Roland SP-404MK - Page 22

Introduction > GettingThingsReady > AboutthePowerSupply
PoweringtheUnitviaUSBPort
YoucanpowerthisunitwithacommerciallyavailableUSBadaptor,fromtheUSBportonyourcomputerandfrom
similarsources.
ThefollowingUSBpowersourcescanbeused.
USBACadaptor
USBbuspower(computer,etc.)
Mobilebattery
WecannotguaranteethatthisunitworksuniversallywithallUSBACadaptors,powerfromUSBportsoncomputersor
mobilebatteries.
ConditionsforpoweringthisunitviaUSBport
WhensupplyingpowertothisunitviatheUSBport,besuretouseacablewithUSBType-C®connectorsonbothends.
NootherUSBcablescanbeused,astheycannotprovideenoughpowertooperatetheSP-404MKⅡ.Alsonotethat
evenwhenusingcablesthathaveaUSBType-C®connectoronbothends,youcannotpowerthisunitfromdeviceslike
USBhubswithinsufficientcurrentoutput.
TheUSBportonthedevicefromwhichthisunitdrawspowermustsupply5Vofoutputvoltageandatleast1.5Aof
outputcurrent.
WhennotenoughpowerissuppliedtotheUSBport
IntheeventthatnotenoughpowerissuppliedtotheUSBportofthisunit(suchaswhenyoutrytosupplypowerfrom
aUSBType-Aconnectororwhentheoutputcurrentislessthan1.5A),themessage“Switchtobatteries”appears.
Whenthishappens,pressthe[VALUE]knobtoswitchtobatterypower.Notethatiftherearenobatteriesinstalled,the
unitpowersdown.