Question about Televison & Video
Thanks for helping me with this. All of a sudden audio of my TV is gone. It was okay at on emoment and there is no sound at all. Definitely not muted. Tried to connect to dvd, head phone and no luck. Looks like the audio is completely gone. Video is good. Any suggestions
I would first try to determine if the problem is in the audio circuit or in the IF circuit. First you will need an RF signal generator with audio and video modulation this will allow you to inject audio into the set and allow you to track the signal with an oscilloscope. I would make the suggestion by your post that the audio circuit might be defective. However troubleshooting is the best bet. I would suggest that you have a qualified TV technician check the set out.
I hope this helps
Posted on Aug 21, 2008
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Posted on Jan 02, 2017
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Aug 21, 2011 | Audio Players & Recorders
Plug your headset to the earphone
jack (if installed) of the TV.
If you can hear the sound there, the fault may due to
speakers or the earphone jack itself. Faulty internal speaker
may replaced with new sets to back your sound to normal again. If
the earphone jack was faulty, you may spray it first with electrical contact cleanerwhile inserting and pulling the headset plug into it for one
minute to clean the contact. If nothing happens, this
jack need to replaced with new one.
If you can't hear the sound after inserting your headset, this is
an indication that the audio
circuitry was gone bad. The
most common caused of this trouble was the faulty sound IC(mounted in heatsink).
This is the one converts the audio signal to sound and feed to
your speaker's. I would advice you to look for a qualified technician to check
Hope I helped you.
Have a nice day!
Thanks for using Fixya.
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