Bourns Rotary Encoder Cycle / Detent question

[ilmenator]

Hi all,

I need to replace a rotary encoder in one of my units (Emu Esi-32). Apparently, the one that was in there had a detention scheme as shown on the left hand picture - the one I have here for replacement has the right-hand detention scheme.

As a result, when I use the new encoder the entered values are incremented in jumps of 4.

What's the easiest way of making my encoder work as it is supposed to? Is there any IC that does this job readily (counter/comparator maybe?), or should I use one of those small PICs to convert the data? Any suggestions are welcome!

Thanks, ilmenator

[Screaming_Rabbit]

Just remove the detend and your problem is solved.

Greets, Roger

[ilmenator]

Unfortunately not - the encoders cannot be opened, their plastic housing is "welded" together. I am afraid of breaking the encoder upon opening it up. It is not the heavy duty type of thing.

Any ideas going into a more IC / electronic direction?

Best regards, ilmenator

[lylehaze]

I could see using a flip-flop on each signal to divide its frequency by two. But you'd need to do each twice for divide by four, then there is the question of whether it would stay syncronized after a power cycle?

A small PIC is looking better all the time.

Too bad it's not going into a MIDIBox, that would make the change much easier to manage. But you knew that already.

Good Luck,

Lyle

[stryd_one]

If I were you I'd spend the time to find a more appropriate spare part :)