TK.

Really great job done by Kurt! He wrote:

voti.nl now offers 10k linear sliders. Order code: R-SLIDER-10k They are cheap! (EUR 1.10) Quality is ok for this price (I received and tested some samples) - not sure about the long-term stability, users: please write down your experiences Best Reagrds, Thorsten.

In order to avoid such a server desaster which happened during my last holidays, there are now two additional guys who will help me on the administration of midibox.org in future. These are (applause!) o SmashTV (Forum administration) o Twin-X (Server administration) Best Regards, Thorsten.

Hi, I guess that you mean the DB50XG card from Yamaha, this was a nice XG synth with some extra gimmicks, like a QS300 mode (gives you access to a huge sound library). I built a MIDI + PSU extension cable for this card some years ago, based on schematics from the Elektor magazine. This extension allows me to use the card without PC. I'm not able to find the (simple schematic) in the net, but this page gives the required informations: http://www.pan.no/ymahauk/html/xg_faq.htm Pin out assignments for DB50XG/conforming to waveblaster specifications: * 24 - left out * 20 - right out * 1,3,5,7,9,11 - digital ground * 15,17,19,21,23,25 - analog ground * 6,10,14 - +5v * 18 - +12v * 22 - -12v * 4 - midi in * 8 - midi out [/code] So, you need a PSU which delivers +5V and +/- 12V There are a lot of ground pins, two audio outputs and finally the MIDI In/Out pair, which can be handled like the MIDI In/Out of the MBHP_CORE module (6N138 optocoupler circuit at MIDI In) Best Regards, Thorsten.

I removed all references to the CNY17 from my website because of the bad experiences with this optocoupler. It doesn't work together with all MIDI interfaces Best Regards, Thorsten.

Great! :) Best Regards, Thorsten.

I agree with SounDuke. The shorts you noticed could be the reason why the whole circuit is not working anymore, because they could have damaged the transistors (or not...) - it's hard to find this out, especially when you don't know that the module plays together with your PC and windows installation. You could either build a less error-prone programmer like MBHP_BURNER (btw.: I will hide the JDM page as soon as the PCB is ready, because people still ignore the warnings) --- or you could ask somebody from the forum to burn your PICs (for free!) Best Regards, Thorsten.

thats the same connector I had for my first headphones - the advantage was, that I was able to use it for stereo in one direction, and for mono (both channels connected together) in the other direction. Best Regards, Thorsten.

I still don't get the point. Could you please write down exactly the button assignments for which you are searching for? Best Regards, Thorsten.

Are you sure, that your host software doesn't provide such a transpose function? With a Logic Environment this wouldn't be a big problem. If not, you could use either another host, or a plug-in-able (sorry for the strange word ;-)) host like EnergyXT, which provides such functions http://www.xt-hq.com/ Best Regards, Thorsten.

Interesting - this confirms again, that JDM troubles are mostly related to the PC or software environment. It's a big advantage to have a lot of friends (with a lot of different PCs ;-) Best Regards, Thorsten.

You could use the same connectors, but don't do it - the risk that you or somebody else mixes the two connectors and destroys your MIDIbox or any other MIDI gear is too high. Instead just use an alternative format for the PSU plug/socket - there are different DIN formats available, and they cost exactly the same price like a MIDI plug/socket pair Best Regards, Thorsten.

Thats very unlikely - 1) because the flash programming mode is an independent mode which works regardless of the flash content (only exception: if the programming protection has been activated - but it will be deactivated when you erase the whole flash via IC-Prog) (*), and 2) because MIOS and the BSL erases automatically each 64byte sector before it should be programmed. If it wouldn't do this, it wouldn't cause any damage. The effect would be, that old 0s cannot be turned into 1s, MIOS would report an verify error They only reason I know, why a particular PIC cannot be burned is, that the 10k pull-down at RB5 is missing, because this is a random effect (sometimes it works without this resistor, sometimes not...) Best Regards, Thorsten. (*) Sidenote to avoid wrong assumptions: MIOS doesn't modify the protection, and it's very unlikely that this is done by a programming error due to a specia unlock sequence which is required to access the configuration sector

This is the nice looking MIDIbox64 of Greg, he wrote:

Maybe I just don't understand your idea... but... what is the advantage? If a button function of the second layer should always be available, why you don't specify it in all layers at the same position (=pin)? Best Regards, Thorsten.

Maybe it would help to know, which changes you are doing exactly. Are you able to build the original release without any modification? Best Regards, Thorsten.

Previous posting splitted to: http://www.midibox.org/forum/index.php?topic=5543.0 Best Regards, Thorsten.

It is - $10 + taxes + shipping is a fair price compared to the effort which is required to build a discrete filter Yes, it's just the TB303 mode - not the typical TB303 sound. In fact I wasn't able yet to realize the same filter behaviour like on my moog-filter yet, I think that I have to optimize the OP stage at the end of the DAC, or the voltage divider at the CEM3378 filter CV input in order to fix this. However, the filter gave me some enjoyable hours today, it already makes a lot of fun to play with this toy :) Fx processor: there was a guy who realized a DSP project for such jobs, search for "miss parker" in the forum On the other hand: I prefer the use of VST plugins. The usage is simple and more flexible. Best Regards, Thorsten.

Great that it is finally working :) I will answer both questions at the same time: the best PSU solution is the one which is documented in this schematic http://www.ucapps.de/mbhp/mbhp_4xsid_c64_psu_optimized.pdf - it's exactly the circuit that I'm using, and my MBSID is stuffed with 2x8580 and 2x6581 - the same like yours This PSU should also be sufficient to power the PLED display Best Regards, Thorsten.

This posting contains the same content like "type c part list", which one should be removed? Edit: since Kokoon already replied to this posting, I deleted the other one

Please let us know if your MBHP_BURNER is working (Mike currently creates a PCB, I want to get a feeling about the "success level" before the first release) Best Regards, Thorsten.

I'm not a windows expert, and this issue seems to be software related. Did anybody else noticed that ICprog crashes? Best Regards, Thorsten.

I don't think that this is a problem with the core - is this correct: you are getting random MIDI messages even when all analog inputs are tied to ground? Then I would assume, that you forgot the 10k pull-up resistor R9 at pin RD1 Check also, if the 1k pull-up resistor R2 at pin RA4 is connected properly Best Regards, Thorsten.

It definitely makes sense to deactivate all drivers which are using the COM port. And as Raphael mentioned, it makes sense to follow the tips of the JDM page - what are the results of the voltage checks? Best Regards, Thorsten.

Nachdem ich zweimal zum Conrad radeln musste, da diverse Bauteile fehlten (besorgt Euch einen 7905 !), konnte ich den CEM3378 heute in Betrieb nehmen - Report hier: http://www.midibox.org/forum/index.php?topic=5538.0 Gruss, Thorsten.