-5
7
-
Check the
Item
⑤
(Main PCB
Voltage value)
※
Sub PCB Voltage NG or,
When Main PCB Voltage is
OK,
Estimated Harness open
circuit.
Cube mode doesn't work
2
Check the SUB PCB Resistance
Value
No
Yes
6
Explain to the customer
(Refrigerator is OK)
1
Check the Auger Motor
(Working Sound,
Visual inspection)
3
Check the SUB PCB Voltage Value No
Yes
Change the
Dispenser
Assembly, Ice
(Loc. 612A)
4
Check the Display PCB Voltage
Value
No
Yes
Change the
Cover
Assembly,
Display
(Loc. 279A)
5
Check the Main PCB Voltage Value No
Yes
Change the PCB
Assembly, Main
(Loc. 500A)
Yes
CON1
25th pin, 27th pin
25th pin, 28th pin
27th pin, 28th pin
yG˟
|SG}SG~
2.37~2.73
CON5
1st pin, 5th pin
} }
Y[}
Y[}·XWL
CON1 CON5
26th pin, 5th pin
} }
w~t
\}·XWL
CON1 CON5
20th pin, 5th pin
} }
Y[} l
\}·XWL
While pushing the lever S/W
is voltage correct?
No
Change the
Case
Assembly,
PCB
(Loc. 500C)
CON102
29th pin, 3rd pin
} }
w~t
\}·XWL
CON102
28th pin, 3rd pin
} }
Y[} l
\}·XWL
CON5
1st pin, 13th pin
} }
Y[}
Y[}·XWL
Copyright © 2019 LG Electronics Inc. All rights
reserved. Only training and service purposes.
