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rgbi to vga
Posted: Sat May 24, 2014 5:48 am
by alphadec
I am a owner of a cbm 128 when I did use this long time ago i did use it with a TV! but now I have got it out and amazingly it still works after 29 years. But how do I connect it to a vga monitor so I can
have 80 col display. ?
is there any convert I can buy. ?
Re: rgbi to vga
Posted: Sun May 25, 2014 4:34 am
by LoneWolf33
Hi,
...og velkommen til forumet.
Theoretically the 9pin RGBI output of the C128 can be rewired to a 15 pin SVGA connector without using a converter,
but the "low" 15.525kHz line frequency won't be tolerated by some monitors, resulting an "Out of range" or similar message.
Anyway here's the diagram:
- CGA2VGA.jpg (21.8 KiB) Viewed 10290 times
As far as I know the old CGA monitors were used the same DB9 pin configuration,
so a CGA to SVGA converter could be suitable for the job as well.
Re: rgbi to vga
Posted: Sun May 25, 2014 1:54 pm
by rbernardo
Currently, Alex sells Video DAC's (RGB digital to VGA) that will show all 16 colors of the C128's 80-column color palette. See
http://www.vintage-computer.com/vcforum ... -Available
Truly,
Re: rgbi to vga
Posted: Sun May 25, 2014 3:43 pm
by alphadec
LoneWolf33 wrote:Hi,
...og velkommen til forumet.
.
Tusen takk.