no picture, but plays (sound), when i press menu button on remote control?

"matsui video-recorder vp9408"
on my "matsui video recorder", vp9408, that i just received in good working condition, i tested it by playing a few various videos, and then the following day i went to play a few videos, and now there is no picture, but only plays sound, when if i press the menu or index buttons on the remote control, as this is really confusing, and it also plays ghostly like picture in gliches with sound, as i have changed using 3 different scart cables, and also using 2 av cables by plugging & connecting iinto the rear of the video recorder in the rf-out & rf-in, which was the usual method before scart cables became more poplar, and i have also connected the video recorder up to 2 different tv's, but still the same problem of >> no picture & no sound, unless you press the menu or index button on the remotes control, which takes you into the set up menu's, >>> and then you get the (((sound))) playing while it's in the menu screen...