View Single Post
Old 03-03-2009, 06:32 PM   #7 (permalink)
EcoModding Lurker
Join Date: Aug 2008
Location: GTA
Posts: 17
Thanks: 0
Thanked 0 Times in 0 Posts
Originally Posted by myplasticegg View Post
It was VERY warm when it was acting up.
It would help to know what was warm.
  • If the regulator is getting warm, you've got a short to ground somewhere.
  • If the ATmega168 is getting warm, you've got current running through the rail clamp diode arrays.
    • Check that none of the inputs drop below ground and add a diode if they do!
    • Check that the two Zener diodes are soldered correctly and in the correct orientation
    • measure the input at each terminal and look for voltages above 5.1v or below ground
  Reply With Quote