PSX 1 RGB output

[KONEY]

Hi all! I subscribed the forum because I have a problem with a RGB-scart cable of my PS1.

Basically all RGB wires are connected but only Video is working, if I disconnect it I get no pictures. I would like to see a perfect picturs via SCART but I start to suspect the PSX hasn't this output at all...

anyone can help?

thanx!

[kel]

Are you sure that your TV accepts RGB? Some older TVs don't, some with two scart sockets only accept RGB on one of the sockets and with some TVs you have to select RGB on that input via the menu.

From my experience the Playstation one definitely outputs RGB although I can't speak for all models and regions though.

EDIT: Also I just realised if you disconnect the composite video from the scart connector then you will also lose the RGB connection due to the fact that all TVs use the composite video pin for vertical sync when in RGB mode.

[KONEY]

Hi, thanx for your reply!

100% sure it takes RGB because I use it daily with an Amiga 600 with scart (retrogaming geek here :-)

From a pinout website I am getting the same info, so my next test is to check every single RGB pin for electric signal...

[kel]

Have you checked if the RGB connections have 220ohm capacitors connected?

Also what makes you so sure that the TV is not using the RGB signal, does your TV state that it is only picking up the composite video signal?

[KONEY]

RGB pins have caps.

TV works with RGB, I use a RGB cable with an Amiga and I am quite confident with a RGB display. Indeed, I tried to desolder pin 20 (video) from the PSX cable and no picture at all (but sound). Re-soldered pin 20 and picture again. Quite empiric...

[mark_k]

Do you have a multimeter? Check the voltage on pin 16 of the SCART connector. It should be around 3V or so to tell the TV to switch to RGB. (Alternatively, your TV might have a way to manually switch to RGB mode; check its user manual.)

[KONEY]

pin 16 is not wired at all!!

I have no docs for the tv because it's an old CRT that I keep just for retrogaming

[KONEY]

ok, since that pin 16 isn't wired I assume this cable is a fake RGB.

Now question is: does anybody knows where I can collect a TRUE RGB cable for PSX? I accept also second hand stuff

Thanx

[Live_Steam_Mad]

PS1 only outputs Composite Sync (NOT Composite Video) in RGB mode, since C-Video and C-Sync share the same pin on the PS1 multiAV. My video projector doesn't like C-Sync in RGB, so won't lock onto the RGB from my chipped PSX or my RGB modded NES, but my 29" and 14" Sony TV's will. Instead I have to use an RGB SCART to S-Video converter or use the PS3 S-Video cable with the PSX on my pj.

(EDIT: whoops, I was wrong, PS1 does output Composite Video at all times, there is no "RGB mode" on PS1, only on PS2 (as compared to "Component" in the System Configuration menu). Turns out that my IN76 projector just doesn't like the RGB from the PS1 in either 625 or 525 lines, nor from my PS2 Fat or Slim when playing PS1 games (which is very odd). PS2 games are all fine on both PS2's in RGB, my projector likes the signal. My Fat PS2 doesn't allow Component as it's chipped!)

My Fat and Slim PS2 both output Composite Video in RGB mode that my pj uses for sync, then I can get RGB from both PS2's on my pj. BUT I have to take C-Video (as sync) from 1/2 way along the RGB cable (C-Video socket) since if I take it from the SCART adapter block that I use for my pj I get diagonal lines on the colors. Otherwise I have a perfect picture from all in S-Video or RGB (except for my large SNES and also my RGB and S-Video modded SNES JR, where I get diagonal lines in S-Video no matter what I do!

Regards,

Alistair G.

[Gradius]

AV MULTI OUT pinout:

1 - Green
2 - Red
3 - DC Out (for SCART)
4 - Blue
5 - Y/C GND
6 - C (S-video) / Composite Sync
7 - Video
8 - Y (S-video)
9 - Right (audio output)
10 - Video GND
11 - Left (audio output)
12 - Audio GND