@arenard Wobbly audio sounds like ''''a issue with the VCR tape path. Could be anything from a sticky tape to anything related with your rollers :-) We would need to see where it came off of. Post some good pictures of that as well as the rest of this with your Question. that way we can see what you see. I believe that the issue is related to how the tape goes through your machine and onto the rotating head drum. Normally I would suggest you clean those, which you want to do anyway. You will need to clean the rotating head and the audio head for sure. For that, you would need some +90 % isopropyl alcohol and some cotton swabs. Wet the cotton applicators with the alcohol and and then clean the areas where the tape touches the heads with it. Do that a couple of times until the cotton swabs stay clean after you run them across those components.
While you are working on your VCR check for any belts that may have stretched or are starting to look worn. You may need to replace those.
The other part to pay particular attention to is the capstan and the pinch roller. The capstan is responsible for ensuring that the tape movement has the proper tension and direction as it moves across the audio and video heads. So, if the capstan is dirty or the capstan rod is dirty, bend etc, your tape will not move properly along the heads which could cause issues like the ones you described.
To check the alignments after the cleaning and inspection of all the parts, use the [document|35692]. To work on your unit as whole i.e. disassembly etc. use the [document|35693]
Remember that pictures speak a thousand words. Anything that looks odd, your original roller issue :-) as well as the capstan etc are always good to look at. [guide|21499]