LG OLED55B9PUA

Check technical
information
- Fix information
- S/W Version
N
Y
Technical
information?
Check
input signal
Signal
input?
Y
N
External Input
Recognition error
Check and fix
external device/cable
HDMI/DVI,
Optical Recognition
error
Replace Main B/D
Replace Main B/D
Fix in
accordance
with technical
information
External device recognition error
Established
date
Revised date
15/17
Error
symptom
Standard Repair Process
15
D. Function error
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