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Old 06-12-2015, 11:19 AM
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goldar goldar is offline
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Default Comcast

I wasn't sure where to post this, but I'm experiencing some noise coming through the speakers when the Comcast box is plugged into the HDMI input on the Oppo blu ray player. I need to double check the grounding on the service entrance for the cable line, but I also suspect that the cable box itself is just a noisy source. Actually, now that I remember it, I think the hum remained even if I disconnected the cable input on the Comcast box. Has anyone else had this issue?

Apologies if the topic is covered somewhere in another thread.

Thanks,
Howard
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Old 06-12-2015, 02:42 PM
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Howard.......Many cable and satellite noise issues have been solved with this device.

http://www.amazon.com/Viewsonics-VSI...e+noise+filter


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Old 06-13-2015, 09:52 AM
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Howard,
Does the hum vary with volume? Or is it there all the time, at a low level?
If you pull the cable feed to the Comcast box and you've still got hum, try putting a common mode choke on the HDMI cable.

Tom
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Old 06-15-2015, 01:02 AM
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Thanks for the suggestions, let me investigate them and I'll let you know the results. Thanks again!
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Theater/Listening Room:
Oppo BDP-105D [Variable audio out directly to amps]; Sonos Connect; McIntosh MC7106 [Bridged to 3 channels for L/C/R]; McIntosh MC7104 [Surrounds and Rears]; McIntosh XCS350 [Center]; McIntosh XLS340 [Front L/R]; McIntosh XLS320 [Surround L/R] McIntosh HT-3 [Rear L/R]; Pair of McIntosh XLS112 subs; RGPC 1200; Sony VPL-HW40ES; Xbox 360
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Old 06-15-2015, 01:04 AM
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Quote:
Originally Posted by W9TR View Post
Howard,
Does the hum vary with volume? Or is it there all the time, at a low level?
If you pull the cable feed to the Comcast box and you've still got hum, try putting a common mode choke on the HDMI cable.

Tom
The hum doesn't vary with volume, it's there all the time at a low level. I'll give both this and the isolator a try. Thanks!
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Theater/Listening Room:
Oppo BDP-105D [Variable audio out directly to amps]; Sonos Connect; McIntosh MC7106 [Bridged to 3 channels for L/C/R]; McIntosh MC7104 [Surrounds and Rears]; McIntosh XCS350 [Center]; McIntosh XLS340 [Front L/R]; McIntosh XLS320 [Surround L/R] McIntosh HT-3 [Rear L/R]; Pair of McIntosh XLS112 subs; RGPC 1200; Sony VPL-HW40ES; Xbox 360

Last edited by goldar; 06-15-2015 at 08:02 AM.
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Old 06-17-2015, 11:47 AM
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Quote:
Originally Posted by jdandy View Post
Howard.......Many cable and satellite noise issues have been solved with this device.

Amazon.com: Viewsonics VSIS-EU Cable TV Ground Loop Isolator: Electronics


Dan's suggestion worked for me !
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Last edited by Doug Lax; 08-27-2015 at 07:33 PM.
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  #7  
Old 08-17-2016, 05:39 PM
spencem spencem is offline
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I had the same problem with Comcast and it was related to different grounds on the cable feed vs. the house electrical, amounting to several volts. I "fixed" it by going to DirectTV satellite. Better resolution, better programming, less expensive. What's not to like?
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Old 08-18-2016, 09:36 AM
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Quote:
Originally Posted by jdandy View Post
Howard.......Many cable and satellite noise issues have been solved with this device.

http://www.amazon.com/Viewsonics-VSI...e+noise+filter


I'll be picking up one of those pronto. I had always assumed there was no way around the issue.

Thanks for the tip Dan.
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Last edited by 62caddy; 08-18-2016 at 03:42 PM.
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Old 08-27-2016, 06:39 PM
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I cancelled my Comcast service after 15 yrs today. I am officially cord free as of today
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  #10  
Old 08-27-2016, 06:55 PM
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Quote:
Originally Posted by ngc4900 View Post
I cancelled my Comcast service after 15 yrs today. I am officially cord free as of today
Interesting. What do you use for Internet?
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