LG 32LF550B Service Manual page 55

Standard Repair Process Detail Technical Manual
Error symptom
Content
UHD
1. Measure DC 24V applying to inverter PCB from Power
Board.
2. Output 24V from Power Board -> supply to inverter PCB.
Check Pin contacting statement and connection statement.
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Only for training and service purposes
A. Video error_No video/Normal audio
Inverter B+ 24V measuring method
Established
date
Revised
date
FHD/HD
1. Measure DC 13V applying to inverter PCB from Power
Board.
2. Output 13V from Power Board -> supply to inverter PCB.
Check Pin contacting statement and connection statement.
A2
LGE Internal Use Only