Check remote switch status if its working properly. In switched modes you have to get no more than 1 ohm resistance between appropriate switch contacts. And also check if tape door sensing switch is ok - when doors are closed it should be no more than 1ohm resistance. Sometimes buttons are corroded inside, but its less likely. Cheers
I owned one but all the buttons not work when I press I don’t know why
Check remote switch status if its working properly. In switched modes you have to get no more than 1 ohm resistance between appropriate switch contacts. And also check if tape door sensing switch is ok - when doors are closed it should be no more than 1ohm resistance.
Sometimes buttons are corroded inside, but its less likely.
Cheers