开云体育

Hi, I just completed a build of the QCX-mini. When powering the device with either 7.5V or 12V battery I get ?LCD top row is blocks, bottom row is blank and nothing else. I have checked throughout for solder bridges and found none, I also checked for continuity with digital multi meter and found the IC2 (ATmega328P) to be connected ok with the ic socket and also with the board sockets with no bent pins and proper intal alingment. Also continuity is fine for the LCD. IC2 has clock on pin 10 of 4MHz (measured with logic probe), IC2 also has voltages on pins 2,3,4 and 5. I'm not sure how to fully test IC2 to see if all is good or what else I should look for in the circuit to spot the issue. Any help would be appreciated.