Want to win a PS4? Go Premium and enter to win our High-Tech Treats giveaway. Enter to Win


HDTV Component Video and WOW service

Posted on 2011-03-20
Medium Priority
Last Modified: 2012-05-11
I was an early adaptor of HDTV and my system, my TV and AV receiver, only have Component Video inputs for HD video.  The system was working fine but I wanted to upgrade to a HD-DVR and since dealing with Comcast's customer service is painful I switched to WOW when they arrived in our neighborhood.  The picture quality on many channels was terrible, color was blotchy, looked like a water color painting.  When I plugged the cable box directly into the TV the picture looked good.  After some troubleshooting, I thought there was a problem with the AV receiver, because when I bypassed the receiver using Fe to Fe RCA connectors the picture looked good.  This should indicate the cables are good.  
I check out the AV receiver and it appears to work correctly, I can plug in the DVD player (regular DVD NOT Blue Ray) into either component video input and picture looks good.  It appears all components are working, just that they don't work together.  The question is does any know why the WOW cable box would not work when the Comcast box worked just fine?  Also any suggestions on how to remedy the situation.   FYI the WOW cable box is a Scientific Atlantic 8300HDC and the Yamaha AV receiver is a RX-V2200.
Question by:jimmidude
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
  • 2

Accepted Solution

sdern earned 1600 total points
ID: 35183719
First try this step for setting 480p-720p resolution


The chances of it being an issue with cables is always minimal. I'd imagine that it would have to do with the signal from the box. Since component is standard, you should be thinking of it in terms of the signal being transmitted across the cables. I would double check and make sure you're plugging into component and not composite (red,green,blue cables vs just yellow). Component is analog and so the quality of the picture is susceptible to poor physical connections. Try setting the box to the appropriate resolution settings and let me know if that changes anything.

Author Comment

ID: 35186057
Thanks for the link to the article,I will have to give that a try.  I called WOW customer service and they told me there were not any settings that could be changed in the cable box.  
Yes I am certian I am plugging into component video inputs.  
Also I looked up the bandwith for the component video on my receiver and it said DC-60 MHz 3db.  The only reference I could find to the required bandwidth for 1080i stated 37 Mhz, so the reciever should be OK.  I don't have a signal generator capable of generating signals that high of a frequency, to test the reciever, may have to try and get a hold of one.
LVL 12

Expert Comment

ID: 35186114
Couple of questions to help visualize your setup:

1) WOW cable box connects to -> Yamaha receiver connects -> to TV?
2) This is done with 2 sets of component cables?

Plus you mentioned the picture quality on many channels was terrible, color was blotchy, looked like a water color painting. Was the picture quality good on some channels or was picture bad on all channels?

Author Comment

ID: 35194614
To answer PCableGuy's questions, 1 - Yes, 2 -Yes and the 2nd set of component cables are long.  Yes some of the channels looked acceptable, mostly the SD channels and shows, like cartoons without fine color detail.

I went through the procedure detailed in the link provided by sdern.  I was surprised to learn my TV cannot display 720p.  Still  is not acceptable going through the AV receiver on 1080i.
From this I must assume the old Comcast HD cable box was only outputting 480p. I am pretty sure it was the original box they gave me back in April 2003.  I would not mind upgrading the TV but it is a big rear projection set that will be difficult to get rid of.  

Now I am really curious about the bandwidth on the AV receiver, I think I can borrow a signal generator from work that goes up to 25 Mhz and will test it out.
LVL 12

Expert Comment

ID: 35195131
Possible workaround - can you bypass the Yahama altogether for the video portion and just use it for audio? (Sorry if this is a stupid question)


Featured Post

Free Tool: Site Down Detector

Helpful to verify reports of your own downtime, or to double check a downed website you are trying to access.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

I have purchased two new systems and both are now Universal Extensible Firmware Interface (UEFI) based. UEFI is replacing BIOS for the desktop PC. It is a Linux based firmware with enough robustness it can communicate with a website without loading …
In the modern office, employees tend to move around the workplace a lot more freely. Conferences, collaborative groups, flexible seating and working from home require a new level of mobility. Technology has not only changed the behavior and the expe…
This video teaches viewers how to process images for a time-lapse video. Programs required: Adobe Lightroom, Adobe After Effects, Video Editing Program. In Adobe Lightroom: Import sequence image files into Adobe Lightroom: Develop settings of an I…
This tutorial will teach you the special effect of super speed similar to the fictional character Wally West aka "The Flash" After Shake : http://www.videocopilot.net/presets/after_shake/ All lightning effects with instructions : http://www.mediaf…

604 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question