GE JK3800DH1BB Technical Service Manual

Also see for PT7800DH1BB: Installation instructions Owner's manual

Contents

GE JK3800DH1BB Technical Service Manual Manual pdf 50 page image

– 50 –High Voltage TransformerWARNING: Always be certain the capacitor isdischarged before servicing. (See the Capacitor andDiode section in this guide.) Mechanically dischargeby placing insulated pliers between the diodeconnection of the capacitor and the oven chassisground.NOTE: The capacitor has an internal dischargeresistor that automatically discharges the capacitorwhen the oven turns OFF. Under normal operation,the capacitor should fully discharge within 30seconds.The oven must be removed to access the highvoltage transformer. (See the Removing UpperOven section in this guide.) The high voltagetransformer is located behind the top access cover.The top access cover is held in place by two Phillipshead screws.The transformer is held in place with four Phillips-head screws. Two of the screws are recessed fromthe top of the outer cover. Access holes are provided.A magnetic screwdriver is necessary to capturethese screws.When disconnecting the primary and secondarywire connections, note the wire locations. The wireconnectors use releasing locking tabs.Check the high voltage transformer windings forapproximate resistance value between:Red to white SULPDU\ űRed/BlackWRFKDVVLVJURXQG VHFRQGDU\ ű0DJQHWURQKDUQHVV ¿ODPHQWKLJKYROWDJH űLeft and Right Door Switch AssembliesThe primary interlock, monitor interlock, anddoor sensing (secondary interlock) switches aremounted on plastic latch boards. The latch boardsare attached to the left and right side of the ovencavity. The left side latch board contains the doorsensing (secondary interlock) switch. The right sidelatch board contains the primary interlock and themonitor interlock switches.Right side Latch Board Shown(Continued next page)