OLEDconnector
OLEDbacklightboostercircuit
5. Cannotsavethedata
FortheSPIFLASHissues,pleaserefertotheA1chippartinthissectionCannotturnonthepower.Checkif
theSPIFLASHisproperlysoldered,orifthechipisdamaged.
6. MIDIissues
1) CheckwhetherMIDIblockandMIDIlinearenormal.
2) CheckiftheMIDIOutcircuitisproperlysoldered.Ifthetriodeisdamaged,replaceit.
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