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/vr/ - Retro Games

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2324729 No.2324729 [Reply] [Original]

Are there any RGBHV (VGA) to YPbPr (Component) transcoders I can get for cheap? I'm looking for a transcoder, not a converter.

Transcoders have no scaling, and no input lag, whereas converters have both of those problems.

I'm can also make one myself, as I'm fairly good at soldering, but I can't find the chips that the schematics call for. I'd prefer a premade solution though.

>> No.2324738

>Are there any RGBHV (VGA) to YPbPr (Component) transcoders I can get for cheap?
Yes, lots. They're all trash though. Actually all the transcoders left on the market are poor quality and cheap. May work for you depending on the signal you feed it.

>> No.2324749

>>2324738
Any schematics you recommend with easy-to-find chips?

>> No.2324753

>>2324749
There are none publicly available that are worthwhile.
We're talking about a dead standard. That and VGA to Component was rarely used.

What are you trying to do?

>> No.2324759

>>2324753
Hook up my PC to a WEGA Trinitron I'm getting.

>> No.2324765

>>2324759
Oh so 480i. Ya no idea if the transcoders will support that correctly. Thought you were talking about progressive.

>> No.2324784

>>2324729
Compared to what you could make your own for nothing is cheap. Any opamp with the right specs will do.
But your VGA port has component anyway. As long as you have a half decent GPU that doesn't lock you into a rate your TV can't handle all you need is a cable.

>> No.2324798

>>2324784
The signals between VGA and Component are different. I need a transcoder for that reason.

>> No.2324803

>>2324765
I don't see why not. My PC can output 15KHz no problem.

>> No.2324851

>>2324759

Find an old Radeon PCI card and use the TV-out.

>> No.2324857

>>2324803
The transcoders have problems with any resolution not 640x480p. And then you can have problems with signal strength and horizontal position.

>> No.2324862

>RGBHV
Yes, SCART-to-YUV transcoder is quite popular

>VGA
Are you trying to take a 1920x1080 @ 60hz and get an HDTV to display it as 1080p over component? Because that's not retro.

Just get an HDTV that has a VGA jack OR a video card that has HDMI.

>> No.2324865

>>2324862
RGBHV isn't scart.
And no HDTV has vga anymore.

>> No.2324874

>>2324865
>RGBHV isn't scart.
No but SCART is RGBHV and more. A SCART-to-YUV transcoder will definitely transcode 480p RGBHV into 480p Component. I've never tried sending an HDTV compliant signal to it to see if it comes out as an HD resolution that an HDTV can display.

>And no HDTV has vga anymore.
Okay well then either get an older HDTV or a newer video card, assuming that's what you're trying to do which - and let me say this again with emphasis this time - ISN'T RETRO

>> No.2324879

>>2324874
>No but SCART is RGBHV and more
Umm, no it's not.
>A SCART-to-YUV transcoder will definitely transcode 480p RGBHV into 480p Component.
I think you mean RGBS or RGSB

>either get an older HDTV
Would be a terrible idea.

>> No.2324882

>>2324865
Projectors still have VGA for the most part.

>> No.2324884

>>2324882
If you want to use a projector I guess.

>> No.2324895

>>2324851
I already have a card with S-Video out. I want to use component because it's the best signal I can get.

>>2324862
I'm taking either a 480i/448i or 240p/224p signal and transcoding it into YPbPr. I'm getting a Trinitron WEGA with YPbPr inputs.

As for the people saying SCART to YUV, which transcoder would you recommend? It should be pretty easy to convert VGA to SCART.

>> No.2324898
File: 46 KB, 399x283, SDV4-Product[1].gif [View same] [iqdb] [saucenao] [google]
2324898

>>2324879
>Implying RGBHV can't be turned into RGBS by literally splicing wires

>>2324895
SVideo is going to be very close to as good as Component in that situation - close enough that if your budget is tight and/or you don't have a bunch of time to waste building cables you just stick with it. However, if you DO want to build a VGA to SCART cable and you do want to learn about using Soft15khz or CRT_emudriver to push your sync down into the SD range or if you just want to be able to use the native SCART output on many retro consoles then pic related is the one most people buy. You can probably do it even cheaper if you build your own. I believe there are kits.

>> No.2324908

>>2324898
>Implying RGBHV can't be turned into RGBS by literally splicing wires
It can't. Judging by the greentext bullshit seems you missed your containment board.

>> No.2324921
File: 2.76 MB, 3264x2448, IMG_9067_zpsd82acbe4[1].jpg~orig.jpg [View same] [iqdb] [saucenao] [google]
2324921

>>2324908
More like OP should have asked us directly to start with

>> No.2324925

>>2324921
If your monitor can handle it, doesn't mean everything can. Combining horizontal and vertical like that isn't universal. And it doesn't make it RGBS. You're still feeding a RGBHV signal.

>> No.2324946

>>2324925
I'm hooking it up to a TV, not a monitor.

>> No.2324949

RGBHV to RGBS
http://arcadeforge.net/UMSA/UMSA-Ultimate-SCART-Adapter::57.html

Then RGBS to YPbPr
amzn.com/B004XSSDPO

>> No.2324950

>>2324946
A TV with BNC connectors... Ya don't think so.

>> No.2325065

I ended up just ordering a Radeon 4350 which has HDTV-out (Component) support through the DVI-I connector. It was cheaper than getting any kind of transcoder.

>> No.2325085

>>2324895
What kind of WEGA? Some of them have hdmi ports.

>> No.2325126

>>2324895
It's called S-Video but it's possible that it has extra pins to put out component video.

>> No.2325157

>>2325126
The enhanced ports usually have 7-pin or 9-pin. S-video can plug directly into the 7-pin one, so if he had one its probably that.

http://www.ebay.com/itm/ATI-nVIDIA-Video-Graphics-VGA-Card-7Pin-S-Video-to-HDTV-Component-Out-Adapter-/151033089004?pt=US_Video_Cables_Adapters&hash=item232a460bec

>> No.2325459

>>2324798
Guess that's why they made most VGA ports conveniently output component as well? I built transcoders for my consoles that have RGB. If I needed one to transcode from my computers I could easily just make one. But I don't so I didn't.

>> No.2325986

>>2325459
You do understand rgb and component are different and that the plug is just a plug?

>> No.2326131

>>2325986
You do understand I just said that in the post you replied to?
I really had no idea it was such a big secret that most video cards can output in either RGB or Component over the VGA port. Perhaps you're too young to be familiar with a video port too large to fit on a tablet?

>> No.2326156

>>2326131
The way you worded "Guess that's why they made most VGA ports conveniently output component as well?" doesn't really suggest you're talking solely about gpus. Sorry if what you originally meant was vga ports on a gpu and I misunderstood. Being that one guy suggested you can make RGBHV into RGBS just by combing HV... well ya.

>Perhaps you're too young to be familiar with a video port too large to fit on a tablet?
That is a problem these days but no.

>I built transcoders for my consoles that have RGB. If I needed one to transcode from my computers I could easily just make one. But I don't so I didn't.
But judging from that bit I'm going to assume you're the child here. Unless you'd like to post the schematic you use for this transcoder?

>> No.2326659

>>2326156
No point giving you my transcoder schematics for non VGA RGB to component. They all lack the circuit, to properly mix H and V and convert to the correct voltage before inserting on Y, which you'll need and clearly aren't going to be able to add yourself. And also because you're a dick who doesn't deserve any more help.

>> No.2326670

>>2326659

Cool, kid.

>> No.2326784

>>2326131
Any links to getting Component out of the VGA port? Is it just an option in the control panel/centre?

>> No.2327062
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2327062

>>2326784
You won't. Like getting SD RGB out of the VGA port you'll need hacked drivers to push the sync down below normal levels but also to change the output as well as a purpose-built cable. There was a guy in /crt/ who was working on drivers but last I saw they were still pretty alpha. At this point, you'll still want to just use Soft15khz and a RGB-to-Component transcoder.

The guy who said he could have just built a VGA to Component transcoder was bullshitting because you can't just transcode it if its sync is at the wrong frequency. MAYBE he was trying to transcode the VGA into 1080p over component for an HD display. That MIGHT be possible but I'm not sure and I have to assume that's not what he's talking about since it's not retro.

Furthermore, I am the person who said to just merge H and V sync and feed it to the Sync input on your transcoder. I can't personally say if it'll work or not when transcoded into component and fed to a consumer display but I CAN tell you that pretty much everyone with PVMs and arcade monitors does it.

The fact that a LOT of Euros seem to use pic related makes me think it doesn't work on native SCART TVs but I'd still be curious about someone's results on a US Component TV. To my knowledge no one has even ever tried.

>> No.2327140

>>2327062
>pretty much everyone with PVMs and arcade monitors
True. I do this to test shit, before building Viletim's combiner circuit which lowers the sync level a tad.

Thank you for the reply.

>> No.2327981 [DELETED] 

How do I shop for a CRT monitor? Besides size and inputs I've never really been able to find any useable specs that set one monitor apart from another, considering all craigslist finds are like 85hz 1024x768 at 17".

I'm looking for one for my brother who makes decent money but already has a QNIX QHD LCD, so I'd say I'm looking for something with a high static contrast ratio, accurate colors, and ideally shadow-mask, for $1-300 unless it isn't a substantial upgrade over the $10 craigslist finds.

>> No.2328010

Hi I am new to using CRTs and wanted to look for a way to hook up either my old HD-CRT TV or Sony Trinniton to my computer, but all of the cables I've found on Amazon have bad reviews claiming they're fake and what not. Is there any actual way to do this (convert analogue signal to digital, vice versa)?

>> No.2328312

>>2326784
For the physical connector part it's easiest to just buy a premade cable. For the control panel part you need to select a video mode that's compatible with your screen. Probably easiest if you just use something like powerstrip.

>>2327062
PVMs expect 5v on sync. Your TV may behave unexpectedly when it get's that much on an input designed for 0.3v.
Or maybe I'm bullshitting. You should try it.

>> No.2328367

>>2324921
Do you just plug component cables in? Those holes look a bit different.

>> No.2328490

>>2328010
>>2328367
Should really move this discussion to the /crt thread... >>2316873

>>2328312
Yeah, PC's output 5V+ on Sync. Thankfully i've only used it on PVMs.

>> No.2328502

>>2328312
What do you know, it looks like powerstrip can force component out VGA ports on graphics cards... I'm actually surprised