LG 32LF550U - External Device Recognition Error

Check technical
information
- Fix information
- S/W Version
N
Y
Check
input
signal
Y
N
Check and fix
external device/cable
Replace Main B/D
Replace Main B/D
Fix in
accordance
with technical
information
D. Function error
External device recognition error
Established
date
Revised date
12/14
Standard Repair Process
Signal
Input
Technical
information
External Input
And Component
Recognition error
HDMI, Optical
Recognition error
Error symptom
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