Question about Yamaha RX-V661 Receiver

4 Answers

Receiver is shutting down.....

I have a Yamaha V663 connected to Cambridge Soundworks M60 in the front (left and right) with a Cambridge Soundworks Center (MC 400). The rears are Cambridge Soundworks Ensemble III and the Sub is a Klipsch Synergy 12". At various times during a movie, the receiver will cut out and I will get an error message CK SP WIRE. I have checked the connections and there are no wires touching. At the input I am using banana clips and at the speakers I just have the wire tightened down traditionally. I have even replaced the speaker wire and currently am using Monster XP NW Compact Precision Strandad High Resolution. I have also tried the auto set up functionality but I cannot get past the test of the front left speaker as I get an error message E-1: NO FRONT SP. So, I have changed the speaker out replacing the left with the right to see if this was a speaker issue. The movies I have been having trouble with are Blu Ray being played with a PS 3 connected via HDMI. Not sure if that matters at all. I have also checked to make sure the speaker impedance is set to 8 ohms as this is the what is printed on the back of the speakers. I believe I have tried just about everything in the manual and still cannot seem to overcome this issue.

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  • jshweissman Feb 21, 2009

    Thank you...I have checked the wire and replaced it to just about every speaker. I had initially thought that some of the wire was not heavy enough, so I used a ticker gauge. The problem continues....

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4 Answers

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  • Master
  • 15,935 Answers

I would venture to say that perhaps your speakers are "self-protecting" by opening their respective relays. Possibly because of a previous heavy load and the reciever is seeing this as an open circuit, thus CHK SPK WIRE error.
Replacing the relay is your fix.
Standard procedure to any tech - and under $50 fix.

However, that error is usually a ground loop sensor, and is indicative of a grounded speaker wire. Either a fine strand touching the chassis at the back of the unit, or a blown speaker coil.

Use an Ohm meter and check the resistence and continuity to be sure. And triple check ALL speaker wires (especially at the rear of the reciever).. I would also suggest disconnectin ALL speakers and re-trying the left WITHOUT the banana plugs. Just use raw speaker wire.

If after these tests, you still have no output on the left front - a professional repair will be required.

Thanks for using FixYa - a FixYa rating is appreciated!!

Posted on Feb 21, 2009

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  • Master
  • 564 Answers

Hi,
1. Make sure all of your HDMI connections are secure.
2. What remote do you use? Try watching a movie and put
the remote in another room. Sometimes remotes can emit erroneous commands if they are malfunctioning or if the batteries are low.
3. Cover up the sensor on the receiver while you are 
watching a movie. See if it still shuts off. I have seen 
other devices like “Alarm sensors” actually turn components  on or off.
4. Make sure the power strip is not malfunctioning. 
Try plugging it directly into the wall to find out if that is problem. Buy a new power strip if it is.
5. Make sure the “advanced dynamic range 
 compression” is turned off. It can increase  or decrease the volume level.

Reply back and I can give you more information/instruction.

Hope this Helps, Please Rate My Response! Thanks!
PREM

Posted on Feb 21, 2009

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  • Master
  • 6,966 Answers

Hi and welcome to FixYa,

The Yamaha displays such an error message not only because the speakers wires may be touching but because the coil/windings of the speaker themselves may be rubbing against the magnet reducing their specified impedance of 8 ohms further down.

There is a way to test which of the speaker is erring:

  • connect an analog continuity tester (VOM) set to XI to the speaker wires. Measure the resistance which should be 8 ohms as you described. Move the cone, push the speaker playing the travel while noting the meter. If the meter changes even just a bit, the coil is grounding to the magnet at certain distance/times;
  • replace the speakers one at a time by a spare known good speaker;
  • wire a 4.7 ohm 5 watt ceramic resistor in series with the speaker wire, one at a time. The idea is to increase the resistance above 8 ohms. Test again until erring speaker is determined.
Good luck and thank you for using FixYa.

Posted on Feb 21, 2009

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  • Master
  • 2,110 Answers

Check the speaker wire that must be broken in between...

Posted on Feb 21, 2009

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First, I have to compliment you on a thorough and comprehensive problem description and an apparent sense of how to troubleshoot. We're halfway there already.

Your Blu-Ray / PS 3 statement is intriguing but with the E-1 code that absolves it as the problem.

You have two opposing symptoms: the live failure says you have a short while the test mode implies an open circuit. We have to isolate everything and see if it moves to another channel.

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I'm wary of a failcode that doesn't identify which of a pair is failing, so I 'd like to see ALL NEW speaker hardware and connections in place to avoid the pitfall of swapping the L & R with each other and having one of them be the problem without changing the symptom.

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