Re: One very bright unresponsive row on Peggy 2

Home Evil Mad Scientist Forums LED Matrix Kits One very bright unresponsive row on Peggy 2 Re: One very bright unresponsive row on Peggy 2

#20723
patholoraptor
Participant

Almost done, and I have confirmed the above behavior–all LEDs work, the sketches run as they should, but Row 1 LEDs light when any LED from the same column is lit.  Row 1 is very bright compared to the others.  Checked transistor Q1, and I see nothing visibly wrong with it.  Checked the soldering on U2 and it looks OK.  Could I have a damaged transistor, or should I look elsewhere?  Thanks!