Extron RGB + Jrok RGB Mini ?

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Geister 85'
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Joined: Sat Mar 08, 2014 1:09 am

Extron RGB + Jrok RGB Mini ?

Post by Geister 85' »

Greetings retro enthusiasts, i come from Mexico and i'd like to share with you my passion for retro gaming

Seeing as most people here are very knowledgeable about video related themes, i came to ask for your ideas on a setup i have been thinking of lately, let me explain my current situation.

I used to play with the PC + Extron VSC 100 + Extron RGB 201rxi + Sony PVM setup.
I also own a TV: FD Trinitron KV24FV12 with only S-Video or Composite input.

Recently my Sony PVM died on me after 6 months of daily usage, i have to say that getting one of those in this country is really hard and expensive, Sony PVMs are still considered High End Medical or Video Production Equipment in fact it is less expensive to import one from the USA at prices that go between $400 to $700. I have nowhere that much money to buy another one.

I was considering buying a JROK RGB mini (RGBS to S-Video/Composite Encoder) and using it to convert the output RGBS signal of the Extron RGB to S-Video, so i can use my FD Trinitron as replacement for the PVM

For what i understand, the JROK RGB mini does not scale or modifies the picture quality of the input signal.
Here is what the internet says about it.

Image

I also have another candidate: Ambery RGBS to S-Video/Composite converter.These are the technical aspects i found:

Image

For what the article on http://scanlines.hazard-city.de/ says, the Extron RGB achieves 240p in a rather odd manner, it also adds that this way of outputting 240p is not compatible with the more Modern CRTs with digital sync processing and also is incompatible with scalers.
Using a sync processing dip switch on the back, an incoming 480i RGB signal can be converted to 240p by adding a simple line offset. This simply tells the monitor to remove the line offset between the fields, handling the interlaced fields like progressive frames instead. This is by no means an official feature of those interfaces, but merely an accident, since the units were simply not created for interlaced 15khz signals. There are two caveats though: first this only works on CRTs which don't apply digital processing. It works great on arcade cabs, Sony PVM and BVM sets, most 90s TV sets, but likely not on newer TV sets and not if you want to feed your newly gained 240p signal into another upscaler. Second, if your source isn't a linedoubled 240p title, but a true hi-res game, then the resulting image will be 240p, but it will show a certain amount of flicker.
So can anyone tell me if this idea would work ?

I am open to hear more solutions to get 240p out of a PC and using my FD Trinitron as a display.
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matrigs
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Re: Extron RGB + Jrok RGB Mini ?

Post by matrigs »

try to find an extron super emotia.

it has s-video output and can be switched between 240p/480i output. also has size and position controls. i tried it on my crt and the picture was mighty fine. it also has rgbs output in case you will buy another pvm.
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Fudoh
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Re: Extron RGB + Jrok RGB Mini ?

Post by Fudoh »

I would second that, especially since there's absolutely no guarantee that the 240p "trick" of the Extron interface will survive the conversion to s-video. With an Emotia you can replace your VSC,
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Xyga
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Re: Extron RGB + Jrok RGB Mini ?

Post by Xyga »

Just my 2c: don't buy a Super Emotia without its original power supply.
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beatsgo
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Re: Extron RGB + Jrok RGB Mini ?

Post by beatsgo »

Xyga wrote:Just my 2c: don't buy a Super Emotia without its original power supply.
Agreed, unless you happen to have a midi cord and computer PSU collecting dust.
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