basically when i played for 1 or 2 ours the red light above my FENDER HOT ROD DE VILLE 2 decreases its intensity and the sound gets an ugly distorted fuzzy sound


EDIT: i used it for about 40 minutes and it dosent turn on, not even the light :(


i checked the socket from the two big tubes and they look fine to me



i dont know maybe it's the connection that goes to the speakers? there is only one input being used, i dont know nothing about amps or circuits

⟐ Answer accepted March 03, 2026 at 18:45 MST

⟐ Answer edited February 11, 2026 at 21:09 MST

I'm repairing a Behringer U-Phoria UMC404HD. There was a tiny component that received both the signals of USB data(+) and data(-), before allowing both to proceed towards the XMOS chip. Please take a look at the image above to check out how the component (with arrows pointing at it) and the surrounding area looks in an undamaged UMC404HD.

There has been an attempt, by the former owner, to repair the USB connections, which left this particular component destroyed.

Could someone tell me what is this component and, if possible, the specs it might have, so I can order a suitable replacement?

I don't have much knowledge in parts names and uses, but I can do a good job, when it comes to repairing circuit boards.

⟐ Answered January 08, 2026 at 12:09 MST

Using my Fender , there is no hum whatso ever

⟐ Commented December 29, 2025 at 17:01 MST

⟐ Edited December 15, 2025 at 2:05 MST

The dial is in two parts almost evenly. One half still attached, the other loose.

Motor functionality via Ortho remote fails as does physical manipulation of the dial. the dial believes it is at 100% and returns to 100% after physical rotation of the (remaining) dial and when using the ortho remote.

The Unit suffered no external damage aside from the dial.

However, when attempting the Loop functionality from playback on FM and BT, the unit automatically enters Playback Speed Mode.

I can hear the volume motor working away when i have the device on line in with no input active.

Kind thanks,

Aaron

⟐ Commented October 03, 2025 at 1:51 MST

⟐ Answered September 26, 2025 at 17:45 MST

I do not have any experience with repairing a motherboard like this and would there appreciate your help.

⟐ Commented August 03, 2025 at 4:40 MST

I need your help in figuring out how to repair my zoom V3 Vocal Processor. The knob to change keys isn't working anymore. I had it checked and they told me that there was an issue with the potentiometer and there isn't any compatible replacements here in our country. Can anybody help me with workarounds? Thank you!

⟐ Commented June 10, 2025 at 11:29 MST

⟐ Answer edited February 20, 2025 at 18:53 MST

⟐ Commented November 13, 2024 at 20:50 MST

Edit: new issue, whining with no volume on, loud noise when volume on. New better pictures and new video

Edit:

⟐ Commented September 18, 2024 at 11:48 MST

This is the instrument when I was still building it.

It has been very difficult to find a replacement of its main board and buying another is a bit out of my budget. Behringer also no longer produce this type anymore and I do wish to preserve the aesthetics of three identical keyboards (keys don't all look the same between different makes). Online, I found keyboards that are horrendously expensive. Locally the only one that seems to suit me best and the cheapest I could source is Eur145.

I tried to identify the culprit component and thought it was one of the diodes as it showed readings both ways unlike the other 3 but on taking it off the board, which was not easy, it worked as expected. I tried soldering it back and not sure it is in place. :-(

I still have a damaged USB controller and now with two problems not just one.

Is there anyone who can help in any way to restore my organ back to its 3 keyboard layout?

⟐ Answer accepted August 04, 2024 at 15:59 MST

⟐ Commented July 09, 2024 at 9:11 MST