PS1/2 What is AV multi out on a ps1?

[CaK]

Can anyone please explain what multi out is on a ps1.
I know for a fact that the ps1 will work with composite and
S-video, but what else can it do?

 

[Ryccardo]

"AV multi out" is the standard video socket of PS1/2/3 (only early PS1s have direct RCA composite sockets, and only the very first Japanese 1000 model has a direct S-Video socket)

It carries RGB, composite, S-Video, and stereo audio.

On PS2 and PS3, the RGB outputs can also be switched to YPbPr ("component"); additionally, PS1 lacks 220 microfarad capacitors on the RGB lines (which should then be added in the motherboard or cable for correct brightness output, if RGB is going to be used)

 

[oxitran]

Can anyone please explain what multi out is on a ps1.
I know for a fact that the ps1 will work with composite and
S-video, but what else can it do?

If you are chasing image quality perfection on the PS1, then you should use the beetle PSX core in retroarch with a CRT-royale kurozumi shader.
Failing that, then a PS3 is a good bet, though games are hit or miss on image quality on PS3.
Or use a PSVITA OLED with henkaku for an amazing way to play on the go. OR you could use a PSP go that can be played on the go with a decent screen, and also allows for video out via component.

 

[migles]

Can anyone please explain what multi out is on a ps1.
I know for a fact that the ps1 will work with composite and
S-video, but what else can it do?

it's the default playstation video out port, it's like an "all in one" port, its been used in the ps1, ps2, ps3..
it's a combo port that outputs all the different kinds and types of video the console can do, making you just need 1 port and depending in the cable you use you get different type of video\audio (composite, rgb, s video)

like ryccardo explained only the first model had the normal RCA connectors as a bonus basically.
in plebs talk: it's that port where you connect your ps1\ps2 to the tv (the ps3 is more common to just use the hdmi than this port)
the one you connect this cable: http://img.fasttechcdn.com/106/1069500/1069500-3.jpg

 

[SG854]

If you are chasing image quality perfection on the PS1, then you should use the beetle PSX core in retroarch with a CRT-royale kurozumi shader.
Failing that, then a PS3 is a good bet, though games are hit or miss on image quality on PS3.
Or use a PSVITA OLED with henkaku for an amazing way to play on the go. OR you could use a PSP go that can be played on the go with a decent screen, and also allows for video out via component.

Ps3 can't output 240p which is lame.

it's the default playstation video out port, it's like an "all in one" port, its been used in the ps1, ps2, ps3..
it's a combo port that outputs all the different kinds and types of video the console can do, making you just need 1 port and depending in the cable you use you get different type of video\audio (composite, rgb, s video)

like ryccardo explained only the first model had the normal RCA connectors as a bonus basically.
in plebs talk: it's that port where you connect your ps1\ps2 to the tv (the ps3 is more common to just use the hdmi than this port)
the one you connect this cable: http://img.fasttechcdn.com/106/1069500/1069500-3.jpg

Gamestop cables are cool they can output RGB and Component. And I think official component cables do the same too.

 

[Vorde]

I don't normally refer to Youtube videos for more information, but this is so chalkfull of information on the subject, it would be difficult to ignore.

And for Playstation 2

 

[oxitran]

I don't normally refer to Youtube videos for more information, but this is so chalkfull of information on the subject, it would be difficult to ignore.
And for Playstation 2

The only thing missing from these videos is that they fail to mention that the PS2 has playback issues with PS1 games. And the later PS2 models even have issues playing some PS2 games. Therefore the PS2 should be a PS2 only machine.

 

[Vorde]

The only thing missing from these videos is that they fail to mention that the PS2 has playback issues with PS1 games. And the later PS2 models even have issues playing some PS2 games. Therefore the PS2 should be a PS2 only machine.

Oh yeah? That's unfortunate.
Is there a source for this information?

 

[oxitran]

Oh yeah? That's unfortunate.
Is there a source for this information?

https://en.wikipedia.org/wiki/List_of_PlayStation_games_incompatible_with_PlayStation_2

 

[Vorde]

https://en.wikipedia.org/wiki/List_of_PlayStation_games_incompatible_with_PlayStation_2

Interesting I never knew this. Thanks for the info

 

[Ryccardo]

Interesting I never knew this. Thanks for the info

The idea is that, while in (hardware) PS1 mode, the IOP becomes the main processor (which happens to be an upgraded PS1 one) while the main EE emulates the other PS1 components, but that isn't 100% accurate (see how there are options for upgrading disc speed or smoothing textures)...

...then the 75000 series replaced the IOP with a "Deckard" monstrosity, which is a PowerPC system on a chip (thought to emulate the original RISC IOP, with the change having been for cost cutting, but later believed to actually have a RISC core inside - it's still not well understood)

All of these changes, of course, were implemented with the "cost cutting first, consumers maybe, reliability last" policy of the involved media and electronics multinational

 

[oxitran]

The idea is that, while in (hardware) PS1 mode, the IOP becomes the main processor (which happens to be an upgraded PS1 one) while the main EE emulates the other PS1 components, but that isn't 100% accurate (see how there are options for upgrading disc speed or smoothing textures)...

...then the 75000 series replaced the IOP with a "Deckard" monstrosity, which is a PowerPC system on a chip (thought to emulate the original RISC IOP, with the change having been for cost cutting, but later believed to actually have a RISC core inside - it's still not well understood)

All of these changes, of course, were implemented with the "cost cutting first, consumers maybe, reliability last" policy of the involved media and electronics multinational

Sadly this followed into the PS3, leaving hardware backwards compatible PS3's with an HDMI output, a non-240p component port, horrible reliability, and presumably the very same issues that plagued later PS2 model compatibility.

 

[Zense]

https://en.wikipedia.org/wiki/List_of_PlayStation_games_incompatible_with_PlayStation_2

It's worth noting that Tomba! works on my PS2 so not every detail is covered on it. Can't remember my model number rn

 

[oxitran]

It's worth noting that Tomba! works on my PS2 so not every detail is covered on it. Can't remember my model number yet

Model numbers and region-specific game differences may account for variability in the list's accuracy.

 

[tbb043]

Sadly this followed into the PS3, leaving hardware backwards compatible PS3's with an HDMI output, a non-240p component port, horrible reliability, and presumably the very same issues that plagued later PS2 model compatibility.

PS3 emulates PSX, not true hardware BC, whether you like the job it does is personal preference. I prefer PS2 myself.

 

[Lumstar]

Model numbers and region-specific game differences may account for variability in the list's accuracy.

A factor is that Sony never published an official compatibility list for PAL regions.