OK so while it has some kind of issue doing a factory restore for some reason, I WAS able to get it working properly again by finding an actual stand alone sysex factory preset dump.. using sysex librarian I was able to push a full load of patches to it and display is great and instrument is making ...

Good thought for sure. I will see what I can dig up.. just interesting that it passes the ram inspection.. but somewhere else when data is getting accessed is not working right. thanks for the great suggestions!

i'll see what i can figure out. i'm not a trained electronics repair person. i have a local electronic repair guy I've had do numerous tasks for me but he's trained, but not in deep synth repair like this, so I'm trying to isolate where the issue is and then have him do the repair itself as I would ...

Yea reading the manual a bit, I can see that it does in fact pass the ram test without issue since that's THE first test they do. I made a second video showing some more stuff. https://youtu.be/UKdODFJo2VE I am using a roland UM-ONE mk2 midi cable that has sent / received sysex before and honestly g...

Hi everyone, I'm hoping to find some help fixing this almost working TX802. I recently replaced the eprom thinking this might explain why i was getting an error with a factory reset.. but sadly this didn't change anything.. I'm thinking bad ram would explain the funky characters in the patch names a...

Hi there, I have this synth that is in good shape physically. Even the screen has a nice backlight still. However it's general behavior seems off and i'm wondering if maybe the EPROM could be the cause. https://youtu.be/Zgur6XFLTiY I made this video to see if anyone could verify. i can say it does m...

yea figured they wouldn't be 1:1 was hoping the audio to midi part of it might be somehow outside of the rom itself and maybe be more like patches and such.. but that was a stretch.

Hi everyone, So I took a chance on an old vocalizer. I wasn't even sure what it was other than it had a mic that came with it, in relatively good shape and midi in / out.. I got it home and while it would play back some of the preset patterns and such, the instrument section produced no sounds when ...

Hi everyone, So I made a stupid move and snapped off the knob that goes up there. The good news is that it goes right back on and still rotates properly, however the "clicker" part of it no longer clicks. I haven't committed to glue it back on till I know there isn't something I can do to fix the cl...

fantastic. yea batteries for anything that old is a safe bet to replace.. even if it still works (it can happen) these systems slip power from these batteries. i've seen batteries hold a memory system with 0.2v rating on a 2032.. and be thankful they made it user replaceable unlike some that require...

i sold it awhile back but yea you just open it up and remove the chip like any old PC/Mac.. nothing too special was needed IIRC.. turn it on.. load up the sysex file.. see if there are any settings in the vintage keys to prepare it to receive but i don't think it really required a lot of preparation...

Thanks for this. I'm happy to report the unit turned out to not have a problem with the LED, but rather the LCD screen that just has some little black bloch on it.. doesn't even interfere with reading the screen but it's right in the middle. Glad to know though about the LED.. I do have a similar is...

Hi everyone, I am working on restoring a recently bought ART SGE Mach II. I had one of these years ago and wanted to have another and found it for a fair price.. but I'm hearing that some of the bars don't light up. I'd like to replace it with a new one. Admittedly I'm curious if they are in fact co...

very cool, yea a truly mono instrument might actually work ok.. but guitar with its multi tone ability was more than it could handle.. but that does may me wonder how it would track with a mono synth going through it.. i'll have to try it.

lol yes i noticed it was a very old post.. lol. you even still have yours?