Philips vr 475 VCR no picture and no sound

Recently purchased. Hooked it up with a scart, and got some signal (tape time and other text). All the mechanics work fine except there’s no picture nor sound on any tape. Tried cleaning the head and everything else twice and got picture and sound but very distorted. Tried tracking the picture to get better quality but then after I replaced the tape inside I inevitably lost everything. When I start any tape for a split second there’s some picture and sound and then all the same. So it’s not a problem of the cable as I see text on the tv, I tried cleaning the head a lot. It’s not the problem of the tape as I tried many when there’s confirmed video and I saw video earlier. I don’t know what to do anymore please help