for Los Angeles can anyone recommend someone to hire install phono cartridge

you have been given 3 great names !

Hey saburo. I remember Jay Nakamura from my days working at Sound Factor in Santa Monica. I thought he was one of the best TT guys I knew in the LA area. Is he still in business or just working on the side having fun.

Are you asking because you don’t know how to set up a cartridge at all? Or are you asking because you want it fussed over until it is perfect?

With the Lenco you will need a stylus pressure guage. You will need a protractor to set alignment correctly. I have both of these although a protractor is something you can easily print out (make sure it is at correct scale!). I don’t know about your arm but you will need azimuth adjusted along with VTA if your arm has the ability to do this. I live in Redondo beach and work in Santa Monica. I’m not a professional at all - just an enthusiast. But if you’re close by I might come and help you out - no need for payment. PM me if you want my help.

I have the Feickert Protractor, Adjust + and Fozgometer that can help you get the best alignment for your cartridge.  Not a professional - best if you know how to adjust/work your tonearm.  I am in Pasadena, but only available on weekends and after the 24th.  PM me if interested - like matteos, no need for payment.

I had a nice long chat during my first visit to Brooks Berdan Ltd in Monrovia today.  They have great expertise and a lot of experience with turntable setup.  Another terrific go-to shop for your phono needs.