Component video to vga converter circuit

#Component video to vga converter circuit how to#
#Component video to vga converter circuit Pc#
#Component video to vga converter circuit tv#
#Component video to vga converter circuit windows#

75R termination resistors and 220R electrolytic caps on component inputs to TV (Y, B-Y, R-Y outputs, pins 16,17,18 from BA7230LS)ДЈ.

#Component video to vga converter circuit Pc#

75R termination resistors and 1uF caps on the PC RGB signal inputs (pins 13,14,15) to BA7230LSДў.

#Component video to vga converter circuit how to#

Apologies for the pencil-drawn schematic, I know nothing of how to use circuit drawing software like Eagle etc., another learning curve.ДЎ. The circuit was originally based on Ace's 5.0 circuit from the Sega16 forums, but also I've been looking at many other modders works, circuits, reading manuals/datasheets and revising basic electronics theory/practice. It sits between the PC's VGA RGBS out and the TV's new component inputs.

So, this is the RGB2component circuit that I've been playing with. It is setup to output composite sync (positive polarity) on VGA for all video modes. To start with, my RGB source is a Win XP64 core2duo E7500 3.0GHz 2GB with a Radeon X1050 64mb PCI graphics card (VGA + Svideo out), running CRT_emudriver for 15KHz + video modes. Next post: Zebidee's RGB2component hack Edited Novemby Zebidee You'll see that the image is a currently a little too wide - I will want to make some TV adjustments and tweak my video modes in CRT_emudriver. If sometimes they seem a little dark, it is because I was focused on trying to capture 'pixelation' or sharpness (in any case, I can still adjust the brightness/contrast, just like in a normal TV), which means my ancient iPhone 4S camera automatically used a small aperture (ie darker) to minimise 'blooming' from bright areas. I then connected a RGB2component circuit that I've been playing with, between the PC's VGA RGBS out and the TV's new component inputs (see below). I carefully lifted the legs of the caps from the PCB (ie out of circuit), and added my component input wires there (ie nothing between my wires and the jungle 'monster''s component inputs). Instead of soldering directly to the jungle chip, I figured it'd be much better hacking my inputs in here. This is where component inputs would have been fed into the jungle, if they existed. On the TV, I traced the unused jungle's Y/Cb/Cr inputs back to where they were terminated with 0.1uF capacitors and 100R resistors to ground. Somehow I found an English language pinout: I couldn't find any datasheets that exactly matched my TV's jungle IC, but I found a few hits for a very similar one, 8893CRCNG7D65, which is also made by Toshiba and identical for my intents and purposes. So I crossed my fingers and forged ahead with the assumption that whomever labelled the IC knew little about the difference between the two standards. Now, I know that YCbCr is a digital standard, not analogue (YPbPr), but everything pointed to this TV being able to take analogue YPbPr (component) inputs, including unpopulated PCB traces and a blanked out spot on the TV case for the plug mounts to go. This is where I hacked the component signal in. However, there are IC inputs labelled 'Y, Cb, Cr' at pins 19,20,21. There were no component inputs on this TV either. There is no RGB anywhere on this TV until you get out of the jungle and on your way to the neckboard.

This chip does not provide for RGB inputs at any stage. It has just one chip on the PCB, a jungle 'monster' IC with OSD functions combined (8895CSN67GG9). 'From the factory', it only has composite inputs. The TV is a brand new Distar 21' CTV-1121 TV, built on a very common cheap generic Chinese chassis (bought in Thailand). It is running CRT_emudriver and outputting +'ve composite sync.

#Component video to vga converter circuit windows#

The PC is a very basic Windows XP64 machine (HP/Compaq core2duo E7500 3.0Ghz 2GB RAM) with an old X1050 64mb video card that outputs VGA + svideo. Hello Aussies, I'd like to explain how I've successfully hacked an interface board to convert PC RGB(S) output into component colour space for direct input to a TV that does not directly support either RGB or component inputs.