Check the resistance of the wiring on both channels from cartridge to end of cable. Should be the same on both, just a few ohms. Also check resistance l - r, which should approach zero.
You might have broken the right cable which would require a rewire. Could be the cable out to the preamp as well. More likely you loosened a solder connection that will have to be resoldered. If you have to rewire the arm, use the same type of inexpensive wire, good quality, though, that Goldring uses for this.
You might have broken the right cable which would require a rewire. Could be the cable out to the preamp as well. More likely you loosened a solder connection that will have to be resoldered. If you have to rewire the arm, use the same type of inexpensive wire, good quality, though, that Goldring uses for this.