5
About the Backup Battery
A backup battery (lithium battery) is used to keep internal data
(settings) from being lost, even when the power cord is unplugged.
Internal data will be lost when battery power is depleted, so it is
recommended that data be stored to an external data recorder
such as the Yamaha MIDI Data Filer MDF3 (→ page. 11), or keep
records of settings in memo form. The average battery life span is
about 3 years. When replacement becomes necessary contact
the music store where the unit was purchased, or a qualified ser-
vice representative, to perform the replacement.
• Do not attempt to replace the backup battery by yourself.
• Keep the backup battery out of reach of children.
•“E6” appears in the display when the battery becomes depleted.
Internal data may be lost.
• Data may be lost if the unit is improperly handled or if repairs are
performed.
●Avoid using your amplifier in the following locations to prevent
possible damage:
•In direct sunlight or next to heating equipment.
•Extremely cold or hot locations.
•Locations exposed to high humidity or excessive dust.
•Locations subject to strong shocks or vibration.
●Before making any connections, make sure that the power on
the DG100-212 and any external devices is switched OFF.
●To protect the speaker from possible damage, always set the
OUTPUT knob to “0” before switching the power ON/OFF.
●When connecting a speaker to this unit make sure to turn OFF
the power first.
●Do not apply excessive force to the switches and controls.
●Your Yamaha guitar amplifier is a precision musical instrument.
Handle it with care and avoid dropping or bumping it.
●For safety, always remove the power plug from the AC wall
outlet if there is any danger of lightning striking in your area.
●Keep the amplifier away from neon signs or fluorescent lighting
to prevent noise pickup.
Precautions●To prevent damage and possibly electrical shock, never open
the case and tamper with the internal circuitry.
●Never use benzene, thinner or other volatile liquids for cleaning,
as these chemicals may cause damage or discoloration to the
finish. Always use a dry, soft cloth to wipe off dust and dirt.
Precautions................................................................... 5
The Panel Controls ......................................................6
■ Front Panel...................................................................... 6
■ Rear Panel...................................................................... 7
How to use the DG100-212.......................................... 8
■ First, achieve sound output............................................. 8
■ Adjust the TRIM level...................................................... 8
■ Sound Settings................................................................ 8
■ Reverb Settings............................................................... 8
■ Tape Echo Settings......................................................... 8
Store and Recall........................................................... 9
■ Store Settings ................................................................. 9
■ Recall Memory (Recall) .................................................. 9
Easy to Use Functions............................................... 10
■ Using MIDI to Recall Memory....................................... 10
■ Using MIDI to Control Volume....................................... 10
■ Using MIDI to Turn ON/OFF the Reverb
and Tape Echo Effects.............................................. 10
■ Speaker Simulator ........................................................ 10
Contents
Utility Mode................................................................. 11
■ Creating a Program Change Table................................11
■ Set the MIDI Receive Channel...................................... 11
■ Set the MIDI Merge....................................................... 11
■ MIDI Bulk Out................................................................ 11
■ MIDI Bulk In .................................................................. 11
■ Speaker Simulator ON/OFF.......................................... 11
■ Set the Volume Pedal Position...................................... 11