@niodari - WRT your original question
My question was, if they have some instructions to replace their "premium" built-in RCA cable, that I could follow for the replacement.
Depending on the arm, this can be tricky because the point where the cable is joined to the tonearm wire is inside the arm assembly - so oyu have to remove that plastic portion inside the brass threaded portion of the arm.
Are you certain the problem is one of the RCA plugs?
- It could be the joint inside the arm assembly
- it could be a break somewhere in the cables
- it could be the cartridge (as another person pointed out
To be 100% sure - I would use a multi meter to test for continuity (i.e. Zero resistance) between those little tabs that clip onto the cartridge and the RCA plugs on the other end of the cable
- If there is continuity, then the problem is with the cartridge
- If there is no continuity then you will need to figure out where the break in the wire is.
- you will have to remove the am, because the "break" may be inside the arm assembly itself
Here is a video of a Rega arm assembly. It is too fast to watch, so in your youtube settings (bottom right of youtube window) set the playback speed to 1/4 or something more useful.
The section of interest to you is about 85% of the way through the video where the guy attaches the cable to the arm
Good luck - Steve