Question about Dynex "- 32"" Class - LCD - 720p - 60Hz - HDTV DX-32L221A12"
Great picture but no audio to TV from pc. using win7 home premium and in devices only see generic driver.
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Posted on Jan 02, 2017
Dynex has the documentation for the DX-32L221A12 on the product site: http://www.dynexproducts.com/products/televisions/DX-32L221A12.html?supportTab=open . The direct link to the User Manual in English is http://www.dynexproducts.com/cms/documents/Manuals/DX-32L221A12-DX-40L260A12_11-0101_WEB_ENG_V1_Final%20lr.pdf . Since this is a PDF you will need Adobe Reader to access the file. Once in Adobe Reader you can print the document to any printer connected to your computer. If you can't print the document, you can put the file on external media (flash drive or optical media) and have it printed at your local print shop.
I hope this helps.
Posted on Nov 25, 2011
Most often, this symptom is a result of a failing LCD CONTROLLR (TCON) BOARD but a faulty MAIN BOARD can certainly cause very similar symptoms. Unfortunately, without a donor TV to swap parts with or a dedicated test rig, it can be very difficult to differentiate between these problems.
One quick way to test this is to remove the rear access panel on the TV and then replace the TCON board with a new one, since this is the most often the source of the trouble.
You can usually find replacement supply circuit boards online by searching for your TV's model number.
Here is a link to a replacement TCON BOARD for your TV currently available at SHOPJIMMY for about $63 US plus shipping:
Just use your mouse to click on the link, which is the underlined and highlighted text just above. This will open a new web browser page automatically for you and allow you to view the information and items at the website indicated.
The repair / replacement procedure is not extremely difficult if you have some basic electrical safety knowledge and some basic electronics / mechanical repair skills.
You will need to unplug the power cord from the unit, lay the TV screen side down on something soft and flat like a bed if necessary, and then remove the rear access panel or the entire rear cover as required in order to access the circuit boards inside.
When you remove the rear cover and access the circuit boards inside, just check the part number that is printed right on your circuit boards and confirm that they exactly match the ones provided in the online listings. Also make sure that any part you order is labelled "TESTED WORKING" in the condition description. Any part with a condition description of "AS IS" is probably faulty itself as well.
The TCON BOARD will likely be hidden under its own RF shield cover plate. Just remove the screws / tape securing this protective metal cover as well. Then unclip and remove the various electrical wire connectors leading to the TCON BOARD. Then remove the screws securing the circuit board to the frame and then remove the circuit board itself. Be sure to avoid touching any large capacitors on the power supply circuit board which can retain a nasty charge even after the unit is unplugged.
Then just screw in the new circuit board and connect all the wire bundles to their appropriate connectors on the new circuit board and then replace the rear cover. Then plug in the power cord and test.
Here is a link to another Expert's solution to a similar problem which includes links to his excellent and informative set of LCD TV / MONITOR TROUBLESHOOTING GUIDES:
These guides will give you some idea of the various problems with LCD TVs and monitors and the associated repair procedures.
If you choose to rate BUDMRTN's troubleshooting tips by clicking on the YES THIS WAS HELPFUL icon on his solution page at the above link, then I thank you very much for your time and consideration.
I hope that was helpful to you, good luck.
Posted on Jan 09, 2012
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