Disclosed is a touchscreen remote control device and system having means of locating the remote if misplaced, wherein the remote includes an imbedded receiver, television control emitter, a signal generator and a touchscreen interface. The imbalance abnormality is detected based upon a variation degree in output of the air-fuel ratio sensor. The VCO circuitry may include multiple VCO circuits that receive power supply signals from a positive power supply terminal and a ground power supply terminal.