Radio Shack MD501 User Manual
Page 9
 
9
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If your keyboard is not performing as it should, these suggestions might help. If you still cannot 
solve the problem, take the keyboard to your local RadioShack store for assistance.
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Keep the keyboard dry; if it gets wet, wipe it 
dry immediately. Use and store the keyboard 
only in normal temperature environments. 
Handle the keyboard carefully; do not drop it. 
Keep the keyboard away from dust and dirt, 
and wipe it with a soft cloth occasionally to 
keep it looking new.
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If your keyboard is not performing as it 
should, take it to your local RadioShack store 
for assistance. Modifying or tampering with 
the keyboard’s internal components can 
cause a malfunction and might invalidate its 
warranty and void your FCC authorization to 
operate it.
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61"-019
This equipment complies with the limits for a 
Class B digital device as specified in Part 15 
of FCC Rules. These limits provide 
reasonable protection against radio and TV 
interference in a residential area. However, 
your equipment might cause TV or radio 
interference even when it is operating 
properly. To eliminate interference, you can 
try one or more of the following corrective 
measures:
• reorient or relocate the receiving
antenna
• increase the distance between the
equipment and the radio or TV
• use outlets on different electrical circuits
for the keyboard and the radio or TV.
Consult your local RadioShack store if the 
problem still exists.
You must use shielded interface cables with 
this equipment.
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No sound, even when 
the keys are pressed.
POWER is set to OFF.
Set POWER to ON.
Volume is turned down.
Repeatedly press VOLUME UP to increase 
the volume.
Headphones are connected.
Disconnect headphones.
Power supply problem.
Check the power supply.
Are battery contacts (+/–) facing correctly?
Are the batteries fresh?
Is the AC or DC adapter connected 
properly?
No rhythm.
Volume is turned down.
Repeatedly press VOLUME UP to increase 
the volume.
Rhythm is not started.
Press START/STOP.
No accompaniment 
when accompaniment 
keys are pressed.
Volume is turned down.
Repeatedly press VOLUME UP to increase 
the volume.
Accompaniment keys are not 
pressed.
Press the accompaniment keys (on the left 
side of the keyboard).
No sound when 
connected to an 
external amplifier.
Volume is turned down.
Repeatedly press VOLUME UP to increase 
the volume.
Defective connection cord.
Replace the connection cord.
Problem with external amplifier.
Check the amplifier.
No sound when 
playing MIDI data.
MIDI cables are not connected 
properly.
Check the connection.