iFixit - Answers With Device "Professional Audio Equipment"

Korg Volca Mix: How to fix the headphone jack?

Wed, 25 Mar 2026 22:51:05 -0700

My headphone jack doesn’t work unless I jiggle it, and it’s getting harder and harder to get it to work now. How do I fix it?

⟐ Commented March 25, 2026 at 22:51 MST

Professional Audio Equipment: Battery Replacement on a Nux wireless guitar system

Sun, 08 Feb 2026 02:02:41 -0700

I have wireless guitar system which replaces the lead on my guitar. It is a Nux C-5RC 5.8G wireless system in which the transmitter shuts off after about 10 minutes even when it is being used. I suspect the battery may be faulty, has anyone actually replaced a battery in one of these.

Cheers Mark

⟐ Commented February 08, 2026 at 2:02 MST

Microphone: rode nt1 not emiting enough signal to my interface

Mon, 29 Dec 2025 02:35:48 -0700

I have a RODE NT1 Signature Series and a Focusrite gen3 as my audio interface, it was running smoothly but something mustve happened. Because the microphone doesnt seem to recieve any signal, i dont think its the interface. Need help.

⟐ Edited December 29, 2025 at 2:35 MST

Allen-Heath GL4 Audio Mixer: Audio mixer not enough phantom power current?

Thu, 20 Nov 2025 02:31:08 -0700

When I plug in several dynamic and condenser microphones into my 32-channel 1995 Allen & Heath GL4 mixer, a specific large diaphragm condenser (LDC) microphone drops out and turns into white noise.

The mic in question works fine on modern audio interfaces
The only solution is to replace it with an small diaphragm condenser (SDC), and I was able to continue my drum recording session.

The particular LDC mic will work on the AH mixer only if it's the only microphone being powered, regardless of which channel the LDC mic is attached. However, when other channels are powered, even without mics attached in the other channels, the prior LDC drops out into white noise.

The Power Supply Unit has been recapped, about 4 large capacitor and 1 medium capacitor, and 2 smaller ones. -- save for some very small capacitors that do not look like they are blown. The problem described was already noted even for the recapping.

Maybe someone has encountered this same problem and knows where to start looking with regards to this mixer?

⟐ Answer edited November 20, 2025 at 2:31 MST

Professional Audio Equipment: Markbass F1 power board - any schematics or answers

Fri, 31 Oct 2025 20:09:55 -0700

F1 Markbass schematic. Not powering up

Panasonic SV-3800: How do I rescue a DAT?

Mon, 29 Sep 2025 16:49:58 -0700

I have a DAT tape that is stuck in a Panasonic SV–3800 machine. At first, just wouldn't play audio, on this machine or on an SV-3700, but it did at least fast wind. Now the machine won't eject or play or do anything. I have tried powering it up several times. The literature I have seen online is insufficient, so far. I have had experience with ADATs in the past, where you could manually move a wheel inside to guide the tape out, but the wheels I see inside this machine won't budge. It is hard to tell if the tape is damaged, since you can't see it from the outside of the machine.

⟐ Commented September 29, 2025 at 16:49 MST

Shure SM57: Microphone won't pick up any sound

Thu, 11 Sep 2025 19:34:56 -0700

My Shure SM57 Microphone stopped working. I've always heard that these things are basically indestructible and I didn't do anything rough or harsh on it, it just stopped picking up sound one day. The phantom power on the the device I plug it into does work (I know this because other mics that require phantom power work). Does anybody have any idea what could be wrong with it or what I can do to fix it?

⟐ Commented September 11, 2025 at 19:34 MST

audio mixer: Catastrophic failure on Mixing Console PCBs, anyone ever seen this?

Tue, 10 Jun 2025 14:24:07 -0700

Hey everyone,

I am working on repairing some PCBs off of a TL Audio VTC Mixing Console. There seem to be multiple points of failure, but I have never seen damage this catastrophic and I am wondering anyone has any ideas about what caused this level of damage.

The first damaged item was an LM339N OP-AMP, which ended up actually destroying the pad connected to pin 12, which is GND. Of all the pins, why would GND be burnt up? This device is part of the VU-Meter circuit was is essentially a peak detector circuit for the volume level.

The next failure point was on another PCB in the same console, located nowhere near the previous one. This seems to have melted on both sides somehow. There was also a ribbon cable underneath the board which melted.

I actually managed to find the schematic for the second board, and it seems to be part of a switching circuit for the Pre-Fade-Listen audio signals. It seems like this IC was responsible for the left channel, because the IC2 is actually responsible for the right channel and it is completely fine.

Strangely enough, the analog switch ICs are fine, it is just the OP-AMPs that are destroyed...

If anyone has seen anything like this before it would be really helpful!

Shure SM58: Suddenly very thin sound.

Sat, 22 Mar 2025 17:32:54 -0700

One of my (5) SM 58 mics suddenly seems to have lost all bottomend- sounds thin and a bit tinny. Same cable/ input all other mics fuller sound. More out put. Any ideas?

⟐ Commented March 22, 2025 at 17:32 MST

Shure SM58: As new Shure SM58 not working

Wed, 19 Feb 2025 20:29:05 -0700

The microphone is, in as new condition, and has been kept in the dust free zipper case that it came in...I used it a couple of times, more than five years ago and it has been in storage since then.

It's not a lead problem as I have used a different mic to prove the lead is working...I have also tried a little WD40 on the connector in case of corrosion...

I'm wondering if the diaphragm may be stuck due to inactivity? Is that a thing, I don't know.

Oddly I have a Beyer microphone (also as new and unused for many years) that seems to have the same problem.

Any suggestions would be very welcome...

Thank you

⟐ Commented February 19, 2025 at 20:29 MST

RockDaMic: Stopped Working. Only red lght on when charging

Sat, 01 Feb 2025 07:49:36 -0700

My RockDaMic Karaoke Mic worked normally. Then when working it turned off. It didn't turn on after that. The power button changed to blue color when turned on. But now it doesn't anymore. The power button turns red when charging like it would normally do.

⟐ Commented February 01, 2025 at 7:49 MST

QU-32: Why is my console is not turning on

Sat, 01 Feb 2025 07:36:24 -0700

my console is not turing on. when i try to switch it on its just shows QU -32 And Allen & Heath branding. no keys are working its frenzied

⟐ Answered February 01, 2025 at 7:36 MST

QU-32: No sound at all the outputs of Qu-32 audio mixer

Sat, 01 Feb 2025 07:35:27 -0700

My Allen and Heath Qu-32 audio mixer had all of its outputs abruptly ceased producing sound. On the meters, input signals could be observed, but there was no sound coming from the outputs. How can I fix this issue?

⟐ Answered February 01, 2025 at 7:35 MST

Blue Yeti: Power Adapter Port Bent

Fri, 04 Oct 2024 23:36:19 -0700

Hi recently someone was cleaning my office and went too hard on my blue yeti microphone and has bent the power port.

Has anyone got any idea on one what the part would be called?

Two how to replace it?

My experience is taking all sorts apart in the PC world just want to get all my information first before going ahead and taking it apart. I don't wish to break it further.

Panasonic SV-3800: Why is my speaker out input is not working

Sat, 27 Jul 2024 03:27:13 -0700

Why is my speaker out input is not working

HyperX QuadCast S: Quadcast S not showing up in Device Manager (Win 11)

Tue, 02 Jul 2024 22:32:48 -0700

I have had issues with my ~2 year old Quadcast S for a bit now, nothing that prevented it for working though. For the past week the microphone had an error show up when plugged in, nothing I couldn't fix, I uninstalled the "unrecognized device" from Device Manager, reinstalled USB Composite Devices and it always started working. Today, the Quadcast S isn't even showing up in Device Manager.
Things I've tried:

Reinstalling Everything USB Related in the Device Manager (showing hidden devices)
Reinstalling Everything Audio Related in the Device Manager
Every other USB Port
Testing the original cable on another device (can charge and transmit data)
Using a USB-C to USB-C cable
Heating it up (as suggested on Reddit by another User with the same issue)
Changing Power Settings

Other Notes:

The Device isn't showing up in Device Manager
The RGB Lights aren't on
There is no connection sound made by Windows when plugged in
There is no pop-up by Windows when plugged in
I use NVIDIA Broadcast
All the drivers are up to date

It's as if the microphone doesn't exist. Help is appreciated, thanks!

⟐ Commented July 02, 2024 at 22:32 MST

AH ZED-10FX: Exeses noise in live sound system

Thu, 27 Jun 2024 02:27:22 -0700

Exeses noise

Microphone: Shure GLXD1 Z2 Wireless Transmitter headphone socket connection lost

Sun, 19 May 2024 11:21:51 -0700

There was a loose connection in transmitter socket. Caused crackling. No visible loose solder connections/wiring. Does anyone have schematics for this?

Behringer PMP2000D: Why is it not turning on?

Thu, 16 May 2024 03:23:18 -0700

Yesterday I turned on the phantom power and forgot to turn it off and now it is not starting.why?

audio mixer: Yamaha DM3D disassembly

Sun, 05 May 2024 14:58:52 -0700

I purchased a DM3D and I want to put an air tag into it to track it as it will be a rental unit.

I’m taking it apart now but I’d love a guide to do this fast and efficiently.

I’ll document it but if anyone else has one and can advise on best practices, I’m all ears.

⟐ Edited May 05, 2024 at 14:58 MST