We may have found other answers which could help you.
Click here for Mode Pressing Button
how do i tune in a second-hand pre-tuned VCR to my TV?
vcr eats tapes?
no sound - sharp VCT310HM (VC-A105HM)?
I lost my owners manual for my VHS Sharp VC H690 VCR?
how to service Sharp VC-H810?
I have a Sharp 4 head vcr #VC A410?