6-3 BLOCK DIAGRAM OF PRINTED CIRCUIT BOARD
MR-G50J-NZ
Operation P.C. board
•Setting up temperature, feature, quick mode and eco mode for each compartment
•Display of
Control board
Control circuit of refrigerator •Read/control each compartment tempera- ture
•Control on timers
•Operation control of the parts such as fan motor or heater, etc. equipped inside/ outside
Inverter control circuit of compressor •Inverter control of compressor
Parts outside/inside of Refrigerator
For 325V system •Compressor
For 230V system •Defrost heater
•Vegetable compartment heater 1&2
•Rotational heater board •Divider heater (I/S) •Water pipe heater
•Refrigerator compartment room light •Ice making tray heater
For 12V DC system •Refrigerator fan motor •Machine chamber fan motor •Motor damper
•Ice maker gear box
•LED for vegetable compart ment.
•LED for bacteria removal from water tank
For 5V DC system
•Freezer compartment thermistor •Refrigerator compartment thermistor •Defrost thermistor
•Slide chilled compartment thermistor •Door switch (For refrigerator com partment & ice compartment)
•Ice tray thermistor
•Ice making compartment thermistor •Vegetable compartment thermistor
•Versa compartment thermistor
6-4 AUTO ICE MAKER MR-G50J-NZ
(1) Ice making cycle
Water supply
The ice tray is filled with water from the water tank.
(2) Automatic ice maker circuit
Ice ejection
After the detection lever checks the amount of ice, the ice tray is rolled over for ice ejection.
Ice making
Ice tray thermistor watches and controls the ice making 
operation.
Ice stock
Ice is stocked in the ice server.
Ice making capacity is about 100 - 120 cubes a day.
Stock capacity of Ice cubes is about 100 cubes.
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