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How to convert midi 3,3volt (midi out) signal to older 5v level

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Rick
 Rick
Posts: 2
New Member
Topic starter
 

A member of the MIDI Controllers FB group asked the following question and I thought the resolution would be good info to have going forward:

[Does anyone know] how to convert the new midi 3,3volt (midi out) signal so it can be read by a Tyros 4 that only reads the ‘old’ type 5volt signal?

 
Posted : 21/07/2019 8:19 am
Clemens Ladisch
Posts: 321
Reputable Member
 

The Tyros 4 has a very standard MIDI implementation:

The 6N137's output side uses a 5 V supply, but its input works with any 5 mA current at a forward voltage of about 1.5 V. Any standard-compliant MIDI output is able to drive that, even when using 3.3 V.

Why are you asking this question? Is there an actual problem?

 
Posted : 21/07/2019 11:19 pm
Rick
 Rick
Posts: 2
New Member
Topic starter
 

I was asking for a fellow member of the MIDI Controllers Facebook group. He has since returned the unit to the seller. I just now asked if there was a problem with the unit. Awaiting response.

 
Posted : 24/07/2019 4:31 am
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