# In Search of a Keybed Cable Pinout Diagram-- Fatar (now StudioLogic) Studio 900

**URL:** <https://forums.syntaur.com/t/in-search-of-a-keybed-cable-pinout-diagram-fatar-now-studiologic-studio-900/9573>\
**Category:** Synth Repair\
**Tags:** studiologic-fatar, no-power\
**Created:** [October 4, 2026, 7:37pm UTC](https://forums.syntaur.com/t/in-search-of-a-keybed-cable-pinout-diagram-fatar-now-studiologic-studio-900/9573 "2026-10-04T19:37:04Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Styxfan.wi](https://forums.syntaur.com/letter_avatar_proxy/v4/letter/s/91b2a8/32.png) [@Styxfan.wi](https://forums.syntaur.com/u/Styxfan.wi)\
**Post date:** [October 4, 2026, 7:37pm UTC](https://forums.syntaur.com/t/in-search-of-a-keybed-cable-pinout-diagram-fatar-now-studiologic-studio-900/9573/1 "2026-10-04T19:37:04Z")

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[Fatar/Studiologic] [Studio 900] – [No Power/want to Mod]

> This is an update/ request follow up on my No Power issue with my Studio 900 MIDI controller keyboard.
> 
> I have been unable to repair the main circuit board to get the unit to power up.
> 
> I have decided to modify the board by repurposing the keybed. I’ve got a few Teensy 4.1 microcontroller boards, and they can be programmed to be used as HID MIDI controllers.
> 
> I’m wondering if there is anyone here who has chased (ohmed out) the keybed matrix (I’d rather not have to reinvent the wheel if someone has). It appears to be 2 x 20 pin ribbon cables, that I don’t mind tapping into. Even hand drawn or hand lettered list wold be appreciated.
> 
> If nobody has done this, or has records that show this, I’m willing to take the time to do so, and I’d be happy to share.
> 
> I put myself on the wait list for a different main board on the Syntaur store page, but there are 17 of us on the list. I think that this could be a good community project. Maybe I could figure out how to do a GitHub or Instructables page to document everything. The programming is bog standard Arduino (C++), and is redily available, very useable (with a few minor customizations), and is straightforward.
> 
> I’m looking forward to the challenge of this project, and thank you in advance for any information you can provide!

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<div class="post-metadata">

**Author:** ![Styxfan.wi](https://forums.syntaur.com/letter_avatar_proxy/v4/letter/s/91b2a8/32.png) [@Styxfan.wi](https://forums.syntaur.com/u/Styxfan.wi)\
**Post date:** [October 4, 2026, 7:50pm UTC](https://forums.syntaur.com/t/in-search-of-a-keybed-cable-pinout-diagram-fatar-now-studiologic-studio-900/9573/2 "2026-10-04T19:50:47Z")

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I thought I’d toss this into a reply… the long term goal for this Fatar would be to embed a mini PC inside and set that up as a dedicated VST player for my home studio… is use a laptop with a 61 key controller (MUCH lighter weight) for my performances.

Thanks again for having a look!

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<div class="post-metadata">

**Author:** ![Styxfan.wi](https://forums.syntaur.com/letter_avatar_proxy/v4/letter/s/91b2a8/32.png) [@Styxfan.wi](https://forums.syntaur.com/u/Styxfan.wi)\
**Post date:** [October 4, 2026, 8:18pm UTC](https://forums.syntaur.com/t/in-search-of-a-keybed-cable-pinout-diagram-fatar-now-studiologic-studio-900/9573/3 "2026-10-04T20:18:16Z")

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Yet another post on this. I found this schematic in a round about way:

 ![Matrix_88](https://forums.syntaur.com/uploads/default/original/2X/6/6ce0a27aa7a1a8168010f65218c01c5364ea3a81.gif)

Anyone able to say that this is what I’m looking for? It seems to be correct. Thanks!