→ abnormal audio/discontinuation/noise is same after “Check input signal” compared to No audio
C. Audio error
Wrecked audio/ discontinuation/noise
Wrecked audio/
Discontinuation/
Noise for
all audio
Check and replace
speaker and conne
ctor
Wrecked audio/
Discontinuation/
Noise only
for D-TV
Wrecked audio/
Discontinuation/
Noise only
for Analog
Wrecked audio/
Discontinuation/
Noise only
for External Input
Connect and check
other external devic
e
N
Y
Normal
audio?
Check and fix external device
Replace Power B/D
N
Y
Normal
voltage?
Check input si
gnal
-RF
-External Input
signal
Signal
normal?
(When RF signal is not re
ceived)
Request repair to external
cable/ANT provider
Y
Check audio
B+ Voltage (A13V)
Replace Main B/D
(In case of Extern
al Input signal err
or)
Check and fix ext
ernal device
Replace Main B/D
N
End
Established
date
Revised date
9/16
Error
symptom
Standard Repair Process
9
☞
A21+A18
Содержание 50UH5500 65UH5500
Страница 63: ......
Страница 66: ...Overview for 16 ULTRA HD Model K2Lp Hardware ...
Страница 68: ...LCD TV Repair Guide 16 years New Models Applicable Model UH55 ...
Страница 73: ...2 K2Lp Block Diagram Internal LGE Confidential ...
Страница 82: ...TROUBLE SHOOTING GUIDE ...
Страница 110: ...Appendix Exchange Power Board PSU No Light Dim Light Dim Light Dim Light No picture Sound Ok A 3 5 ...