Are There Any 52 Models I Have A Teac Vcr Model Number Mv 3090 And Its Not Working, There Is A Fault Number On The Screen Its Rf 52?

I have a teac vcr model number mv 3090 and its not working, there is a fault number on the screen its rf 52? - are there any 52 models

Can someone tell me what that means pleaaassseee !!!!!!!