I changed all theese condensers and both outputs are O.K. and loud now. Hi and thanks for letting us know. Hmm thats strange, I guess I am missing sth here. Both prophecies that I have owned were definitely not loud, they needed more than the usual gain compensation to stand in the mix with other s...

Hi and welcome to the board. It looks like the unit freezes during boot. I have seen this before and the culprit was either the ribbon cable or a bad Ram IC. You can try this , but I doubt that it will work: How can the Supernova/SuperNova II be completely reset? To restore the operating system of a...

iowagold wrote: ↑

Sun Oct 27, 2019 3:18 pm

any parts lists or schematics for the korg radias 49 keybed?
I have one for the radias rack.
I just need the one for the keybed with a parts list.

here it is :
https://filebin.net/bu0fnmkjcc4qk9tm/RA ... t=lz3eik69
Password is &radiaskb

I am glad I could help ! Enjoy your M1 !

Hi Rasputin,
this is so sad, there is so much useful information on yahoo groups.
How can we help ?

Hi and welcome to the forum. Sorry I havent seen an SC-33 in real life, but from personal experience there are a few causes that can render an LCD unreadable : 1) faded backlight. 2) Lcd not making proper contact with pcb 3) faded LCD About 1) , usually you can replace the led that lights up the bac...

If you could post a picture , it would be easier for me to understand whats going on.
The glue that is used to hold components in place, sometimes gets corrosive and destroys surrounding parts.
Did you check the voltages on the power supply ? (+12V/-12V/5V )
Good luck !

Hi WORKSOP and welcome to the forum.
I cant see the photo that you have posted , so I cant help much.
The L4 is an inductor (coil) and when coils fail they dont produce corrosion , they are either "open" or partially shorted.
Have you done a factory reset after the battery replacement ?

Hi Lukas, unfortunately the list that you have provided does not help. The burned resistor should be R44 = 100 Ohm, but I am not quite sure because all the service manuals that i could find were unreadable at this section. Also , resistors do not burn by themselves , there is sth else triggering thi...

here is what sduck posted on Reddit a few days ago : What's happened is the site went down because the bill wasn't paid in time. While it was down, for something like 4 hours, dreamhost somehow mucked something up in the file system. When it didn't come back up, we had them do a restore, and that di...

Roland XP-50.
Surface mount electrolyte caps leak , corroding pcb tracks on their way.
Classic symptoms: No Display, no output, battery low 0V.
I have one in front of me, I have replaced all electrolytes, jumpered 2 pcb tracks and it still does not work.

It is not a synth module , it is a custom midi system made by YES Audio or Alyseum, as pflosi points out in his post here:
viewtopic.php?t=93166

I think that they use graphite for making contact because if they have used copper, the keys could cause double triggering. In the past I have used caikote 44 which is very conductive , and I experienced the double triggering problem. Anyways, i am glad you did not follow my advice and got it sorted...

It is quite a fiddly job but I am quite sure it will work.

Let us know how it goes , good luck man!

hi Mooger5, I am no expert and I have never laid my hands on a dx100 but I have been in similar situation with many keyboards. Judging from personal experience, it is the graphite on the pcb contacts that is worn out. I dont like spraying graphite directly to contacts , usually i spray on a piece of...