GBS-8220 RGB TO VGA Converter
- vanpeebles
- Commissario Pebbli
- Posts: 2821
- Joined: Sat Nov 20, 2010 7:13 pm
- Location: North East UK
GBS-8220 RGB TO VGA Converter
Just a quick report as I'm hoping to make this an article for Quanta. After reading some comments in the Oct/Nov 2010 Quanta magazine about QL's and modern monitors, plus seeing a review on a Spanish retro site: http://www.zonadepruebas.com/modules/sm ... temid=1225
I ordered one of these boards from www.jammaboards.com:
http://www.jammaboards.com/store/cga/eg ... d_291.html
The results can be seen here:
For some reason the pinout in the QL manual seems flipped or I might have read it wrong, I got the colours and the sync the wrong way. Sync is corrected but need to swop the colours for the final soldering.
I ordered one of these boards from www.jammaboards.com:
http://www.jammaboards.com/store/cga/eg ... d_291.html
The results can be seen here:
For some reason the pinout in the QL manual seems flipped or I might have read it wrong, I got the colours and the sync the wrong way. Sync is corrected but need to swop the colours for the final soldering.
- vanpeebles
- Commissario Pebbli
- Posts: 2821
- Joined: Sat Nov 20, 2010 7:13 pm
- Location: North East UK
Re: GBS-8220 RGB TO VGA Converter
Two screenshots to compare the Cub monitor versus the RGB board.
CUB
RGB
CUB
RGB
-
- RWAP Master
- Posts: 2839
- Joined: Sun Nov 28, 2010 4:51 pm
- Location: Stone, United Kingdom
- Contact:
Re: GBS-8220 RGB TO VGA Converter
That is looking good actually - although I wonder why no-one has ever tried the simple composite video mod on the QL?
Rich Mellor
RWAP Software
RWAP Adventures
SellMyRetro
Retro-Printer Module - add a USB printer to your QL
Also Involved in:
Icephorm
RWAP Software
RWAP Adventures
SellMyRetro
Retro-Printer Module - add a USB printer to your QL
Also Involved in:
Icephorm
- vanpeebles
- Commissario Pebbli
- Posts: 2821
- Joined: Sat Nov 20, 2010 7:13 pm
- Location: North East UK
Re: GBS-8220 RGB TO VGA Converter
I've not heard of it, would that mod support monitor mode on a normal tv or monitor?
-
- RWAP Master
- Posts: 2839
- Joined: Sun Nov 28, 2010 4:51 pm
- Location: Stone, United Kingdom
- Contact:
Re: GBS-8220 RGB TO VGA Converter
See http://womblesretrorepairshack.blogspot ... o-mod.html
I don't see why this won't work on a QL, although you will still not get 521x256 pixels on a TV so far as I can see - it is just an alternative if you have a poor display output on the TV set.
I don't see why this won't work on a QL, although you will still not get 521x256 pixels on a TV so far as I can see - it is just an alternative if you have a poor display output on the TV set.
Rich Mellor
RWAP Software
RWAP Adventures
SellMyRetro
Retro-Printer Module - add a USB printer to your QL
Also Involved in:
Icephorm
RWAP Software
RWAP Adventures
SellMyRetro
Retro-Printer Module - add a USB printer to your QL
Also Involved in:
Icephorm
- vanpeebles
- Commissario Pebbli
- Posts: 2821
- Joined: Sat Nov 20, 2010 7:13 pm
- Location: North East UK
Re: GBS-8220 RGB TO VGA Converter
Ah that RGB board supports monitor mode on a VGA monitor or tv with a VGA socket.
Re: GBS-8220 RGB TO VGA Converter
My RGB to VGA board just arrived!
Time to set to work....
Time to set to work....
--
If vanpeebles parps in the woods and there is nobody around, does it make a sound?
If vanpeebles parps in the woods and there is nobody around, does it make a sound?
Re: GBS-8220 RGB TO VGA Converter
Finally got my RGB to VGA Converter hooked up, the RGB cable I used had no V. Sync wire at the QL end.
Not a problem though, and the picture is great!
Nice find vanpeebles!
Not a problem though, and the picture is great!
Nice find vanpeebles!
--
If vanpeebles parps in the woods and there is nobody around, does it make a sound?
If vanpeebles parps in the woods and there is nobody around, does it make a sound?
Re: GBS-8220 RGB TO VGA Converter
With my German QL, the picture jumps in vertical direction at unpredictable times. Characters are hardly legible in 512x256, and the single pixels at the border can not be distinguished. Did you have the same results? I used the digital R,G,B,CSYNC inputs (called CGA/EGA).
- vanpeebles
- Commissario Pebbli
- Posts: 2821
- Joined: Sat Nov 20, 2010 7:13 pm
- Location: North East UK
Re: GBS-8220 RGB TO VGA Converter
Are you using the pole terminals or connected via the cable that came with it? I've had no problems with mine.