Core Grafx 2 RGB picture

[moonwhistle]

I bought a region and RGB modded Core Grafx 2. It outputs RGB through a replacement din socket.

I thought the picture was perfect. I also have an external custom made RGB unit that plugs into the expansion slot. When I tested it I found that the picture is different, probably better. The larger sprites are noticeably less blocky / jaggy. The sound however is worse through the external unit.

Any ideas on why there is a variance in picture quality?

Thanks.

[TurboXray]

The RGB output form the VCE is extremely crisp. Any softening through a converter is due to filtering in the IC design. Using a slow amp and/or caps, etc. Could be frame grabbing/digitizing device that's outputting from a frame buffer. Any number of things. You would need to provide a lot more details to get any real answers.

[SignOfZeta]

Yeah, we'd need to know exactly what you have. More importantly, we need to know what's "better" or "worse" in your opinion. A lot of people want the sharpest (ie: jaggiest) image possible from the system itself. Any softening should be done by the display.

[moonwhistle]

Sorry for the lack of details, I'll try to take some photos of what I've got and screen shots later on.

[Alexander78]

The RGB output form the VCE is extremely crisp. Any softening through a converter is due to filtering in the IC design. Using a slow amp and/or caps, etc. Could be frame grabbing/digitizing device that's outputting from a frame buffer. Any number of things. You would need to provide a lot more details to get any real answers.

Hi,
 
I have the PC-Engine Core Grafx II

I would like to change the video output in RGB, I'm looking for a guide to go from "Composite Cable" to "RGB"....

I would try to make the change to the Core Grafx II. Can someone tell me a guide ??

[thesteve]

guides are common, just search for pcengine RGB
amps are needed, and pick one.
we may soon have a professionally made amp for RGB mods (contact BlueBMW for details)

[Alexander78]

Hi thesteve!

is true, there are many guides generic  for pc-engine .... For example, for the duo or turbo Grafx etc ....
 but i can not find a specific guide for your motherboard's Core Grafx II, anyone knows one ?

anyone know where I can find it ?

[thesteve]

you dont need a specific guide as the important points dont change

[soop]

Here: http://www.mmmonkey.co.uk/console/pce/rgb.htm

You probably want to buy one of Blue's amps though.  Trust me, it will save you a LOT of effort.

[incrediblehark]

If you're rgb modding a coregrafx, I recommend tapping the R,B,B,Sync lines from the PC Engine's expansion connector, and you may need to swap out the 5 pin din with an 8, to keep rgb and composite and still have the system look unmodified.

[Alexander78]

Here: http://www.mmmonkey.co.uk/console/pce/rgb.htm

ok thanks I'll see what I can do with this guide