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 Post subject: Re: BVM-A20F1M Sega consoles Sync problems
PostPosted: Fri Apr 19, 2019 2:57 pm 



Joined: 13 Jul 2016
Posts: 76
All I can say is that I own a gscartsw_lite and I think it's an amazing piece of equipment, I noticed no image degradation at all.

If superg makes an upgrated version capable to solve BVM-A sync issues I would buy one for sure.


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 Post subject: Re: BVM-A20F1M Sega consoles Sync problems
PostPosted: Mon Dec 09, 2019 9:35 pm 


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Joined: 19 Feb 2017
Posts: 12
hello

has anyone been able to establish if the gscartsw is able to fix the sync issues with AES and SMS on an a-series BVM?

or even by means of some other device.

thanks


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 Post subject: Re: BVM-A20F1M Sega consoles Sync problems
PostPosted: Mon Dec 09, 2019 10:14 pm 


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Joined: 06 Jul 2014
Posts: 1255
Location: US, MI
asasra wrote:
hello

has anyone been able to establish if the gscartsw is able to fix the sync issues with AES and SMS on an a-series BVM?

or even by means of some other device.

thanks

SMS issue was fixed but nothing else.
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 Post subject: Re: BVM-A20F1M Sega consoles Sync problems
PostPosted: Mon Dec 09, 2019 10:25 pm 


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Joined: 19 Feb 2017
Posts: 12
thank you!


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 Post subject: Re: BVM-A20F1M Sega consoles Sync problems
PostPosted: Tue Jan 21, 2020 10:31 pm 



Joined: 13 Jul 2016
Posts: 76
I'll be buying an NTSC Megadrive and Dreamcast shortly.
I would very much appreciate if you could please share the serial ID and (ideally board revision) of the megadrive and dreamcast that have been tested to work on the BVM-A20F1M.


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 Post subject: Re: BVM-A20F1M Sega consoles Sync problems
PostPosted: Tue Jan 21, 2020 10:39 pm 


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Joined: 19 Feb 2017
Posts: 12
I would like to help, unfortunately my stuff is in storage in a different city :/


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 Post subject: Re: BVM-A20F1M Sega consoles Sync problems
PostPosted: Fri Feb 14, 2020 4:48 pm 



Joined: 13 Jul 2016
Posts: 76
I've made some progress here.

Consoles currently working on my BVM-A20F1M:

NES NTSC60Hz RGB Modded: Fully working with modders supplied cable.
SNES PAL 50/60Hz modded: Working with RGB using retrogaming cable sync on luma.
N64 PAL RGB Modded: Fully working, waiting for a moded N64 with deblur filer.
Neo-Geo AES: Working with composite, picture is skewed with RGB. An improvement could be to buy a S-Video cable (if anyone know where to find one please let me know).

New additions:
Sega Saturn Mk1 PAL 50Hz (Made in Indonesia S/N AD51022662): Working with RGB with the boxed cable.
Sega Dreamcast NTSC (S/N 058000042397): Working with composite and RGB with boxed cables. Allso fully working in 31KHz/480p!!! (using Sega Dreamcast PACKAPUNCH RGB 480p SCART cable from retrogaming cables). The dreamcast is AMAZING in 480p with the BVM-A20F1M. Interestingly when I toggle the 15KHz/576i switch it goes out of sync. Sync regeneration on my gscartgw does not help. It is really not much of an issue as most games including all the games I wanted to play support VGA mode (converted to 31Khz/480p throught this cable).

Consoles not working yet:
PAL Megadrive/PAL 32x: Out of sync with composite and RGB. Will try S-Video once S-video adapter for Sega Genesis/Mega Drive Model 1 in Taobao is back on stock. Another solution for RGB could be to buy a NTSC-J console.

Master System 2: Out of sync, a possible solution could be to buy a newer gscartsw version.


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 Post subject: Re: BVM-A20F1M Sega consoles Sync problems
PostPosted: Mon Feb 17, 2020 2:48 pm 



Joined: 13 Jul 2016
Posts: 76
Update: Not sure if rellevant to the discussion but my Everdrive 64 works correctly on my French RGB moded PAL N64 with N64 PAL games but all NTSC region games go out of sync with the BVM-A20F1M.

S2SDNES on my switchless 50/60HZ SNES plays all games from all regions just fine.

EDIT: Yes it is relevant. Everdrive N64 NTSC games work just fine on my Sony Triniton TV.


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 Post subject: Re: BVM-A20F1M Sega consoles Sync problems
PostPosted: Tue Feb 18, 2020 2:18 pm 


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Joined: 19 Feb 2017
Posts: 12
sorry nothing to add here, just wanted to say I'm interested in whatever comes out of this
all my shit is in storage and has to stay there for the foreseeable future :/


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 Post subject: Re: BVM-A20F1M Sega consoles Sync problems
PostPosted: Thu Feb 27, 2020 3:50 pm 



Joined: 13 Jul 2016
Posts: 76
Ok I've made some progress:

1- I can confirm that my japanese Playstation 1 syncs perfectly with the BVM-A20F1M and BKM-68x.

2- I’m very glad to report that the MicroConverter HDMI to SDI works on the BVM-A20F1M with BKM-62HS board running in HDSDI 444 YPBPR mode and my Nintendo Switch setup in 720p mode :) I have one SDI outcable connected to port 1 in of the BKM-62HS.

Image

So this raises the possibility of using OSCC or MicroTik to upscale 240p to 720p and run with full color palete. It is my belief (but could be wrong) that this setup would get us no input lag (I think this setup would add only 1 or two scanlines of lag, not frames).

Now all what’s left to do I believe is figure out how to make my OSCC output 720p so that it is accepteable for the BKM-62HS, Adam from OSCC is already looking into it.


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