G-30-1426-en S88 Floor Stand with Lifting Column Issue 9.0Printed on 28. 01. 2009Maintenance / Further information 145Insufficient surgical field illu-mination.Brightness level set too low. Adjust brightness on sus-pension system's displayfield or using foot controlpanel.-Defective light guide (illumi-nation not uniform).Contact service dept.Light guide probably needsto be changed.-Lamp brightness cannot beadjusted.Manual function is acti-vated. (Yellow LED abovethe button is lit).Switch off manual function. -Motorized focusing andzoom functions of surgicalmicroscope are inoperative.Manual function is acti-vated. (Yellow LED abovethe button is lit).Switch off manual function. -Suspension arm is in hori-zontal position and cannotbe moved upwards or down-wards.Suspension arm still locked. Pull out locking device andturn through 180°.-In combination with threesuccessive beeps and dis-play of the error code (XXX).– Error message duringthe software check afterpower-on of the suspen-sion system.– Error message for an in-ternal system error.Manual operation is pos-sible.Contact service dept.,specify error code and serialno.-Stand wobbles. Floor not level. Stand basenot appropriately posi-tioned.Slightly turn stand base. Ar-ticulated arm should be po-sitioned at a right angle withtilt axis.Problem Possible cause Remedy SeeXXX