LG LFX28968SW Service Manual - Page 32
Check the White/Red to White/Black.
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8-9 Communication Error (Er CO) No Checking flow 1 Check the loose connection. 2 Check the Red to White/Red. CON101 3 Check the Orange to White/Red. CON101 4 Check the White/Black to White/Red. CON101 5 Check the White/Red to Orange. 6 Check the White/Red to White/Black. Result & SVC Action Result 12 V Other SVC Action Go to the 3 Check the Hinge (loose connection) Change the Main PCB Result 0 or 5 V Other SVC Action Change the Display PCB Go to the 4 Result 0 or 5 V Other SVC Action Change the Main PCB Go to the 5 Result 0 or 5 V Other SVC Action Change the Display PCB Go to the 6 Result 0 or 5 V Other SVC Action Change the Main PCB Explain to customer - 32 -
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- 32 -
8-9
Communication Error (Er CO)
No
1
2
Checking flow
Check the loose connection.
Check the Red to White/Red.
Result & SVC Action
Result
12 V
Other
SVC Action
Go to the 3
Check the Hinge
(loose connection)
Change the Main PCB
5
Check the White/Red to Orange.
6
Check the White/Red to White/Black.
<CON101>
3
Check the Orange to White/Red.
Result
0 or 5 V
Other
SVC Action
Change the Display PCB
Go to the 4
4
Check the White/Black to White/Red.
Result
0 or 5 V
Other
SVC Action
Change the Main PCB
Go to the 5
Result
0 or 5 V
Other
SVC Action
Change the Display PCB
Go to the 6
Result
0 or 5 V
Other
SVC Action
Change the Main PCB
Explain to customer
CON101
<Display>
<CON101>
CON101
<Display>
<CON101>
CON101
<Display>
<CON5>
<CON5>