LG 55LM9600 Service Manual page 83

Standard Repair Process
LCD TV
Check
input
signal
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Only for training and service purposes
D. Function error
Error
symptom
External device recognition error
Check technical
Y
information
Signal
input?
- Fix information
- S/W Version
N
Check and fix
external device/cable
Established
date
Revised date
External Input and
N
Technical
Component
information?
Recognition error
Y
RGB,HDMI/
DVI, Optical
Fix in
Recognition error
accordance
with technical
information
13
2012.01.16
13/15
Replace Main B/D
Replace Main B/D
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