Question about Sony Dream Home Theater System, DAV-DZ120 System
If all other functions are working , and the problem is not on a single DVD, then it may be a firmware issue.
Unfortunately firmware upgrade for this model is not available online.
In that case you will need to contact Sony at the number listed on product user manual, they will follow you through the procedure.
If the upgrade is not available, Sony usually replaces products that are defective because of factory problems even out of warranty time.
First ensure that the problem is the home theater player, and not a bad connection to the speakers.
Also ensure that the problem is happening on different DVDs, and it is not caused by a defective disk.
Before calling Sony, leave the unit disconnected for about ten minutes, to reset the circuits, and check all connections. If the problem is still there after this simple reset, contact Sony.
Posted on Jan 30, 2010
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Posted on Jan 02, 2017
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