................1V/10KΩ, BAL

T.H.D (at 1KHz, Rated Output) ............................................................................Less than 1%

Frequency Response (+1/–3dB) ..........................................................................70Hz~20KHz

S/N..................................................................................................................Better than 95dB

H.P.F ..................................................................................................................–3dB at 400Hz

Input Level Adjustment ...........................................................................................–12dB~0dB

GENERAL

Power Source .................................................................AC 110V~240V, 50Hz/60Hz, DC 24V

Weight (Net)........................................................................................................PA-9312:14Kg

..............................................................................................................................PA-9324:19Kg

Dimensions ................................................................................482(W) 132(H) 280(D)mm

Specifications and design subject to change without notice for improvements.

MADE IN KOREA

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