I just received (10) of these from DigiKey. On all (10) R1 between pins 1 and 3 measure around 90K and R1 will not adjust at all when the shaft is rotated. On all (10) R2 between pins 1 and 3 measure between about 1K to 90K when the shaft is rotated as expected. It seems like R1 is not working at all.
Am I doing something wrong or is this a defect?
Thanks!
Welcome to the Technical Forum.The way I see it they should both be changing when you rotate the shaft. They very well could be defective. Unfortunately I can’t do anything with a defective part on the forum. You can contact customer service or do the online return request.
Handling Order Issues | DigiKey
You can wait and see if anyone else has any suggestions , but I can’t see why it would not adjust the same for R1 and R2.
Hi @mstough84 ,
Thank you for reaching DigiKey TechForum. Defects are typically very rare, therefore it may be worth double checking the pin out diagram.
Thanks! I did check the pinout diagram again with the same result. I will wait and see if anyone else makes any suggestions.
Pins designated 1 and 3 appear to be the fixed terminals for each potentiometer. Variation between these would not be expected as a consequence of shaft rotation.
Please check the measurements again, noting that the terminals may not be in the expected relative order.
