Altronics Redback A 4395 Panduan Pengoperasian - Halaman 8

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A 4395

500 Watt Power Amplifier

TROUBLE SHOOTING

If the REDBACK Phase 4 amplifier fails to deliver the rated performance, check the following:

No Power, No Lights

Make sure amplifier power switch is on. Make sure mains power switch is on at the wall. Check the mains and DC

fuse. Replace with only the correct type and rating. Over rated fuses will invalidate warranty.

Distorted Output

Check that the speaker type is correct for the output that you are using (ie. 4-16Ω, 70V or 100V line). Check for

any short circuits on the speaker line.

Very Low Output Volume

Make sure that the input is the correct level (check for shorted connectors). Check for any short circuits on the

speaker line.

Check if signal LED on the front panel is lit to indicate there is signal. If it is not lit there is no signal present.

Continually Blows Fuses

Make sure that the speaker line is not shorted. Check speaker types, ratings and if on correct output.

Amplifier Keeps on Cutting In & Out

Make sure that there is adequate ventilation around the amplifier. Check the vent slots on the front,top and sides

are not covered or blocked and the fan on the rear is functioning correctly. Check also speaker types, ratings and

for any short circuits on the speaker line.

Backup Battery Not Charging

Make sure the link is fitted to the charging link connector

No Output From 24V DC

Make sure the 24V DC Out connector is wired correctly.

SPECIFICATIONS

POWER OUTPUTS

A 4395: .................................500 watts RMS

Distortion:..........................< 0.5%, @ 1kHz

Output line: ...............70V, 100V or 4 - 16Ω

FREQUENCY RESPONSE

Mic input:.....................50Hz - 12kHz, -3dB

Line inputs: ..................50Hz - 15kHz, -3dB

SENSITIVITY

Mic inputs: .................................100mV or 1V

Line inputs:.................................100mV or 1V

SIGNAL TO NOISE RATIO

Mic inputs: .........> 75dB below rated output

Line inputs:........> 81dB below rated output

OUTPUT CONNECTORS

Speakers: ...........................Screw terminals

Redback® Proudly Made In Australia

*Specifications subject to change without notice

INPUT CONNECTORS

Inputs: ........3 pin XLR balanced or 2 x RCA

24V DC power: ...................Screw terminals

240V AC power: .........IEC power connector

CONTROLS

Mic inputs: .......................................Volume

Line inputs:......................................Volume

Bass:..................................±10dB @ 100Hz

Treble:................................±10dB @ 10kHz

Power: .....................................On/off switch

Indicators:...............Power, signal present, output peak

limiting, overtemp ,current limit, shutdown, VOX active,

24V DC, Mains

Power Supply: .............240V AC or 24V DC

FUSE PROTECTION

A 4395: ...............................10A AC , 20A DC

DIMENSIONS

.........................................≈483W x 410D x 88H