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MITSUBISHI ELECTRIC Mitsubishi Home Refrigerator MR-G50J-SS-NZ User Manual

Page 32

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32

MR-G50J-NZ

6-8 TEST POINT DIAGRAM OF CONTROL BOARD

}

Compressor

5 W phase

3 V phase

1 U phase

}

Compulsory
defrosting by
short circuit

CN4D

3 Defrost
heater
1 Refrigerator

compartment

DC +5V
(Inverter circuit)

CN9D

CN3A

CN7S

CN2A

~

1

2 GND

3 GND

4 Machine chamber fan motor (+)

5 Refrigerator fan motor FG signal

6 Machine chamber fan motor / Refrigerator fan motor driver IC powe source

7 Machine chamber fan motor FG signal

8 Fan motor +

9

10

1

1

12

13

14

15

16

}

1

2

3

4

5

6

7

8

9

LED for bacteria removal from water tank

10

1

1

Power suplly of three-way valve

12

1 Reception of operation panel data

2 Power supply to operation panel data

3

4 GND

5 Ice maker position switch

6 W

ater pump -

7 Ice maker (reverse)

8 Ice maker (rotation)

Electromagnetic three-way valve

}

Damper for refrigerator

compartment / slide compartment

}

}

Damper for ice making

compartment / versa compartment

1

2 V

egetable compartment LED

3 Door switch input

4 Freezer compartment thermistor

5 Ice making compartment thermistor

6 V

egetable compartment thermistor

7 V

ersa compartment thermistor

8 Slide chilled compartment thermistor

9 Defrost thermistor

10 Ice making tray thermistor

1

1 Refrigerator compartment thermistor

12

13

14 5V com

CN8K

}

Damper for freezer

compartment

}

+

DNG
DC280 ~ 330V

}

+

DC+12 ~ 20V
(Inverter circuit)

}

+

}

AC
230V

7
5

DC+5V
(Refrige-

rator
control
circuit)

}

+

DC+12
~ 13V
(Refrige-

rator
control
circuit)

}

+

}

1 Ice tray heater

3 W

ater pipe heater

5 Divider heater (I/S)

7 V

egetable compartment heater 1, 2

9

1

1 Rotational heater board

OA090-2.qxp 06.7.20 9:56 AM Page 32