Samsung NZ63K7777BK Service Manual page 24

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4-3-7
Key Short Information (
)
YES
Is the key not recognized
at all?
NO
YES
Is the key recognized
intermittently?
NO
Is the key not recognized
YES
after cleaning the control panel?
NO
Assy Touch PCB is
defective
S/W Information
Replace the
Assy Touch PCB
NO
After Power > On,
does the symptom continue?
YES
Replace the sub wire
or Assy Touch PCB.
Perform the operation again and check if it
is working properly.
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