What was found
AIRCRAFT WAS GROUNDED: IMMEDIATELY AFTER TAKE OFF AND THOUGHT THE REMINDER OF THE CAPTAINS SIDE NAV DISPLAY AND PRIMARY FLIGHT DISPLAY WOULD JUMP. OR SHAKE LEFT AND RIGHT WHILE IN A RUN MOVEMENT WAS ABOUT 1/2 TO 1 INCH EACH DIRECTION EMANATING FROM AIRCRAFT SYMBOL WHICH REMAINED STATIONARY, OUT TO THE HEADING BUG AND HEADING SYMBOL AS WELL AS THE TRACK LINE AND THE IMAGES THAT WERE DISPLAYED ON THE NAV MAP. ALL OTHER INDICATIONS ON THE NAV DISPLAY LIKE WX RADAR INFO RND-ANP, TRK MAG , GS GROUND SPEED, TAS RANGE WAY POINT INFOR REMAIND STATIONARY. THE LARGEST MOVEMENT WAS NOTICEABLE THE FURTHER TO THE TOP OF THE DISPLAY THINGS WERE DISPLAYED ONE IN LEVEL FLIGHT. THERE WAS STILL SLIGHT MOVEMENT OF THE MAP ON THE CAPTAINS SIDE. REGARDING THE SAME RELATED ISSUE ON THE CAPTAINS FLIGHT DISPLAY THE COURSE LINE ON THE COMPASS/ ROSE WOULD ALSO JUMP LEFT AND RIGHT WHILE IN A TURN, AS WELL AS THE LFIGHT PATH VECTOR (FPV) SYMBOL. THE FPV WAS DISPLACING LEFT AND RIGHT ABOUT 1/4 TO 1/2 INCHES PRIMARILY WHILE IN A TURN. SLIGHT MOVEMENT LEFT AND RIGHT DURING WINGS LEVEL FLIGHT ALSO OCCURRED BUT IT WAS BARELY NOTICEABLE NO OTHER COCKPIT INDICATIONS WERE IN A TURN SLIGHT MOVEMENT LEFT AND RIGHT DURING WING LEVEL FLIGHT ALSO OCCURRED BUT IT WAS BARELY NOTICEABLE. NO OTHER COCKPIT INDICATIONS WERE PRESENT. ALERTS OR MESSAGES WERE DISPLAYED. REMOVED AND REPLACED DPC-1 CPN IAW AAMM 31-65-02.OPS CK OK. SUPPLEMENTAL INFORMATION: NO INFORMATION (SUPPLEMENTAL CLOSED)