Radias knob/pot replacements (jittering values) wiring diags

qayqaywsx · Post by **qayqaywsx** » Tue Sep 08, 2009 8:58 pm

Hello everyone,
i know that there are many threads out about knob issues on R3/Radias instruments. So sorry to bother you again

Because i don't have any bill of my second hand Radias, i want to repair it myself. EG1 int and CutOff2 is jittering and it's not possible to reach all values.
I opened up my Radias an measured out that the potentiometers are defect. (from behind the front panel)

Has anyone technical description of these pots? are they all the same resitance ? I don't want to disassembe it completely before i got spares. (too much parts to loose

)

Thanks for any help and information
best regards
Max

juxsta · Post by **juxsta** » Tue Sep 08, 2009 11:00 pm

Well because it is just two pots you're having issues with, have you tried a can of DeOxit? You may just have a couple of dirty pots on your board....

http://www.guitarcenter.com/CAIG-DeoxIT ... 1134930.gc

McHale · Post by **McHale** » Wed Sep 09, 2009 1:13 am

I believe there's a test mode when you can test all your pots and LED's and stuff. I'd be curious how they tested out...

-Mc

qayqaywsx · Post by **qayqaywsx** » Thu Sep 10, 2009 5:05 pm

Thanks for you answers.
As i'm a solder freak i tested contact spray first.

I didn't find any test mode in the radias. At least i'm sure the pots are oxidized too much. But if anyone cann tell me where's the testmode, i would be thankfull.

Perhaps someone gives me the right part numbers for the pots ?

thanks Max