Question about Yamaha HTR-5250 Receiver

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Left -Surround channel

Left rear surround channel making cracking noise, isolated the problem to Yamaha receiver , any ideas where i should look in the receiver to fix the problem Thanks -Jagan

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Re: Left -Surround channel

If you know anything about testing IC's and transistors, you should not have a problem repairing this amp. I can tell you to look in the output section of the amp, and theres several things in there that can cause this. No boards to replace, only componets soldered into place. The correct way to trouble shoot this reciver would be to hook up some load resistors to where the speakers go. Then insert a 400 to 1000 hz signal at .775mv, then hook up a scope on the amp output or in differant stages to see where its clipping or breaking down. You may also be able to use a componet cooler or heater to make certain parts act up if they are intermittant. Remember though, if you have no training in electronics, your much better off taking the receiver to an expert repair depot or buying a new one, because you can't look at it and say theres the bad part unless its cooked.

Posted on Sep 13, 2006

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I have a sony STR-DE897 and my rear speakers dont get sound when plugged into the surround back ports..Is there a certain setting in order for the rear surround spreakers to work? or does that mean the...

There are a few things required for the rear surround channels to operate;

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2. The media being played through the receiver must have audio encoded for the rear surround
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3. The audio level of the speaker channels must be set high enough to be audible.

Enter the surround setup menu with your remote. Use the center button on the remote to toggle through the selections, press down on it to enter the selection.
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Media like DVD or Blu-ray that has 6.1 or 7.1 channel audio has separate, or often referred to as "discrete" or "matrixed" audio intended for playback through surround rear speakers, depending on the music or movie. If your media is encoded for 5.1, then there will be no audio sent to these speakers. However, with the different modes of on-board digital processing of this receiver you can still have audio through these speakers.

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Best thing to do is to put the unit in 5 channel or 7 channel mode. That will send left ch information to the front left and rear left speakers ( both will get the same information). Ditto with the right channel. The center channel will get centre channel information.

If all the speakers work, go out and rent TOP GUN. ( yes its old), BUT there are a few extreme scenes , one of which is the elevator scene, where the camera changes perspective and suddenly you hear the elevator doors close BEHIND you through only the surround speakers ( have the unit in surround mode....NOT 5 or 7 ch mode ). If this works ok, then you have no problems.

Remember, surround sound only produces information in the rear channels when the information is there. To check out the digital and DTS decoders, get an action flick. If you can, get a remote too, because that will unlock many features about the receiver that you cant get to with the front panel controls. Also go to yamaha and download the owners manual ( its free !!).....that should get you going.....

best of luck...

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I eventually fixed this by connecting the rear speakers to the Surround L/R terminals and then, via the manual setup menu, set rear surround = NONE. This causes the amp to route the rear-surround signals to the Surround L/R terminals. The auto-configure then completed successfully.

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