Question about Soyo DYLT032D 32 in. LCD Television

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Soyo 32 inch TV, no sound

I have a soyo 32 inch tv with no sound, everything else works fine?

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Hello,

First check that any muting control is not activated. This might be
a button on the remote or set itself. If you have a headphone jack, it
may have dirty contacts as plugging in a headphone usually mutes
the speaker.

If the set is mono or only one channel of a stereo set is out, then
check for bad connections to the loudspeaker. Test the loudspeaker by
disconnecting one of the wires (with the power off!) and measuring its
resistance with an ohmmeter (it should be less than 100 ohms - probably
less than 8 ohms). Or momentarily touch a 1.5 volt battery to the speaker
terminals - you should get a click or pop from the speaker.

Next, trace back from the speaker output terminals to the circuit board
and look for bad solder connections or a loose or dirty connector.

If these tests do not reveal anything, you probably need a scope (or
audio signal tracer) and schematic. Or at least the part number off of
the chip. Is the final amp a chip also or just a transistor? Have you
tested the transistor? If there is little or no buzz from the speaker,
that would indicate a problem fairly near the output. If the tuner/if were
bad, I would expect some noise/humm pickup from the low level audio stages.
Get the part number off of the chip. If it is in a socket, check the
contacts for corrosion or looseness.

Hope this helpout.....

Posted on Jul 14, 2010

  • midevil6 Mar 23, 2011

    Check the main board. upper right hand side look on back of board. I have the same issue no sound board is burnt the part number you need is LRM303360-0001. Hope this helps

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