cartridge setup help


Was wondering if anyone near Las Vegas with cartridge setup experience? I purchased a used AT150MLX for my friend, but we can't seem to get a firm screw connection in the open channel. Would be willing to pay for help.
-George
auntjenof2
It's worth the drive to Pasadena, to have Brian Berdan at Audio Elements correctly install and perfectly align the cartridge.
I live in Henderson,  I use a AT150MLX and I have a bit of experience.  Email me at allan.walter@yahoo.com and I'll shoot you my phone number.  Also I don't want your money, It's the season of giving!

The problem description is not clear. What do you mean with

''the screw connection in the open channel'' ? ''Open channel''

make no sense by whatever cart. There is left and right channel

by any stereo cart but not ''open channel''.

vegasears, thank you so much. I passed on your info to my friend. 
Nandric, I think i mean it is a non threaded cartridge body. If you look at a pic online it looks like an open channel for the screws. BTW, he was using a Clearaudio Virtuoso that I had purchased from you years ago. We were playing an old Elvis 45, and the needle went flying and snapped off the whole cantilever.