9
RS2220001 Rev. 2
Product Information
Antennas, Antenna Gears, Antenna Motors
Properly distributes microwave energy throughout the
cavity.
Autotransformer
This transformer provides step-up voltage for the blower
motor, antenna motors, and oven light.
Blower/Fan Assembly
Circulates cooling air throughout the machine
compartment and cavity.
Power Relay
The power relay is actuated by the digital timer. The
contacts on this relay complete one side of the power
line to the high voltage power transformer.
Door Interlock and Monitoring Switch
WARNING
!
All Models Except RC27 and KFC1
When the line fuse is blown the Interlock Switch
Module must be replaced.
Model RC27 and KFC1
When the line fuse is blown the Interlock Switch
Assembly and Power Relay must be replaced.
Door Interlock Switch
This microwave oven has a monitoring system to assure
proper operation of the safety interlock switch.
Door Interlock Switch Assembly
The interlock switch assembly located behind the cavity
front, is activated by the door guide and door hook
attached to the door.
The door interlock switch assembly consist of switches
that control various functions within the oven. The monitor
switch assures proper operation of the safety interlock
system.
The primary interlock switch and secondary interlock
switch control voltage to various components.
Grease Shield
Covers and protects the top antennas.
DANGER
!
To avoid severe personal injury or death avoid
contacting any high voltage parts. The capacitors are
at high voltage (4000 volt) potential and it is extremely
important that they be grounded before handling.
Transformers
Two or three high voltage transformers are used in the
unit. Each supplies high voltage A.C. for operation of the
magnetron tubes.
High Voltage Capacitor
Doubles the A.C. output voltage from the high voltage
transformer.
High Voltage Diode (Rectifier)
Is connected at the output side of the high voltage
capacitor. It changes the voltage from A.C. to D.C. It
passes current in one direction and blocks it in the other.
Also refered to as a rectifier.
Magnetron
With a filament voltage and the high D.C. voltage from the
output of the H.V. capacitor, diode junctioning the
magnetron will put out an electomagnetic radio frequency
of 2450 MHz to heat the load in the oven.
Thermal Protectors
All magnetrons in this oven are protected by resettable
thermal cut-outs. These thermal cut-outs are mounted
directly on the body of the magnetron. If one of these
thermal cut-outs open, the oven will either indicate an
error code in the display or operate at reduced power.
Keypads
Allows customer operation and programming of oven.
Triac
The triac is controlled (gated) by the high voltage and low
voltage circuit boards. The triac controls one side of the
power line going to the high voltage power transformers.