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SONY STR DE985 - UNLOCK problem. Not getting sound. | Home ...
https://www.hometheaterforum.com/community/threads/sony-str-de985-unlock-problem-not-getting-sound.110404/#:~:text=The%20manual%20will%20tell%20you%20how%2C%20but%20for,5%20seconds...%20eventually%20the%20receiver%20will%20say%20%22reset%3F%22
Error: UNLOCK is displayed on the Audio/Video (A/V ... - …
https://www.sony.com/electronics/support/articles/00025129
Error: UNLOCK is displayed on the Audio/Video (A/V) receiver. When the UNLOCK error message appears in the display of the A/V receiver, there is either a problem receiving a digital audio signal or the system is tuned to receive a digital audio signal but there is no digital audio source available.
Sony STR-DE475 Receiver - UNLOCK problem through Optical ...
https://www.avforums.com/threads/sony-str-de475-receiver-unlock-problem-through-optical.537475/
Just look at the optical input on the back and it should have written right next to it whether it's TV/SAT or Video 2 etc. You don't need to bother selecting OPT, just press the AUTO AFD button repeatedly until it says AUTO (or something very similar) then just turn the source on. The UNLOCK message should disappear almost instantaneously.
There is no sound when using the optical digital audio ...
https://www.sony.com/electronics/support/articles/00023427
Follow these steps to troubleshoot no audio through the audio optical connection. IMPORTANT: This solution assumes that the receiver is able to produce audio using a different input source (tuner, etc.). NOTE: Because each of these steps represents a possible solution to this issue, check the receiver for audio output after completing each step.
My TV doesn't output sound through the DIGITAL AUDIO …
https://www.sony.com/electronics/support/audio-components-receivers-amplifiers/str-de975/articles/00027069
Set the home theater or stereo system to the appropriate input and mode for the optical connection. Securely connect one end of the optical digital cable to the optical out on your TV. Connect the other end to the optical in on your home theater or stereo system. The optical cable works properly if you see a red light on both ends.
Multi Channel AV Receiver - Sony
https://www.sony.com/electronics/support/res/manuals/W001/W0010665M.pdf
“UNLOCK” appears on the display if no digital signal is input through the OPTICAL jack. “OPT” also lights up when SAT input is selected if INPUT MODE is set to “AUTO” and the source signal is a digital signal being input through the OPTICAL jack. F DTS Lights up when the receiver is decoding DTS signals. Note When playing a DTS format
Multi Channel AV Receiver - Sony
https://www.sony.com/electronics/support/res/manuals/W001/W0010659M.pdf
“UNLOCK” appears on the display if no digital signal is input through the OPTICAL jack. “OPT” also lights up when SAT input is selected if – INPUT MODE is set to “AUTO IN” and the source signal is a digital signal being input through the OPTICAL jack. – INPUT MODE is set to “OPT IN” (page 58). G DTS Lights up when the receiver is
SONY STR DE985 - UNLOCK problem. Not getting sound. | Home ...
https://www.hometheaterforum.com/community/threads/sony-str-de985-unlock-problem-not-getting-sound.110404/
Turn it on, but do not release the power button. Keep it pressed for at least 5 seconds... eventually the receiver will say "reset?" or something to that effect in it's display. Release the power button and press the enter button on the front panel to reset the receiver. (Check your manual!)
The display on the A/V receiver displays LPCM or ... - Sony
https://www.sony.com/electronics/support/articles/00021287
Press the right arrow button until CTRL HDMI is displayed. Press the down arrow button until AUDIO OUT is displayed. Press the right arrow button and make sure its set to AMP only instead of TV+AMP. NOTE: Some cable boxes or satellite receivers cannot output Dolby or DTS using an HDMI cable.
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