External Device Recognition Error - LG 42LE5500 Service Manual

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
11
2010. 2 .19
11/13
Replace Main B/D
Replace Main B/D
LGE Internal Use Only