Frequently Asked Questions
16
Problem
Possible Cause and Solution
Even with no power supply problems, the
instrument still could not start up.
Check the hardware.
LEDS -- Not lighting Check the power supply.
2. Check the AC jack, have it been connected reliably. A
poor contact would cause unsuccessful power supply
Button problems
Run “test 3 Function Buttons” to see if all button are OK
(to enter test mode refer “Key Combination Instruction”
chapter
Keyboard problems Run “test 4 Keys” to see if Keyboard is OK (to enter test
mode refer “Key Combination Instruction” chapter
ADC problems
Run “test 5 ADC” to see if all button are OK (to enter test
mode refer “Key Combination Instruction” chapter
USB MIDI device is unavailable from PC
software (e.g. MIDI-OX).
1. Check the USB MIDI jack, has it been connected
reliably. A poor contact would cause failed connection.
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