Author Archives: Grischa Ekart

About Grischa Ekart

I am a DevOps consultant writing about Docker, Kubernetes, AWS, IT, strategy, management, mobility, business cases, apps, consumer electronics and MBA education. Talk to me on Twitter: @gekart.

Enter Test Mode on Roland XV-5080 (works)

The service manual for the XV-5080 describes a wrong procedure for entering test mode. The correct method is: Switch off device (if on) Hold EXIT then power on device Keep holding EXIT until the “SYSTEM/UTILITY” LED lights up (this takes … Continue reading

Posted in Uncategorized | Tagged , | Comments Off on Enter Test Mode on Roland XV-5080 (works)

Using Roland XV-5050 via USB MIDI on MacOS

If you want to use your XV-5050 with a newer version of MacOS, you don’t have to install a driver. The driver supplied by Roland in 2000 will not work, of course! We will use the generic class compliant USB … Continue reading

Posted in Uncategorized | Tagged , , , , , | Comments Off on Using Roland XV-5050 via USB MIDI on MacOS

Roland XV-5050 Repair

I got a hold of a broken XV-5050. When switched on, it would only display a blank screen and that’s it, no sound, no reaction. After checking audio (no noise whatsoever), it soon became obvious that the device isn’t booting. … Continue reading

Posted in Uncategorized | Tagged , | Comments Off on Roland XV-5050 Repair

Roland XV5080, XV3080 Rotary Encoder Problem Fixed!

This week I received a nice second-hand XV3080. Everything worked fine, except the unit had the dreaded rotary encoder problem: Turning left, values decreased just fine, turning right and strange things happened. Sometimes values went up, sometimes they stayed put … Continue reading

Posted in Uncategorized | Tagged , , , , , | Comments Off on Roland XV5080, XV3080 Rotary Encoder Problem Fixed!

Korg monologue Rechargable Battery Mod Prototype

My Behringer TD-3 mod worked nicely, so it was time to proceed to the monologue. It already is battery powered, but using 6 batteries and recharging done outside of the device. In my opinion a built-in single battery is more … Continue reading

Posted in Uncategorized | Comments Off on Korg monologue Rechargable Battery Mod Prototype

Behringer TD-3 Rechargable Battery Mod Prototype

I love Behringer’s approach to tech and synths. The TD-3 is super affordable and performs like a charm. The community has quickly started modding the TB303 clone and I also decided to give it a simple mod: if there is … Continue reading

Posted in Uncategorized | Comments Off on Behringer TD-3 Rechargable Battery Mod Prototype

Korg Monologue and Minilogue XD Color-Coding Using Chroma Caps

Today I decided for a color scheme for the Korg Monologue and Minilogue XD. Tell me what you think @gekart. Update Final version on the monologue: Issues: The filter knob I purchased in the standard and fat version. The fat … Continue reading

Posted in Uncategorized | Tagged , , , | Comments Off on Korg Monologue and Minilogue XD Color-Coding Using Chroma Caps

Värde Utrusta Wall Cupboard Hinge 30min Fix Ikea Pro Hack

Ikea offered a nice modular kitchen in their program from end of 1990s and 2000s. Unfortunately, they didn’t support it well. I assume it was too expensive to produce. Ikea also resorted to cheap technical solutions. For example, the 70cm … Continue reading

Posted in Uncategorized | Tagged , , , , , | Comments Off on Värde Utrusta Wall Cupboard Hinge 30min Fix Ikea Pro Hack

Enter Docker VM on MacOS Catalina (SSH, xhyve)

As you might know, Docker containers need a Linux kernel in order to run (for Linux containers that is). So how does this work on a Mac, then, it doesn’t have a Linux kernel? Docker Desktop for MacOS will install … Continue reading

Posted in Development, DevOps, Operating systems | Tagged , , , | Comments Off on Enter Docker VM on MacOS Catalina (SSH, xhyve)

Xcode 11 Unable to Boot Simulator Diehard

Xcode on my Macs had a persistent problem after updating to Xcode 10: the simulators wouldn’t work anymore. Lucky me, I was busy with AWS and Kubernetes projects… Updating to Xcode 11 didn’t fix anything. Searching the web didn’t help … Continue reading

Posted in Development, Uncategorized | Tagged , , | Comments Off on Xcode 11 Unable to Boot Simulator Diehard