OpenSprinkler › Forums › Hardware Questions › DIY Kit Assembly Questions › new 1.42u build issues › Re: Re: new 1.42u build issues
June 1, 2013 at 1:39 pm
#23740
Ray
Keymaster
2.5V Vcc means the MCP1702-33 linear regulator is probably damaged. You will have to replace it.
Also, was the 4.97V measured when it’s powered by USB or 24VAC? If by USB, there might still be a problem in your 24VAC -> 5V conversion (i.e. the switching regulator section) that caused the damage in the first place.