What was found
DURING T/O ROLL, LOST ALL FLT GUID DISPLAY, NR 1 PFD F/D WITH FAIL LIGHTS .A/T KICKED OFF MACH TRIM, YAW DAMP AND WINDSHEAR INOP LIGHTS ILLUM ON AOP. NO C/BS POPPED, REJECTED T/O AT 120 KTS 35 DEG F, AT CVG 890MSL. MAX BRK TEMP OF 285, NO OVHT BRK LIGHT. REPLACED NR 1 DFGC, RAN RTS CKTS GOOD.