What was found
RIGHT AFTER TAKEOFF, F/O SIDE FAILURES WERE: NO DATA ON COMPASS ROSE, NO HEADING BUG ON PFD OR ND, NO LATERAL FLIGHT DIRECTOR, NO SPEED TREND VECTOR, ALSO TCAS FAIL ILLUMINATED. / REPLACED ISDU IAW AMM 34-21-02 AND ACCOMPLISHED FIM TASK 34-21 TASK 808. ALL CHECKS NORMAL. ISSUE #2711718. TCAS OPS CK NORMAL PER AMM 34-45-00 PN OFF/ON 69-73713-17 SN OFF D00620 SN ON F06658.