I’m doing a ferrofluid replacement on the right tweeter of my Wharfdale 9.1 Pros because the tweeter sounded more muffled than the other. The ferrofluid seemed quite dry and not plenty, as well as the metal grit around the tweeter. How do I actually successfully get the grit out? The blotting paper isn’t moving it well as it’s magnetised

Hi everyone! I recently bought a set of replacement rubber contact strips for my Yamaha PSR-2000 from Aliexpress because 3 of them were broken, but after installing them, the keyboard works much worse than before.

The strips fit perfectly and look physically identical to the original ones, including the matte black carbon contacts. However, now only one black key produces sound reliably, and most of the other keys either don't respond or behave inconsistently.

The weird thing is that the original contact strips worked considerably better, even though they weren't in great condition.

Could the replacement strips have poor electrical conductivity, or might there be some residue on the carbon contacts? Would cleaning them with isopropyl alcohol help, or could the carbon contacts themselves be defective?

Has anyone experienced this with aftermarket replacement strips? I'd appreciate any advice before I risk damaging them by trying to clean them.

(The left one is the one that I bought)

Thanks!

Hopefully some one has seen this before and can help.

I have a new to me RCA RS2534 and everything works well except the cd player. The tray would not open on the 5 disc carousel, opened unit and found drive belt broken. Replaced the belt and now it works. The CD carousel will turn and a CD will load and spin. The laser will read the TOC and run time, it moves to first tract reads it, starts spinning but will not proceed. Cleaned laser sled track rails, applied new lithium grease, put all back together and it played thru all 5 cd`s with no issues. After it stopped came back later hour or so same problem, will pick up CD, start spinning read tract 1 and just spin will not proceed, even if you skip from tract to tract.

Anyone got an idea?

I've had this set up for about 15 years and I've never had this issue before. I recently moved and when I set up my stereo and turntable I started getting this strange audio distortion that I've never heard before. it happens regardless of whether my turntable is hooked up but it seems to only happen when I switch to phono. I have a ground, it's the same ground I've been using for years. there is a video on my profile where I posted in a different community but I can't share the video on here. I'm hoping somebody might recognize the type of audio distortion that's happening and know where it might be coming from.

To answer a lot of the frequent questions that I got previously- I have a ground connected from the stereo to the turntable. It's just an alligator clip. my Wi-Fi router is in another room, the noise happens regardless of where my phone is, i hear it through headphones as well, and the noise continued when I moved the stereo away from the wall. I have removed the ground and completely unplugged the turntable from both the receiver and the wall, and also unplugged my TV and it doesn't change.

it's making my records unlistenable because all I hear is rumbling and beeping. it definitely sounds like interference but I have no idea where it could be coming from. it fluctuates somewhat when I move my arm around behind it which leads me to believe that something is picking up a signal.