Moog Rogue Key Off Pitch Problem

[tonezone020]

Hi All,

My Rogue has a key off pitch problem - originally the note, after key off would keep descending ... In Bypass mode, it keeps going - until it's beyond the audio freq limits...

I replaced U1 (TL072) trying both a TL072 and NJM072.

The key off problem persists - this time it's ascending although at a significantly slower pace . The note is normal when held. It's only after release the problem kicks in...

Could C4 be the problem ?

Any pointers gratefully appreciated.

Thanks - Tony

[tonezone020]

Hi again - would a standard 100 pf 5% axial capacitor be suitable for C4 on the Rogue ?

[tonezone020]

Turned out it was a dry joint on the 12v pin at the bender connection !

[zeeb]

Hey Tony -- I found your post about the Rogue pitch issue - not sure if you're still connected to the forum, but am asking & reviving if you, or anyone can help... I recently had the same problem on my Rogue - any sustained note raises in pitch... and keeps going(!) wondering if you, or any others could clarify your fix?

"...Turned out it was a dry joint on the 12v pin at the bender connection !..."

I'm guessing the 'bender connection' is at the pitch wheel, correct? I've not opened synth yet - just wanted to clarify what I'd be looking for (wire color?) to re-solder the connection....

Thanks for any help in adv.

Cheers J.