Huzzing in the channel
NeilGabriel
Posts: 1,487
I hooked up a new to me B&K avr 202 tonight. Everything worked fine until I turned it off (sleep mode). I then noticed a fairly audible humming/buzzing in front left channel that did not stop. When I powered it totally down, it stopped. When powered up, it stopped. I also noticed that all speaker outputs seem to have a little current on the sleep mode by tapping the positive speaker wire to the terminal and getting a little sound out of each speaker. However, only the front left has the humming. I moved some cords around, switched power outlets. Any useful thoughts will be greatly appreciated.
Mike
Mike
Post edited by NeilGabriel on
Comments
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The only thing might be to flip the power cord but you said its new so i dont think you could do that. Ummmm... does it have a ground screw in the back so you can ground all of your equipment together if it does that would be something to try. i hope i have help a little not having any exp. with B&K products.If life had more tubes it would be a lot smoother.
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I think you'd better plan on calling B&K on Monday.Political Correctness'.........defined
"A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."
President of Club Polk -
I think you'd better plan on calling B&K on Monday.
But you guys are my tech support! I've tried all the normal stuff. Found a posting on another forum about somebody having similar problem and B&K fixed it no charge...said it was a leaking capacitor. -
But you said new. LOL We could ask you to open it up and look inside but I think that messes with the warranty. LOL
engtazengtaz
I love how music can brighten up a bad day. -
new to me....it's about 4+ yrs old....I just got it off v-gon...and I trust the seller that he did not have the issue.....in fact, when I first hooked it up and turned the main power on, then put it in sleep, I don't recall the hum. I think it started after I had played a movie through and put it back in sleep mode. Now, it hums in the front left whenever it is in sleep.
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what was that... hussies in one channel?
Seriously... a good descriptor, that was. -
Sounds like it could be a ground loop or bad cable.Did you try switching left and right channel I/C's ?HT SYSTEM-
Sony 850c 4k
Pioneer elite vhx 21
Sony 4k BRP
SVS SB-2000
Polk Sig. 20's
Polk FX500 surrounds
Cables-
Acoustic zen Satori speaker cables
Acoustic zen Matrix 2 IC's
Wireworld eclipse 7 ic's
Audio metallurgy ga-o digital cable
Kitchen
Sonos zp90
Grant Fidelity tube dac
B&k 1420
lsi 9's -
For what it's worth, there is also a good sized popping in the same channel when the unit turns off and on. I connected the speaker to all channels, and only the front left is producing this problem. Sounds like I will need to send it in. Any possibility that a wire on the output got loose in shipment?