Need an Odd Custom Cable for a TurboDuo with RGB Mod

Tempest_2084 · Post by **Tempest_2084** » Mon Aug 18, 2014 3:29 pm

I had a friend do an RGB mod on my TurboDuo for me, and for some reason he decided to have the video output go to a VGA style (DE-15) port he installed on the back of the unit. The RGB out looks incredible, but now I need to figure out how to hook it up to my current setup. What I need is a cable that is VGA male to male SCART. This isn't too hard to find, but I also need a way to get audio out, and this seems to be a sticking point. I can either use my old TurboDuo video cable and tap the two stereo leads from that (rca style cables) or try and tap the audio from the headphone jack. Either way, I have yet to find a cable that does either of these. The closest I can find is this:

http://www.ebay.com/itm/331278726620

Other than having a power lead I don't need, I think this might work. It appears to be VGA male and a headphone plug to male SCART. However since this cable is pricey I wanted to see if anyone knows if something like this will work.

bobrocks95 · Post by **bobrocks95** » Mon Aug 18, 2014 4:03 pm

Why not just add a phono/3.5mm to RCA audio plug alongside the VGA to SCART? People usually complain about audio buzzing when it's part of the SCART cable anyway.

Fudoh · Post by **Fudoh** » Mon Aug 18, 2014 4:13 pm

Can't be generalized. Without opening or the cable or using a multimeter you cannot know which pinout he used (assuming he used audio on the connector as well of course).

Tempest_2084 · Post by **Tempest_2084** » Mon Aug 18, 2014 4:31 pm

bobrocks95 wrote:Why not just add a phono/3.5mm to RCA audio plug alongside the VGA to SCART? People usually complain about audio buzzing when it's part of the SCART cable anyway.

I guess I could do that. I just didn't want to have a bunch of ugly cables laying around. I also don't want to have to swap the speaker jack around every time I want to play with the Duo. Currently my speakers are plugged into my Sync Strike which has audio out (gets it from the SCART cable).

Fudoh wrote:Can't be generalized. Without opening or the cable or using a multimeter you cannot know which pinout he used (assuming he used audio on the connector as well of course).

Crud, I was afraid of that. This is why I asked.

I guess I can always send him an email and ask.

bobrocks95 · Post by **bobrocks95** » Mon Aug 18, 2014 5:07 pm

Tempest_2084 wrote:I guess I could do that. I just didn't want to have a bunch of ugly cables laying around. I also don't want to have to swap the speaker jack around every time I want to play with the Duo. Currently my speakers are plugged into my Sync Strike which has audio out (gets it from the SCART cable).

Gotcha. You'd have to splice audio into a regular SCART adapter then if you've got the skills, or find someone who will custom wire a cable for you. I know there are people on ebay who make SCART cables by hand and take custom pinouts, but I don't know of any that deal with DE-15 connectors.

Tempest_2084 · Post by **Tempest_2084** » Mon Aug 18, 2014 5:18 pm

bobrocks95 wrote:
Tempest_2084 wrote:I guess I could do that. I just didn't want to have a bunch of ugly cables laying around. I also don't want to have to swap the speaker jack around every time I want to play with the Duo. Currently my speakers are plugged into my Sync Strike which has audio out (gets it from the SCART cable).
Gotcha. You'd have to splice audio into a regular SCART adapter then if you've got the skills, or find someone who will custom wire a cable for you. I know there are people on ebay who make SCART cables by hand and take custom pinouts, but I don't know of any that deal with DE-15 connectors.

I sent a note to the guy who made that cable I linked to, I'll see what he has to say about it.

BTW does anyone know of someone who does recaps on TurboDuos? I need to get mine recapped.

Tempest_2084 · Post by **Tempest_2084** » Mon Aug 18, 2014 7:14 pm

He responded that it *should* work. He was nice enough to give me details on how it is constructed:

http://www.geocities.ws/podernixie/htpc/cables-en.html

Looks like it should work. Then again I'm not an electronics expert by any means. He said the only thing that would worry him is the Voltage Peak to Peak (Vpp) level.

Tempest_2084 · Post by **Tempest_2084** » Wed Aug 20, 2014 11:36 am

I think I'm going to order this cable. Can someone take a quick peak at that link I posted and double check that this would work?

Richtr8 · Post by **Richtr8** » Thu Aug 21, 2014 5:08 am

we can't really tell if it'll work because we have no clue how the person who modified your console configured the pins on the VGA port. the best thing to do would be to ask the modder himself how he did it. send him the link to the scart to vga schematic & ask if he followed that pinout.

bobrocks95 · Post by **bobrocks95** » Thu Aug 21, 2014 6:14 am

Thinking about it again, yeah, you need to ask your modder how he wired the VGA port itself, i.e. is it wired exactly to standard.

Tempest_2084 · Post by **Tempest_2084** » Thu Aug 21, 2014 1:17 pm

bobrocks95 wrote:Thinking about it again, yeah, you need to ask your modder how he wired the VGA port itself, i.e. is it wired exactly to standard.

Unfortunately he's moving across the country so he's not going to be able to respond any time soon. I'm not exactly sure what the 'standard' is, but I was able to plug the VGA (DE-15) to RGB cable that use with my Sync Strike into it and get a nice picture on my RGB monitor. Does that mean it's standard?

Sorry for all the confusing questions.

Richtr8 · Post by **Richtr8** » Thu Aug 21, 2014 5:51 pm

Tempest_2084 wrote:
bobrocks95 wrote:Thinking about it again, yeah, you need to ask your modder how he wired the VGA port itself, i.e. is it wired exactly to standard.
Unfortunately he's moving across the country so he's not going to be able to respond any time soon. I'm not exactly sure what the 'standard' is, but I was able to plug the VGA (DE-15) to RGB cable that use with my Sync Strike into it and get a nice picture on my RGB monitor. Does that mean it's standard?

Sorry for all the confusing questions.

well, once again that depends on the pinout of the sync strike. i'd assume whatever pinout it uses would be standard, seeing as it's a mass-produced device. like fudoh said, it's impossible to generalise when you're dealing with stuff like this. i'd recommend buying the cable & trying to negotiate some sort of return policy with the seller in advance.

Tempest_2084 · Post by **Tempest_2084** » Thu Aug 21, 2014 5:56 pm

I'm wondering if it wouldn't be easier and cheaper to just get a VGA to SCART cable like this (http://www.ebay.com/itm/360247777492) and just solder the two sound leads to it using a audio cable that plugs into the headphone jack. Looks like I just need to cut the cable open and solder the two wires to pins 2 and 6.

Richtr8 · Post by **Richtr8** » Tue Aug 26, 2014 6:30 am

Tempest_2084 wrote:I'm wondering if it wouldn't be easier and cheaper to just get a VGA to SCART cable like this (http://www.ebay.com/itm/360247777492) and just solder the two sound leads to it using a audio cable that plugs into the headphone jack. Looks like I just need to cut the cable open and solder the two wires to pins 2 and 6.

for $10 shipped (i'm sure it's much less by you) i don't see why not

Tempest_2084 · Post by **Tempest_2084** » Tue Aug 26, 2014 1:39 pm

That's all it take to add audio though right? Seems simple enough, even to someone with zero soldering skills like me.

22point8 · Post by **22point8** » Tue Aug 26, 2014 3:24 pm

Don't bother with that cable its just composite.

Tempest_2084 · Post by **Tempest_2084** » Tue Aug 26, 2014 3:54 pm

22point8 wrote:Don't bother with that cable its just composite.

Which one? The first one I linked to (with the power supply and audio cables) or the second one? How can you tell?

22point8 · Post by **22point8** » Tue Aug 26, 2014 4:31 pm

The most recent ebay one. Its not fully wired, R, G and B aren't connected, just the composite pin on the scart to probably the h-sync pin on the VGA end and some grounds. The VGA end is moulded so you can't rewire it. It would be cheaper to buy a Scart end and a VGA end and make the cable yourself.

Tempest_2084 · Post by **Tempest_2084** » Tue Aug 26, 2014 6:16 pm

22point8 wrote:The most recent ebay one. Its not fully wired, R, G and B aren't connected, just the composite pin on the scart to probably the h-sync pin on the VGA end and some grounds. The VGA end is moulded so you can't rewire it. It would be cheaper to buy a Scart end and a VGA end and make the cable yourself.

This one? http://www.ebay.com/itm/360247777492 How can you tell?

Would this one work? http://www.ebay.com/itm/141370475757

It probably would be cheaper just to make my own, but I'm not 100% sure how to wire it. The diagram I linked to sort of helps, but not enough. Is there a guide to wiring one of these up?

shmups.system11.org

Need an Odd Custom Cable for a TurboDuo with RGB Mod

Need an Odd Custom Cable for a TurboDuo with RGB Mod

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