What to do if my Optimus Concertmate 410 has no power?
If your Optimus Electronic Keyboard isn't powering on, check the power supply. Make sure the batteries are installed correctly and are fresh. Also, verify the AC/DC adapter connection is correct.
Why is there no sound coming from my Optimus Concertmate 410 Electronic Keyboard?
If you're not hearing any sound from your Optimus Electronic Keyboard, the volume might be turned down. Try turning up the volume.
What to do if my Optimus Electronic Keyboard is silent but not off?
If your Optimus Electronic Keyboard is silent, check if headphones are connected. Unplug the headphones to hear sound from the keyboard's speakers.
How to turn on the power on Optimus Concertmate 410?
If your Optimus Electronic Keyboard isn't working, make sure the power is turned on. Set the power switch to the 'ON' position.
What to do if rhythm doesn't start on Optimus Electronic Keyboard?
If the rhythm isn't starting on your Optimus Electronic Keyboard, press the START/STOP button.
What to do if accompaniment doesn't work on Optimus Electronic Keyboard?
If the accompaniment isn't working on your Optimus Electronic Keyboard, make sure you press the A.B.C. button.
What to do if my Optimus Concertmate 410 Electronic Keyboard connection cord is defective?
If you suspect the connection cord of your Optimus Electronic Keyboard is defective, replace it with a new one.
Learn about sample songs and their capabilities.
Explore the variety of instrument sounds available.
Learn songs phrase-by-phrase with guidance.
Learn how to power the keyboard using various sources.
Step-by-step guide to turning on and basic use.
Sound| polyphonic sound | 4-note (Maximum) |
|---|---|
| preset voices | 12 |
| auto-rhythm | 12 |
| demonstration songs | 18 Songs |
Built-in Features| effects | REVERB, OCTAVE |
|---|---|
| melody memory | Up to 17 notes |
| percussion pads | BASS DRUM, SNARE DRUM, CYMBAL, HI-HAT, TOM |
Power| power sources | DC: 6 C batteries, AC: 120V, 60Hz, Vehicle Battery: 9-12V |
|---|---|
| power consumption | DC 1.5 W |
| jacks | PHONE, DC9V |
Weight and Dimensions| dimensions | 3[1]/16 × 22[5]/8 × 8[3]/4 Inches (78 × 575 × 222 mm) |
|---|---|
| weight (without batteries) | 3 lb 1.4 oz (1.4 kg) |
| built-in speakers | 3[1]/2 Inch × 2 (4 ohm) |
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