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MR-G50J-NZ
6-3 BLOCK DIAGRAM OF PRINTED CIRCUIT BOARD
MR-G50J-NZ
(1) Ice making cycle
(2) Automatic ice maker circuit
6-4 AUTO ICE MAKER
CN3A
CN4D
Control board
CN9D
CN8K
CN7S
Water pump motor
LED for bacteria
removal from water
tank
6-pin connector
6-pin connector8-pin connector
6-pin connector
Ice tray thermistor
Ice making
gear box
M
0
5
4
6
5
4
3
2
1
6
5
4
3
2
1
3
1
8
9
8
9
3
1
6
5
4
3
2
1
6
5
4
3
2
1
6
5
4
3
2
1
6
5
4
3
2
1
3 3
5 5
6 6
9 9
6
5
8
7
6
5
8
7
0
5
4
M
Ice making
compartment
thermistor
Water pipe heater
CN2A
9-pin connector
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.
Ice ejection
After the detection lever
checks the amount of ice, the
ice tray is rolled over for ice
ejection.
Water supply
The ice tray is filled with water
from the water tank.
Ice making
Ice tray thermistor watches
and controls the ice making
operation.
Control circuit of refrigerator
•Read/control each compartment tempera-
ture (Neuro-fuzzy)
•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
•Inverter-drive power module
•Detection of bus-bar voltage
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 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
•Position-specifying switch in ice
maker gear box
•Versa compartment thermistor
For 12V DC system
•Refrigerator fan motor
•Machine chamber fan motor
•Motor damper
•Ice maker gear box
•Three-way valve
•LED for vegetable compart
ment.
•LED for bacteria removal from
water tank
Operation P.C. board
•Setting up temperature, feature, quick mode and eco mode for each
compartment
•Display of self-check
•Outside air thermistor
•Buzzer
Control board
OA090-1.qxp 06.7.20 9:55 AM Page 17