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 Post subject: Re: gscartsw: automatic 8:1 SCART-RGB switch
PostPosted: Sun Aug 24, 2014 2:39 pm 


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kamiboy wrote:
Superg, if there is a waiting list for a future JP21 version, then go ahead and put me on it.

Added.
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 Post subject: Re: gscartsw: automatic 8:1 SCART-RGB switch
PostPosted: Mon Aug 25, 2014 2:35 am 


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So I've had the GSCART Switch for a few days, and I'm really pleased. I think the unit itself looks very nice (even though I tuck it behind my entertainment center where it can't really be seen), the automatic switching works perfectly so far, and there's no obvious loss of quality when playing.

Comparing screenshots, there is a minuscule amount of brightness loss and sharpness loss (like 1% by my reckoning), however, it's so little that I'd have never known it was there if I didn't take screenshots to compare, and got my nose right up to my monitor to flip back and forth between the shots.

The more interesting quirk is that the image is slightly off-center (I'm using a Framemeister). I think I saw an earlier post mentioning this. It would've taken me longer to notice this if I weren't doing tests, but I'd have eventually noticed when streaming or editing video. I can correct the centering with the Framemeister's horizontal positioning settings, but the amount that the image is off-center by varies by system, it seems, so there's no one-size-fits-all correction. My feeling is that I won't be annoyed by this most of time, and if I am, then I can just adjust it very easily... more easily than switching SCART cables all the time, anyway.

I'm curious if any of these quirks are innate to the GSCART Switch, or if they could be introduced by my SCART cable that connects the output to the Framemeister's input adapter. I had no idea what I was doing when I bought my male to male SCART cable a few months ago, but fortunately it seems I lucked out, and it's compatible with the GSCART. This is the one I bought, by the way: http://www.ebay.com/itm/261368834692?_t ... EBIDX%3AIT

I'm not at all very technical about the nitty-gritty electronic workings of these things, but I'm going to release a very simple and casual video review on the switch next week, and I wanted to make sure that I had my facts straight before I said that a negligible amount of brightness and sharpness loss was caused by the GSCART (or another factor?), as well as the slight off-centering of the image, etc.


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 Post subject: Re: gscartsw: automatic 8:1 SCART-RGB switch
PostPosted: Mon Aug 25, 2014 3:13 am 


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Forks wrote:
The more interesting quirk is that the image is slightly off-center (I'm using a Framemeister). I think I saw an earlier post mentioning this. It would've taken me longer to notice this if I weren't doing tests, but I'd have eventually noticed when streaming or editing video. I can correct the centering with the Framemeister's horizontal positioning settings, but the amount that the image is off-center by varies by system, it seems, so there's no one-size-fits-all correction. My feeling is that I won't be annoyed by this most of time, and if I am, then I can just adjust it very easily... more easily than switching SCART cables all the time, anyway.

Sync stripper adds a little delay to sync signal, that's why you see shifted image. X-offset should depend on image resolution thus each different resolution will be shifted by slightly different length (somebody knowledgeable please correct me if I'm wrong)
Turn it off and you'll see exactly same centering as it was without the switch. You should see similar effect on almost all devices which incorporate LM1881 or similar IC. That's the price you pay for cleaning composite sync on the switch, you may want to use clear sync cables / mods and leave LM1881 turned off, it will fix it.

1% brightness loss is interesting, looking forward to see your pics. If you see 1% loss, you definitely should see it with manual Bandridge switch.

Also your SCART cable should be just fine, at your place I'd not spend a premium for a "better" cable.
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 Post subject: Re: gscartsw: automatic 8:1 SCART-RGB switch
PostPosted: Mon Aug 25, 2014 3:42 am 


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Thanks for the info! I totally forgot it has a switch related to sync on it... I'll try that out and see what happens. Sync is one of those things in the world of SCART and RGB that's remained a bit of an enigma to me... because it's never caused me any issues before, so when I've seen people throw around "sync" this and "sync" that, I'll admit that I either ignored it, or it flew over my head. I have no idea if turning the sync switch the other way would do anything that I wouldn't want it to do, or if I'm getting benefits from having it on that I haven't noticed yet. HOW the information travels down the SCART cable is pretty mysterious to me, I just know I really like the result!

And yes, I did see the small loss of brightness on the Bandridge switch too (using the same cable of course). So it's certainly nothing specific to the GSCART. I did not test that unit extensively though, because I stopped once I realized it was sending power to my Sega Genesis when other systems were on. I'm not complaining at all about the brightness, I'm just noting it because it's there. No one would ever know it without comparing screenshots, and even then, it's almost indistinguishable, in my opinion.

Here's my screenshots, with with the toggle switch in the right-hand position (CSYNC on, I guess?):

Famicom direct to Framemeister:
https://dl.dropboxusercontent.com/u/38773296/SCART%20SWITCH/Fami_1.bmp
Famicom through GSCART:
https://dl.dropboxusercontent.com/u/387 ... Fami_2.bmp

Note there's a funny little bend at the upper-right of the Famicom image... only visible on Famicom, I'm guessing because other systems seem to generally fill that part of the overscan area in with black. No biggie, just an observation.

Genesis direct to Framemeister:
https://dl.dropboxusercontent.com/u/387 ... /Gen_1.bmp
Genesis through GSCART:
https://dl.dropboxusercontent.com/u/387 ... /Gen_2.bmp

SNES direct to Framemeister:
https://dl.dropboxusercontent.com/u/387 ... SNES_1.bmp
SNES through GSCART:
https://dl.dropboxusercontent.com/u/387 ... SNES_2.bmp

PS1 game playing on PS2, direct to Framemeister:
https://dl.dropboxusercontent.com/u/387 ... /PS1_1.bmp
PS1 game playing on PS2, through GSCART:
https://dl.dropboxusercontent.com/u/387 ... /PS1_2.bmp

N64 direct to Framemeister:
https://dl.dropboxusercontent.com/u/387 ... /N64_1.bmp
N64 through GSCART:
https://dl.dropboxusercontent.com/u/387 ... /N64_2.bmp

When I get a chance, I'll post what I find with the toggle switch in the off position.


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 Post subject: Re: gscartsw: automatic 8:1 SCART-RGB switch
PostPosted: Mon Aug 25, 2014 4:00 am 



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Hi there Superg, I was referred to this thread by Forks up there and I'm very much interested in one of our switchers. Just a regular old Euroscart kind. So if there is still a list, I'd love to be added to it! Thank you!


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 Post subject: Re: gscartsw: automatic 8:1 SCART-RGB switch
PostPosted: Mon Aug 25, 2014 4:05 am 


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OK, so it's late, so I'm only testing briefly at the moment, but from only testing the Genesis so far, here's what I find with the CSYNC toggle set to off...
https://dl.dropboxusercontent.com/u/38773296/SCART%20SWITCH/Gen_0.bmp

Compare to the one that goes straight to the Framemeister:
https://dl.dropboxusercontent.com/u/387 ... /Gen_1.bmp

The alignment is exactly the same in both now, but I see how setting the toggle to off does take away a good bit of the color's depth. Is this something I can solve with a different type of cable? I'd love to have all of my systems be centered, because it makes it easier to setup scenes for streaming if I can count on them to be in the same place, but it'd also be great if I could have the best color at the same time.

EDIT: Ah, I see that the Famicom and SNES don't seem to work with the toggle turned off... if I remember correctly, those are "raw sync" cables from Retro Console Accessories. When I got those cables, they did get rid of some checkerboard patterns in certain colors that previous cables used, but why exactly they improved the image, and why it doesn't work with the toggle turned off, are things that I don't know much about.


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 Post subject: Re: gscartsw: automatic 8:1 SCART-RGB switch
PostPosted: Mon Aug 25, 2014 6:33 am 



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Actually the Bandridge also had the same effect. Each system has it's own bias in centering. This is why the bvm's channel settings comes in handy. Not sure what to do with the frameister though.


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 Post subject: Re: gscartsw: automatic 8:1 SCART-RGB switch
PostPosted: Tue Aug 26, 2014 12:22 am 


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First, thanks a lot Forks for your screens, I don't have any recorder equipment here and I find those screenshots very helpful!
Definitely I see some minor brightness loss, and I'd say it's even more than 1%. How long are your cables? It looks like it's a problem viletim was talking about (search this topic for his reply). If I'd decide to go with an amplifier solution I would have to remove power from input scarts and rely only on external power supply. Also in daisy-chain every switch will need it's own power supply. What a dilemma :(.

Forks wrote:
The alignment is exactly the same in both now, but I see how setting the toggle to off does take away a good bit of the color's depth. Is this something I can solve with a different type of cable? I'd love to have all of my systems be centered, because it makes it easier to setup scenes for streaming if I can count on them to be in the same place, but it'd also be great if I could have the best color at the same time.

Color loss is definitely not good. What's interesting that it happens when LM1881 is turned off and it puzzles me. You may try to reduce some cable length. Also I can send you phat male to male SCART I did testing with (for free). It has broken SCART plastic but otherwise it's functional.

EDIT: Ah, I see that the Famicom and SNES don't seem to work with the toggle turned off... if I remember correctly, those are "raw sync" cables from Retro Console Accessories. When I got those cables, they did get rid of some checkerboard patterns in certain colors that previous cables used, but why exactly they improved the image, and why it doesn't work with the toggle turned off, are things that I don't know much about.[/quote]
It was working without LM1881 in v1 where I didn't supplied negative voltage and negative part of sync signal was simply cut. Then Calpis (my development thread at assemblergames) pointed out that I should forward as much signal as I can to support some broken mods and I added negative voltage to RGBS lines. Now it needs LM1881 for some Nintendo consoles. So I guess there is some negative noise on these consoles.

I hope I will finish with my basement flood in a month and will continue work on my switch. As of now I don't have an access to my consoles and stuff - everything is packed in storage boxes.

CouryC wrote:
Hi there Superg, I was referred to this thread by Forks up there and I'm very much interested in one of our switchers. Just a regular old Euroscart kind. So if there is still a list, I'd love to be added to it! Thank you!

I've added you.

Taiyaki, I got reports from retrorgb (he is also using PVM) that if he turns on his PS1 and any other console simultaneously, he sees some interference on screen. Can you please check this for me? While it isn't a proper use case I would still like to know if you're also affected. I don't own PVM and it's too expensive to invest into.
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 Post subject: Re: gscartsw: automatic 8:1 SCART-RGB switch
PostPosted: Tue Aug 26, 2014 4:07 am 



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superg wrote:
Taiyaki, I got reports from retrorgb (he is also using PVM) that if he turns on his PS1 and any other console simultaneously, he sees some interference on screen. Can you please check this for me? While it isn't a proper use case I would still like to know if you're also affected. I don't own PVM and it's too expensive to invest into.


I tried it out and yes, the picture starts wiggling left and right.


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 Post subject: Re: gscartsw: automatic 8:1 SCART-RGB switch
PostPosted: Tue Aug 26, 2014 4:18 am 


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Taiyaki wrote:
superg wrote:
Taiyaki, I got reports from retrorgb (he is also using PVM) that if he turns on his PS1 and any other console simultaneously, he sees some interference on screen. Can you please check this for me? While it isn't a proper use case I would still like to know if you're also affected. I don't own PVM and it's too expensive to invest into.


I tried it out and yes, the picture starts wiggling left and right.

Thanks a lot!
I'll debug this once I will get back to my equipment again.
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 Post subject: Re: gscartsw: automatic 8:1 SCART-RGB switch
PostPosted: Tue Aug 26, 2014 8:18 pm 


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superg wrote:
Color loss is definitely not good. What's interesting that it happens when LM1881 is turned off and it puzzles me. You may try to reduce some cable length. Also I can send you phat male to male SCART I did testing with (for free).

I believe all of my cables, including the male to male SCART that connects the switch's output to the Framemeister's RGB adapter, are advertised to be 1.5 meters, so they're pretty short.

Here are my latest findings. First, when the switch it set to the OFF position, there is no cable I own that gets the SNES to appear. While the Famicom won't appear with my newer "raw sync" cable from Retro Console Accessories, I do have an older cable of hers that allows the Famicom to appear with the toggle switch OFF. I'll post some more pictures below.

My numbering scheme is this:
0 = Through switcher, toggle OFF
1 = Direct to Framemeister
2 = Through switcher, toggle ON

That might sound weird, but I arranged them that way so I could easily flip between the best case scenario in the middle, and hit the key left or right to see what the switcher options looked like.

Famicom:
https://dl.dropboxusercontent.com/u/38773296/SCART%20SWITCH/Fami_0.bmp
https://dl.dropboxusercontent.com/u/38773296/SCART%20SWITCH/Fami_1.bmp
https://dl.dropboxusercontent.com/u/38773296/SCART%20SWITCH/Fami_2.bmp

Genesis (these have all been posted above, but this is for convenience):
https://dl.dropboxusercontent.com/u/38773296/SCART%20SWITCH/Gen_0.bmp
https://dl.dropboxusercontent.com/u/38773296/SCART%20SWITCH/Gen_1.bmp
https://dl.dropboxusercontent.com/u/38773296/SCART%20SWITCH/Gen_2.bmp

N64:
https://dl.dropboxusercontent.com/u/38773296/SCART%20SWITCH/N64_0.bmp
https://dl.dropboxusercontent.com/u/38773296/SCART%20SWITCH/N64_1.bmp
https://dl.dropboxusercontent.com/u/38773296/SCART%20SWITCH/N64_2.bmp

I'm showing SNES last because I have a few notes to make about it. There is also no switch OFF screenshot for SNES:
https://dl.dropboxusercontent.com/u/38773296/SCART%20SWITCH/SNES_SMW_1.bmp
https://dl.dropboxusercontent.com/u/38773296/SCART%20SWITCH/SNES_SMW_2.bmp

I took screenshots of a different SNES game, because the letterbox presentation of the Zelda title screen didn't show the full field of view. Here, you can clearly see a bending at the top of the SNES screen, similar to the bending that's noticeable at the top of the Famicom screen. This might not be a problem for most people, but unfortunately, it is fairly concerning to me, because since I both record and stream so much game footage, the bend in the image creates some problems in editing and scene layout.

For example, here's a screenshot from my stream last night:
https://dl.dropboxusercontent.com/u/38773296/SCART%20SWITCH/stream.png

Don't mind the actual quality of the image, it's lower because it's from a stream archive. I cropped the game window a little bit extra to hide the bend, so it's not as pronounced as it would be otherwise. If I arrange the scene to set another element next to it with a straight edge, like the webcam, then the bend becomes fairly noticeable, so I tried to hide it a bit, without cropping out too much of the actual game.

Here's another shot that shows some strong vertical lines, and you can see how the bend goes across the entire top part of the image:
https://dl.dropboxusercontent.com/u/38773296/SCART%20SWITCH/SNES_curve.bmp

I'm becoming concerned that perhaps enjoying the laziness and organization of a SCART switcher is simply incompatible with the sorts of things I do with my games, that being video editing and streaming. The off-center image creates problems in both scenarios, especially because I can't count on the games on different systems lining up with my framing in a video scene, and the bend at the top of the image is bothersome too. I don't actively pay attention to either of these issues while actually playing the game, but it's a problem for video editing and streaming... so I'm really not too sure what I should do right now... if I should just go back to manually swapping cables, or if we can figure out a solution. I am happy to help with further testing if there's something I can do, but right now I'm having trouble deciding if I should work around the issues (or solve them if solutions exist), or give up on using a switcher, and let you sell it to someone else. I believe it's a quality product for most people, but it may not work for my specific needs. But if it were possible, I'd love to still find a way to make it work for me.

superg wrote:
Taiyaki, I got reports from retrorgb (he is also using PVM) that if he turns on his PS1 and any other console simultaneously, he sees some interference on screen. Can you please check this for me? While it isn't a proper use case I would still like to know if you're also affected. I don't own PVM and it's too expensive to invest into.

I can also confirm that in my setup, there is both visual and audio noise when multiple systems are on. Of course, since the switch is automatic, there's really no reason to have multiple systems on at a time.


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 Post subject: Re: gscartsw: automatic 8:1 SCART-RGB switch
PostPosted: Tue Aug 26, 2014 10:07 pm 


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Forks, as a last resort for bended image try to use external power supply (anything 5-12V, center is negative) and switch ON sync stripper. Make sure you see green led light.
My concern is that SNES works directly with Framemeister but doesn't work through switch with sync stripper turned OFF. I will investigate it further when I will have some time and access to my equipment (this may not happen soon).
Unfortunately off-centered image can't be fixed easily (and nobody fixes it at all).
Although don't be disappointed by switching approach because all other issues are fixable, it's good I know these problems. I'll need to work on it more to make it perfect.
Please let me know your SNES revision (Mini / OneChip or bigger one).
You may return switch anytime.
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 Post subject: Re: gscartsw: automatic 8:1 SCART-RGB switch
PostPosted: Wed Aug 27, 2014 1:02 am 


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superg wrote:
Forks, as a last resort for bended image try to use external power supply (anything 5-12V, center is negative) and switch ON sync stripper. Make sure you see green led light.
My concern is that SNES works directly with Framemeister but doesn't work through switch with sync stripper turned OFF. I will investigate it further when I will have some time and access to my equipment (this may not happen soon).
Unfortunately off-centered image can't be fixed easily (and nobody fixes it at all).
Although don't be disappointed by switching approach because all other issues are fixable, it's good I know these problems. I'll need to work on it more to make it perfect.
Please let me know your SNES revision (Mini / OneChip or bigger one).
You may return switch anytime.


You know, I always believed that my SNES was a 1-chip, but I just double-checked information on how you can tell, and it may not be. Mine starts with serial number UN2. It was bought in 1994, is not yellow, and is from the package that came with Super Mario World and Super Mario All-Stars (the one with SMW on a separate cart)... if that tells you anything.

Anyway, I just tried with a 9V power supply, and it seems to have made no difference in the slight image bend. I'm not sure what I'll do now, but sadly, I'm probably leaning toward returning the switch. I think this is a great project though, and I think you're doing something that's going to be really excellent for a lot of people. I'm just sad that it may not work for my needs at this point. If I can capture anything else that would help you test before I return it, please let me know.


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 Post subject: Re: gscartsw: automatic 8:1 SCART-RGB switch
PostPosted: Wed Aug 27, 2014 2:01 am 


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Forks wrote:
superg wrote:
Forks, as a last resort for bended image try to use external power supply (anything 5-12V, center is negative) and switch ON sync stripper. Make sure you see green led light.
My concern is that SNES works directly with Framemeister but doesn't work through switch with sync stripper turned OFF. I will investigate it further when I will have some time and access to my equipment (this may not happen soon).
Unfortunately off-centered image can't be fixed easily (and nobody fixes it at all).
Although don't be disappointed by switching approach because all other issues are fixable, it's good I know these problems. I'll need to work on it more to make it perfect.
Please let me know your SNES revision (Mini / OneChip or bigger one).
You may return switch anytime.


You know, I always believed that my SNES was a 1-chip, but I just double-checked information on how you can tell, and it may not be. Mine starts with serial number UN2. It was bought in 1994, is not yellow, and is from the package that came with Super Mario World and Super Mario All-Stars (the one with SMW on a separate cart)... if that tells you anything.

Anyway, I just tried with a 9V power supply, and it seems to have made no difference in the slight image bend. I'm not sure what I'll do now, but sadly, I'm probably leaning toward returning the switch. I think this is a great project though, and I think you're doing something that's going to be really excellent for a lot of people. I'm just sad that it may not work for my needs at this point. If I can capture anything else that would help you test before I return it, please let me know.


I had the opposite problem where my snes and n64 would not work with the sync stripper turned on when using csync cables. Worked fine directly to the xrgb-mini, but not with the switch in-between. Turned out it was the 120v power supply that i had bought for the xrgb-mini. I think it was supplying less current than it said it was supposed to. Using the 100v power supply that came with it solved the problem. If you aren't using the original power supply with your xrgb-mini, you could the one it came with to see if it corrects the problem of having to use the sync stripper on the switch.


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 Post subject: Re: gscartsw: automatic 8:1 SCART-RGB switch
PostPosted: Wed Aug 27, 2014 2:13 am 


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mickcris wrote:
I had the opposite problem where my snes and n64 would not work with the sync stripper turned on when using csync cables. Worked fine directly to the xrgb-mini, but not with the switch in-between. Turned out it was the 120v power supply that i had bought for the xrgb-mini. I think it was supplying less current than it said it was supposed to. Using the 100v power supply that came with it solved the problem. If you aren't using the original power supply with your xrgb-mini, you could the one it came with to see if it corrects the problem of having to use the sync stripper on the switch.


I'm using the power supply that came with the Framemeister.


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 Post subject: Re: gscartsw: automatic 8:1 SCART-RGB switch
PostPosted: Wed Aug 27, 2014 2:33 am 


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Forks wrote:
mickcris wrote:
I had the opposite problem where my snes and n64 would not work with the sync stripper turned on when using csync cables. Worked fine directly to the xrgb-mini, but not with the switch in-between. Turned out it was the 120v power supply that i had bought for the xrgb-mini. I think it was supplying less current than it said it was supposed to. Using the 100v power supply that came with it solved the problem. If you aren't using the original power supply with your xrgb-mini, you could the one it came with to see if it corrects the problem of having to use the sync stripper on the switch.


I'm using the power supply that came with the Framemeister.


Did you try adjusting the sync setting on the framemeister? You may have said that above and i might have missed it. Not sure why your SNES would need it adjusted, but you can try to set it a bit higher than the default setting of 9 to see if it helps.


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 Post subject: Re: gscartsw: automatic 8:1 SCART-RGB switch
PostPosted: Wed Aug 27, 2014 3:01 am 


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i need this
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 Post subject: Re: gscartsw: automatic 8:1 SCART-RGB switch
PostPosted: Wed Aug 27, 2014 10:44 am 



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I just heard back from retro console accessories and the nes cable she made has a 5V installed and a wire connected to pin 8 with a resistor going from pin 8 to pin 16. I'll have to take pictures of what the picture (or lack of) that appears with the gscartsw. It's the only cable out of 7 that doesn't work now but did work with the bandridge.

She offered for me to send it back to check but if that's the case and all is wired correctly, any other idea of what could be causing it to not work with the gscartsw?


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 Post subject: Re: gscartsw: automatic 8:1 SCART-RGB switch
PostPosted: Wed Aug 27, 2014 11:15 am 


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Can I ask what capture hardware you are using Forks?
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 Post subject: Re: gscartsw: automatic 8:1 SCART-RGB switch
PostPosted: Wed Aug 27, 2014 12:24 pm 


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Taiyaki wrote:
I just heard back from retro console accessories and the nes cable she made has a 5V installed and a wire connected to pin 8 with a resistor going from pin 8 to pin 16. I'll have to take pictures of what the picture (or lack of) that appears with the gscartsw. It's the only cable out of 7 that doesn't work now but did work with the bandridge.

She offered for me to send it back to check but if that's the case and all is wired correctly, any other idea of what could be causing it to not work with the gscartsw?

As I've said, make sure there is +5V on pin 8. It's impossible to predict by photo :).
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 Post subject: Re: gscartsw: automatic 8:1 SCART-RGB switch
PostPosted: Wed Aug 27, 2014 2:15 pm 


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BuckoA51 wrote:
Can I ask what capture hardware you are using Forks?


I'm using AVerMedia U3 Extreme, with the software that comes with it (ReCentral). An HDMI splitter splits it to my TV and to the capture device, since it doesn't have HDMI pass-through.


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 Post subject: Re: gscartsw: automatic 8:1 SCART-RGB switch
PostPosted: Wed Aug 27, 2014 4:27 pm 


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Ok cool. For the image centring problem you could try an Extron interface, it won't work with interlace though, only 240p and 480p and not necessarily on every system.
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 Post subject: Re: gscartsw: automatic 8:1 SCART-RGB switch
PostPosted: Wed Aug 27, 2014 8:33 pm 



Joined: 04 Apr 2014
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I've spent around 8 hours on the gscartsw so far and have just had the color on the picture change to a redder tone. This is similar to what the bandridge did although with the bandridge it was strange as the colors faded progressively, here it happened immediately. Turning on and off the monitor did nothing, the on off switch of the lm1881 made no difference either, but turning off the console and powering it on again returned the colors to normal. I have recently changed my scart out to one with audio outs so I doubt that's causing the problem (with the bandridge this used to happen with another scart out).

I have two bvm's so I could try changing the video board to the other's if anybody thinks the monitor is to blame but I think it's unlikely (or could it be?).


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 Post subject: Re: gscartsw: automatic 8:1 SCART-RGB switch
PostPosted: Wed Aug 27, 2014 8:43 pm 


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Taiyaki wrote:
I've spent around 8 hours on the gscartsw so far and have just had the color on the picture change to a redder tone. This is similar to what the bandridge did although with the bandridge it was strange as the colors faded progressively, here it happened immediately. Turning on and off the monitor did nothing, the on off switch of the lm1881 made no difference either, but turning off the console and powering it on again returned the colors to normal. I have recently changed my scart out to one with audio outs so I doubt that's causing the problem (with the bandridge this used to happen with another scart out).

I have two bvm's so I could try changing the video board to the other's if anybody thinks the monitor is to blame but I think it's unlikely (or could it be?).

I'd blame the monitor. Manual Bandridge switch doesn't have anything inside. There are 5 mechanical switches each of them connects all 21 or so SCART pins and disconnects the rest. So basically Bandridge sets up direct physical connection for your RGBS and Audio lines.
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 Post subject: Re: gscartsw: automatic 8:1 SCART-RGB switch
PostPosted: Wed Aug 27, 2014 10:44 pm 



Joined: 04 Apr 2014
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superg wrote:
I'd blame the monitor. Manual Bandridge switch doesn't have anything inside. There are 5 mechanical switches each of them connects all 21 or so SCART pins and disconnects the rest. So basically Bandridge sets up direct physical connection for your RGBS and Audio lines.


Ok great, I'll swap the video boards that have the rgb and sync connections (they slide in and out in the back). Hopefully problem will be solved.


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 Post subject: Re: gscartsw: automatic 8:1 SCART-RGB switch
PostPosted: Tue Sep 02, 2014 11:58 pm 



Joined: 02 Sep 2014
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superg, please add me to the waiting list for a future JP21 version as well. I'm need this in my life :D


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 Post subject: Re: gscartsw: automatic 8:1 SCART-RGB switch
PostPosted: Wed Sep 03, 2014 7:28 pm 


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Quote:
I've spent around 8 hours on the gscartsw so far and have just had the color on the picture change to a redder tone.


Sounds a lot like what happens when one of the pins on the SCART isn't making good contact. Check your cables make sure none of the pins have been pushed in slightly.
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 Post subject: Re: gscartsw: automatic 8:1 SCART-RGB switch
PostPosted: Wed Sep 03, 2014 7:57 pm 



Joined: 04 Apr 2014
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BuckoA51 wrote:
Quote:
I've spent around 8 hours on the gscartsw so far and have just had the color on the picture change to a redder tone.


Sounds a lot like what happens when one of the pins on the SCART isn't making good contact. Check your cables make sure none of the pins have been pushed in slightly.


Thanks. Ever since changing the video board on the BVM this has stopped happening (about 10h of gaming since I changed). Might have been the board not sure.


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 Post subject: Re: gscartsw: automatic 8:1 SCART-RGB switch
PostPosted: Thu Sep 04, 2014 12:12 pm 


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kiun added.
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 Post subject: Re: gscartsw: automatic 8:1 SCART-RGB switch
PostPosted: Mon Sep 08, 2014 12:25 am 


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Hey Forks,

I've just checked fat SNES US with switch and it works well with lm1881 turned OFF.
Please check your cable (you should have there three 220uF capacitors and 180Ohm resistor)
Also make sure your SNES power supply provide enough voltage, I've just had seen visual problems using cheap impulse power supply.
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