Electrolux T4900 - Control System Operation

31
Control
Service
manual
Contents
SelectaIIPrintedcircuitboard. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Controllocations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
SlidingDoortroubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
ReplacementofSelectaIIPCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Programming. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Circuit boards MUST be protected
from static electricity!
 Remember!
•Alwaysuseanearthedwriststrap.
•Withouttheantistaticwrapping,theboardisunprotected.
•Keepallitemsthatcancausestaticdischarge(suchasplasticbags,
fabric,andthelike)awayfromthecircuitboard.
•Itemslikeplastic,foamplastic,nylon,orcellophanewrappingareallbig
generatorsofstaticelectricity.
•Staticelectricitycannotbefelt,heardorseentillthevoltagereaches
2500V.
•Boardcomponentscanbedamagedbystaticelectricityunder100V.