TRACK HDG DEV -- TURNED AT WRONG FIX ON STAR.

Narrative

FLT FROM ATL TO BDL. CLRNC WAS AFTER ROBBINSVILLE DIRECT TO DPK FOR THE DPK 2 ARR STAR AT FL270. AUTOPLT IN USE; AND COUPLED TO OMEGA. AT TOP OF DSCNT; REVERTED TO VOR/DME NAV. 60 NM FROM DPK GIVEN DSCNT TO 16000 FT MSL. COMMENCED DSCNT AT 40 NM FROM DPK AND DID DSCNT CHKLIST AT FL180. SLOWED TO CROSS DPK AT 250 KTS AND FL180 AS ASSIGNED. WENT INTO COMMERCIAL PUB FOR APCH PLATE TO REVIEW APCH. AT DPK; TURNED L TO INTERCEPT THE 341 DEG RADIAL OF DPK. STAR SHOWED 250 KTS; AND 341 DEG RADIAL AT MAD. DUE TO OVERLOAD AND LOST SITUATIONAL AWARENESS; I MADE THE CORRECT TURN AT THE WRONG VOR (DPK VICE MAD). ATC CTLR CALLED WHILE WE WERE IN THE TURN TO THE 341 DEG RADIAL AND ASKED FOR OUR HDG (APPROX 330 DEGS). HE THEN TOLD US TO LEVEL AT FL180 AND TURN TO A HDG OF 90 DEGS TO INTERCEPT THE DPK 053 DEG RADIAL TO REJOIN TO DPK 2 STAR. WE COMPLIED. PROBS WERE PLT UNFAMILIARITY WITH THE STAR; COMPRESSION OF WORKLOAD OVER DPK; DUE TO CHKLISTS; TURNS; DSCNTS; SPD REDUCTIONS; AND PNF BEING DISTRACTED FROM NORMAL BACKUP DUTIES BY ATTENDING TO A PAX PROB.