Click on your instrument target in YEM. Go through your imported packs and uncheck heavy voices or styles that you do not plan to use until the memory indicator turns green. Issue 2: Keyboard Doesn't Recognize the USB File
PSR-S670, PSR-S770, PSR-S775, PSR-S970, PSR-S975 yamaha expansion manager 270 upd download
Yamaha Expansion Manager 2.7.0 Update (270 UPD) Download and Installation Guide Click on your instrument target in YEM
Open YEM, click (+ icon), and select Import Instrument Info . Choose the file from your USB drive. How to Install Expansion Packs Using YEM 2.7.0 click (+ icon)