It's a great pity that there are not many repair people around nowadays.
I am somewhat fortunate that about 4/5 mile from my village there is a 'local' firm that supplies and repairs TVs, Videos etc. Consequently, when I bought a new TV., after my original had been 'written off' when my house was struck by lightening, I wished to retain my Daewoo DVD/VHS machine which was deemed to be still in working order. However, it would not function correctly with the new Panasonic TV, and my local firm was informed by Panasonic that my original Recorder/Player was incompatible with their TVs and should be replaced. Fortunately my Dealer could not accept the fact and stripped-down the item and was able to adapt it so that it is now in complete working order.
I am sorry that I cannot help to resolve your problem but have related my experience as an illustration that things can be put right if one can find the right person to repair things.
Ron.