What was found
DIVERSION/DECLARED EMERGENCY--------------------------------------------------------IN CRUISE AT FL 380, NOTICED SMOKE COMING FROM CAPTAIN'S TRIP IDENTIFICATION COUNTER. FOLLOWED SMOKE, FIRE, FUME CHECKLIST AND TURNED MAIN PANEL LIGHTING KNOB TO OFF. SMOKE DISSIPATED BUT ELECTRICAL ODOR IS STILL PRESENT. ODOR DISSIPATED AFTER ARRIVING AT GATE. / PERFORMED FIM TASK 21-00 TASK 806 FOUND CAPTAIN'S TRIP IDENTIFICATION COUNTER AT FAULT. R&R CAPTAIN'S TRIP COUNTER PER AMM.