LG 75UM7570AUE Service Manual page 61

Appendix. Examples of Symptoms((Only if using T-con Board) )
Symptom
Item
Name
T-CON Image Broken
Darkness at the
T-CON
top of the screen
T-CON Image Broken
T-CON Image Broken
Cause
T-CON Wafer Locking The strength is
weak and cable contact failure occurs
Initial normal operation,
upper darkness during heat run
The entire screen is dark and bit noise
occurs
The entire screen is dark and bit noise
occurs
A - 10/11
Check parts by symptom
Symptom Image
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