Yep, just go thru each pin on the IC, and meter onto the pin either side of it, and work your way along the whole I.C.
The short may be on the 'other' end of the resistor(s) away from the I.C end, so you might also meter between resistors too.
MM.
Will do.
MM if you get time, are you able to look at the schematics for U16 (LM339) and see if you can decipher what goes to what. I've found the earth pin - easy but the others seem very confusing.
Thanks
