What was found
DURING TAXI OUT, DETECTED AN ACID ODOR (CHEMICAL). RETURNED TO RAMP AND SMOKE DETECTED COMING FROM CENTER CONSOLE BETWEEN RADAR AND ECAM PANEL. FIRE DEPT DETECTED A VERY SMALL HOT SPOT ON RADOME. DISPLACED ECAM CONTROL PANEL AND BOTH IDC'S, INSPECTED WIRE HARNESSES IN CTR CONSOLE AND BELOW WITH NO FINDINGS. POWERED ACFT UP AND RECIEVED INSTANT SMOKE FROM ECAM CTRL PANEL SGU SWITCHES, FOUND STRONG ODOR FROM CTRL PANEL WHILE IDC'S SMELLED CLEAN. SECURED IDC'S. R & R ECAM CONTROL PANEL AND OPS OK IAW AMM 31-57-11-04, ALLOWED 30 MINUTES OF OPERATION WITH NO SMOKE OR ODOR BEFORE REMOVING POWER. SUSPECT HOT SPOT DETECTED BY FIRE DEPARTMENT TO BE WX RADAR ANTENNA.