I would try a reset first.
>To initialize the Pulse:
> - keep the Mode Button pressed during power up
> - then hold the shift key down and select the Menu "InI" with the page buttons
> - by pressing [shift]+[Mode] the Pulse will be initialised
If that doesn't work try swapping the op amp chips from one socket to the other. They may be loose in the sockets or the symptoms will move with the chips.
---In vintagesynthrepair@yahoogroups.com, <kloopy@...> wrote:
Hi all,
My first post and glad to be here.
I have two Pulse synths with similar symptoms. One has envelope full open and it's not reacting to midi velocity, the other one is opposite, envelope is fully closed. This is both for VCA and VCF.
I suspect that one of five TL064CN op amps in charge of envelope is dead in both synths.
Anyone had experience with this and can you let me know which op amp could it be if you know the Pulse architecture?
Thank you!
Kruno