- Dec 27, 2014
- Reaction score
Not relevant to electronics, but my daughter maintains that 90%+ of old non-working sewing machines can be made to work after removing lint and applying oil. Old in this case means mechanical--once they started bringing in electronic controls, all bets are off. She says that everything started going downhill with the zigzag stitch in the 1950's.Potential cures depend on the type of button. Is it a conducive pad type and the pads deteriorating? If so, replacement is pretty easy. Clean the metal contacts while you're at it. If the conductive pads are in good shape, clear the metal contacts anyway. If it's some other type, and you can get at the contacts of whatever sort they may be, clean them. It's amazing how often cleaning something fixes whatever ails it. Also, check for bad solder joints.