RGB<->VGA

[McVenco]

It may sound like a stupid question, but one can never be too sure about something:

Amigakit and Vesalia sell a VGA<->RGB adapter, to connect a VGA monitor to the Amiga RGB port. I suspect that this also works the other way round, so I can connect a Microvitek M1438 monitor (with 23-pin RGB connector) to a graphics board like the Cybervision or Picasso.

Am I right?

[Piru]

If you think about it for a second: Both rgb and vga connectors would be inverse.

[amigakit]

You will need ADAMON002 to connect a 23-pin Microvitec Mulitscan monitor to a VGA port as found on Amiga graphics cards:

http://amigakit.leamancomputing.com/catalog/product_info.php?products_id=577

[McVenco]

@Piru: Indeed, I'm a bit slow today (must be monday)

@amigakit: Thanks! I'll wait for my paycheck to arrive and order one.

[amigakit]

Thanks.

[zipper]

Piru wrote:
If you think about it for a second: Both rgb and vga connectors would be inverse.

I was under that situation just before Xmas. In a hurry I took some paper clips and butchered them to make pins into female connectors to turn them into male. And it worked until I got a "right" one.

[SamuraiCrow]

zipper wrote:

Piru wrote:
If you think about it for a second: Both rgb and vga connectors would be inverse.

I was under that situation just before Xmas. In a hurry I took some paper clips and butchered them to make pins into female connectors to turn them into male. And it worked until I got a "right" one.

It really shouldn't work.  There are buffers on the horizontal sync and vertical scan pins of the RGB port to make them hard-wired outputs.

[amiga_3k]

McVenco wrote:
@Piru: Indeed, I'm a bit slow today (must be monday)

@amigakit: Thanks! I'll wait for my paycheck to arrive and order one.

@McVenco:
Then I must be even slower as I'm thinking about this for a few minutes now and can't find any reason why you'd want a monitor like that on the gfx-card output. Is it because not all the Amiga-native modes are double-scanned/flicker-fixed by the PicassoIV? [I think I remember a few games not displaying thru the PicassoIV]

[McVenco]

amiga_3k wrote:

@McVenco:
Then I must be even slower as I'm thinking about this for a few minutes now and can't find any reason why you'd want a monitor like that on the gfx-card output. Is it because not all the Amiga-native modes are double-scanned/flicker-fixed by the PicassoIV? [I think I remember a few games not displaying thru the PicassoIV]

On the PicassoIV I wouldn't need the 1438 indeed. But for the moment I don't have a Picasso nor a spare VGA monitor.

I DO have a Cyberstorm 64/3D coming in, so I can connect the 1438 to it...

[amiga_3k]

@McVenco:

That makes sense :-) I was under the impression you had a PicassoIV. Don't ask me why ;-)

[rkauer]

Don't even think about that! You'll burn the adaptor, the graphics card and even the Amiga!:madashell:

Instead, download this: http://aminet.net/hard/hack/VGA_Hack.lha , just for guide.:rtfm:

Buy/Steal/Win/Beg_for a male VGA connector (new or from a dead VGA monitor) and a male 23 pin conn. (hard to find, take one from a dead miggy- is the external floppy one) (or make one from a 25 pin with 2 pins cutted down from one edge). :idea:

Notice that you'll don't need the TTL 74LS08 in the adaptor (maybe need, I dunno), in reverse way: inputs of the TTL are always on the Graphics Generator (RTG or AGA) side.   :-D