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Cyber
Question:
How to troubleshoot if your TV is connected
to an SD cable or satellite box and experiencing audio sync issues?
Answer:
To
troubleshoot
if your TV is connected to an SD cable or satellite box, follow these steps:
Determine
if the audio is leading or following the picture. Leading means that you
hear the audio before the lips move. Following means the lips move before
you hear the audio.
- Try
different channels.
- If the audio is in sync on other channels, then there
could be a broadcasting issue with the original channel or program.
- If the
audio is not in sync on the other channels, test other low range channels
and high range channels.
- If the audio is out of sync on all other channels,
then there could be an equipment or cabling problem.
Cable
subscribers go to Step 2. Satellite subscribers, go to Step 3.
- Disconnect
the incoming cable line from the cable box (usually labeled “cable in”)
and connect it directly to the TV. Perform an Auto program on your TV so
that your TV memorizes channels. If you do not know how to do run the Auto
Program function, click
here for instructions.
After your TV has memorized channels, test five or six channels to see if
there is an audio sync issue.
- If there is no audio sync issue, your cable
box may be defective or the cables connecting the box to the TV may be defective.
Try replacing your cables and/or cable box to resolve the issue.
- If there
is still an issue on all channels, there could be an issue with your broadcast
signal or the TV. Go to Step 4.
- To
determine whether the problem is caused by the broadcast signal or your
equipment, connect a secondary device to the input connection you are using
for your set top box or satellite box. A secondary device could be a DVD
player, VCR, Game system, etc. Play something on the secondary device
and see if the audio is in or out of sync.
- If the Audio is in sync, then
the cabling connecting the set top box to the TV may be defective or the
box itself may be defective. Replace the cables and/or box.
- If the issue
continues after you’ve replaced the cables or box, your broadcast signal
is most likely at fault. Contact you service provider for further assistance.
- If the audio is out of sync when you play the second device, your TV needs
service. Please click the “Create Online Service Request” button at the
bottom of this article to begin the service process.
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