ma be too late, but i fixed that on my cam

it is more than 2 years when my cam started to make this black stripes by playback....head cleaning did not help, and with new tape it was shortly ok, today i made one big discover for me, i just connect metal mechanism in the tape doors with one wire which was connected to a ground in 220V the same i made with tape, simple small touch and now it works fine for me, some tapes were before unreadable but now they are, so i hope it help my cam is Panasonic GS25