Hey list, I have a x0xb0x (303 clone) that I build from a kit in the mid-90s. I dug it out recently and started playing with it and noticed it has an odd LED issue - basically one of the LEDs doesn't light when it should, but if I unsolder the LED I'm seeing 5V across its pins at the right moment, and then it worked for a while when it was soldered via a pair of 10cm wires but stopped when I soldered it back onto the board. I don't really know what's wrong, I'm thinking there's noise or parasitic capacitance but I have no idea how to debug that. The LED's are driven by a bunch of chained 74HC595's. I took a look at what's going on with my cheap-ass USB logic analyzer (Saleae Logic) but it all looked fine. Would anyone be interested in helping me debug it? Thanks Damian -- damian stewart . digitaler fuzzi . vienna, austria http://damianstewart.com . twitter @damian0815