[sdiy] Weird JX3P midi behavior

[Travis Thatcher]

Hi Florian,

I finally got back home and opened up my JX3P for further testing.  I
tried all functions without the programmer hooked up and all worked,
as well a switches/led's. Every panel seemed accessible. I checked to
see if the switch was working by trying to write to the seq (it only
works in the appropriate programmer mode). I also put an led on the RX
test pin on the main board, with a current limiting resistor going to
+5v. When I sent midi input into the jx the led lit up so it appears
the opto coupler is functioning as it should. Again, when not switched
to midi position the LED did not light.  Midi Thru does work.

I did another test looking at the midi output of the jx in midi mode
using MIDI Monitor. Here is what the output was when one note was
pressed (first line of output generated) then released

15:36:25.754	From MIDI Port	Note On	1	D4	1
15:36:25.802	From MIDI Port	Note On	1	D4	1
15:36:25.803	From MIDI Port	Stop		
15:36:25.804	From MIDI Port	Invalid		1 bytes
15:36:25.804	From MIDI Port	Clock		

Any ideas on what to check next?
T

On Thu, Nov 8, 2012 at 10:15 AM, Florian Anwander
<fanwander at mnet-online.de> wrote:
> Hello Travis
>
>
>> 1. Midi out - note on events are only firing when you let up a key. No
>> note off events are happening and nothing happens when you depress a
>> key, only when you let off.
>
> Hmm, do the switches and LEDs on the panel work, as they should? Can you
> edit every parameter from the panel? (disconnect the programmer for this
> test!).
>
>
>
>> 2. Midi in - not responding at all to midi input
>
> Memory protect switch in the wrong position or broken.
>
> Florian
>
> --
> http://fa.utfs.org/



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