Finetuning Procedure
To finetune the pitch of the Synthino XM, hold down button 4 when powering on the device,
and keep holding it down. You will hear two beeps and then an A4 note (440Hz). Turn the pot
just above button 4 to adjust the pitch of A4 to match your other instruments. When you
release button 4, Synthino XM will remember this tuning even when powered off.
Hardware Test Procedure
If you believe that one of your pots or buttons is not functioning, perform this procedure.
Disconnect power and set all the pot positions to zero. Hold down button 1 while powering on
the device. You will hear a low beep while holding the button. Press each button to ensure
that the tone sounds and the LED below the button illuminates. To test the pots, hold down a
button and then, one by one, turn each pot up and then down again. The pitch of the tone
should vary as you increase the pots.
Factory Reset Procedure
To erase the contents of the EEPROM (saved patches, sequences, fine tuning settings), hold
down both buttons 1 and 2 when power is turned on. You will see LED 1 blink while the entire
memory is being erased.