sammichsid sudden encoder problem

[henrikgo]

I finished my sammichSID the other day and everything was working fine, then yesterday when I powered it up the encoder was going bananas! It jumped between steps a lot, one encoder click would jump 2-20 values and when I tried to decrease values it increased them instead etc. I find it really strange that the encoder started to freak out without any reason?

I will try to resolder the encoder today and hope for the best, is there any other place I should check? Otherwise I guess I have to change the encoder, but still, I find it strange that a encoder dies after ~5 hours use!

[Wilba]

Check the encoder pins are not touching the heatsink.

A poor solder joint might fail after five hours, or anytime after soldering.

[henrikgo]

Nah, it's not touching the heatsink but I'll check my joints, where should I check except on the encoder?

[Wilba]

The 74HC165 on the right, including the resistor networks next to it. You can follow the traces on the top side to where they connect to the IC.