Service Manual

Table Of Contents
GEARS
TheSystematicapproachtodening,diagnosingandsolvingproblems.
GatherInformation
Informationreportedbythecustomer
Informationobservedbyyou
G
Establishthewhat,whereandwhenoftheissue
EvaluatePotentialCauses
Considerpossiblecausesoftheproblemtodevelopahypothesis
E
Narrowdownthefocusoftheproblem
AssessPerformance
Ensureyouhaveallthenecessarytoolsfortesting
T estallpotentialcausesofthefailure
A
Reevaluateandcreatenewhypothesesifnecessary
Repair
R
Returntheunittoservicebyrepairing,rebuildingorreplacing
SolutionConrmation
Didtheissuegoaway
Wastherootcauseoftheissuecorrectlyrepaired
S
Arethereanyothernewsymptoms
Troubleshooting:GeneralTroubleshooting
Page3–2
2000SeriesZMASTER®ServiceManual
3438-778RevA