I have aony receiver STR AV-880 serial # 803492 left side speaker snowy sound on A and B setting help please

check the speaker connection,check the speaker resistance,if it found ok.then open the av receiver top panel and check nearer component of left speaker connection.check the out put power ic .

hi pawanh75,

thanks in advance for a very informative setup that you have.

Here are some of possible mods , only if you like and can DIY

( or have someone to help you )


• Using a 6 ohms impedance for an 8 ohm impedance amp clearly

denotes that it heats up the output stages.

(please forgive my very technical words)


• One way to lessen the heat is to install a blower .

Use a 220V blower on top of the receiver.

( air should be in going up direction ).


• Before I proceed further please indicate if having the speaker

connected and having a zero volume , and just letting the receiver

in an "On" state deliverately produce heat on the receiver, or just

when the volume is at medium to high level.


If it s running hot at zero level with speaker , please post.

If it is running hot even without speaker, post also


• It may also helps , if you have a powered subwoofer ( for the low's),

and set settings on your receiver to "small"


Let me know what you find to help you further.

Sorry for a dump question ,
have you changed the distorted Right speakers to LEFT to verify if speaker is OK ?
First try with just STEREO ,not on Surround and please contact me for further solution possibility..
Take care..

If you have checked the speakers and wiring, the right channel has a audio driver or output problem, which explains the low volume, static, and distortion. A service technician will be required to fix the receiver so it will balance the left side.

There's a Speakers OFF/A/B/A+B button on the upper left front panel. Press it a few times and watch the display.

There's a button that turns the speakers OFF right above the headphone jack.

Get the manual: retrevo.com

make sure the FM antenna is connected and in a good place then check to see if the A-B speaker selector is selected properly.check to see that the sound field is set properly, My 800 allows for several different options and if your speaker wires are reversed or not in the correct position front left at front left etc it will not send the signal to those speakers. try using the TEST TONE feature if you have one it will send a signal to each speaker in sequence (LF< C< RF<in order) it will go all the way around to see if they are connected properly, that way you can tell if they are connected at all or in the wrong spot on the back interface. I dont know if that is what you meant by AUTO CAL, but that is a seperate feature when you use the connected mic to determine range, height and distance to the position in the room you are most likely to be seated for optimal sound.

Sounds like faulty psu (pwer suply unit) Amp is going into protection mode. Disconnected all speaker and av wires (only power) turn up volume and see if it stays on. If not psu, sounboard or volume function faulty. If on, connect one speaker L or R. Go to tuner mode to tuned radio station an listen for sounds. If on, connect speakers and av cables one by one and test each one on its own until amp switches off, Investigate from there were problem is. Make sure speakerwires is not shorting out.

first turn the actual volume up on that channel on the reciver then make sure your speaker wires in the rear are using the same lenght each

The headphone is tapped before the final stage of the amp, so knowing that those work properly helps to isolate the problem. I think that this model uses an IC for the voltage amp section prior to the final amp stage. That being said, the IC is probably an UPC2598 (if memory serves). I'll confirm tonight. Try resoldering any connections that appear to be grainy or have rings. Let me know what you find.
Dan