07.28, 2012
827 Writer Sungil Kim
Category Power defect
Midcategory
Power Auto OFF/ ON
Subcategory
SMPS Board
Model
Name
2012 Ne model PDP PN51E490B1F
Specific
Symptom
Power ON /OFF repeats
Cause SMPS board defect
How to
Inspect &
Handle
Measure DC voltage within "DCV" Range with a digital
multi-meter.
Measure the voltage of Pattern TP
Point connected to SMPS Board ICQ851
# 13 Pin as the left picture.
Red pole: Touch TP connected to
ICQ851 #13.
Black pole: Touch GND on SMPS board.
Measure the TP Point voltage.
OK: 2.6 ± 0.2 [V]
NG: 1.0 [V]↓ Short
