LG LAEC015 Service Manual page 39

Standard Repair Process Detail Technical Manual
AIO136
symptom
LED SIGNAGE
Content
Error
B. Power error
Check AC Cable connection between left half and right half
12V PSU
PIN NO. PIN NAME PIN NO PIN NAME
1,2 12V
3.8V PSU
PIN NO. PIN NAME PIN NO PIN NAME
1,2 3.8V 3,4
PIN NO. PIN NAME PIN NO PIN NAME
1,2,3,4 3.8V
B2
Established
date
Revised
date
3,4 GND
GND
HUB Board
5,6,7,8 GND
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B2