Every single piece of equipment onboard an aircraft must be operating in order to be legal for any flight, IFR or VFR. The only way you may operate an aircraft with inop equipment is if it has been placarded "INOP" and an entry made in the aircraft logbook. When the next inspection rolls around, the inop equipment must either be fixed or permanently removed with another entry made in the logbook.
Even if you are going on a VFR flight, if there is an inoperative VOR receiver in the aircraft that is not placarded, you are flying illegally. You can look at 91.213 for all the details.
P.S. Of course the rules are slightly different when operating using an MEL.
Even if you are going on a VFR flight, if there is an inoperative VOR receiver in the aircraft that is not placarded, you are flying illegally. You can look at 91.213 for all the details.
P.S. Of course the rules are slightly different when operating using an MEL.