The 4558 is IC3, so these outputs are good then. The -1V output doesn't change if I press some keys, it stays at -1V. On pin 26 I got 11.96V on pin 28 -12.16V...
If the 4558 was IC3 then it buffers the aftertouch on A (0-5v)and the pitch bend on B at 2.5v. The Dac used is a PCM54HP. Pin-19 (VD) and pin-20 (PR) are...
Hi Alan, I do have an old Philips scope and a decent DMM with scope function (don't know how to use a scope yet, but at least it is there), so that schouldn't...
In 'LogicLand' there are some weird old tricks, some work and some don't. For example, use a 74HC4040 (a 12 step divider, not a 12-step program) to divide...
Frank, This is where you get out of troubleshooting ability, by not having test gear like DMMs and scopes, for measurement and analysis. A scope is required to...
Hallo Marco, I have checked it right away. Local setting is on, the DX is initialized so every setting should be ok. The sounds if have loaded through floppy...
Have you put back the sounds via sysex. And put the setting local on? Have you tried to use an external keyboard ro get sound out of the yamaha? Grtn, Marco ...
Hello, my DX is driving me crazy. First I had the problem with a broken power supply. I did get many tips from this group (everyone a big thanks for that!) but...
I have the same version on my dx100. Â V1.6 10Oct85 on my Dx21. Â By the way - my welcome message seemed to get reset even when saying NO - anyone recall how...
The revision dates are good markers for the FM synthesizer timeline. If you're the owner of a DX21/27/100, would you like to check yours? Press and hold down...
Hello, I am not sure about 6 operator DX, but my experience with 4 op family might help (i have developped an editor for the Dx 11,21,27,100 & Tx81z...
no , thanks , doesn't help , i am writing my own , but having many problems charles ... From: Renata Dokmanovic To: YamahaDX@yahoogroups.com Sent: Sunday,...
yes i know this allready , what i want to do is decipher the 128 bytes into parameters for output or input tr4ans form into a single voice dump to/from a dx7 ...
The 32 voice DX7 sysex format consists of a six byte header (F0 43 00 09 20 00 h) + (128 packed bytes for each voice X 32) + checksum byte + end byte (F7h) =...
i been doing alot of sys ex stuff and now i am on to my dx/tx816 i was wondering how the full banks are "knit" into the sys excluisive message...is there any...
Hi, I have a template for Mackie Control C4, if that can be of an interest to you. http://mapage.noos.fr/michael.rosner/C4DESIGN/index.html Regards, Michael...
Hi, I looked in the files area but couldn't see the ROM image for a DX27 v1.2. I'm refurb-ing a v1.1 unit and would also like to upgrade yhe eprom while it's...
If it is a Grey Matter E! upgrade, it is noticed on the case of the DX7, I have a DX7IIFD with Grey Matter E! cheers, Marco fish2fish21227 schreef: There is...
There is currently an Ebay Listing a DX7IID that has the word "Plus" after the DX7IID. The seller (Technoempire) doesn't know if any additional features are...
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