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MR-E55R-C
MR-E60R-C
5-3 BLOCK DIAGRAM OF PRINTED CIRCUIT BOARD
MR-E55R-C
MR-E60R-C
(1) Ice making cycle
(2) Automatic ice maker circuit
5-4 AUTO ICE-MAKER
CN2A
CN5D
CN10K
CN9S
CN1A
Water pump motor
LED for bacteria
removal from water
tank
6-pin connector
6-pin connector
8-pin connector
Ice tray thermistor
Ice making
compartment
thermistor
Water pipe heater
Water tank heater
9-pin connector
Ice making
gear box
Control board
Ice stock
Ice is stocked in the ice storage box.
Ice making capacity is about 100 -
120 cubes a day.
Stock capacity of ice cubes is about
100 cubes.
(With 8-cube ice tray)
Ice ejection
After the detection lever checks
the amount of ice, the ice tray
is rolled over for ice ejection.
When the ice storage box is
filled with ice, the ice tray does
not roll over.
Water supply
The ice tray is filled with water
from the water tank.
Parts outside/inside refrigerator
For 311V DC system
• Compressor
For 110V AC system
• Defrost heater 1
• Defrost heater 2
• Water tank heater
• Vegetable compartment heater
• Rotational heater board
• Water pipe heater
• Ice making tray heater
For 5V DC system
• Freezer compartment thermistor
• Refrigerator compartment thermistor
• Defrost thermistor
• Door switch (for refrigerator com-
partment, ice compartment & freezer
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
• Box fan
• Motor damper
• Ice maker gear box
• Three-way valve
• LED for bacteria removal from
water tank
• I-see sensor motor
• Interior LED
• Refrigerator deodorization LED
• Versa compartment supercool
freezing LED
• Vegetable compartment LED
Ice making
Ice tray thermistor watches
and controls the ice making
operation
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
Control circuit of refrigerator
• Read/control each compartment tem-
perature (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