Optimus CONCERTMATE 690 42-4035 - Manual (Page 18)

18
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
Concertmate 690 Power supply problem. Check the power supply.
Are batteries installed
correctly?
Are batteries fresh?
Is the adapter connected
properly?
No accompaniment
when accompaniment
keys are pressed MODE is set to FINGERED
and you pressed less
than three keys for a
chord.
Press at least three accom-
paniment keys.
Occasional interfer-
ence Refrigerators, washing
machines and similar
electric appliances are
causing interference. Use an AC outlet on a differ-
ent electrical circuit, away
from the appliance.
42-4035.fm Page 18 Thursday, August 12, 1999 8:05 AM