What was found
ATB - ON CLIMB OUT LOST CAPT'S EHSI SCREEN, ALT SELECTED STILL NO SCREEN. APPROX 2 MINUTES LATER CAPT LOST EADI THEN UPPER EICAS SCREEN. AFTER 30 SECONDS, BOTH CAPT AND F/O SMELLED ELECTRICAL BURNING. FOUND SLIGHT WATER CONDENSATION ON CAPTS EHSI. R & R SAME IND IAW AMM 34-22-04-4. OPS CK OK. ALSO, OPS CHECKED EICAS DISPLAYS IAW AMM 31-41-01-4.