Question about Technics SA-DA10N 5.1 Channels Receiver

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No left or center channel sound.

The left and center channels have stopped producing sound. It started with a sound that was similair to one you would hear if your radio station wasn't tuned correctly then they stopped producing sound. The right channels front and rear work great. I do have the speakers wired through a sub woofer. The channels will occassionaly let some sound through but it is distorted and last only for a few seconds. Have checked connections for tightness and have turned unit off for several minutes which did not cure anything.

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6 Suggested Answers

SOURCE: Technics SU-G91 Left channel bad

Did you ever find the solution to the left channel issue? I have the same problem with mine.

Posted on Jan 23, 2008

  • 1 Answer

SOURCE: Technics SA-AX720

Look for lossing solders points or bad conections. Start to look on those components of hi wattage and components to get hot alot, those are the most common to have weak solders spots.
Also some equipment need to be clean because the dust can make problems.
good luk.

Posted on Feb 18, 2008

  • 3 Answers

SOURCE: No Surround and Multiple Inputs Play at the Same Time

Thank you so much!!!

That completely fixed mine!

Thank you thank you thank you!!!

Posted on Mar 10, 2008

SOURCE: Can't hear any sound from the large left or right speakers

Tape monitor switched in??

Posted on May 28, 2008

  • 21 Answers

SOURCE: A and B channels both have left speakers out.

Use a multitester to check the amps then you can find which amp it is.Under the cover youll see two boards on a aluinum plate.

Posted on Oct 27, 2009

  • 2080 Answers

SOURCE: Technics Sa-dx930 receiver. Suddenly sound stopped,came

As you suspected, the normal cause for this is the speaker wires short circuiting somewhere and causing the amplifier to cut out momentarily to prevent damage.

If there were no bare wires touching each other or touching adjacent speaker connections on the back of the stereo, then you should also check the other ends where the speaker wires connect to the speakers. Again make sure no stray wires will contact the other wire or terminal.

It is unlikely to be a power supply fuse or a loose power supply cable since the unit would likely shut down completely or at least switch to standby.

It's possible that a power transistor or other component in the amplifier circuit has a cold solder joint or is just failing, but if so then it is a significant disassembly and troubleshooting task best left for a technician.

Hopefully the system just needs to be reset.

Well here is the link to the main Technics Support page for your set in case you did not have it already:

Here is the link to the Operating Manual (see page 41 for overload reset instructions): Instructions-_-Model-SA-DX930-_-SA-DX930 Operating Instructions (English)

Basically it says to unplug the power cable for a few minutes and then plug it back in.

Or press and hold down the HELP / RESET button for about 2 seconds until the word RESET appears on the display.

Good luck and I hope this was at least a little helpful.

Please comment back here if you need any further assistance.
Take care.

Posted on Feb 13, 2011

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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.....

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The info is in the "SET MENU" section of the manual, Pages 35-38. Should solve the issue for "almccrum" above as well.

If you don't have your manual it can be downloaded here:

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