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jun 08 2016

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SCART RGB Cable repair for Playstation One (Sync-on-Luma) com upgrade para Multicore Coax

Early last year, I spoke here in Skooter Blog on the SCART RGB cable for Playstation One (Sync-on-Luma) com upgrade para Multicore Coax you got to play My Playstation One with the best possible quality.

It worked fine for over a year, but one day I was testing a new firmware from the Framemeister and I realized the sound was coming out just on the right side. Like the other consoles were working perfectly, suspected of cable. With a few more tests concluded that it was the same cable.

Probably some of the wires had come loose, was left open the SCART RGB cable for Playstation One and figure out which one. Started by SCART side, You can open easily, but soon I found that everything was in order in it.

SCART plug-SCART RGB cable for Playstation One (Sync-on-Luma) com upgrade para Multicore Coax

SCART plug-SCART RGB cable for Playstation One (Sync-on-Luma) com upgrade para Multicore Coax

SCART plug-SCART RGB cable for Playstation One (Sync-on-Luma) com upgrade para Multicore Coax

SCART plug-SCART RGB cable for Playstation One (Sync-on-Luma) com upgrade para Multicore Coax

SCART plug-SCART RGB cable for Playstation One (Sync-on-Luma) com upgrade para Multicore Coax

SCART plug-SCART RGB cable for Playstation One (Sync-on-Luma) com upgrade para Multicore Coax

SCART plug-SCART RGB cable for Playstation One (Sync-on-Luma) com upgrade para Multicore Coax

SCART plug-SCART RGB cable for Playstation One (Sync-on-Luma) com upgrade para Multicore Coax

Needed so you can open the plug side of the Playstation, that is a bit more complicated because the glue that plug after building the cable. But with the help of a stylus He succeeded in opening the plug without damage.

Opening the RGB SCART cable for Playstation One (Sync-on-Luma) com upgrade para Multicore Coax

Opening the RGB SCART cable for Playstation One (Sync-on-Luma) com upgrade para Multicore Coax

As I suspected, the problem was really in the cable. As can be seen in the pictures, the white cable, It takes audio from left side, was loose. The weld broke.

The plug of the Playstation in the RGB SCART cable for Playstation One (Sync-on-Luma) com upgrade para Multicore Coax

The plug of the Playstation in the RGB SCART cable for Playstation One (Sync-on-Luma) com upgrade para Multicore Coax

The plug of the Playstation in the RGB SCART cable for Playstation One (Sync-on-Luma) com upgrade para Multicore Coax

The plug of the Playstation in the RGB SCART cable for Playstation One (Sync-on-Luma) com upgrade para Multicore Coax

The plug of the Playstation in the RGB SCART cable for Playstation One (Sync-on-Luma) com upgrade para Multicore Coax

The plug of the Playstation in the RGB SCART cable for Playstation One (Sync-on-Luma) com upgrade para Multicore Coax

It seemed like an easy fix, But first I need to know where to solder the loose wire, as there are some pins are not used that handle. As this is a cable with the luminance signal, the composite video signal and the chrominance signal are not used. A little bit of Tin left there on the third pin from left to right (the driver's side black) It gave an indication that the break was there. But to ensure I decided to get a schema. I went to the Tim Worthington's website and I found the schema that I reproduce below:

Connection diagram of the SCART cable from the Playstation One

Connection diagram of the SCART cable from the Playstation One

The problem with this scheme is that after parses it found out that he's wrong! Note that the left is getting into the audio pin 2 the SCART and the audio right is entering the PIN 6. But according to the standard SCART should be the other way around. A jump in Wikipedia us confirms that.

SCART pinout, according to Wikipedia

SCART pinout, according to Wikipedia

Good, then the layout of the site of Tim has the audios reversed, but will the Playstation side is right? Or is it that the reversal was made on both sides? In this second case build a cable by following the scheme would lead to a correct cable anyway. Curiously, in the list of updates of the page consists:

26/6/15 – Corrected diagrams for Sega Saturn and Sony Playstation. Both has left and right audio swapped around.

Now the business became even more confused. If this error had been detected and fixed, Why is he still there? Does image was wrongly without update? The way is find the diagram in another site. And found several other sites, among them the Game Station X, that shows us this diagram:

Alleged Playstation pinout

Alleged Playstation pinout

Both the schema of Tim as the pinout of the Game Station X show us that the audio is on PIN 2 the Playstation and the left audio is on PIN 4 do Playstation. So must be correct, some?

Yeah, It is not! How do I know? See the pictures that my SCART RGB cable for Playstation One is with the black conductor connected on PIN 4, taking supposedly left audio, but he's delivering this audio on SCART pin where the audio on the right side, As can be seen in photos. So much so that with the other driver released, the audio was coming out just on the right side. Would be so my cable mounted wrong? I suspected that Yes, but with some tests later found out that he's right, as I will show later.

With the multimeter I tried to figure out what was each pin on the rear of the plug, and so it was clear that on top row (considering the position the cable fits into the Playstation) has the pins pair, and in the bottom has the odd pins. Thus, It is clear that the white conductor pin came loose 2 (that would be the right audio in the diagrams, but that real is the left audio). The pin 6 is the composite video, It is not connected in this case, because we are using synchronization with the luminance signal. The dregs of Tin was there just to screw me even.

I would like to say that welded the driver and that everything was fine right away, but it wasn't as simple as that. I suffered a lot until I found out there was a problem in the EuroSCART Converter for Framemeister XRGB Mini. Note that I don't use this adapter on a daily basis. In my setup is the other adapter that I bought after and it's perfect. But when you do the cable test, to avoid going through the SCART Switch and not to have to keep unplugging many cables, I used the first EuroSCART Converter for Framemeister XRGB Mini straight in Framemeister.

By twist of fate, the EuroSCART Converter for Framemeister XRGB Mini I was also with a driver released, and just what loads the audio left. That's why my repair on SCART RGB cable for Playstation One did not seem to have worked, When in reality it worked perfectly.

EuroSCART Converter for Framemeister XRGB Mini, with the conductor broken Orange

EuroSCART Converter for Framemeister XRGB Mini, with the conductor broken Orange

EuroSCART Converter for Framemeister XRGB Mini, with the conductor broken Orange

EuroSCART Converter for Framemeister XRGB Mini, with the conductor broken Orange

I did the repair also in EuroSCART Converter for Framemeister XRGB Mini, but he returned to stay in the drawer and I kept using the other adapter that I bought after to guarantee.

Now yes, the SCART RGB cable for Playstation One (Sync-on-Luma) com upgrade para Multicore Coax returned to work perfectly. Of course the issue of wrong diagrams still intrigued me. I returned to the Internet and I found a diagram, This time in Pinouts.Ru and he was also wrong, showing the right audio pin 2 and left to the PIN 4. And interestingly there were fixes this issue in history, showing the diagram I've been right, but someone suggested the change after a test.

To make sure that my SCART RGB cable for Playstation One is correct, I used the CD Tojo Bass Evolution, It has a stereo test, to verify that the sound that was coming out in my left and right boxes really were the sound console generated on the left and on the right. The result is the video below and show that my cable is really correct.

After that all schemes were wrong, I made the suggestion of correction in Pinouts.Ru and he now shows the correct diagram. The two other diagrams that I cited remain wrong until the moment I write this article.

Therefore, at least for my Playstation One, the correct pinout is this from the table below:

Pin Name Description
1 GND Ground
2 L Left Audio
3 GND Ground
4 R Right Audio
5 And S-Video Y (Luma)
6 CVIDEO/SYNC Composite Video/Sync
7 C S-Video C (Chroma)
8 VGND Video Ground
9 B Blue
10 +5In +5 VDC
11 R Red
12 G Green

After noting that everything was in order with my SCART RGB cable for Playstation One I decided to close it again. I didn't use glue, because I don't know what was the glue used originally and I want to make things easy for if you have to open it again. I ended up closing with Duct Tape. It was pretty ugly. But at least it's easy to open if necessary.

Closing the amadoramente cable after repair.

Closing the amadoramente cable after repair.

The weekend did more tests to make sure that the cable would not fail. I took one of my favorite games, the RC de GO! and I started a match that lasted almost 2 hours. I had to stop, but I saved the game and I continue any day to go until the end. I recorded the entire match to show here:

But I'm still puzzled with the fact there are so many wrong diagrams. I got my Playstation is ruled out, which would be reversed, suddenly someone did something stupid on transcoding to PAL-M, but discard this hypothesis because the seller of the SCART RGB Cable for Playstation One in America wouldn't know this detail to make a cable also reversed.

Another hypothesis is that some Playstation has the inverted audio and others don't. Maybe the original Playstation is one way and the Playstation One is another, But why Sony would make such a silly?

It may be that the Framemeister is reversing the sound? Unlikely. The adapters? Also I find it hard to, because I have two and both are connected the same way. And the sound of the Mega Drive and the Super Nintendo also come out correctly, which would mean that the SCART cables of them should also be reversed for this hypothesis were true. Again: unlikely.

And a fourth chance, that to me is the most likely, is that someone made this mess in one of the first diagrams and the error was eventually copied by other and perpetuating, so that the incorrect form became more popular than the correct.

Ultimately, Anyway remains the mystery, If you have some light regarding this subject, Please leave us comments.

About the author

Skooter

Skooter is a computer scientist and the founder of Skooter Blog. He is interested in everything related to technology and he likes to save money by making his purchases directly from abroad.

Permanent link to this article: https://Cape www.skooterblog.com/2016/06/08/reparo-scart-rgb-to-playstation-one-sync-on-luma-to-upgrade-to-multicore-coax/

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