The following table shows the connections of connectors on main PCB.
Connector Connects to Usage
CN1
#1 - #2: Heater
#5: Triac
To heat chamber.
To control heater ON/OFF
CN2 #1 - #4: Power transformer To supply the power to PCB.
CN5 #1 - #4: Thermal guard
To turn heater off when it detects abnormality in
chamber temperature.
CN7 Front board (CN10)
CN8 Front board (CN11)
CN9 Front board (CN12)
CN13 #1 – #2: Key lock switch
CN14 #1 - #2: Thermister sensor To detect chamber temperature.
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