Optimus 42-4035 owner manual Troubleshooting, Problem Possible Cause Suggestion

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42-4035.fm Page 18 Thursday, August 12, 1999 8:05 AM

TROUBLESHOOTING

If your Concertmate 690 is not performing as it should, these suggestions might help. If you still cannot solve the problem, take your Concertmate 690 to your local RadioShack store for assistance.

Problem

Possible Cause

Suggestion

 

 

 

 

 

 

No sound from the

Power supply problem.

Check the power supply.

Concertmate 690

 

 

 

Are batteries installed

 

 

 

 

correctly?

 

 

 

 

 

Are batteries fresh?

 

 

 

 

 

Is the adapter connected

 

 

properly?

 

 

 

No accompaniment

MODE is set to FINGERED

Press at least three accom-

when accompaniment

and you pressed less

paniment keys.

keys are pressed

than three keys for a

 

 

chord.

 

 

 

 

Occasional interfer-

Refrigerators, washing

Use an AC outlet on a differ-

ence

machines and similar

ent electrical circuit, away

 

electric appliances are

from the appliance.

 

causing interference.

 

 

 

 

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Contents Concertmate Features FCC Wants YOU to Know Contents Connecting Power Using BatteriesPreparation Using AC Power Using Vehicle Battery PowerUsing the Sheet Music Stand Control Locations Operation Basic OperationUsing the Preset Sounds Selecting/Playing a Preset SoundCurrent New You Sound Press Using the Preset AUTO-RHYTHMS Playing Keyboard Split SoundsPlaying Drum/Bass Split Sounds Using FILL-IN Selecting/Playing an Auto- RhythmUsing Auto Accompaniment Easy Random FingeringNumber of Keys Pressed Chord TypeStandard Fingering Adjusting the POLYPHONY/TEXTURE Selected Feature At High-Level At Low-Level Polyphony Number of Notes You Can PlayTroubleshooting Problem Possible Cause SuggestionCare and Maintenance Specifications Fm Page 21 Thursday, August 12, 1999 805 AM Fm Page 22 Thursday, August 12, 1999 805 AM Fm Page 23 Thursday, August 12, 1999 805 AM Limited One-Year Warranty RadioShack Division of Tandy Corporation Fort Worth, Texas