JVC TM-H and DT-V thread

[fernan1234]

If i use a RetroTINK 2x to a HDMI - RGB comverter, will it kkept the 480i during all the chain to the TV ? Will it introduce lag ?

If you set the 2X to passthrough mode, the input will be the same as the output, even 240p/480i switches. I don't think anyone has taken exact measurements for this kind of chain, but in principle it can be assumed to be near instant, practically lagless conversion.

[mimylovesjapan]

ok ! that’s great ! I ll buy the Retrotink then, maybe next month because i am out of money now ^^
Thanks for the advices !

I also have a DVDO edge somewhere at home. I think it still working. Maybe it can also do this job ? As it has video and s-video input… but it maybe not be able to output 480i. I will do some tests.

Do you have recommandation for HDMI -> RGB converter ?

[kitty666cats]

ok ! that’s great ! I ll buy the Retrotink then, maybe next month because i am out of money now ^^
Thanks for the advices !

I also have a DVDO edge somewhere at home. I think it still working. Maybe it can also do this job ? As it has video and s-video input… but it maybe not be able to output 480i. I will do some tests.

Do you have recommandation for HDMI -> RGB converter ?

https://www.ebay.com/itm/134695693048

This one is quite nice, since you need one with external power for Sony consoles

https://www.ebay.com/itm/126141982873

I can’t speak on this one with certainty, but it also seems like it could be a HDFury 3 clone, minus a couple features…? If curious, I would just message them asking if the unpictured side has a power connector (probably some small 5V mini or micro USB, I’d bet)

[mimylovesjapan]

Thank you for your help Kitty !
The first adapter is really cheap ! But the description doesn’t match to the product… it says VGA to HDMI…
And also, would it be able to passthrough 240p ?

I am also searching for a cable to convert RGBS scart to RGBS BNC, with a clean Csync to feed my extron 203rxi ! Do you have any suggestion ?
Thank you again !

Ps : and yes ! curious about the hd fury 3 clone… does it worth ?

[mimylovesjapan]

finally took the hd fury clone ^^ the seller did it for 7,5 $ !
Let’s try it ! I will give you feedback

[kitty666cats]

Thank you for your help Kitty !
The first adapter is really cheap ! But the description doesn’t match to the product… it says VGA to HDMI…
And also, would it be able to passthrough 240p ?

I am also searching for a cable to convert RGBS scart to RGBS BNC, with a clean Csync to feed my extron 203rxi ! Do you have any suggestion ?
Thank you again !

Ps : and yes ! curious about the hd fury 3 clone… does it worth ?

It’s def a HDMI -> VGA; seller titled it wrong.

But now I get to watch the exciting journey to see if this thing is indeed a clone or just heavily inspired lol

~~~~~~~~~~

Also - do you mean BNC (source; leaving the Extron) to male SCART (destination i.e. monitor, scaler, etc) RE: the 203xi…? Because ‘feeding’ that thing would mean a VGA connector, not BNC. Below I will detail the Extron puking (or pooping) out SCART

If so, RGC UK & wookieewin will both re-wire their male SCART to BNC cable for that direction if you contact them along with your order.

Clarify that you do, indeed, want the 470ohm resistor in it as well - they’d probably do that anyway, but it saves them the trouble of potentially asking.

…in the event you meant SCART to VGA, not BNC, then here you go:

https://www.retroupgrades.co.uk/product ... a-adapter/

You really don’t need the shell, at all, unless you are a stickler for cosmetics heh. If it doesn’t work with the switch turned either way, plug in the micro USB and flick the switch to whichever side the sync stripper is.

[mimylovesjapan]

Thank you for your reply ! Yes I was also curious for the clone ^^

No. For the BNC cable, it’s for connecting directly old consoles to the Extron, then to a PVM accepting RGBS in BNC (accepting only 240p).
For now I am using a chinese adapter rewiring the scart to rgbs wires with possibility to adjust H and V. But feeding the extron after the chinese adapter results to nothing… the extron doesn’t recognize the csync signal. I imagine that I need a cleaner and powerful c-sync signal to feed the extron.

Edit : the Scart2VGA you mention would be perfect then to connect consoles to Extron directly ?

[fernan1234]

For now I am using a chinese adapter rewiring the scart to rgbs wires with possibility to adjust H and V. But feeding the extron after the chinese adapter results to nothing… the extron doesn’t recognize the csync signal. I imagine that I need a cleaner and powerful c-sync signal to feed the extron.

Those cables are probably just passing along the composite video sync that your console cables use. Most Extron equipment requires clean sync (which can be video level or TTL), and cannot work with composite video sync or luma sync.

The monitor itself does work with all these types of sync though, so you can simply connect them directly using RCA to BNC plug converters. However, you're actually on the right track using an Extron, because they output TTL sync which largely resolves most sync quirks that these monitors can have (such as infamous 240p wobble), but the catch is that you need a sync stripper in your cables or somewhere in between the consoles and the Extron.

If you have an OSSC or retrotink lying around, a funny workaround would be to connect your consoles directly to them, set them to passthrough mode, and then use the HDMI to VGA/YUV converter, and then you could skip the Extron (unless you were also using it as a 3-input switch box).

[mimylovesjapan]

Thank you fernan for your explanation !
Yes ! I will try both technique and compare them !

Then
1. Console - Ossc - hdmi to vga - Screen
2. Console - Scart2vga ? - Extron 203rxi - Screen

Is that correct ?

[fernan1234]

Sounds right. A scart2vga should also output sync the Extron can work with. Give both of those chains a try, if one gives you trouble try the other one.

[mimylovesjapan]

Thank you again

[kitty666cats]

That device that can adjust the image position has a button for a sync stripper, so yeah you may possibly have been able to connect to the 203Rxi with it. But the 203Rxi has those controls anyway, is far more reliable, and the SCART2VGA is good quality too. I’ve heard the image shift devices can be iffy

[mimylovesjapan]

No, the chinese adapter, even when pressing the button is not working with the extron... to bad... I will try the adapter you recommended soon
For now : I finally get RGB board for the monitor !
I tried to connect directly, without any converter :

- dreamcast, in 480p. So beautiful ! I was blow by the quality of the screen !
I did a little video :
https://youtu.be/ai1Q49fy3l0

480i -> needs processing

- megadrive, 240p, perfect !

- PS1, 240p/480i needs image processing...

I also get my PS3 working in 1080i through the H-SDI in (thanks to a HDCP stripper) :
so beautiful, but RGB lines up are a little bit enoying. I need a wide frame)

[fernan1234]

480i -> needs processing

Curious what you mean by this. 480i via RGB should work with no problems, and should look great (IMO even better than 480p).

Also if you get a 16:9 mask, be extremely careful when placing it on and taking it off. Those masks are the easiest ways to damage the coating on the screen.

[mimylovesjapan]

Yes... I don't know why 480i doesn't work well...
maybe because 480p is in RGBHV and 480i in RGBS ? Maybe the cable I use switch like that between p and i ?
At first I was searching for a monitor for 480p sources (dreamcast, PS2 games in 480p, etc...), then I am very happy with that !
Long time ago, I connected a PC CRT screen to the dreamcast, and some times LCD screen, but never have this crispness with my dreamcast ! So happy ^^

I will be careful if I get a wide frame. But so hard to find cheap one (so expensive on net...)
No one tried a 3D print ?

Also, I am very no one tried to clone the video/S-video board... as many people would like to have it...

Edit :

tried again PS1 : good rending, but a very little wooble effect I noticed on some games. PS1 light gun is working perfectly in time crisis in RGB !

Dreamcast in 480i is working well, but flag effect on the top of screen !

[salolinkpdig8]

For the flag effect, use an extron device and flip the serr switch up, it will fix it.

[mimylovesjapan]

Yes ! Thanks ! I am waiting for my Scart to VGA to connect my consoles to my Extron !
I will test it soon !

[fernan1234]

Yes ! Thanks ! I am waiting for my Scart to VGA to connect my consoles to my Extron !
I will test it soon !

The problem probably has something to do with the SCART cable. With Dreamcast I never had problems with any kind of "VGA" (RGBHV) cable or box, either with 480p or 480i, without needing serration pulses with an Extron.

[mimylovesjapan]

Yes, I think also... It's a RGBS cable switching between 480p and 480i... I suspect that the 480i signal is not really clean... But the same cable in 480p works perfectly, then it's OK for now ! Because I prefer 480p experience on Dreamcast. I wll certainly buy a real VGA box someday to see if there is a quality difference between RGBS and VGA for dreamcast.

[Fed]

The SCART cable is combining the separate V and H sync into one, depending on how that sync combination is done and how your monitor can handle it, it can result in screen flagging.

[mimylovesjapan]

Ok guys !
I got all the adapters/cables to test all my consoles on the DT-V1710C(G) !
Thanks for your help !
I am writing an Excel sheet to have a good understanding of all the connexion possible.
I can be also interesting for other users.
How could I upload it on the forum ?

[mimylovesjapan]

Found that my XPC-4 does a fantastic work in passing OSSC 240p through to the DT-V1710.

Here are my research until now for perfection with DT-V1710 monitor !
If you can help me to complete it, don't hesitate to PM me !

It's also on my website (https://retro-visual.jimdofree.com/)

[charlizardon]

Hello everyone! JVC DT-V1710CG, in 720p and 1080i modes the image on the left is cut off for some reason (photo attached: https://imgur.com/a/NfUw6ea). Has anyone encountered this? Are there any options to fix it?

I've been having the same problem with my 1710 when outputting/passing through 720p or 1080i using three different DACs, including the Extra AV out card on the OSSC Pro. Interestingly enough, my generic HDMI to component adapter doesn't have this issue.

Edit: Was able to center the image by altering the Adv. disp timings on the OSSC Pro.

[mimylovesjapan]

Did you try HDMi through HD-SDI ?

[charlizardon]

Did you try HDMi through HD-SDI ?

I don't have an HD-SDI card to try and would be hesitant to go that route regardless, but I was eventually able to get a centered image using the OSSC Pro extra AV out by tinkering with the Adv. disp timings.

[mimylovesjapan]

That’s great !

[mimylovesjapan]

As the connection between console to TV through extron had no meaning I did an update of my Excel sheet.
I also noticed that OSSC does a great job for flag, but not espacially for jitters. adding the extron after the OSSC through XPC-4 did a perfect job.
Now I think I can get the best picture possible on the DT-V1710C(G) !

Here is the updated file :
https://retro-visual.jimdofree.com/app/ ... 1736748780

[carlocgc]

Hi all, I have a DT-V1900CG that is reporting error with input A blinking which according to the the manual is a problem with the signal pwb assembly.
I will be reseating all the boards on the 1900, cleaning all contacts etc and checking for drysolder on the boards as a first step.
I also have a DT-V1710CG on hand that has no issues does anyone know if it would be safe to try the signal pwb boards from the 1710 in the 1900 for the next steps of trouble shooting?

[fernan1234]

I also have a DT-V1710CG on hand that has no issues does anyone know if it would be safe to try the signal pwb boards from the 1710 in the 1900 for the next steps of trouble shooting?

Yeah you can swap the boards out, just make sure you also swap the small socketed chips on each one so the settings are transferred over to the correct monitor. I've only done 1710 -> 1910 board swaps, not 1900, but at worst it just won't work, shouldn't break anything. As a bonus you'll likely end up with a newer firmware on the 1900, which unlocks some functions on RGB inputs.

[carlocgc]

I also have a DT-V1710CG on hand that has no issues does anyone know if it would be safe to try the signal pwb boards from the 1710 in the 1900 for the next steps of trouble shooting?

Yeah you can swap the boards out, just make sure you also swap the small socketed chips on each one so the settings are transferred over to the correct monitor. I've only done 1710 -> 1910 board swaps, not 1900, but at worst it just won't work, shouldn't break anything. As a bonus you'll likely end up with a newer firmware on the 1900, which unlocks some functions on RGB inputs.

Thank you very much