I have a JVC 4DD-5 which no longer decodes CD-4 albums. The last time I tried to use it, the CD-4 radar light was always on. Now I no longer have a cartridge/stylus for playing CD-4 records, so I can do no further testing. I really just want to toss it out, but if anyone who lives in the Washington, D.C. area wants to pick it up from me, it's yours for the taking. Offer good until 1/1/22. PM me if interested.