Question about Philips FR975 Receiver

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When the volume is turned above 10 my surround sound receiver shuts off. model FR975

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Check to see if any of the copper in the speaker wires are exposed and touching at the receiver and speakers.(This can cause this to happen if the wires are touching)
Could also be a resistor over heating

Posted on Feb 04, 2009

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That can be because of a shorted speaker, or if you have connected low impedance speakers you can get the same problem.

Posted on Feb 04, 2009

  • Ginko
    Ginko Feb 04, 2009

    If your amp is an FR975 it will work with speakers >6 ohms.

    Check your speakers impedance, if it is ok, then you have a bad speaker, replace the wirings, do the job properly, ensure that wires are well insulated and that there are no shorts.
    If you still get the problem replace the speakers.
    Using the system with this problem can damage the amp.


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Hi,
Its problem of one of speaker that is mismatched with Amp Impedance. Please check removing one by one speaker to find what speaker is giving problem.

Posted on Feb 04, 2009

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Any of the speaker wires touching? There is a safety feature on your reciever so it does not blow.

Let me know.

Posted on Feb 04, 2009

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Just the settings problem.reset the settings to default settings and it will be back to normal.

Posted on Feb 04, 2009

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2 Answers

I set the volume to 40. After a little while the volume starts dropping down. If you do not turn the volume back up the volume will eventually go to zero all by it self and turn off the system.


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Jan 06, 2016 | Audio Players & Recorders

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Receiver when turned on is At 25 for volume the clicks and turns off. You can turn it on and turn down the volume so it will not shut off. However, it does not appear to play in surround sound DD or...


You have two different issues here which may be related (or not). Let me address them as separate issues:

1) If the unit shuts down only at high volumes, then either it is heating up (not likely) or there is some DC voltage getting to the final amplification stage. This will trigger the protection circuit which will shutdown the receiver. See the link for more info about protect mode in general.
( http://www.fixya.com/support/r5390728-protector_means )

2) The lack of surround would suggest that the unit is stuck in bypass mode or that the digital surround processing section is not working. Usually when this happens, any attempt to use a surround mode will result in no sound at all or very weak distorted sound. If you are getting sound at normal levels, then I would suspect that the main CPU is not telling the surround section to work. This can be a power suply problem, a CPU problem or even within the processing board itself. Without seeing waveforms within the receiver, I can't tell for sure.

The bottom line is that further investigation is needed. I would recommend that you take this to a shop and request a detailed repair estimate, Armed with that, we should be able to guide you through the repair or at least, provide more details.

Please keep us posted,

Thanks,
Dan

Jun 17, 2011 | Onkyo TX-DS595 Receiver

1 Answer

Receiver shuts off when volume raised above 10


A fuse breaker or resetting electronic componet device attaced to the audio receiver protects the amp & speakers for destruction! The quality of the amp ,spkers& spks. wires help on choosing for protection shut downs! Of course at 10 volume you risk all of the amp in the receiver , buy a higher quality brand reciever ,intergrated amp, single amp . BE CAREFUL AT THE HIGHER VOLUME RATINGS YOU RISK HEARING DAMAGE! FOR REAL!

Feb 04, 2009 | Philips FR975 Receiver

1 Answer

I have a Vizio 42' and a cable box and there's a constant humming


I think I had the same problem. This is how I fixed it.

I have my vizio 42 hooked up to a Harmon Kardon surround sound, and the digital cable box. Essentially, I can adjust the volume 3 ways - through the tv, cable box or av receiver. The humming sound happens when you have the volume maxed out on the av receiver and not the cable box.

For example, the sound level on my Harmon Kardon goes from -10 (lowest) to 10 (loudest), with 0 being the middle ground. The buzzing was happening when the Harmon Kardon was set to 10, and I was using the cable box volume to adjust the sound. To fix it, I turned down the volume on my receiver to 0, which may be about 50% max volume of the receiver. Then, I switched devices and used the volume on my cable box. This got rid of the static I was getting. Hope that helps.

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1 Answer

Technics SA-DX950 surround sound problems


The most likely culprit here is the output protection relay. The contacts are a little corroded and the higher volume "jumps the gap" temporarily "cleaning" the contacts. The relay should be changed. I don't have the manual with me, but the following relays are in the unit. One of them is the speaker relay:

Part # Cost
RSY0054-C $12.63
RSY0040M-0 $ 5.89
K6B2AHA00014 $ 8.14


Dan

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Try turning up the sub output on the onkyo.

Aug 05, 2008 | Velodyne CHT-10 Subwoofer

2 Answers

How to turn off standby mode


Try this:

On the top of your remote near the power buttons there are a series of buttons that have names under them such as "TV" and "DVD". Press and hold one of those buttons for about two seconds.

Jul 17, 2008 | Philips FR975 Receiver

1 Answer

Volume on surround sound speakers not working. Sound coming out of speakers but volume when turned to maximum is very low. Please help.


Most receivers you can adjust the different chanel levels. If you refer to the manual on adjusting chanel volumes in surround sound mode.

May 26, 2008 | Audio Players & Recorders

1 Answer

JVC Surround Sound System


The problem on your sub is your speaker is faulty the end of the speaker coil is burnt so at a certain volume it`s makes a short .I hope that would solve your problem:)

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