PSOne monitor to SNES

[Gutierrez]

Alright. I have the PSOne monitor and SNES running off a battery. I can get composite video on the monitor from my Xbox. I can get video off the SNES onto the TV, but I think I have the connections wrong. I'm running the composite video pin of the A/V out to signal on an RCA cable and composite synch to the ground on the same cable. It works for the TV, but seems to fall short on the monitor (no picture at all.)

If using composite is the devil, and have the solution otherwise (RGB, S-video) any help you can give would be wonderful. Whatever you've found works best.

Second, all the pinouts I've found point to the fact stereo sound is linked on the A/V out. Is there a point on the board I can get just single left and right channel sound out of the board?

I have the old timer board, SVHC-CPU-01, detached sound processor unit and all. It's going to be a big chunk, but hopefully once I get these issues resolved, I'll have it quasi-portable.

If I've missed the answer, sorry to be beating a dead horse.

[Sparkfist]

The PSOne uses a odd audio in, you'll need a cable that takes two RCA jacks in and has one jack that looks like a head phones for external audio in. But if your not getting any video see if you can atleast get audio, meaning you can find out if the screen is totaly busted or if you need to do the LED mod to replace the backlight.

If your going to build a case for the project I would say use RGB to input video. It much better and the PSOne screen doesnt support S-Video.

I'm sure other members will be along shortly to help in more detailed and indepth answers.

[JackFrost22]

unless he has a mini snes then the crappy rgb mod would have to be donw

[Gutierrez]

The PSOne uses a odd audio in, you'll need a cable that takes two RCA jacks in and has one jack that looks like a head phones for external audio in. But if your not getting any video see if you can atleast get audio, meaning you can find out if the screen is totaly busted or if you need to do the LED mod to replace the backlight.

Well, I looked at the pinout on the forums and it looks like there are pins for a left and right Audio in. Shouldn't I be able to wire/solder an audio out from the SNES directly to the pins on the PSOne?

As for the screen, It's fine, I've been running my Xbox composite out to it via a seperated RCA jack and Aligator clips. Just stick the clips on the right pins and I get a good picture. I just can't figure out what pin combination on the A/V out of the Super Nintendo will get the composite from the SNES to the PSOne.

unless he has a mini snes then the crud rgb mod would have to be donw

Crud RGB mod? Any picture that shows up is fine. And yes, it's a 1990 model, so this is definitely no mini.

[Sparkfist]

http://www.doomportables.org/video.html Try this.

[JackFrost22]

oh then use RGB by all means

[goodie]

I just can't figure out what pin combination on the A/V out of the Super Nintendo will get the composite from the SNES to the PSOne.

1 Red
2 Green
3 Composite Sync
4 Blue
5 Ground
6 Ground
7 S-Video Y (luma)
8 S-Video C (chroma)
9 Composite Video (NTSC)
10 +5 VDC
11 Left+Right Audio (Mono)
12 Left-Right Audio (Used to calculate Stereo)


You need pin 9 for the composite, and 5 or 6 for the ground.

[JackFrost22]

not 5 and 6 only pin 5 or pin 6 just ot clarify

[Gutierrez]

Yeah, I was using port 3 the synch instead of 5 or 6 to ground. Interesting note that that works on my TV but not on the PSOne monitor. Thanks for the help with the pinouts. I get a good picture on the monitor now. Who knew that video should go to video and ground should go to ground?

And using a picture the multi out photo as a graphic is a bit odd. The pins for the "Multi Out" is on the backside of the board, and the numbers are clearly labeled.

11 Left+Right Audio (Mono)
12 Left-Right Audio (Used to calculate Stereo)

Used to calculate stereo? I'd rather not be running in mono... Is there a simple place on the SNES board where I can get each signal seperate?

Just asking for an easy way out. The only other solution I'm coming up with at the moment is too convoluted to be good:

1) Mix signals (Pin 11&12): L+R+L-R=2L
2) Invert (12) and mix (11&~12): L+R-L+R=2R

Only mixers and inverters I can find involve op amps, I don't want to be building too much extra if possible.

Thanks again.[/quote]

[Gutierrez]

The A/V out cable has to haev that circuit built into it to seperate the audio channels, coudl scrap a cable to get the needed guts. But still, and one out there haev a mroe efficient solution?

[gannon]

The calculations are performed onboard, you just need to hook wires up to each line.

[goodie]

And using a picture the multi out photo as a graphic is a bit odd. The pins for the "Multi Out" is on the backside of the board, and the numbers are clearly labeled.

They are? Well, its been a while since I've looked inside my Snes.

[Gutierrez]

Just figured I'd progress report, since this forum has actually been pretty invaluable. Wish I was farther (stupid work) but what can you do.

She's all hooked up, have stereo sound and video running from the SNES to the PSone screen. The only thing I have left is making sure all the traces are hooked up right on my controller (I dremeled it into three pieces.) I have the Diretional pad working, just need to work out the main buttons. That and I need to do the LCD LED mod. Battery life seems pretty piddly without.

Anyone have a favorite stype of LED to suggest? Or should I just go buy any set of cheap 3mm whites?

Any of you have casing suggestions? The best tool I have for cutting and shaping is my Dremel.

I was thinking about working with Lexan, any one have experience or tips?