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5. Sound problem
No sound or abnormal sound
Check audio source or
TV channel are normal?
Yes
TV is mute? Or the
volume is too low?
NO
Enter factory to do reset
NO
Check the wire between main
board and speaker is ok?
Yes
Check the value of speaker
resistance is in specification?
Yes
Replace main board
18
NO
Reset audio source or change
TV channel
Yes
Cancel the mute or adjust the volume
NO
Replace the wire
NO
Replace the speaker
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