No right channel in new cartridge

Tochsi, yes, swap red with white, then blue with green, then hook it up and listen, and don’t let anyone make you anxious. Sounds like you are dealing with a responsible seller and it’s still possible that the fault lies in your system. (I have purchased many used cartridges in my life with no issues.) 

Thanks everyone.

The dropped channel followed the change in leads.

I have loaner from a friend.  It’s Sumiko Pearl he got this yr, never did a second setup for the teens.  So, he never used it. And, both channels work.

Several people said just return it & get something else here. I looked for a while here (consensus this is a very trusted site-but still check the seller) & on other sites. I found this for $550 barely used & the seller has an excellent rep.  It’s a chance to safely jump 1 or 2 levels.  I tend to trust people & he just seems like someone it’s worth working with.  Since I have a loaner, I’m lucky enough to be able to wait 6 wks to get it back. If the SS repair assessment says it’s something bigger, I’ll return it. 

You’ll all laugh but, I had sooo many recd brands & models that I setup a small spreadsheet: Brand, Model, Price, New Price, Sound Characteristics, Review Consensus, Misc. And, I don’t “relish the idea” of going back to it. lol

There are better cartridges even for $500, i paid same price for my Dynavector KARAT 23RS MR Ruby in NOS condition for example. There are many options for MC or decent MM for the same price.

SoundSmith will have to open your cartridge, sometimes it means to break the cartridge and glue it back (not sure about Sumiko). Not sure why do you need all these damage if you’re not even sure he can fix it? Fixing coil is not cheap at all. Reparing coil wire is actually very expensive. Are you sure he can do that in 6 weeks? I think your cartridge will be inspected in 6 weeks. But It can take 3-5 month to fix the problem. 

Well, now that you know it is defective, why not send it back and get either a refund or purchase something comparable?
B

I inquired to a fellow on A'gon a few years back on getting a certain price on a used cartridge he was selling. He verbally agreed on my lower price, but that same day I went on the forums about cartridges and low and behold, there he was talking to another audiophile about the same cartridge he was going to sell me. He told the other guy the cart. had a serious channel imbalance. This ended my pursuit of his cartridge. Yes, I got lucky on that one....