RGBHV to RGBs cable/adapter/something for BVM?

[emuola]

I have a BKM-25P board in my BVM. A great board, as it can take composite video, Y/C and RGB simultaneuously The only problem is that the RGB part is RGBs (sync on green). The default RGB interface of the BVM is reserved for my Amigas only (as the image quality is a tad better compared to the one fed through the Sync Strike). So, as I hook up all the other RGB computers/consoles via Sync Strike (sync cleaner/stripper), to the BKM-25P, I need to convert the outputted H+V syncs to sync on green.

I know about Extron RXi:s, but it seems the task is pretty trivial. There are some schematics laying around the net, but I decided to ask, if there's something (not too expensive), I haven't already heard of?

Thanks!

[Ikaruga11]

I was told only the default RGB/YPbPr board included with D-Series BVMs can do RGB.

[nmalinoski]

I was told only the default RGB/YPbPr board included with D-Series BVMs can do RGB.

The default RGB interface of the BVM is reserved for my Amigas only

[Is there] something (not too expensive), I haven't already heard of?

If you're switching RGBHV, and you have the space, I would suggest one or more of Extron's SW series of VGA switchers to hook up your Amigas and your other RGBHV computers/consoles simultaneously to the RGBHV input on your BVM.

You can find 4- and 6-input models used on eBay for $20 to $50 USD, give or take. They support automatic switching, can be daisy chained, and the Ars models will do audio with 3.5mm TRS inputs and a single Phoenix output. As a bonus, they will also switch other formats, like RGBS and RGsB; as well as composite, S-Video, and YPbPr, assuming you get/build the proper adapters.

[Dochartaigh]

I would suggest one or more of Extron's SW series of VGA switchers to hook up your Amigas and your other RGBHV computers/consoles simultaneously to the RGBHV input on your BVM

Don't know if I'm understanding you correctly, but BVM's won't take RGBHV - it needs to be converted to RGBS (or even RGsB). A simple $20 Extron RGB interface will take care of that (although I like the more feature rich, albeit much more expensive, RGB Rxi 203).

[nmalinoski]

I would suggest one or more of Extron's SW series of VGA switchers to hook up your Amigas and your other RGBHV computers/consoles simultaneously to the RGBHV input on your BVM

Don't know if I'm understanding you correctly, but BVM's won't take RGBHV - it needs to be converted to RGBS (or even RGsB). A simple $20 Extron RGB interface will take care of that (although I like the more feature rich, albeit much more expensive, RGB Rxi 203).

Oh, derp; yes, I misread. You're right; an Extron interface would be needed to convert RGBHV to RGBS or RGsB. It could either be configured for RGsB and hooked into the second card as originally requested, or it could be configured for RGBS and put between the RGBS input on the BVM and one of Extron's VGA switches.

[buttersoft]

Is the s in RGsB anything more than a composite sync pulse added to the green channel?

[nmalinoski]

Is the s in RGsB anything more than a composite sync pulse added to the green channel?

Nope. You're correct; it's just sync on green.

[emuola]

Don't know if I'm understanding you correctly, but BVM's won't take RGBHV - it needs to be converted to RGBS (or even RGsB). A simple $20 Extron RGB interface will take care of that (although I like the more feature rich, albeit much more expensive, RGB Rxi 203).[/quote]

This is really great info, thank you Any possibility to give me a specific example of such a $20 Extron interface? (model number of something like that):) The Rxi's seem to go for anything between $60 to $100. Unfortunately there seems to be none available in EU (ebay.co.uk, ebay.de) and the shipping from states seems to be really, really expensive, more than the actual item itself And then there's the risk of customs.

[Dochartaigh]

This is really great info, thank you Any possibility to give me a specific example of such a $20 Extron interface? (model number of something like that):) The Rxi's seem to go for anything between $60 to $100. Unfortunately there seems to be none available in EU (ebay.co.uk, ebay.de) and the shipping from states seems to be really, really expensive, more than the actual item itself And then there's the risk of customs.

I can't comment on eBay in the UK, but I would just browse eBay in the USA and see if they'll ship internationally (you can always message them too - some don't mind shipping internationally even if they don't say so in the ad). This one linked to below is $11 USD shipped in the states = 7.90 GBP. Even if shipping was like $30 it still sounds like a good deal if you can't find them in the UK.

I just looked up the specs *very* quickly (i.e. you should research some more), and it seems to take in RGBHV (VGA) and output RGBS or RGsB. Even has the jumpers my fancy Rxi model has (which I think I use the SERR to take the bow out of the top of the image from my Windows MAME PC with CRT Emudriver).

https://www.ebay.com/itm/Extron-RGB-190 ... Sw5Ktac0lm

[muggsy]

I've just grabbed a 190f myself to combine RGBHV into RGBS for my grooveymame setup

Sent from my SM-G900F using Tapatalk

[buttersoft]

I can't comment on eBay in the UK, but I would just browse eBay in the USA and see if they'll ship internationally (you can always message them too - some don't mind shipping internationally even if they don't say so in the ad). This one linked to below is $11 USD shipped in the states = 7.90 GBP. Even if shipping was like $30 it still sounds like a good deal if you can't find them in the UK.

https://www.ebay.com/itm/Extron-RGB-190 ... Sw5Ktac0lm

The problem with this one is that it doesn't come with the power adapter. The branded adapters are expensive, and if you want to use a third-party one you need the right little 2-pin connector (i've heard it called a phoenix connector, and i've seen 4- and 5-pin variants in the wild, but that's the extent of my knowledge).

Finally, be aware that the OEM power supplies are very well regulated, and the 190's tend to become sensitive over time. If you're not getting sync, you can try either using a better-regulated supply, or adding a big 16V electrolytic cap (3300uF or higher) across the power supply terminals +ve to +ve. This is without needing to open the unit, of course.

[Kez]

I have managed to pick up a few RXis on eBay UK in the past. They are not very common but they pop up every once in a while and normally not crazy expensive (£30 or so).

[Dochartaigh]

The problem with this one is that it doesn't come with the power adapter. The branded adapters are expensive, and if you want to use a third-party one you need the right little 2-pin connector (i've heard it called a phoenix connector, and i've seen 4- and 5-pin variants in the wild, but that's the extent of my knowledge).

Finally, be aware that the OEM power supplies are very well regulated, and the 190's tend to become sensitive over time. If you're not getting sync, you can try either using a better-regulated supply, or adding a big 16V electrolytic cap (3300uF or higher) across the power supply terminals +ve to +ve. This is without needing to open the unit, of course.

Thank you for your detailed breakdown and all, but that was simply an example from a 10 second eBay search and the first to come up (complete with the caveat I gave him to research more...). He can pickup the one for $17 instead of $11 which comes with the J17 power supply and even has the Phoenix audio connector still on it... the point I was making is these are cheap even with international shipping (once you find a company which will ship internationally which honestly shouldn't be that hard).

[buttersoft]

Thank you for your detailed breakdown and all, but that was simply an example from a 10 second eBay search and the first to come up (complete with the caveat I gave him to research more...). He can pickup the one for $17 instead of $11 which comes with the J17 power supply and even has the Phoenix audio connector still on it... the point I was making is these are cheap even with international shipping (once you find a company which will ship internationally which honestly shouldn't be that hard).

I did not intend that to sound like criticism, just flagging something to look out for. I've seen a few people buy these sans adapter and then have no clue what to do next.

[emuola]

I've just grabbed a 190f myself to combine RGBHV into RGBS for my grooveymame setup

Sent from my SM-G900F using Tapatalk

I can't comment on eBay in the UK, but I would just browse eBay in the USA and see if they'll ship internationally (you can always message them too - some don't mind shipping internationally even if they don't say so in the ad). This one linked to below is $11 USD shipped in the states = 7.90 GBP. Even if shipping was like $30 it still sounds like a good deal if you can't find them in the UK.

https://www.ebay.com/itm/Extron-RGB-190 ... Sw5Ktac0lm

The problem with this one is that it doesn't come with the power adapter. The branded adapters are expensive, and if you want to use a third-party one you need the right little 2-pin connector (i've heard it called a phoenix connector, and i've seen 4- and 5-pin variants in the wild, but that's the extent of my knowledge).

Finally, be aware that the OEM power supplies are very well regulated, and the 190's tend to become sensitive over time. If you're not getting sync, you can try either using a better-regulated supply, or adding a big 16V electrolytic cap (3300uF or higher) across the power supply terminals +ve to +ve. This is without needing to open the unit, of course.

I have managed to pick up a few RXis on eBay UK in the past. They are not very common but they pop up every once in a while and normally not crazy expensive (£30 or so).

The problem with this one is that it doesn't come with the power adapter. The branded adapters are expensive, and if you want to use a third-party one you need the right little 2-pin connector (i've heard it called a phoenix connector, and i've seen 4- and 5-pin variants in the wild, but that's the extent of my knowledge).

Finally, be aware that the OEM power supplies are very well regulated, and the 190's tend to become sensitive over time. If you're not getting sync, you can try either using a better-regulated supply, or adding a big 16V electrolytic cap (3300uF or higher) across the power supply terminals +ve to +ve. This is without needing to open the unit, of course.

Thank you for your detailed breakdown and all, but that was simply an example from a 10 second eBay search and the first to come up (complete with the caveat I gave him to research more...). He can pickup the one for $17 instead of $11 which comes with the J17 power supply and even has the Phoenix audio connector still on it... the point I was making is these are cheap even with international shipping (once you find a company which will ship internationally which honestly shouldn't be that hard).

Thank you for your detailed breakdown and all, but that was simply an example from a 10 second eBay search and the first to come up (complete with the caveat I gave him to research more...). He can pickup the one for $17 instead of $11 which comes with the J17 power supply and even has the Phoenix audio connector still on it... the point I was making is these are cheap even with international shipping (once you find a company which will ship internationally which honestly shouldn't be that hard).

I did not intend that to sound like criticism, just flagging something to look out for. I've seen a few people buy these sans adapter and then have no clue what to do next.

This is really great info, thank you Any possibility to give me a specific example of such a $20 Extron interface? (model number of something like that):) The Rxi's seem to go for anything between $60 to $100. Unfortunately there seems to be none available in EU (ebay.co.uk, ebay.de) and the shipping from states seems to be really, really expensive, more than the actual item itself And then there's the risk of customs.

I can't comment on eBay in the UK, but I would just browse eBay in the USA and see if they'll ship internationally (you can always message them too - some don't mind shipping internationally even if they don't say so in the ad). This one linked to below is $11 USD shipped in the states = 7.90 GBP. Even if shipping was like $30 it still sounds like a good deal if you can't find them in the UK.

I just looked up the specs *very* quickly (i.e. you should research some more), and it seems to take in RGBHV (VGA) and output RGBS or RGsB. Even has the jumpers my fancy Rxi model has (which I think I use the SERR to take the bow out of the top of the image from my Windows MAME PC with CRT Emudriver).

https://www.ebay.com/itm/Extron-RGB-190 ... Sw5Ktac0lm

Thank you for your valuable advice I'll be hunting for the 190-series in Ebay.com and Ebay.co.uk/de. What great piece of hw for the price. The psu will not be a problem, I have a electronics whole sale store nearby carrying tens of thousands of components (also the weird connectors):)

[Dochartaigh]

Thank you for your valuable advice I'll be hunting for the 190-series in Ebay.com and Ebay.co.uk/de. What great piece of hw for the price. The psu will not be a problem, I have a electronics whole sale store nearby carrying tens of thousands of components (also the weird connectors):)

I was checking out power supplies too - the 12v models (which many of the Extron units like these use - either that or 15, some are 12-15) are $10 or less shipped (in the USA at least) - super cheap as well.

[chriz74]

I have a BKM-25P board in my BVM. A great board, as it can take composite video, Y/C and RGB simultaneuously The only problem is that the RGB part is RGBs (sync on green). The default RGB interface of the BVM is reserved for my Amigas only (as the image quality is a tad better compared to the one fed through the Sync Strike). So, as I hook up all the other RGB computers/consoles via Sync Strike (sync cleaner/stripper), to the BKM-25P, I need to convert the outputted H+V syncs to sync on green.

I know about Extron RXi:s, but it seems the task is pretty trivial. There are some schematics laying around the net, but I decided to ask, if there's something (not too expensive), I haven't already heard of?

Thanks!

Isn't RGBS composite sync (pins 19, 20) while RGSB sync on green?

[nmalinoski]

...the RGB part is RGBs (sync on green).

Isn't RGBS composite sync (pins 19, 20) while RGSB sync on green?

You are correct, sir; RGBS puts composite sync on a dedicated line, and RGsB muxes composite sync on the green line.