Hi. On 2015 I bought a RH450 from sweetwater, USA. After 2 months using, all the front pannel stopped working.

The amp stills sound, but when you move the knobs or pres buttons, nothing happens. The tuner works fine, and when you plug the headphones works fine. The volume I guess it's working just with the power amp, maximum power. 

I've sent the amp to Digicustics, offcial repair partner in Argentina where I live. The said need to change the mainboard. For our economy, the repair price is more expensive than buying a new one. So I'm trying to get the spare part in the US. I have a courier can birng me the part to South America. Can anybody help?

As Musc Tribe service says, the spare part numer is A09-00001-63348.

I've been looking here to find some schematics https://service-tcgroup.tcelectronic.com/rh_450.asp, here's the say Mainboard P18301-C

If can't get the spare part, maybe I can get the schematics to try to repair with a local technician.

Thanks in advance!

Hi everyone,

i just bought a factory new Deepmind 12  and I am super satisfied with the sound and everything works fine using headphones.

Yet, when plugging the audio out into either

1) My Guitar Amp / Bluetooth Speaker (PositiveGrid Spark, original 19V switching-power-supply) both
1-a) aux input
1-b) Guitar input

2) My trusty 90'es JVC Stereo System

3) an USB-Soundcard (on a laptop with Charger plugged in)

... and even more mains-powered devices of all sorts, with Euro and with Schuko style plugs (I live in Germany) into the wall, in different wall outlets in my flat, even one pulling the fuse for every other room/appliance. In any of the cases

I get a high-pitched, sometimes slightly pitch shifting, often periodically pulsing whine.

I used several audio cables and adapters without any success of fighting this noise.

The problem seems quite similar to https://community.musictribe.com/discussions/14773/217942/unwanted-noise-of-the-dm12#comments_body_217944

Yet there are some differences: The noise occurs even when the unit is turned off! When I unplug the power cable there is a mains humming instead of the noise. The noise seems to peak at 1,94 kHz. (see attached screenshot from a phone app and phone recording)

Depending on the used output jack, audio device and (and its input jack), the noise is either quite subtle or even louder than the instrument on half volume. In any case it is never fully gone.

It has no correlation with anything on the device (fan speed, wheel LEDs, VCA and its noise floor, ...) - as said it is even present when the Power swithch is on 0.

Now for the stranger part:

When taking the screenshot I noticed that the activity on my phone chipset (or display/display driver) altered the noise quite audible. The screenshot below shows this effect (of a previous screenshot) right in the middle of the spectrum flow.

So the whine seems to be picking up EM interference maybe because some kins of shielding? grounding? does not work propperly. I am no electronics person, so this might all be the wrong conclusions.... I have never experienced something like that with other audio equipment (e.g. Behringer Crave). I had also done a full calibration but the problem persists.

Another fun fact that puzzles me: The moment I pull the charger out of my Notebook (to which the USB soundcard is connected), the audio level coming from the deepmind drops drastically. What is going on there?

Does anyone have any idea? Am I doing something terribly wrong? Or is it a case straight for returning the device?

hi everyone,

My crave has quite noisy audio out. Osc. sound can be heard very low. It is connected to S32 via DI800. I tried various connection options like direct to S32 and wing local input. Nothing changed. I uploaded a video. It may be more practical to determine the problem and possible solution.

Thanks

Hello guys,

i have a very frustrated problem with my VLX3. The screen is just flashing the whole time. I've tried to reinsert the SD Card inside the VLX3, but it change nothing. Please Help me. Thanks a lot!

I attach the video how its look like.

Regard,
Chris

I'm using a iPhone 6 with camera connection kit and Garage Band.
I can listening the GarageBand's piano on my VL3x's phone, but this audio is not working like a input on my loop. My Input Loop is set to ALL.
I spent all day reading the manual and looking for how to do this and did not locate it.

How can I recored the Aux Input on a Loop  and sync the GarageBand MET with the VL3x ?

I recored a video showing it

https://youtu.be/zs5NS5P8DTE