Question about Yamaha RX-V870 Receiver

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I have a Yamaha AX-870 amp. The input selector switch is worn and as a result makes poor connections. Can the selector switch be repaired, or preferably replaced? And where might I find a replacement?

Posted by Anonymous on

3 Suggested Answers

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Posted on Jan 02, 2017

robotek
  • 1512 Answers

SOURCE: Input selector on my Yamaha RX-V596 stuck

Hi Dush

Sounds like the processor has locked up in the unit. Try powering it right down from the wall socket for a day to reset, and then retry operation. If that does not work, leave it disconnected for about 10 days to erase backup memory completely and then try again. Good luck. Don't forget to give me a "FixYa" rating if this works. If it doesn't, get back to me in here and we can talk more about it.

regards
Graeme

Posted on Feb 16, 2008

joeguest2
  • 2080 Answers

SOURCE: Can I hook up a

First of all, here is the main ONLINE SUPPORT page for your model:

http://usa.yamaha.com/products/audio-visual/av-receivers-amps/rx/rx-v493_black__u/?mode=model


And here is a direct link to the ONLINE USER'S MANUAL for that model:

http://www2.yamaha.co.jp/manual/pdf/av/english/re/RX-V393.pdf


To view the Support Page or the Owner's Manual with Operating Instructions just use your mouse to click on the link, which is the underlined and highlighted text just above. This will open a new web browser page automatically for you and allow you to view the information at the website indicated and the contents of the Owner's Manual.

You may need ADOBE READER installed on your computer to read PDF documents.
You can download this free at WWW.ADOBE.COM if necessary.
Click on the DOWNLOAD ADOBE READER button on right side of the ADOBE home page when you get there, then follow the onscreen instructions to install the software on your computer.

You should just be able to use the TAPE REC AUDIO OUT (L/R) jacks on the back of the Yamaha 493 unit as your secondary amp's input signal. You might even be able to use the VCR AUDIO OUT (L/R) jacks as well. See page 8 of the manual for a detailed diagram of the rear connections on your set.

I hope that was helpful to you, good luck.

If you choose to rate this solution using the Thumbs Up scale provided, I thank you very much for your time and consideration.

Joe.

Posted on May 25, 2011

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Can't get sound when plug my Lg tv to my Yamaha amp model ax-396


What sockets are you using on the LG TV to connect to the amp?

Having viewed the back of that Yamaha amp, it has no digital inputs, for either coax or optical. Many modern TV's have no RCA audio out connectors. Though people think the component RCA type connectors are these. In fact connecting the amp to them will produce no sound at all.
If the TV has a scart socket you can get a scart to phono out lead and use the audio out from that, providing you are not using the scart socket for a video device. If you are you will need to also buy a scart switching box see image(s) below. These often have RCA audio out sockets on them so you wouldn't need the lead.
Both available on Amazon.
Alternatively you can consider upgrading your amp to one that has digital inputs. Thus getting Dolby Digital, if the TV has HD channels built in.

26171422-zuqi2rjzigevf3s35rbf1d2v-1-0.jpg

26171422-zuqi2rjzigevf3s35rbf1d2v-1-2.jpg

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Greg, It pretty basic hookup,Just hook it up to your speaker terminal on the reciever or amp.To the input of the (Speaker) Selector.

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I have connected PC to Yamaha and to SonyTV all with HDMI cable and when I play movie on my PC I can see the picture on TV but I can`t hear sound. What shoul I check to solve this problem? Thank...


Page 40 of your owners manual....


Rotate the INPUT selector on the front panel

(or set the operation mode selector to AMP

and then press one of the input selector

buttons on the remote control) to select the
desired input source.

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I want to connect YST-Sw1500 sub woofer to the AX-596 amplifier .How can I do the connections .


on ur subwoofer u will see HPF output, connect this output to MAIN IN of ur power amp (first remove jumper between pre-out and main in from ur power amp) connect pre-out of ur power amp to input 2 L&R (Left is also for mono input). the HFP selector switch will cut off 80Hz or 100Hz to the main input depending on the position enabling u to have high frequency sound on your main speakers. connect the speakers to the main output terminal of ur power amp. do not connect speakers on the woofer ouput.
make sure u are using the right impedance speakers. do not switch speaker impedance selector while the unit is on. 

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My A3090 was purchased in 1996 and began to having problems with the input selector around 2006. The first symptom was difficulty finding the proper position for a input selected via the remote and bouncing back and forth many times before stopping-- sometimes in the correct position, other times not. Sometimes the selector would stop in between inputs and that would result in intermittent loss of sound, picture, flickering, etc. Once incorrectly positioned between inputs, even manually turning the knob will not fix the problem-- you must use the remote and select an input at one extreme or the other to reset the indexing.
Recently the problem worsened such that I was motivated to remove the cover and have a look. The selector and motor are soldered components on a small circuit board that appears to be dedicated to just that function. No rotary contacts are visible and the mechanical portion does not look like it can be disassembled without first removing it from the circuit board. The assembly is connected via a wire bundle and ribbon cable to two other circuit boards. I suspect the actual signal switching isn't even done inside the selector component-- it just reports the selector position via the ribbon cable to the main processing board. And it wouldn't surprise me if there aren't any contacts inside the selector that can be cleaned.
Seeing the ribbon cables immediately raised a warning flag because decades ago I saw similar cable connections cause many problems in personal computers. Back then they were very prone to corrosion and connection issues at each end. So I removed and reinserted the ribbon cable on both ends in hopes of improving the connections and that seems to have fixed the problems I was seeing. (Please note: This was done with the receiver power cord unplugged and *very* careful avoidance of any other components inside the receiver-- like the bank of capacitors adjacent to the input selector. I'm not a technician and don't know if any of them still held a charge. This is just an account of what I did and the results I saw, it's not a recommendation.)

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Keep us posted.
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go into your amp settings menu then to speaker settings,set zone 2 on and main on, turn up the volume for zone 2 about half way then connect phono cables from zone 2 pre out to a input on the external amp (eg cd input )
never use the phono input this is for turntables,connect this amp to your speaker switch/selector then to speakers.

hope this helps

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If your amp is less than 5 years old you maybe able to get it fixed for free at http://www.domgen.com check it out we have all our contents covered. This is better than your normal home insurance. Don't matter you could claim 100 times and never loose out. check it out! Also don't 4get to leave me feedback cheers raverbaby01

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