LG 42LG710H Owner's Manual page 124

APPENDIX
A A u u d d i i o o P P r r o o b b l l e e m m s s
Picture OK but No sound
No output from one
of the speakers
Unusual sound from
inside the product
No sound
when connecting HDMI
or USB
P P C C M M o o d d e e P P r r o o b b l l e e m m s s
The signal is out of range
Vertical bar or stripe on
background &
Horizontal Noise &
Incorrect position
Screen color is unstable
or single color
P P o o w w e e r r
No Power
E E r r r r a a t t i i c c O O p p e e r r a a t t i i o o n n
Installer menu setup
S S o o f f t t w w a a r r e e P P r r o o b b l l e e m m s s
Cannot direct enter chan-
nel number or "No Signal"
appears
!
NOTE
For other problems not caused by the TV, refer to other devices' operating guides.
G G
124
Press the VOL or VOLUME button.
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Sound muted? Press the MUTE button.
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Try another channel. The problem may be with the broadcast.
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Are the audio cables installed properly?
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Adjust Balance in menu option.
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A change in ambient humidity or temperature may result in an unusual noise
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when the product is turned on or off and does not indicate a fault with the
product.
Check High Speed HDMI cable.
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Check USB cable over version 2.0.
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Use normal MP3 file.
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Adjust resolution, horizontal frequency, or vertical frequency.
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Check the input source.
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Work the Auto configure or adjust clock, phase, or H/V position. (Option)
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Check the signal cable.
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Update video card drivers.
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See troubleshooting flow chart.
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Adjust Installer menu settings as required.
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After 2-5-5 + MENU, only channels included in TV controller will appear. If chan-
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nel is available it can be added to channel scan, rescan channels. If it is not avail-
able, the 'No Signal' message appears on the TV screen.
*This feature is not available for all models.