Haier LE43B7600A Service Manual page 33

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7. OSD is unstable or can't work normally
OSD is unstable or can't work normally
No
Key board connected properly? Reconnect the key board
Yes
No
Replace the button function
Buttons are OK?
Yes
No
Replace the key board
Key board is OK?
Yes
Enter factory mode to do "Reset"
No
Replace the main board
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