AVS Forum banner
Status
Not open for further replies.
1 - 5 of 5 Posts

·
Banned
Joined
·
3,772 Posts
For HDTV they are both about the same. Component has slightly reduced color resolution capability, but the HDTV signal is already reduced that way anyways.


If you were trying to drive your HDTV with a computer display showing fonts (text) and other things with full color resolution then RGB would be the way to go.


Since your display has RGB inputs you can save yourself the trouble of getting a transcoder...
 

·
Registered
Joined
·
778 Posts
Discussion Starter · #3 ·
I hooked it up both ways, and it seems that the component connection has much better color. I am wondering if I need a different cable. I took the short 15 pin cable(that came with the VCD300) and added an extension cable. All the extension 15 pin ext cables I could find actually only had 14 pins. Could this be making a difference?
 

·
Registered
Joined
·
1,881 Posts
Someone has noted previously that some sets have a purer signal path for RGB than for component. However, any RGB you feed your display from a regular video source (DVD, broadcast, satellite, etc.) will be derived from component, since all those sources are component-video natively.
 

·
Registered
Currently in flux, but always an HDFury Device for incredible LLDV Dolby Vision on normal HDR10 PJs!
Joined
·
7,075 Posts
Quote:
Originally posted by MDRiggs
Someone has noted previously that some sets have a purer signal path for RGB than for component...
If your display device is analog, i.e. - CRT, then RGBHV will always have to be derived before it can be sent to the "guns" of the CRT. So if you feed it RGB to begin with, it is a shorter signal path with basically no processing and more "pure" than a component signal, per se'. It really comes down to what unit has the better YUV to RGBHV decoder built inside, the HDTV box or the display. One way or another, it has to be transcoded to RGBHV.

Quote:
Originally posted by MDRiggs
...However, any RGB you feed your display from a regular video source (DVD, broadcast, satellite, etc.) will be derived from component, since all those sources are component-video natively
Not exactly true...


DVD is indeed component on the disc natively, but depending on what "broadcast" you're talking about, NTSC or ATSC, it could be composite (broadcast NTSC, PAL, SECAM, etc.) or component (8-VSB ATSC HDTV). Also, the SD signal coming from satellites such as DirecTV and DISH are natively encoded using a Y/C (Luminance/Chrominance, aka S-Video) signal, not component (except the HD channels).


Apps1,


I think the component signal appears better from the RCA VHDC-300 RGBHV to Component transcoder because it's just adding some saturation to the colors (which isn't actually there in the original RGB signal), making them appear more vibrant, but I bet the RGBHV straight out of the DTC-100 is actually the more "correct" signal. What you're actually doing in your setup is going from a component source (ATSC HDTV) and internally transcoding it in the DTC-100 for it's RGBHV output, then taking that output and externally transcoding it back to component through the VHDC-300, who's output then goes to your display device which then transcodes it back again to RGBHV for the signals that drive the CRT guns. Too many unnecessary conversions in my opinion and too much opportunity to degrade the signal. I think if you really look closely you will see some possible noise and signal loss when using the external transcoder and the RGBHV should look a little "cleaner"???
 
1 - 5 of 5 Posts
Status
Not open for further replies.
Top