LG LFXS26973 series, Service Manual

Page: 43 / 113

Check the
Hinge (loose
connection)
Change the
Main PCB
Communication Error (CO E)
2
Check the voltage.
Are CON101 7
th
pin ~ 6
th
pin
voltage 12V?
And CON101 3
rd
pin ~ 6
th
pin ?
No
Yes
7
Explain to customer
1
Check the loose connection
Housing Voltage [V]
CON101 7 th pin ~ 6 th pin 12V
CON101 3 rd pin ~ 6 th pin 5V
Change the
Display PCB
3
Check the voltage.
Is CON101 5
th pin ~ 6 th pin
voltage 0V or 5V?
Yes
No
Housing
Voltage
[V]
CON101
5
th
pin ~ 6
th
pin
Not
0V, 5V
Change the
Main PCB
4
Check the voltage.
Is CON101 4
th
pin ~ 6
th
pin
voltage 0V or 5V?
Yes
No
Housing
Voltage
[V]
CON101
4
th
pin ~ 6
th
pin
Not
0V, 5V
Change the
Display PCB
5
Check the voltage.
Is CON6 8
th
pin ~ 9
th
pin
voltage 0V or 5V?
Yes
No
Housing
Voltage
[V]
Not
0V, 5V
Change the
Main PCB
6
Check the voltage.
Is CON6 10
th pin ~ 9 th pin
voltage 0V or 5V?
Yes
No
Housing
Voltage
[V]
CON6
10
th pin ~ 9 th pin
Not
0V, 5V
No
CON6
10
th pin ~ 9 th pin
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