22

TROUBLESHOOTING

If the Concertmate-580 is not performing as it should, these suggestions might help.

If you still cannot solve the problem, take the keyboard to your local Rad io Shack

store for assistance.

Trouble Possible Cause Remedy
No sound, even if keys
are pressed. 1. POWER is set to OFF.
2. MASTER VOL. is
turned down.
3. Headphones are con-
nected.
4. Power supply prob-
lem.
1. Set POWER to ON.
2. Turn up MASTER VOL.
3. Disconnect headphones.
4. Check the power supply.
• Are battery symbols (+/
–) facin
g
correctly?
• Are the batteries fresh?
• Is the AC adapter con-
nected correctly?
No rhythm. MASTER VOL. or
RHYTHM VOL. is turned
down.
Adjust MASTER VOL. or
RHYTHM VOL.
No accompaniment. 1. MASTER VOL. or
A.B.C. VOL. is turned
down.
2. Accompaniment but-
ton not pressed.
1. Adjust MASTER VOL. or
A.B.C. VOL.
2. Press SINGLE FINGER
or FINGERED.
Occasional sound inter-
ference. A refri
g
erator, washin
g
machine, or similar electric
appliance is causin
g
inter-
ference.
Use an outlet on a different
electrical circuit than the inter-
ferin
g
appliance.
No sound when connect-
ed to an external amplifi-
er.
1. POWER is set to OFF.
2. MASTER VOL. is
turned down.
3. Defective connection
cord.
4. Problem with external
amplifier.
1. Set POWER to ON.
2. Turn up MASTER VOL.
3. Replace the connection
cord.
4. Check the external ampli-
fier.
42-4028.fm Page 22 Wednesday, August 11, 1999 4:04 PM