On Thu, Apr 21, 2011 at 8:18 PM, Spehro Pefhany wrote: > At 07:54 PM 4/21/2011, you wrote: > >On Thursday, April 21, 2011, Spehro Pefhany wrote: > > > Long shot, but compare appearance and markings of R130 to > > > R127, 129, 133, etc. > > > >What's the significance of this? > > Well, if the resistor R130 value was way off (incorrect part populated or > perhaps damaged) it could explain the symptoms you are observing. Hence I > suggest a visual inspection and/or sticking on ohmmeter across it (with > power off, of course). > > I guess your long shot was the solution. I first measured all the voltages on the pins using an oscilloscope and everything looked fine, including the voltage drops across each segment. Then I measured each of the resistor values using an ohm meter. R130 measured to be 2.2k, but it should be 100 ohms. Where to go from here? I have a "defective" board and it's under warranty. = I wouldn't mind a free board, so I'll go pester Digilent while I search for another 100 ohm resistor. Kinda makes me question what other "defects" my board came with... Anyway, I linked a picture of the resistors beside a ruler. What size are these resistors? As in, what size should I look for when looking for a replacement? Also, I doubt my local electronics store carries such small resistors anyway, so this is going to be a real pain in the ass. Picture: http://postimage.org/image/2dfsy9sn8/ Also, many thanks to Mr. Sean Breheny for the awesome oscilloscope. Made debugging this board a breeze. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .