As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON INITIAL DESCENT, PILOT SMELLED SMOKE IN THE COCKPIT, CHECKED ANNUNCIATOR PANEL AND FOUND EVIDENCE OF SMOKE. PROCEEDED WITH QUICK REFERENCE HANDBOOK PROCEDURE AND DECLARED AN EMERGENCY. TURNED RADAR OFF, SMOKE APPEARED TO STOP. LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE FOUND POWER SUPPLY PC BOARD WITHIN RADAR INDICATING UNIT BURNED. R & R RADAR INDICATING UNIT, OPS CHECKED GOOD.