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Have unlock problem on str-da1200es receiver - Sony Audio Players & Recorders

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Sounds simple, but could the input mode button been pressed accidentally? Try setting this to auto and see if the unlock message switches off. This happened to me! :-)

Posted on Dec 21, 2008


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The word UNLOCK may appear in the display if there is a problem receiving a digital audio signal. Follow the steps below to troubleshoot this issue.
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  4. Ensure the A/V source is set appropriately to output a digital signal.
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Just fixed it, The Optical cable wasnt properly plugged in on the other end.

Found the fix here:

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