Pelican Parts Forums - HDTV signal input source(s)

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HDTV signal input source(s)

Just bought a new 240hz 55" edge lit LED/LCD TV.

Still calibrating it and dialing it in.

ran RGB cables and seperate RCA audio cables at first, as that's all I had on hand. (had a Blu Ray player and HDMI but couldn't find an extra HDMI for a DishNetwork cable signal source).

RGB cables and calibration settings from different forums on the web give an awesome sharp picture dialed/tweeked in.

I hooked up some "cheap" ebay HDMI cables (I wasn't going to spring $40 for 3 foot cables) , and the picture is MUCH LESS CRISP and colors washed out. I re-calibrated the TV same HDMI verses RGB signal input sources, yet the HDMI sucks compared to RGB.

thoughts/comments?

Cabling, RGB verses HDMI. I'm not wall mounted so I don't care that 5 cables verses 1/4" HDMI feed up the back.

Same source, a HDTV Dishnetwork receiver, but RGB verses HDMI. Totally major picture quality difference. Does Cabling make "that" much a difference? Other than ohm Resistance to analog cables, a signal is a signal, HDMI or RGB.

this TV at Costco ROCKS for $1600. I Replaced a high end Samsung 46" for this 55" inch.

Vizio XVT553SV Review - Watch CNET's Video Review

Amazon.com: VIZIO XVT553SV 55-Inch Class Full Array TruLED with Smart Dimming LCD HDTV 240 Hz SPS with VIZIO Internet Apps: Electronics

Quote:

Originally Posted by Rusty Heap (Post 5998834)

Same source, a HDTV Dishnetwork receiver, but RGB verses HDMI. Totally major picture quality difference. Does Cabling make "that" much a difference?

It isn't a differnce between Cheap or Expensive HDMI cables it is what is in the box to encode the signal. The RGB video signal (or actually YPBPR) sounds to be higher resolution than when it is encoded into HDMI

Where do you find instructions on "calibration?"

look around here

AVS Forum

stunningly cheap HDMI cables - ebay $1.17 each with free shipping. I bought six.

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=200596843955&ssPageNam e=STRK:MEWAX:IT

and yes, besides a softer non-sharp video picture, I've seen dropped pixels on a major scale..........might try another one of the HDMI cables, but right now I'm sticking with RGB.

Sucks though as I have like 8 HDMI inputs on the TV and only 1 RGB.

Most likely your Dish box is the culprit. Switching between cables should only make very small differences. If there is a vast difference, and you want to use HDMI, then I would ask Dish to send you a new box - assuming the HDMI cable is up to par.

Here is some reading for you while you wait.
DVI vs. HDMI vs. Component Video -- Which is Better? - eCoustics.com

First, I am a strong believer in not overpaying for cables, but I did go through an example with HDMI cable when setting up a Large Sony LCD TV. The TV was a 42" Bravia 240mhz and we were connecting it to a Dell 580s Computer with HDMI out for Blu Ray and video. When using an old HDMI that I had buried in the wall a few years ago, we could not get the resolution to maximize to the screen size. Had to go to a lower resolution to get the proper size. I later picked up a pair of "Rocket Fish" HDMI which are the latest version that support Ethernet. I will spare you all the specs and I didn't pay much more then $30 for 2 8ft pair. But they improved the resolution so that now we have the highest setting for the monitor and video card. I'm not sure if the higher refresh rate of 240mhz has anything to do with it. It might be worth trying the lastest generation hdmi cable before anything else. If it works, return it and buy it on amazon for a better price.