2. analog
  3. 1407170375

Rega TT-PSU drops right channel

Hi everyone. Recently my RP6 starting dropping the right channel as soon as the needle hit the record. My routine is (with the TT-PSU powered off):

- place the record on the platter after a nitty gritty clean
- power up the TT-PSU while giving the platter a nudge
- clean record with anti-static carbon brush
- needle drop

First I thought a tonearm wire was loose on the cartridge or something along that line. But, if I switch the TT-PSU to 45 and then back to 33 my right channel works just fine. I know Regas ground to the right channel. Could something be wrong with the cable between the TT-PSU and the table? TT-PSU malfunctioning (I think it is still under warranty).

Thoughts / recommendations? TIA
sbrownnw
sbrownnw OP
686 posts
 
Fingers crossed.
sbrownnw OP
686 posts
 
Still no problems after the cable reversal and about 10 LPs, some 45s.
sbrownnw OP
686 posts
 
OK, I now know for sure what caused this hum problem. There is a RCA cable retainer on the RP6 that prevents the cables from pulling on / away from where the RCAs enter into the plinth. Somehow the RCA cables had moved in the cable retainer and was causing hum some or most of the time (probably due to the inertia of the platter starting). After adjusting the cable position in the retainer I found the sweet spot where there is no hum at all and now my phono preamp sounds the quietest it has even been with the volume at 60%+. Hope this helps other Rega owners...
mofimadness's avatar
mofimadness
4,944 posts
 
Scott...thanks for the update. I was pretty sure it didn't have anything to do with the power supply.

If you have to dress the cable just right in the retainer clip to keep it from humming, then there has to be a break somewhere in the cable. Either in the cable jacket or at the point where the cable enters the tonearm itself.

It seems you have it solved for now, but it really should be fixed permanently. I would take the arm off and send it back to The Sound Organization, (the Rega importer here in the states) and have them fix it or replace it. Is it still under warranty?

This will probably just continue to get worse until you fix it for good.
raymonda
855 posts
 
I think you might be discussing where rega grounds their tt, which, if you remove the end stub you will see a compression clip secured in the end part of the threads. It sounds like this has come loose. Check it out and just re secure it and your hum problem should be resolved for ever.
More to discover