. OPERATION DETAILED CONTROLS AND GAUGES If Any Abnormality Occurs During Operation 3 - 7 If an y abnormality occurs during operation, the standard scre en BB changes to warnin g screen FF-(1) or the error scre en EE. After displaying w arning screen FF-(1) f or 2 se cond s, the scr een automatically change s to w arning scree n FF-(2).