TB8100 Service Manual Power Management Unit Fault Finding 221© Tait Electronics Limited September 200613.5 Board ReplacementReplacing FaultyBoards At certain stages during the fault finding procedure, you will be instructedto replace a particular circuit board. In these cases, go to the appropriatesection in “Power Management Unit Card and Board Replacement” onpage 259 and carry out the replacement procedures described there. Thefull procedure will normally involve:■ removing the faulty board■ fitting a new board■ carrying out the specified reprogramming and recalibration tasksusing the Calibration Kit■ carrying out the procedures described in “Final Tasks” onpage 247.Refer to “Power Management Unit Spare Parts” on page 267 for a fulldescription of the spares available for the PMU.Disposing of FaultyBoards and Modules We recommend that you dispose of faulty boards and modules according toyour local environmental and safety regulations. Otherwise, return them toyour nearest CSO for appropriate disposal.
