Korg Poly800/EX800 Users

You have to set the Program Enable switch on the back to Enable. If it's set to disable then the patch data in the dump will be ignored.

The same applies to the sequencer data in the dump. If the sequencer enable switch is set to disable then the EX800 will ignore the sequencer data.

It was done that way so that you could load up patch data but not sequencer data or load sequencer data but not patch data or load them both.

mike




________________________________
 From: benoitdmx <benoit.bouchez@...>
To: korgpolyex@yahoogroups.com 
Sent: Tuesday, March 5, 2013 9:10 AM
Subject: [korgpolyex] Unable to send a SYSEX to EX800
 

  
Hello all,

I am facing a strange problem with my EX800. I have the SYX file for factory (and also some SYX files I made after sending a dump request to the EX800 - note that it is a non-modded one, still original hardware)

When I send the SYX file to the EX800, the synth clearly receives it (the display goes blank while it receives the MIDI data). I get no message back from the EX800 then (it seems correct because if I change the checksum, the EX800 reports a dump error after receiving the file)

Here is what I see : if I edit a parameter (let's say param 18, set to 2 originally) and I reload the SYX file, the EX800 is clearly ignoring the SYSEX. The data I see in the changed parameters are still the same than BEFORE uploading the SYX file. It looks like the synth is ignoring simply the valid SYSEX data. If I reload the data from cassette interface, it works (the parameters I have changed are restored to original value)

Is there something special to send to the synth *before* sending the data dump (to tell him "I will now send you the RAM dump") ?

I am working on this problem since 2 weeks, and I am simply getting crazy. I can't understand why the EX800 does not take into account the SYX data he has just sent before

Is there a change between a dump going to the synth and a dump coming from the synth ?

Thank you by advance for your help

Benoit