6-8 TEST POINT DIAGRAM OF CONTROL BOARD MR-G50J-NZ
Compressor
}1 3 5 Uphase Vphase Wphase
DC +5V | DNG | DC+12 ~ 20V |
(Inverter circuit) | DC280 ~ 330V | (Inverter circuit) |
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– + – + | – + |
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| CN2A | |
7 | AC | ~ | } |
5 | } 230V | ||
3 Defrost |
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heater |
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| Refrigerator | ||
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CN3A |
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}119753 | 1 | |||
Rotational heater board |
| Vegetable compartment | Water pipe heater Divider heater (I/S) | Ice tray heater |
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| heater 1, 2 |
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CN9D |
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Power suplly of | LED for bacteria removal from water | } Electromagnetic | } Damper for ice making compartment / versa compartment |
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CN4D |
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8 9 10 11 12 13 14 15 16 | 7 | 6 | 5 | 4 | 3 | 1 2 | |||||||||||||
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| Fan motor + | Machine chamber fan motor FG signal | Machine chamber fan motor / Refrigerator fan | Refrigerator fan motor FG signal | Machine chamber fan motor (+) | GND | GND |
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| } Damper for freezer compartment | } Damper for refrigerator compartment / slide compartment |
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| motor driver IC powe source |
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Compulsory defrosting by short circuit
– }DC+5V (Refrige- rator
+ control circuit)
– }DC+12 ~ 13V (Refrige-
+ rator control circuit)
CN8K |
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}87654321 |
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GND Ice maker position switch Water pump - Ice maker (reverse) Ice maker (rotation) |
| Reception of operation panel data Power supply to operation panel data | 5V com |
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| Vegetable compartment LED Door switch input Freezer compartment thermistor Ice making compartment thermistor Vegetable compartment thermistor Versa compartment thermistor Slide chilled compartment thermistor Defrost thermistor Ice making tray thermistor Refrigerator compartment thermistor |
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