Do you guys have a listing on how to get into the service menus on each manufacturer's tv?

Some of our sets have hidden or extra functionality in service-man menus, but since they are intended to be, by and large, industrial electronics, most functionality is exposed.

You are probably talking about rear projection sets. If so, try that forum... Our screens are a touch bigger here abouts ;)
That said, all manufacturers will be different. I remember having to fine tune convergence on a frineds Hitachi (I think) and I had to google up the service code.

The service codes are what I'm looking for. I figured there might be a listing of service codes to gain access to the service menu.

The brand of TV of interest is an Apex.

Good luck on that one. I think BB is the only major seller of that brand from what I can see on the net. I'll bet their service depots don't even have that password..;)

FYI: you are in the wrong forum.