My recently purchased 3404 has developed a ground hum. I am using a DIN to RCA converter purchased off of Ebay that said it worked for this TT. (I know I know). Anyway, it does work but there is a persistent hum. I did research and have soldered a bare wire to the sleeve of the DIN and connected it to the ground on my amplifier. The hum is still there. I took the bottom off and there is a small black wire that is hanging in the air that under a mag glass looks broken and there is a solder joint near it that clearly used to have a wire soldered to it. Here is a pic:
I soldered it onto the broken link and the hum is worse.
I have downloaded the manual and will study it next. Thoughts?
Well, I took it apart and tested continuity from the DIN to bottom of the TT. My left channel was hinky as was the earth wire. Surgery ensued - I cut off the DIN connector and retested continuity. All was good then. So, I soldered in new RCA connectors and an earth wire. Shrink tubing to protect the connections. All connected to my amp now as should be and it sounds great. One other thing I did was to take off the cartridge and spray just a little DeOxit in and then carefully wiped it with a small bit of paper towel and let it dry for half an hour while I did the soldering.
Sounds great and thanks for the tip on the DIN.
Have a good day!
I will do that. Can you describe what you mean though? I am fairly adept at figuring things out and can replace parts and such. Your comment sounds more like maintenance and I would curious as to what you recommend?
jmccanna wrote:I am not too keen on messing with the motor but coud see lubing the bearings. It does have a little bit of rumble. The belt is in good shape and it runs smoothly. Thanks.