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Discussion Starter · #1 ·
My Denon AVR-4520ci locks up/freezes. Here is the situation. My HDTV is on, and sound through the tv speakers. I turn on the Denon, as usual, and no sound. The display is CBL/SAT. I then try to switch to Blue Ray. This is when the Denon locks up. Green light is flashing. After that...no response using remote or actually pressing the power button. I have to unplug/plug back in the power cord. From there, it functions properly. I did a GUI firmware update the other day, that was prompted when I turned on the unit last week. This unit is only 6 months old. :hissyfit:

Not sure why this freezes up. Also, sometimes when I turn on the Denon (while HDTV is on), there is no sound from the external speakers.

Just FYI. I have RSL speakers (5.1 setup) and Martin Logan Depth i.

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