3-24
CONTINUITY TEST CHART
DOOR OPEN
L1
SECONDARY
INTERLOCK
SWITCH
PRIMARY
INTERLOCK
SWITCH
MONITOR
SWITCH
N
L1
SECONDARY
INTERLOCK
SWITCH
PRIMARY
INTERLOCK
SWITCH
MONITOR
SWITCH
N
DOOR CLOSED
PRIMARY, MONITOR, & SECONDARY SWITCH
CHECKOUT PROCEDURE
NOTE: The following chart and strip circuits show the continuity and position of the door switches
when the microwave oven door is open and closed.
SWITCH TESTING
DOOR
OPEN
DOOR
CLOSED
Primary
Interlock
Disconnect the 3-pin connector CN3 from the control
module. Check from the pink wire (pin 1) to the blue
wire (pin 3).
–+
Secondary
Interlock
Disconnect the wires at the Secondary Interlock Switch.
Check from the common terminal (white wires) to the
normally-open terminal (white wires).
–+
Monitor
Disconnect the wires from the Monitor Switch. Check
from the common terminal (white wires) to the
normally-closed terminal (red wire).
+–
(+) = CONTINUITY
(–) = NO CONTINUITY
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