Probably a faulty Encoder: Part number?

sonicwarrior

I finished my LXR now but during testing I found out that the Encoder on mine is not working properly:
It jumps between the current value and the +1 value back and forth when I use it. I can't set other values and getting the +1 value takes some time.

So my guess is that I have a faulty Encoder. I'm not sure how to test this other than trying a replacement. Btw. it's hard to desolder because it is so near to the MIDI jacks.

But what is the exact part number? The schematic says it's a Bourns PEC11 but that's a whole series. The PEC11R sub series looks similar (mounting) but only have metal shafts. The PEC12R series looks the same with plastic shafts. The assembly instructions say it has a switch plus 24 clickes plus a 25 mm shaft. It is obviously horizontally mounting with detents.

At Mouser it could be:
652-PEC11R-4225F-S24

or
652-PEC12R-4225F-S24

both unfortunately not in stock.

Are those the right ones?

julian

here is the BOM
https://docs.google.com/spreadsheet/ccc?key=0AgngFqfjdS0odDdqLUk3N0IxS19Xd0JRa01pVEpoNFE&gid=0&output=html

i used the ones from mouser
PEC12-4225F-S0024

Not sure if they are back in stock yet, had to get my last batch from another vendor (wholesale)
should i send you a replacement encoder?

Altitude

Get the 30mm PEC12 and cut it down to length (652-PEC12-4230FS0024).  The 25mm parts are not due till November so you will have to make due.. DONT get the 20mm ones, they wont work with the shrouded knobs like used in the LXR

sonicwarrior

Thanks guys. I'll take the offer from Julian.