What was found
APPROX 5 MINS AFTER TAKEOFF UNDER NORMAL CONDITIIONS. PFD1 CAPT SIDE BEGAN SHOWING RED X OVER ALL INDICATORS, ALL INSTRUMENTATION ON PFD1 BEGAN BLINKING, THEN CAS MESSAGES FOR MULTIPLE ERRORS WERE DISPLAYED, SCREENS AT NO TIME WENT DARK OR BLACK OR SHUT OFF. WITHIN APPROX 1 MIN THE PFD1 BEGAN SHOWING CAS MESSAGES THAT WERE BECOMING ALARMING, FIRE DETECT/CHIP DETECT/TRANSPONDER FAIL/ETM EXCEED.DURING THESE EVENTS THE CREW INTIALLY ASKED ATC TO MAINTAIN PRESENT HEADING OF ABOUT 070 AND ALTITUDE OF 3,000 FT. TO ATTEMPT TO DETERMINE THE ISSUE. AT NO TIME WAS THE AIRCRAFT OBSERVED TO BE SUFFERING FROM ANY OF THE ERROR MESSAGES OF THE G1000. THERE WERE NO UNUSUAL SMELLS, SOUNDS OR ANY INDICATION THAT THE AIRCRAFT WAS HAVING ANY SORT OF OTHER MECHANICAL ISSUES. POWER SETTINGS AND ITT/NG/PROP WERE ALL IN THE GREEN. DFW APPROACH WAS THEN ASKED FOR AN EXPEDITED RETURN TO DFW WHICH THEY VECTORED US IMMEDIATLY FOR RUNWAY 17L DFW AND CLEARED US FOR THE VISUAL FOR 17L. THEY ASKED THE NATURE OF THE ISSUE AND WERE ADVISED FOR INSTRUMENT TECHNICAL ISSUES. WE THEN STARTED TO HEAR THEM SAY TO OTHER AIRCRAFT THAT THEY WERE DEALING WITH AN EMERGENCY AIRCRAFT AND WE WERE THEN TOLD TO CONTACT TOWER ON 135.700 AT NO TIME DID FDY411 DECLARE AN EMERGENCY OR REQUEST SUCH SVCS.