Thor Audio TA-3000 Phono Preamplifier cartridge loading

I would like to know the location of the cartridge loading resistors on my TA-3000. I would like to confirm the value of  the resistors and possibly change them.  I easily found two large 3 watt 1 K ohm resistors on the circuit board. I know that this was one of the four options for the loading resistors for a MM cartridge.  However I would like to know if these are possibly the resistors.  Any help would be appreciated.