I hadn't used my 857 for a few years and noticed constant static after powering it up. Sure enough, the 3 ceramic filters had the white crusties. I sent the radio to Yaesu in Cypress, California and they replaced the filters for less than $75 for parts and labor and about $25 for shipping. I bought a set of the filters to do the job myself but after watching a couple of YouTube videos on someone actually doing the work, I decided I wasn't confident enough in my soldering skills around surface mount parts to do the job myself. I also had them do a tune-up while they had it. The turn-around time was about 3 weeks due to the virus. Well worth the price to have it done by the experts. The radio works great now.
73,
Bill N6EF
Bill 3091E N6EF