Hum noise on Onkyo TX-SR705!!! - Blu-ray Forum

titogap · 06-10-2008, 12:51 PM

Yes, is that normal? I can hear from my spot an unpleasant noise. What a surprise! DVR? Nooo,PS3? Nooo, Onkyo? Yes. What? I begin to love my 705 and what is that. Is that normal?
Help, please?

Beta Man · 06-10-2008, 01:11 PM

I can tell you that "no" it's not normal....

I'd guess a bad Amp, but that's just a guess. That's if it's coming from the actually AVR, and not a speaker.

titogap · 06-10-2008, 03:32 PM

Yes, it's coming from the receiver and it's very loud. I set to no volume and you can hear it!!!
I will contact with my seller right now.
Thank's Beta Man.

Beta Man · 06-10-2008, 03:41 PM

How much clearance above, and behind, does it have to breath????

titogap · 06-10-2008, 05:42 PM

mmm, about two and a half inches...but behind has enough space. Maybe above not.

gearyt · 06-10-2008, 06:08 PM

sounds like the receiver tanked...

remove all inputs then listen

my best guess is that the power supply went south
JUST to be sure, move the amp to another room and plug it in
still have the hum ???? = bad receiver.
no hum ??? maybe broken wire in recepticle

TENSE · 06-10-2008, 06:13 PM

OUCH..!!

thats got tu hurt dam winter...!!

Beta Man · 06-10-2008, 06:19 PM

Quote:

Originally Posted by titogap

mmm, about two and a half inches...but behind has enough space. Maybe above not.

yeah, you need to give them at least 6-7 inches I'd say.... and if it's generally "hot" in your place right now... I'd say even more......

Sling · 06-10-2008, 06:21 PM

Quote:

Originally Posted by titogap

Yes, is that normal? I can hear from my spot an unpleasant noise. What a surprise! DVR? Nooo,PS3? Nooo, Onkyo? Yes. What? I begin to love my 705 and what is that. Is that normal?
Help, please?

That sucks.
Did you get extended warranty on it?

un4gvn94538 · 06-10-2008, 06:24 PM

my receiver gets hot during hot days and i use the button combinations to display temp. i also emailed onk to find out what the max temp that the 705 can safely handle and i got.....

Quote:

Thank You for contacting Onkyo USA Product Support.

There is no max temperature, the receivers do run about 80 degrees above the ambient room temperature. You can add a fan at any time or temperature you feel it is needed.
Bob Elder

Y3k Bug · 06-10-2008, 06:35 PM

Okay, now that you've gotten some actual helpful posts in here I won't feel bad about saying "Maybe it's just humming because it doesn't know the words".

Beta Man · 06-10-2008, 06:36 PM

Quote:

Originally Posted by un4gvn94538

my receiver gets hot during hot days and i use the button combinations to display temp. i also emailed onk to find out what the max temp that the 705 can safely handle and i got.....

so they KNOW the thing wasn't built to handle the heat..... basically. On My PS3 in the living room, the fan kicked on HIGH yesterday playing a movie.... so I turned it off.... I'm not burning it up, just to deal with sending it in etc. I took the movie into the bedroom where it was cooler (closer to an AC vent too)

Sling · 06-10-2008, 06:37 PM

Quote:

Originally Posted by Y3k Bug

Okay, now that you've gotten some actual helpful posts in here I won't feel bad about saying "Maybe it's just humming because it doesn't know the words".

lol or it wants popcorn

un4gvn94538 · 06-10-2008, 06:39 PM

Quote:

Originally Posted by Beta Man

so they KNOW the thing wasn't built to handle the heat..... basically. On My PS3 in the living room, the fan kicked on HIGH yesterday playing a movie.... so I turned it off.... I'm not burning it up, just to deal with sending it in etc. I took the movie into the bedroom where it was cooler (closer to an AC vent too)

from wiiki i got ambient temp is almost the same as room temp that is comfortable to humans that goes up to about 75F. 80 degrees above that is pretty damn hot. so i think it can handle heat but not excessive, no component can.

hagar852 · 06-11-2008, 01:12 AM

Quote:

Originally Posted by un4gvn94538

from wiiki i got ambient temp is almost the same as room temp that is comfortable to humans that goes up to about 75F. 80 degrees above that is pretty damn hot. so i think it can handle heat but not excessive, no component can.

Yeah that is extremely high temps if it goes 80 degrees above.. wow.... I can't imagine them designing it to run that hot.. That is very close to the melting temps of the some of those chips...

mdabb · 06-11-2008, 01:23 AM

Have you checked your AC outlets?

mdabb · 06-11-2008, 02:14 AM

DUH! AC my bad

titogap · 06-11-2008, 12:51 PM

Yesterday, I contact the customer service and they send me another new receiver, I only have to return the bad receiver. My lucky day!

Barnum · 06-11-2008, 01:14 PM

Does the hum sound like a ground fault. If so you may have a bad cable or one that is shorting to ground. That will cause a very loud hum. Your phone will do the same thing on rainy days if there is a cable ground fault.

titogap · 06-11-2008, 03:21 PM

Exactly! apparently the receiver comes with that problem.

06-10-2008, 12:51 PM	#1
titogap Member Member since:Jun 2008 Location:Puerto Rico Home Theater Gallery:25 Blu-ray collection:44 Blu-ray reviews:2	Hum noise on Onkyo TX-SR705!!! Yes, is that normal? I can hear from my spot an unpleasant noise. What a surprise! DVR? Nooo,PS3? Nooo, Onkyo? Yes. What? I begin to love my 705 and what is that. Is that normal? Help, please?

06-11-2008, 01:23 AM	#16
mdabb Power Member Member since:Jan 2008 Trading Score:1	Have you checked your AC outlets? Last edited by mdabb; 06-11-2008 at 02:44 AM. Reason: dyslexia kicking in!!!!!!!!!!

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06-10-2008, 01:11 PM	#2
Beta Man Moderator Top contributor Member since:Jan 2008 Location:Juuuuuuuust A Bit Outside.... Home Theater Gallery:4 Blu-ray collection:268 Blu-ray reviews: 18 Trading Score:25	I can tell you that "no" it's not normal.... I'd guess a bad Amp, but that's just a guess. That's if it's coming from the actually AVR, and not a speaker.

06-10-2008, 03:32 PM	#3
titogap Member Member since:Jun 2008 Location:Puerto Rico Home Theater Gallery:25 Blu-ray collection:44 Blu-ray reviews:2	Yes, it's coming from the receiver and it's very loud. I set to no volume and you can hear it!!! I will contact with my seller right now. Thank's Beta Man.

06-10-2008, 03:41 PM	#4
Beta Man Moderator Top contributor Member since:Jan 2008 Location:Juuuuuuuust A Bit Outside.... Home Theater Gallery:4 Blu-ray collection:268 Blu-ray reviews: 18 Trading Score:25	How much clearance above, and behind, does it have to breath????

06-10-2008, 05:42 PM	#5
titogap Member Member since:Jun 2008 Location:Puerto Rico Home Theater Gallery:25 Blu-ray collection:44 Blu-ray reviews:2	mmm, about two and a half inches...but behind has enough space. Maybe above not.

06-10-2008, 06:08 PM	#6
gearyt Power Member Member since:Aug 2007 Location:Henderson, NV Home Theater Gallery:8 Blu-ray collection:33	sounds like the receiver tanked... remove all inputs then listen my best guess is that the power supply went south JUST to be sure, move the amp to another room and plug it in still have the hum ???? = bad receiver. no hum ??? maybe broken wire in recepticle

06-10-2008, 06:13 PM	#7
TENSE Senior Member Member since:Mar 2008 Location:Los Ageles, Ca Home Theater Gallery:10	OUCH..!! thats got tu hurt dam winter...!!

06-10-2008, 06:35 PM	#11
Y3k Bug Senior Member Member since:Jun 2007 Location:Arizona Blu-ray collection:666	Okay, now that you've gotten some actual helpful posts in here I won't feel bad about saying "Maybe it's just humming because it doesn't know the words".

06-11-2008, 02:14 AM	#17
mdabb Power Member Member since:Jan 2008 Trading Score:1	DUH! AC my bad

06-11-2008, 12:51 PM	#18
titogap Member Member since:Jun 2008 Location:Puerto Rico Home Theater Gallery:25 Blu-ray collection:44 Blu-ray reviews:2	Yesterday, I contact the customer service and they send me another new receiver, I only have to return the bad receiver. My lucky day!

06-11-2008, 01:14 PM	#19
Barnum Senior Member Member since:Nov 2007 Trading Score:3	Does the hum sound like a ground fault. If so you may have a bad cable or one that is shorting to ground. That will cause a very loud hum. Your phone will do the same thing on rainy days if there is a cable ground fault.

06-11-2008, 03:21 PM	#20
titogap Member Member since:Jun 2008 Location:Puerto Rico Home Theater Gallery:25 Blu-ray collection:44 Blu-ray reviews:2	Exactly! apparently the receiver comes with that problem.

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