Expressimo RB 250 mistracking issue


I have a mistracking issue with my Expressimo RB250 / Shelter 501 MK II combo.

I was away for 6 months and wasn't listening to my vinyl rig, now when I got back I noticed that my cartridge started to mistrack a couple of LPs I own.

Those LPs are Direct to Disk editions that have a few very dynamic passages recorded but the cartridge was tracking them fine before. Now it mistracks them (you can clearly hear it on a drums solo when a drummer hits snare drum). Also on a Hi-Fi News Test LP I can only successfully track tracks 6 and 7, but not 8 although I was able to tack #8 before.

So what could've go wrong? I tied to adjust anti-skating, but I increased it all the way to the top limit and it still mistracks. I remember before I had anti-skating set at around 1.4 - 1.5 on the scale from 0 to 2, now even if I move it all the way to 2 it still mistracks.

I'd highly appreciate if anyone could help/recommend what can be done to fix this? Is it a tonearm settings or cartridge problem or something else?

Thank you in advance.
jimtyrro
I did check VTF and tried to play with it all the way from 1.6 g to 2.2g - still no luck.
Hi. I had a similar problem with my Expressimo wired RB300. All of a sudden some of my older LP's began skipping. There was a serious binding problem in the horizontal movement. I messed with the magnetic anti-skate and it did nothing. What my issued turned out to be was that inside, a piece of heat shrink worked it way from under the braided shield and rubbed up against the horizontal bearing. Small surgical scissor, fine tweezers and a steady hand fixed my problem.

Just an idea. It's easy to remove the bottom plug and just look.
Well, my problem is not that it skips a lot of LPs. Just 2 particular ones that have very dynamic passages with drum solo. Every other one are just fine.