Alto Aviation ASW-283 Producthandleiding - Pagina 11

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PRODUCT MANUAL

3.0

INSTRUCTIONS FOR CONTINUED AIRWORTHINESS

3.1

Periodic Maintenance

No periodic scheduled maintenance or calibration is required for continued airworthiness

of this product. If the unit fails to perform to specifications, it must be removed and

serviced by a qualified service facility.

4.0

TROUBLESHOOTING

4.1

Basic Troubleshooting

Problem

No Sound

Distorted Sound

Poor Audio Quality

Noise in Audio System

Possible Cause

No output from Audio Amplifier

Wiring / connection problem

Audio output from source unit is

distorted

Loudspeaker Membrane Damage

Audio source unit controls are

improperly adjusted

Speakers are improperly installed

Vibration in aircraft fixture, grill, or

panel

Figure 4: Basic Troubleshooting

Size

Doc Type

106511-283-4FXXXXPM

Insure Audio amplifier is

providing audio signal to

loudspeaker

Insure continuity between

amplifier and loudspeaker on

both terminals

Verify that the source unit output

has a clean undistorted signal

Inspect the Loudspeaker

membrane to insure there is no

damage and no debris is lodged

in front of the membrane

Adjust controls on audio source

unit for desired sound

Verify installation of speakers to

manufacturer specifications

Use Alto Test CD to play sweep

tones through the system,

Identify loose panel or hardware

that might be rattling and secure.

Drawing Number

Rev #

ASW-283

Possible Solution

Date

01/26/15

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