If you have a technician account with the OEM (Original Equipment Manufacturer).
Tracking 12V DC input conversion down to 5V, 3.3V, 1.1V, and 1.8V rails powering the central SoC (System on Chip), RAM modules, and analog-to-digital video decoders. ds80249 p rev 12 schematic link
Connect an RS232 terminal connector to pins on the board's serial port interface to view the live boot log. If you have a technician account with the
: Revision 12 may swap older integrated circuits for more efficient versions, which is critical for troubleshooting voltage rails. ds80249 p rev 12 schematic link