Inter-m PA-920 Bedienungsanleitung

OPERATING MANUAL

POWER

AMPLIFIER

PA-920/935

UNPACKING AND INSTALLATION

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

required to read this manual for properly wired installation and becoming familiar with its many features and how

to use them. Please take a great care in unpacking your set 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 services. Never place the unit near radiator, in front of heating vents, to direct sun light, inexcessive

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 maintenance

(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 exposure.

Attentions: Pour prévenir les chocs électriques ne pas utiliser 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

•VERSATILE AND CONVENIENT

3 channels of input signals from MIC1, MIC2/AUX1 and MIC3/AUX2 are provided, and Bass and Treble are

incorporated for versatile and convenient use. MIC, AUX input have PL55 phone jack and Telephone IN input

have screw terminal.

FRONT PANEL CONTROLS

1. POWER SWITCH

Pressing this switch to ON will make the power indication LED ON and supply the power to this unit.

2. POWER LED

Pressing power switch to ON will make the power indication LED ON.

3. TREBLE

This control is used for modifying the high frequency sound.

4. BASS

This control is used for modifying the low frequency sound.

5. MIC VOLUME

You can adjust the volume level of Mic 1, Mic 2, and Mic 3.

6. AUX VOLUME

You can adjust the volume level of Aux 1 and Aux 2.

7. MASTER VOLUME

This control is used for adjusting the volume of finally mixed sound.

AMPLIFIER

PA-935

MIC 1 MIC 2/AUX 1 MIC 3/AUX2 BASS TREBLE

-10 +10 -10 +10

POWER ON

OFF

POWER

010

60 0

020

MASTER VOLUME

010

2345

6 7

REAR PANEL CONTROLS

1. AC CORD

Plug this AC input cord into AC outlet.

2. FUSE HOLDER (AC)

This fuse holder contain AC fuse, replace only with same type fuse when it is blown out. If it continuously

blow, stop replacing fuse and refer servicing to qualified personnel.

3. SPEAKER OUTPUT TERMINAL

This terminal is for speaker wire connection. You can select one of 4 ohms, 8 ohms, 70 volts and 100 volts.

Be sure not to make the total impedance less than rated impedance.

4. GND TERMINAL

This is ground terminal to be connected with chassis of the turntable etc, to reduce hum to minimum. To

further minimize hum, it may be necessary to connect this terminal with a wire to the nearest water pipe

which goes directly to real ground.

5. MIC 1, 2, 3 INPUT (PHONE JACK)

These phone jacks are for the Mic 1 and Mic 2 input. Input sensitivity and impedance in PHONE JACK

2mV/600Ω.

FUSE

T1AL/250V

COM 4 

B

70V 100V

AUX 1 AUX 2 GND

T / P

INPUT

GND

MIC3 MIC2 MIC1

AUX 2 MIC 3

TEL/MUTE MIC1/MUTE

~AC INPUT

230V 50Hz,72W

MODEL:PA-935 AMPLIFIER

OUTPUT

BALANCED

S/N

AUX 1 MIC 2

INPUT

BALANCED

STEREO MIXED

12 3 4 5

Voltage AC 220V/240V

PA-920 Fuse Rating 0.5A/250V

PA-935 Fuse Rating 1A/250V

6. MUTE CONTROL

When the other signal is muted by Mic 1 and Telephone paging, this control is used for adjusting the muting

level.

7. MIC 2/AUX 1 SELECTOR SWITCH

This switch is used to select MIC 2 or AUX 1.

8. MIC 3/AUX 2 SELECTOR SWITCH

This switch is used to select MIC 3 or AUX 2.

9. TELEPHONE IN TERMINAL

These terminals are to be connected to telephone exchange system for paging.

NOTE: When there are paging signal through this terminals, the other input signals are muted.

10. AUX INPUT (PHONE JACK)

You can connect the sound source of tuner, deck, CD, video, etc to this input.

INSTALLATION OF THE SPEAKERS

When you connect the speaker, remove the power cord from AC outlet. And use the suitable terminals

connecting way as belows. Be sure that total impedance is not less than rated impedance.

• AC VOLTAGE: 220V–240V ONLY

VOLTAGE PA-920 8.9V 12.65V 70V 100V

PA-935 11.8V 16.73V 70V 100V

IMPEDANCE PA-920 4 OHMS 8 OHMS 245 OHMS 500 OHMS

PA-935 4 OHMS 8 OHMS 140 OHMS 285 OHMS

FOR 4ΩTERMINAL

12V 16.7V 140Ω285Ω(PA-935)

9V 12.8V 245Ω500Ω(PA-920)

FOR 70V TERMINAL

12V 16.7V 140Ω285Ω(PA-935)

9V 12.8V 245Ω500Ω(PA-920)

FOR 100V TERMINAL

12V 16.7V 140Ω285Ω(PA-935)

9V 12.8V 245Ω500Ω(PA-920)

FOR 8ΩTERMINAL

12V 16.7V 140Ω285Ω(PA-935)

9V 12.8V 245Ω500Ω(PA-920)

(Figure 2-1)

(Figure 2-4)(Figure 2-3)

Be sure that total impedance is not less than

rated impedance. Be sure that total impedance is not less than

rated impedance.

(Figure 2-2)

CONNECTIONS

FUSE

T1AL/250V

COM 4

B

70V 100V

AUX 1 AUX 2 GND

T / P

INPUT

GND

MIC3 MIC2 MIC1

AUX 2 MIC 3

TEL/MUTE MIC1/MUTE

~AC INPUT

230V 50Hz,72W

MODEL:PA-935 AMPLIFIER

OUTPUT

BALANCED

S/N

AUX 1 MIC 2

INPUT

BALANCED

STEREO MIXED

EARTH

SPEAKERS

TUNER

CASSETTE DECK

TELEPHONE

EXCHANGE SYSTEM

SCHEMATIC DIAGRAM (PA-920)

SCHEMATIC DIAGRAM (PA-935)

Andere Handbücher für PA-920

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