This may be an easy fix ... sounds like the rails that the laser sled rides on have dried up and need to be re-lubricated.
When the rails dry up, the laser sled will momentarily bind, causing the skipping.
Check with Jolida as to what type of lubricant you should use, or take it to a repair shop, and have them Lube it ...
When the rails dry up, the laser sled will momentarily bind, causing the skipping.
Check with Jolida as to what type of lubricant you should use, or take it to a repair shop, and have them Lube it ...