Main Pcb - LG LRE30451SW Service Manual

COMPOSITION OF CONTROL

Main PCB

Main PCB
P/N : 6871W1N002A
Main function
▶ Supply a DC power source (GND,5V,12V(Vry(oven heater switching)),Vdisp(5V))
▶ Supply a DC power source (GND,12V(Vry(cooktop heater switching voltage))
▶ Oven heater control
(DLB / Broil / Bake)
▶ Oven display control
▶ Cook top heater control
(Warmer zone / RR / LR / RF / LF)
▶ Cook top display control
▶ Oven lamp / door lock motor / convection fan control
▶ Detecting oven temperature / warming drawer temperature
▶ Buzzer sound control
▶ Key entry
▶ Door open/close, Door lock/unlock detection
▶ Error mode detection and pop up
▶ Supervising hot cook top element
▶ Single Radiant Surface Elements -Right Rear, Left Rear, Left Front- on/off, power level relay switching
▶ Dual Radiant Surface Elements -Right Front INNER, OUTER- on/off, power level relay switching
▶ Single Radiant Surface Elements
-Warming Zone (Center Rear)-on/off,power level relay switching
▶ Supervising cook top element hot
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