ACR WDB WITH EQUIPMENT PROBLEM DISTRACTED FLT AND RESULTED IN TRACK DEVIATION.

Narrative

ON THE DATE LISTED WE WERE DEPARTING ONT ENRTE TO SAN DIEGO; CA; ON A SCHEDULED AIRLINE FLT ON A WDB ACFT. WE WERE CLRED VIA THE PRADO DEP FROM RWY 26R; WHICH REQUIRES A CLB STRAIGHT AHEAD TO 2000' MSL; THEN A LEFT CLBING TURN TO PARADISE VOR. AFTER TKOF; I TURNED ACFT OVER TO MY F/O; AT ABOUT 1000' AGL (2000' MSL). I MADE TKOF BECAUSE I AM STILL A RESTR CAPT; IE; LESS THAN 100 HRS AS CAPT IN TYPE. SHORTLY AFTER HE TOOK CTL THE AUTOMATED FLT DATA DISPLAYS STARTED ACTING UP WITH LIGHTS FLASHING AND DISPLAYS CHANGING; AND WE BOTH THOUGHT WE HAD A SIGNIFICANT ELECTRICAL PROB. I TOLD HIM TO FLY STRAIGHT AHEAD (WE WERE VFR) AND LEVEL OFF AT 4000' MSL; OUR CLRED ALT; WHICH HE DID. I MOMENTARILY FORGOT WE WERE TO TURN LEFT OUT OF 2000' MSL. BY THE TIME I REALIZED THE PROB WAS COMPUTER AND NOT ELECTRICAL; I REALIZED WE WERE TOO FAR W AND FOR SAFETY; CALLED DEP CTL TO SEE IF WE WERE STILL SAFE FOR A LEFT TURN. THEY SAID YES; SO WE TURNED LEFT DIRECT TO PARADISE. THEY THEN CALLED TFC AHEAD AT AN UNKNOWN ALT. WE WERE LOOKING AND I REQUESTED UPDATES. THEY THEN CALLED TFC CLR; GAVE US FURTHER CLB INSTRUCTIONS AND A TELEPHONE # AND NAME TO CALL ON ARR AT SAN DIEGO. WE COPIED ALL; CLBED AND FLEW ON TO SAN DIEGO WITH NO FURTHER PROB. AT SAN DIEGO I MADE THE CALL TO THE DEP CTL SUPVR AND EXPLAINED ALL THE CIRCUMSTANCES AS TO WHY WE MADE THE LATE TURN. HE ASKED ME WHY WE DIDN'T RPT OUR PROBS. I TOLD HIM I WAS SO BUSY WATCHING FOR TFC; MONITORING OUR DEP; TRYING TO SORT OUT THE ELECTRICAL/ELECTRONIC PROBS; TALK ON THE RADIO; REALIZE MY ERROR; SAFELY CORRECT IT; WATCH FOR THE RPTED TFC; CLB; ETC; THAT BY THE TIME I WAS READY TO TELL THEM ABOUT OUR PROBS; THEY WERE ALREADY GIVING THE PHONE # AND I THOUGHT IT BETTER TO FLY AND SORT OUT THE PROB ON THE GND. A 2-M COCKPIT ON A SHORT LEG IN A WDB WITH ELECTRONIC PROBS IS TOO BUSY. SUPPLEMENTAL INFO FROM ACN 88728: PRADO DEP REQUIRES TURN DIRECT TO PDZ VORTAC; BUT SIGN ON TXWY REQUIRES 2000' MSL BEFORE TURNING; WHICH IS NOT ON DEP SID PLATE NOR IN ACFT NAV DATA BASE.