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midi2
Joined: 22 Aug 2020 Posts: 16
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Posted: Fri Dec 02, 2022 1:15 pm Post subject: MIDI out problem SOLVED |
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Hello
i have problems
There is no any reaction to the midi out from korg triton studio. I have 3 midi interfaces: with esi m8 - problem, with china Midiman - problem.
Only If I connect korg directly to another synth or to another midi interface (m-audio), everything works normally.
I see with OSC on studio out
max is 32V
an on triton extreme out - works fine with any midi interfaces
max is 50V
Any idea?
Last edited by midi2 on Mon Dec 05, 2022 4:34 pm; edited 3 times in total |
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midi2
Joined: 22 Aug 2020 Posts: 16
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Posted: Fri Dec 02, 2022 4:20 pm Post subject: |
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On studio midi out - 3.3V
on triton extreme - 4.8V |
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midi2
Joined: 22 Aug 2020 Posts: 16
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Posted: Sat Dec 03, 2022 3:39 am Post subject: |
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main question - is it normal for triton sudio and esi m8?
or did they broken something on the midi out? |
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midi2
Joined: 22 Aug 2020 Posts: 16
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Posted: Sat Dec 03, 2022 7:39 am Post subject: |
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checked thru - also a problem
74hc05 died? |
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midi2
Joined: 22 Aug 2020 Posts: 16
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Posted: Sat Dec 03, 2022 2:40 pm Post subject: |
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I was told how to measure the midi signals themselves
this is Yamaha PSR, also 3.3V
Thiы is my buggy triton studio
As far as I see, the amplitude of the pulses is smaller and the signal fronts are rounded. Looks like a hardware problem |
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midi2
Joined: 22 Aug 2020 Posts: 16
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Posted: Mon Dec 05, 2022 4:32 pm Post subject: |
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The original piece of the input, output and tru midi scheme in the classic triton was powered by 5V.
This piece of the scheme migrated to the triton studio unchanged, but was already powered by 3.3V
that is, it is a problem of Korg design
as a result - lack of current in the circuit
replacing R15, R17 resistors with 20 ohms helped solve the problem
now all midi interfaces see messages from triton studio without exception |
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bpoodoo Senior Member
Joined: 27 Dec 2019 Posts: 429 Location: Ding Dong, TX
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Posted: Mon Dec 05, 2022 7:12 pm Post subject: |
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Good job of diagnosing and fixing the problem! _________________ bpoodoo
Triton Extreme 88 w/MOSS
"We all move on, like centuries and doves." |
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