In the good times of CD-R on GD-ROM !!!

Place for discussing homebrew games, development, new releases and emulation.
aldair
Metallic
Posts: 832
Dreamcast Games you play Online: Quake 3 Arena

In the good times of CD-R on GD-ROM !!!

Post by aldair »

Native 240p straight from the Dreamcast VGA cable.

https://youtu.be/kJxKqg7EPnc

nonosto
undertow
Posts: 34

Re: In the good times of CD-R on GD-ROM !!!

Post by nonosto »

how do to do it please? Hex code mod?

aldair
Metallic
Posts: 832
Dreamcast Games you play Online: Quake 3 Arena

Re: In the good times of CD-R on GD-ROM !!!

Post by aldair »

nonosto wrote:how do to do it please? Hex code mod?
https://youtu.be/0cIcZhXznxU

Checking if your monitor has 15khz support with vga cable: http://www.dc-swat.ru/forum/thread-3882 ... l#pid41797

Monitor acer cb272: https://www.amazon.com/Acer-CB272-bmipr ... B07WMTLW2R

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Anthony817
Shark Patrol
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Location: Fort Worth, Texas

Re: In the good times of CD-R on GD-ROM !!!

Post by Anthony817 »

So all you did is removed the resistor from the board? Then it will display at 15khz?
Image

aldair
Metallic
Posts: 832
Dreamcast Games you play Online: Quake 3 Arena

Re: In the good times of CD-R on GD-ROM !!!

Post by aldair »

Anthony817 wrote:So all you did is removed the resistor from the board? Then it will display at 15khz?
My VGA box I put a switch, in the video it shows. The VGA cable already comes with pins 7 and 6 in gnd to have 15khz you need pin 7 only in gnd.
If your monitor supports 240p it will be displayed on the screen.

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Anthony817
Shark Patrol
Posts: 4033
Location: Fort Worth, Texas

Re: In the good times of CD-R on GD-ROM !!!

Post by Anthony817 »

Awesome thanks! I only use straight VGA cables for my DC not VGA box, but this will be useful for others to know!
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aldair
Metallic
Posts: 832
Dreamcast Games you play Online: Quake 3 Arena

Re: In the good times of CD-R on GD-ROM !!!

Post by aldair »

Anthony817 wrote:Awesome thanks! I only use straight VGA cables for my DC not VGA box, but this will be useful for others to know!
It's just to test the monitor if it has 15khz rgbhv but you need to remove the component shown in the photo to be only pin 7 in gnd with vga cable plugged in. Then just put the resistor back.

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