VHS side doesn't have pictures

how do you have it hooked up? there are different connections for the dvd and vhs sides of the player

If you followed the instructions and it doesn't work then it is defective.
I recommend you take it back to the store.
Most stores offer a week or more for buyers to return/exchange a product.

I had the same problem, so I took it back to basics. Hooked cable into VCR/DVD player and another cable from player to TV. S cable too, plus red/white audio. Plays DVDs on AV1 and VHS on Channel 3 on TV setting.

Select AV-1 or some thing in TV and plug DVD recorder Video-Audio output in AV-1 input of TV, playback any DVD and confirm its picture and sound in TV. Press Stop button of DVD recorder to stop playback.
Now plug Video-Audio output of VCR in DVD recorder input and select AV Input in DVD recorder, insert VHS tape in VCR and playback it and confirm you get VHS picture and sound in TV via DVD recorder.
Hookup between TV, DVD recorder and VCR is completed.
Playback VHS tape in VCR, Insert blank DVD disc in DVD recorder and press Record while you see VHS tape picture in TV.
Hope this info will help you.

Check ur RCA cable setting might have a short in the cables.

suspect scart lead, check to see that it is firmly plugged in. Also, many dvd players have a bluescreen/screensaver function, check to make sure this ihasn't been enabled in the system set up menu.

need to check the video audio output connectors sounds like it hooked to and output that is only for the vhs

VHS part of your machine got video head dirty / clogged. use good quality VHS head cleaning cassette to see picture again.

clean the head of your vcr that will help also connections of the wires good luck.

Your unit has it seems to have developed a video problem. it could be in the video switching IC or the video processor. Its going to need a trained technician, who knows how to use an ocilliscope to find the video problem.. Good Luck