Question posted by Demore on August 16th, 2020
My Umx490 Keeps Displaying The Red Led Light Keep Flashing Randomly Anticlockwis
The octave, assign, user memory red led light keeps flashing on each anticlockwise.. I tried the master reset but doesn't work.. Pls help I don't have enough money to purchase another..... The serial number is S1202156A1J..DATE CODE 1210
Current Answers
Answer #1: Posted by techyagent on August 16th, 2020 5:17 AM
techyagent
Member since:
June 17th, 2014 Points: 4,799,790
Member since:
June 17th, 2014 Points: 4,799,790
I had the same problem but with the behringer. When behringer sold me this keyboard it came with an unregulated power supply (not fixed at 12V) so I changed to one fixed at 12Vdc (regulated) and was the end of the problem.
Sometimes is hard to turn-on the keyboard but it's not related to the power supply, it's about humidity or the contacts to be cleaned.
Follow this guide the issue is related with the power:-
ifixit.com/Answers/View/184872/keyboard+won't+power+with+adaptor+-+yamaha+ac+power+adaptor+class+2+12
Thanks
Techygirl
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