My onkyo tx ds747 is saying protect even if i dont have anything plugged in to it! can you plz help me

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okay hello, you dont need a HDMI cable as it appears your receiver isnt equiped with that feature.The way you have to do this is if you have a source you run the video chord (yellow chord) then then left and right audio (red and white cable) run them from your souce such as satelite or dvd player or game console.you plug them into your input on your receiver then you run one video chord on the output port on your receiver this will put the sound through your receiver and put just the video to your tv.if your tv has a option to run audio out then you just reverse this pretty much.You run auudio left and right from the audio output on your tv to the input on your receiver.then on your menu on your tv make sure you go to speakers and set them to off and set it to output audio if this option is presented.

The audio output transistors or ic's have shorted and replacement is the only option.

A bateria interna do receiver Onkyo TX-DS747 . A um terminal da bateria corroeu e eu preciso de um substituto.

The problem could only be in the a/b switch, you may need to install a new switch.

You can buy directly from onkyo website, Ebay or Do Google search.

What it sounds like you are describing is the protection relay turning on then imediately turning off for the time period mentioned. That would indicate a possible short in the circuitry. Probably a capacitor that is intermittant or even a transistor about ready to fail. This is probably not something you can look for if you are not an electronic tech. Find a reputable shop and get it fixed before it quits and does more damage. Let me know how you make out.

hardrocko

Sounds like the "Pure Audio" mode is turned on. This mode is designed to use the amps power to dedicate to audio processing and sound quality. It turns off all front panel lights and video processing. Check you remote or thr front panel of the Onkyo for a "Pure Audio" button.

I see that I am not only one with same issue with TX-DS747, and would be grateful if someone could post some more info about this problem.

UNPLUG POWER FROM WALL socket 12 SECS AND REPLUG TO SEE IF THAT HELPS