SP-FORUMS

Maybe the psu itself or the psu input jack (soldering issue on the motherboard or something like that, for an aged sx like mine)
only thing i can say is: try with another one (and with batteries fcourse), it's the only way to know if yours is faulty or not

i got a similar issue, but i think mine has a "faux-contact" (doesn't know the word in english haha)
Do you use a Roland PSU or generic one? Also do you have the same issue while using batteries?

sry i read too fast "This is not the sleep function"

Hi,
Are you sure sure this is not the "sleep mode"?
==> https://www.manualslib.com/manual/26103 ... ml?page=40