originaluser

I have a Atari 1010 tape deck, hong kong made. Last year it stopped playing so I got a new belt of ebay, not an official belt but one similar to the size that was on it, the tape drive plays, rewinds, forward winds no problem. Now all I get when trying to load any cassettes is error codes 138,140,142,137. All happen within about 17-19 on the tape counter. The belt I bought was 81mm which I think should be fine, as my original one was stretched and slack. Could these error codes be caused by the new belt not having the correct tension or could they be due to the sio lead. Do sio leads need replacing as I do seem to get a lot of interference from it, I can move and twist the cable to make it either quiet or noisy. I have also cleaned the heads and pinch with ipa. Any recommendations on how to get rid of these errors would be grateful