tob Posted September 26, 2011 Report Share Posted September 26, 2011 I reversed the polarity on the core module directly to the J2 pins. Where do I start to troubleshoot, what componets do you think are dead. I had every IC in pic and Optocoupler and also a display. What parts do you think is borken: resitorscapacitorselectrolytic capacitorsPIC18F4685Optocoupler 6N138 DiodeTrimPot CrystalPCB?LCD The volatge was correct but polarity wrong. Now I got some strange chars on the display. http://imageshack.us/clip/my-videos/534/hqg.mp4/ Where do I start? Quote Link to comment Share on other sites More sharing options...
sparx Posted September 26, 2011 Report Share Posted September 26, 2011 First of all, replace the PIC. You could try burning the bootloader in, but it could possibly be dead. When you have a working PIC installed, try uploading code again. This will indicate if the opto has failed too. Are any of the electroltyic capacitors bulging? If they are, replace them, if not, you might be in luck. Good luck! Quote Link to comment Share on other sites More sharing options...
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