Will a non-soldered TG-16 AV mod work?

[farankoshan]

Spotted this on youtube...


Apparently, the guy just got stereo wires, cut off the ends & stuck the pins on the TG-16 into the wire. Then wrapped the other end of the wires to an AV box (is that what that is?), which he installed into the back of the TG-16 back shell. Makes "some bit" of sense to me.

But will this sort of mod work?

I'm really on the fence about purchasing a new Turbo Booster (non-plus) for close to $70. And that keeps me within the nice NEC bubble of official-ness. But I'm cool to do mods if a process will work & won't screw up my enjoyment from my system.

What I want to know is:
1. Will this sort of job work?
2. Can someone tell me the EXACT pins I need to use (Video, Left sound channel, Right sound channel)?
3. What is the ground for?
4. What is this AV box called? I know of a lot of 2nd-hand stereo shops here that have bins filled with wires, boxes & AV equipment. It would help if I knew exactly what to ask and look for.

As always, any bit of help with the above questions would be most appreciated. Any other info is fine, as well.

[bust3dstr8]

I was messing around with the expansion port last night trying to tap sound and RGB. I have a bunch of pins and
extra AV cables around and can test this out in bit.
If it works you can have the cable.

[thesteve]

yes the mod works
the "AV box" is nothing but the connectors.
the ground goes to the shell of the connectors, the other pins to the center's

i have the connectors listed for sale

[thesteve]

heres the connector pinout
http://www.gamesx.com/misctech/pcebp.php

you want (SNDR (sound right))  (SNDL (sound left)) (Vid (video))
(GND (ground)) to the shell on each AV connector

[farankoshan]

Does the connector pinout layout on the PC-Engine match the one on the TurboGrafx-16?

[SignOfZeta]

This is a pretty good idea. That is, making a Booster out of the stupid useless hollow shell thing they give you with the US system. Since boosters cost twice as much as systems now, this is the only way to go.

1) Yes
2) Sorry, don't know, its on the net somewhere though
3) Signal reference. Needed for...everything electronic, basically. All three signals will use the same ground

I wouldn't try to do this solderless. You're just begging for picky finicky unreliable connections that way.

[thesteve]

yes the TG16 and PCE pinouts are the same

[farankoshan]

yes the TG16 and PCE pinouts are the same

Thanks for the help, steve! I'll see what I can source around here first and check back with you guys with an update on my mod.

[bust3dstr8]

If anyone wants this set of TG composite cables drop me a pm


http://imageshack.us/clip/my-videos/193/dgl.mp4/

[andrew23]

I've done that myself a while ago, it works well. Here's a pic:

Excuse the poor photo.

[nat]

I did something like this as far back as high school with my TG-16. The needed info on the expansion port has been on the Net for almost 20 years. I didn't actually mount jacks in the rear shell, but I did what bust3dstr8 pictured and just modded a standard A/V cable that plugged right in.

Be careful when you make your connections at the expansion port, it is possible if the wrong two pins touch while the system is powered up to blow out the fuse on the main board.

[farankoshan]

Be careful when you make your connections at the expansion port, it is possible if the wrong two pins touch while the system is powered up to blow out the fuse on the main board.

This procedure just got all kinds of scary...

[nat]

It's just a fuse. It's there to blow up to protect the system itself. Worse case scenario, you'd have to replace the fuse after sorting out your issue.

[farankoshan]

Thanks for the info guys!

Thanks to all the help on this forum, I was able to successfully guide my tech friend to make an AV mod for my Turbografx-16.

See below:





I opted to do a "behind the pinout BUS" mod, which uses some wires to "tap onto" the signal from behind of the pins.
I'm now getting some awesome picture and sound quality out of my NEC machine. The hardware store had some great heavy-duty screwed jacks, just none of the Yellow-Red-White jacks in stock, so I used some classic Dymo labeling to help differentiate.

Thanks for everyone's help!

[grahf]

Sweet label. Makes it look like it was modded in the 80s.