Sony DE445 receiver/ "protect" on screen and shut off
I ran speakers through wall and speaker wire does not have positive or negative markings,by conecting a positive from receiver to a negative on speaker would this cause receiver to display protect and shut off. And if so is there a way to check which wire is positive or negative.
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first check for any loose speaker wire in the back as this will cause the unit to go into protect mode if the bare speaker wire is touching, if thats not the case then there is a problem with the unit internaly and would be hard to tell whats wrong with it without looking at it.
Onkyo & Harmon Kardon it a very nice unit and it built very professionaly and very sensitve unit. Its very important that you make sure the correct pole is connect correctly when it come to speakers. the unit come with resetable breakers inside the receiver (safety protection) so you wont blow or short the unit if not connected up correctly. when wiring speakers up from an to the receiver you have to make sure the poles are hook up correctly. positve speaker wire go straight to positive plug behind the receiver same as negative. the speaker wires should have some kind of making on it to mark as either positive or negative. try that and see if that help, if nedd more help.
Check your speaker connections at the back of the receiver and at the speakers. You have a short. If you don't see anything obvious, disconnect your speakers at the receiver and play a dvd and turn up the volume. If it stays on, you have a wire or a speaker problem. If it cuts out , you have a DSP chip problem. Reconnect speakers one by one and test each speaker until it cuts off or you have fixed the problem. If you still have issues, post a comment and I can help you some more.
The output of the Sony is "signal only" not power. Being "passive" like your sub. What you need is a sub amp, and they are not cheap, 400-600 on average "min". Unless you have a Velodyne 15 or 18, just get an amplified sub, they start around 150 new. Hope this helps
Hi, your problem is a bad solder connection of the relay linked to the lautspeaker sockets. I had the same problem and googled for the solution. Since I resoldered the pins everything is fine. That problem is well known and happens to a lot of Sony receivers.
I can send you a link with a detailed how-to-do solution with pictures, however it's written in german language. But you can use some online translators.
Here is the link: http://www.bmw-syndikat.de/bmwsyndikatforum/topic.asp?TOPIC_ID=28280&FORUM_ID=20&CAT_ID=9&Forum_Title=Geplaudere&Topic_Title=Problem+Sony+STR-DE445