LG 43LH54 series - Wrecked Audio;Discontinuation;Noise

Check and replace
speaker and
connector
Connect and check
other external
device
Y
Check and fix external device
Replace Adaptor
N
Y
Check input
signal
-RF
-External Input
(When RF signal is not
received)
Request repair to external
cable/ANT provider
Y
Check Voltage 19V
of Adaptor
(In case of
External Input
signal error)
Check and fix
external device
Replace Main B/D
N
☞A13
End
Signal
Normal
Normal
Voltage
Normal
Audio
Wrecked Audio/
Discontinuation/
Noise for all audio
Wrecked Audio/
Discontinuation/
Noise only for D-TV
Wrecked Audio/
Discontinuation/
Noise only for Analog
Wrecked Audio/
Discontinuation/
Noise only for
External Input
N
Replace Main B/D
Error Symptom
C. Audio Error
Established date
10/14
Content
Wrecked audio / Discontinuation / Noise
Revised date
Standard Repair Process
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