Directed Audio 4500 Guide de dépannage télécharger pdf

Troubleshooting Guide

Owner’s Manual

Liberty

ANCHOR Audio, Inc. (310) 784-2300

100-0005-000 / Revision F, 03/97

Having trouble with the sound system?

Condition Possible Cause

No sound (power LED not lit):

• power switch OFF

• batteries fully discharged (LED flashes briefly)

Charge indicator doesn’t light: • blown fuse

No sound

(power LED lights): • no output from source

• input cable unplugged

• input volume control low or off

• plug inserted into switched speaker output,

but no speaker connected

Shortened battery life: • short in external speaker cable or speaker

• total external speaker impedance < 4Ω

• batteries not fully charged

• batteries need replacement

Distorted sound: • poor connection on input cable

• input signal too strong

Excessive hum or noise: • input cable not shielded

• not using balanced microphone

Having trouble with the wireless system?

Condition Possible Cause

No sound (TX ON indicator lights): • mute switch set to ‘mute’ position

• wireless volume control low or off

• no mic plugged into belt-pack transmitter

No sound

(TX ON indicator off): • sound system not turned on

• transmitter power switch turned off

• low battery or no battery in transmitter

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Résumé du contenu

Page 1 - Owner’s Manual

Troubleshooting GuideOwner’s ManualLibertyANCHOR Audio, Inc. (310) 784-2300100-0005-000 / Revision F, 03/97Having trouble with the sound system?Condi

Page 2 - DATE OF MANUFACTURE

2Important Safeguards Specifications15MPA-4500Rated power output: 70 watts @ 4Ω continuous120 watts @ 4Ω dynamicMax SPL @ rated power: 119 dB project

Page 3 - Accessories

Quick Use GuideLiberty is a portable sound system with a built-in amplifierand multiple inputs. The dual-function feature makes itsuitable for music o

Page 4 - Wireless Operation

Getting Started4Inspection and inventory of your systemCheck unit carefully for damage which may have occurredduring transit. Each Anchor product is c

Page 5 - Feedback Information

Feedback Information5What causes feedback?Feedback is a ringing, howling, or shrill sound that is self-generated by the sound system. It is the result

Page 6 - Battery Operation (MPB-4500)

11Battery Operation (MPB-4500)Caring for the built-in batteriesIt is very important that you fully charge the batteries in yoursystem before first use

Page 7 - AUTO REVERSE CASSETTE

10OperationMode (music/project) Switch Use the mode switch to tailor the soundoutput of the Liberty for your particularapplication:Using the music mod

Page 8 - Operation

MPB-4500MIC 1 MIC 2 AUX BASS TREBLEPROJECTMUSICMODEAUX IN(line level)LINE OUT12 VDC OUT(300 milliamp)250 V/2A(slo-blo)FUSEPOWEROFFONSPKR OUTSPKR OUT(s