Reply
 
Thread Tools Display Modes
Old 07-02-2015, 03:34 PM   #1
Senior Member
 
jeff64's Avatar
 
Join Date: Mar 2015
Location: N. Illinois
Posts: 908
buzz in surround sound with tv on irv66/ toshiba

I get a buzz or hum in the surround sound when listening to the tv at around volume level 20 or above that with the irv66 system. Do you suppose going to the OIS(optical cable) connection will cure it. Anybody else experience this? I recognize there have been many posts on the minimum volume levels on the radio section.



2016 Flagstaff 27VRL
__________________

__________________
jeff64 is offline   Reply With Quote
Old 07-02-2015, 03:35 PM   #2
Senior Member
 
Join Date: Feb 2014
Location: Port Orange Fl
Posts: 554
Are you using any LED bulbs? Some of the cheaper ones will cause interference noise in the audio system.
__________________

__________________
Kevin & Judy is offline   Reply With Quote
Old 07-02-2015, 03:42 PM   #3
Senior Member
 
jeff64's Avatar
 
Join Date: Mar 2015
Location: N. Illinois
Posts: 908
All the new trailers are 99% leds from FR in both 2015 and 2016 or at least on the Flagstaff/Rockwoods. Noise increases proportionately to volume. Above 20 is really annoying and not that loud.
__________________
jeff64 is offline   Reply With Quote
Old 07-02-2015, 04:03 PM   #4
Senior Member
 
Crockett's Avatar
 
Join Date: Feb 2015
Posts: 833
I dont know if that is an RF type disturbance or if getting the power directly at the battery would help?...anybody?
__________________
Crockett is offline   Reply With Quote
Old 07-02-2015, 04:25 PM   #5
Senior Member
 
Mikegjax's Avatar
 
Join Date: Aug 2013
Location: Orange Park Fl.
Posts: 1,326
Quote:
Originally Posted by jeff64 View Post
I get a buzz or hum in the surround sound when listening to the tv at around volume level 20 or above that with the irv66 system. Do you suppose going to the OIS(optical cable) connection will cure it. Anybody else experience this? I recognize there have been many posts on the minimum volume levels on the radio section.



2016 Flagstaff 27VRL
You may need a ground loop isolator. There are old treads on this subject.
__________________
2014 Solera 24R
USN Retired
Mikegjax is offline   Reply With Quote
Old 07-03-2015, 02:40 PM   #6
Senior Member
 
BobHanke's Avatar
 
Join Date: Sep 2013
Location: West Des Moines, IA
Posts: 270
Check your audio connections to be sure all are firmly in. If the system can be run on battery power, that would eliminate 60 cycle interference as a likely cause. Does it make a difference if on outside shore power or if running through an inverter? If this is a older rig, check all bass producing raw speakers and subwoofers for cone separation.
__________________
BobHanke is offline   Reply With Quote
Old 07-03-2015, 02:57 PM   #7
Senior Member
 
B and B's Avatar
 
Join Date: Jun 2013
Location: Wilmot Twp, Ontario, Canada
Posts: 8,604
Is your TV one with the modification for audio out? They would have supplied a ground loop isolator to place between the TV and the IRV unit. My Rockwood TT had one to prevent a ground loop.

Click image for larger version

Name:	$_12.JPG
Views:	84
Size:	13.5 KB
ID:	81930
__________________
B and B is offline   Reply With Quote
Old 07-03-2015, 06:54 PM   #8
Retired Techie
 
Join Date: Jan 2015
Location: Lowell Mi
Posts: 155
X2 on ground. Isolator if both units are running on 12 volts. It's called a ground loop.
__________________
moligney is offline   Reply With Quote
Old 07-23-2015, 08:11 AM   #9
Senior Member
 
jeff64's Avatar
 
Join Date: Mar 2015
Location: N. Illinois
Posts: 908
Quote:
Originally Posted by jeff64 View Post
I get a buzz or hum in the surround sound when listening to the tv at around volume level 20 or above that with the irv66 system. Do you suppose going to the OIS(optical cable) connection will cure it. Anybody else experience this? I recognize there have been many posts on the minimum volume levels on the radio section.



2016 Flagstaff 27VRL
Installed OIS cable last night ( since dealer says FR can't get him parts after 4 weeks in the shop). Not a really difficult install, once you pull the iVR66 out of the cabinet. What a rat's nest of wiring behind it. Was able to verify all phono cables were seated and in all the way. A small black plug at the top of the unit is removed to install the OIS.
When you use the OIS cable, the selector button that would normally be at TV AUDIO is set to OIC/OCC ( I believe). You need to turn TV audio down all the way or you get some degree of reverb. Other than that, works perfect, you can get all the volume you want and no background buzz/hum.




2016Flagstaff27VRL
__________________

__________________
jeff64 is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



» Virginia Campgrounds

Reviews provided by




ForestRiverForums.com is not in any way associated with Forest River, Inc. or its associated RV manufacturing divisions.


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 08:44 AM.