What was found
ON TAKEOFF ROLL JUST BELOW V1, RED MASTER WARNING ILLUMINATED WITH RED NO TAKEOFF EICAS MESSAGE. AFTER ABORTING T/O AND EXITING RUNWAY, NO ABNORMALITIES NOTED ON T/O PAGE, OR ANYWHERE ELSE. FOUND STAB TRIM OUT OF T/O ARC LIMITS. SET STAB TO WITHIN T/O LIMITS AND OP'S CHECK GOOD. CHECKED NO T/O SYSTEMS IAW 750 MM 31-52-00, OP'S CHECK GOOD.