Question about Yamaha RX-770

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It only plays sound in pure direct mode - Yamaha RX-770

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Check if the Jumper at the back is in place its between the Pre out and the mains. I found this out by accident when I was fixing the Selector, I took all the Screws at the back and also removed the the Jumper.After fixing the selector I put back all the screws with out the jumpers, When I was done i Tested it, it only plays in Direct mode. When I put back the two jumpers it worked again.

Posted on Feb 04, 2010

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Posted on Jan 02, 2017

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SOURCE: yamaha stereo only works on Pure Direct

It sounds to me like an audio enhancement filter is malfunctioning. The pure direct on / off is a sound filter to alter the sound performance of the receiver. There is a rare possibility that there is something wrong with one of your speakers- causing certain circuits in the receiver to malfunction. A way to check for this is to connect only one speaker and an audio source. test each channel first(without pure direct) by connecting the speaker to a channel and then disconnecting it, and connecting it to a different channel repetedly, until you have gone through all of the channels. If you really wanted to pinpoint such an anomaly, then you would need to do it with every speaker through all of the channels to make cetain that this is not the case. But then again this is not very likely. I would personally just use the mode that seems to work, because something is obviously malfunctioning, or possibly burned out. And repairing it is most likely costly! I hope that you can get something out of my answer! sorry! Good Luck!

Posted on Jun 11, 2009

  • 4 Answers

SOURCE: Getting out of Pure Direct mode

One way to solve that is to use your remote. There are modes i the same area - direct mode is one of them. Chose one of the others next to it.

Posted on Mar 10, 2008

  • 151 Answers

SOURCE: Sound is working only in mode PURE DIRECT

TRY PUTTING DVD PLAYERINTO ANOTHER DIGITAL IN PUT, ALSO CHECK DVD OUT PUT IS STILL BITSTREAM.
IFF YOU STILL HAVE A PROBLEM CHANGE THE CABLE,AND IFF IT STILL FAILS 2 WORK TAKE AMP 2 YOUR DEALER.

HOPE THIS HELPS.

CABLE GUY.

Posted on May 20, 2008

ryancsmith
  • 62 Answers

SOURCE: no sound in listening modes except pure audio

Check the input mode on the reciever so that they are set for dual, rather than just digital or analog. It might be set for analog and your using a digital optical in cable. Also make sure DTS mode is turned off, unless your watching a DVD that is dts enabled.

Posted on Aug 06, 2009

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Put your unit in Direct Mode or Pure Audio Mode. If you now have audio in your front right and left channels only then you have a problem with your DSP circuit. If you do not have audio at all, then check your + and - 15 or 12 volt lines. If the voltage is missing then you probably have a bad regulator.

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No sound in listening modes except pure audio and direct. Was working fine and just stopped one day. Connections are all good. Surround sound seems to be broken?


Check the input mode on the reciever so that they are set for dual, rather than just digital or analog. It might be set for analog and your using a digital optical in cable. Also make sure DTS mode is turned off, unless your watching a DVD that is dts enabled.

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1 Answer

Yamaha stereo only works on Pure Direct


It sounds to me like an audio enhancement filter is malfunctioning. The pure direct on / off is a sound filter to alter the sound performance of the receiver. There is a rare possibility that there is something wrong with one of your speakers- causing certain circuits in the receiver to malfunction. A way to check for this is to connect only one speaker and an audio source. test each channel first(without pure direct) by connecting the speaker to a channel and then disconnecting it, and connecting it to a different channel repetedly, until you have gone through all of the channels. If you really wanted to pinpoint such an anomaly, then you would need to do it with every speaker through all of the channels to make cetain that this is not the case. But then again this is not very likely. I would personally just use the mode that seems to work, because something is obviously malfunctioning, or possibly burned out. And repairing it is most likely costly! I hope that you can get something out of my answer! sorry! Good Luck!

Jun 11, 2009 | Audio Players & Recorders

1 Answer

RX-797 no sound output except when "Pure DIrect" button pushed


Here are some things to check:
Is the loudness control turned off or set to a very low level? If the PURE DIRECT button is turned on with the LOUDNESS control level at 0, you won't hear anything.
Have you removed the jumpers from the PRE Out/MAIN IN jacks? If so, the unit will only perform as a power amplifier.
Is the CD DIRECT AMP turned on?
If so, the unit will only make sound if the PURE DIRECT button is on.
Check the CD DIRECT AMP and the PURE DIRECT buttons are both turned off. This should produce sounds. If ti doesn't, check that the A and B buttons are on for their speakers. Both can be on.

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1 Answer

No sound other than from direct stereo or pure direct. Denon AVR 2808


You can try this reset precedure below, but it sounds like you may have a DSP board problem. This is a new model of Denon, it should still be under Denon's warranrty, it has a 2 year warranty. If this does not help, you need to take it in to be serviced. If it is not under warranty, you will not like the cost of the repair. A new DSP board usualy cost about $300 and then you must pay for the labor. It is not cheap. This reset procedure has been know to work some minor miracles, lets hope it works one for you.

1. Switch off the unit.
2. Hold the following STANDARD button and DSP SIMULATION
button, and switch on the unit.
3. Check that the entire display is flashing with an interval of
about 1 second, and release your fingers from the 2 buttons
and the microprocessor will be initialized.
Note:��If step 3 does not work, start over from step 1.
�� All user settings will be lost and this factory setting
will be recovered when this initialization mode.
So make sure to memorize your setting for restoring
after the initialization.

Jul 12, 2008 | Audio Players & Recorders

1 Answer

Sound is working only in mode PURE DIRECT


TRY PUTTING DVD PLAYERINTO ANOTHER DIGITAL IN PUT, ALSO CHECK DVD OUT PUT IS STILL BITSTREAM.
IFF YOU STILL HAVE A PROBLEM CHANGE THE CABLE,AND IFF IT STILL FAILS 2 WORK TAKE AMP 2 YOUR DEALER.

HOPE THIS HELPS.

CABLE GUY.

May 19, 2008 | Denon AVR-4802 Receiver

1 Answer

Getting out of Pure Direct mode


One way to solve that is to use your remote. There are modes i the same area - direct mode is one of them. Chose one of the others next to it.

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