LG 28LM4 0B-PU Series Service Manual page 58

Standard Repair Process Detail Technical Manual
Error
symptom
Content
Backlight
Forward Symbol
Min
Voltage
28 28 29 29
VF
32 34.8
43 69.6
B. Power error _No power
Check power input voltage
Values
Unit
Typ Max
31.5 31 5 34 34
37.8 40.8 Vdc
75.6 81.6
Check the DC 12V.
Established
date
Revised
date date
<28">
A18
- 58 -
A18