Solution for external Flicker fixer?
- Thread starter Harrison
- Start date
- Replies 814
- Views 312618
spanner
New member
Anyone need a manual..
This is for GBS 8200..
http://info-coach.fr/atari/hardware/video/GBS-8200.pdf
This is for GBS 8200..
http://info-coach.fr/atari/hardware/video/GBS-8200.pdf
The questions keep coming...
My A1200 arrived yesterday, so got the GBS-8220 wired up and sorted with a 5v 2A power supply. Got everything plugged in, and while the workbench screen appears (hooray!) it seems to "vibrate" slightly on a Dell Ultrasharp LCD monitor. Also has a glitchy bar running across the very bottom of the screen, which hangs around even after I reset the 8220.
This normal from these things?
My A1200 arrived yesterday, so got the GBS-8220 wired up and sorted with a 5v 2A power supply. Got everything plugged in, and while the workbench screen appears (hooray!) it seems to "vibrate" slightly on a Dell Ultrasharp LCD monitor. Also has a glitchy bar running across the very bottom of the screen, which hangs around even after I reset the 8220.
This normal from these things?
Miggy's were designed for CRT monitors which typically run between 5-10% overscan vs LCD Monitors which usually run no overscan at all - try adjusting the overscan on the GBS-82xx to remove it.
Ed.D
Active member
Hi Ubermick, I use a Dell Ultrasharp too (24").
- I'm not sure what the vibration is. Maybe try the Clamp st and Clamp sp settings in the Geometry menu.
My Geometry settings:
1. H Position 55
2. V Position 15
3. H Size 50
4. V Size 54
5. Clamp st 92
6. Clamp sp 95
7. Default
- You may be able to get rid of the glitchy bar at the bottom by increasing your V Size setting in the Geometry menu.
Last edited:
Can anyone tell me how to hook up a CGA input for the GBS-8220?
The CGA/EGA seems to lack the "I" for intensity and only has composite sync instead of HS/VS - the latter issue is prolly not a big deal as it wiring them together should produce a working composite sync but the lack of an "I" input has me slightly confused.
CGA pin-outs here: http://www.allpinouts.org/index.php/CGA
PS. I have this working great for my Miggy but want to fire up an old CGA equipped PC.
The CGA/EGA seems to lack the "I" for intensity and only has composite sync instead of HS/VS - the latter issue is prolly not a big deal as it wiring them together should produce a working composite sync but the lack of an "I" input has me slightly confused.
CGA pin-outs here: http://www.allpinouts.org/index.php/CGA
PS. I have this working great for my Miggy but want to fire up an old CGA equipped PC.
Hiya Ed. Tried those on mine, and it still looked fairly pants. Unfortunately, the naff bar running along the bottom of the screen is actually eating a wee bit of the actual workbench screen... I can get rid of it via the vsize, as you mentioned, but I lose the bottom 10 pixels or so of the display.
This is using a Dell 1800FP, which is an older 18" 4:3 screen tho. I just snagged a brand new U2410 to use for work on my hackintosh, so slapped it into that, and... same problem.
Looks grand on the old CRT, it's just the LCDs that are having issue. I do wonder if it's the version of the GBS I have, as I mentioned, I've read in many places that the V4.0 is the one to get for the Amiga, and I got the V3.0. So I suppose the choices now are stick with the CRT, order the 4.0 and see if that's any better, or instead of chucking good money after bad, just bite the bullet and get the Indy AGA. I'd have no problem using the CRT if I had more room, but the only place for the Amiga in the house is the office, and I've already got way too much crap in here already between cabinets, two desks, printers, laptops, etc., and that CRT is an absolute BEAST of a thing.
Retrograde
Member
Ordered one too!! 
Gonna hack up my old defunct RF-modulator for the 500 and use that connector to see how the Amigas fare, I can't stand the RF-type of signal these days anyway when there are bundles of composite/svideo/RGB cables for every system...
Would be neat to have more inputs but you can't have everything!
I was thinking though; wouldn't it be pretty easy to mount a connector to the supplied cable, then make custom cables for each device to use with the converter/scaler?
Was thinkin to use a bunch of DSUB-15 or whatever else I can source cheaply with enough pins so no mistakes can be made
Could make one cable for the Amigas, one for the Megadrive and one for whatever other machine I want to connect to VGA...
What do you fellas think?
Gonna hack up my old defunct RF-modulator for the 500 and use that connector to see how the Amigas fare, I can't stand the RF-type of signal these days anyway when there are bundles of composite/svideo/RGB cables for every system...
Would be neat to have more inputs but you can't have everything!
I was thinking though; wouldn't it be pretty easy to mount a connector to the supplied cable, then make custom cables for each device to use with the converter/scaler?
Was thinkin to use a bunch of DSUB-15 or whatever else I can source cheaply with enough pins so no mistakes can be made
Could make one cable for the Amigas, one for the Megadrive and one for whatever other machine I want to connect to VGA...
What do you fellas think?
Ed.D
Active member
I have version 3.0(date: 2011.08.16) and although it's not what I would call a perfect picture, it does work, I get some shimmering on the desktop icons when I move the mouse pointer over them. At some point I'll probably get and Indivision.
yes, i reckon you could feed the GBS the S-Video signal without any issues.Could these be used on a C64 too?
Ordered one too!!
Gonna hack up my old defunct RF-modulator for the 500 and use that connector to see how the Amigas fare, I can't stand the RF-type of signal these days anyway when there are bundles of composite/svideo/RGB cables for every system...
Would be neat to have more inputs but you can't have everything!
I was thinking though; wouldn't it be pretty easy to mount a connector to the supplied cable, then make custom cables for each device to use with the converter/scaler?
Was thinkin to use a bunch of DSUB-15 or whatever else I can source cheaply with enough pins so no mistakes can be made
Could make one cable for the Amigas, one for the Megadrive and one for whatever other machine I want to connect to VGA...
What do you fellas think?
I don't think it will work with the md/snes unless you deal with the sync issues. See here: https://www.amibay.com/showthread.php?t=26672&page=14
post 123, 131, 133
Blech.
On the assumption that this didn't like Dell LCD monitors, I went out and snagged a used Samsung Syncmaster, brought it home and... exact same result. Awful workbench screen, shimmering around the mouse pointer, and vertical banding that messing with the h-size won't get rid of. Borrowed a mate's old 15" Microtek screen (not so much borrowed, he won't take it back, telling me I'm stuck with it now!!) and same result there too. So either I've got a dodgy unit, or I've got horribly unrealistic expectations from this, stemming from using top of the line macs for graphics work the past few years.
Tried snapping some photos of it, to show what was going on... images don't really do how bad it looks justice. Again, probably just me having overly high standards for this...
On the assumption that this didn't like Dell LCD monitors, I went out and snagged a used Samsung Syncmaster, brought it home and... exact same result. Awful workbench screen, shimmering around the mouse pointer, and vertical banding that messing with the h-size won't get rid of. Borrowed a mate's old 15" Microtek screen (not so much borrowed, he won't take it back, telling me I'm stuck with it now!!) and same result there too. So either I've got a dodgy unit, or I've got horribly unrealistic expectations from this, stemming from using top of the line macs for graphics work the past few years.
Tried snapping some photos of it, to show what was going on... images don't really do how bad it looks justice. Again, probably just me having overly high standards for this...
Attachments
I dont get the bad vertical banding you see but I do get the slight ghosting around the mouse pointer.
Im about to add a sync stripper to mine and see if that improves things by cleaning-up the sync from the composite sync signal.
Somethings not right with your set up. If you look back to my pictures here on page 37 this thread, these were with a 40" samsung tv
https://www.amibay.com/showthread.php?t=20468&page=37
No vertical banding. Maybe there is a problem with vertical sync in your lead from amiga to gbs 8220?
The clarity of your pictures also seems poor hmmm
All the Samsung TV's I have tried get great pics with their built in SCART sockets. Doesnt yours have one? Is the Gonbes board+VGA better than the inbuilt SCART and a SCART cable from your Amiga? Can you tell the difference?
