Uzebox DTV

Topics regarding the Uzebox hardware/AVCore/BaseBoard (i.e: PCB, resistors, connectors, part list, schematics, hardware issues, etc.) should go here.
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CunningFellow
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Uzebox DTV

Post by CunningFellow » Sat Mar 29, 2014 4:48 am

I am making some Uzebox DTV units like the one Clay showed off a few years ago.

I have just thrown one design away and started again, but I hope this one is ready in the next few days to show off.

I have one question.

I am making one 4 conductor 3.5mm socket to come out of the back of the SNES controller.

This lead will have Audio, Video and 5v power on it.

Does anyone think people would be stupid enough to plug one end of a lead into a wall-wart, and then the other end of a lead into a non-uzeDTV device and blow it up?

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uze6666
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Re: Uzebox DTV

Post by uze6666 » Sat Mar 29, 2014 6:18 pm

Does anyone think people would be stupid enough to plug one end of a lead into a wall-wart, and then the other end of a lead into a non-uzeDTV device and blow it up?
If someone can, someone will! :lol: Besides, I guess there's no place for a Li-ion battery in the controller?

CunningFellow
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Re: Uzebox DTV

Post by CunningFellow » Sun Mar 30, 2014 12:37 am

Could fit a LiPo in there but two reasons I decided against

1, I was building these mainly as a give away for novices in the comp so I wanted to keep the prices down
2, I wanted to only have the one plug entering the back for neatness

The thing NEEDs to have a plug in the back for the AV seeing as it is not a TV transmitter. So not much need to battery power it seeing as you have to have a cable 100% of the time.

I Think I will just go with the power on the same lead option. If idiots blow things up then they blow things up. It is not like the 3.5mm jack is exclusive to A/V. I have old appliances that connect 16VAC on a 2 conductor 3.5mm jack around here.

CunningFellow
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Re: Uzebox DTV

Post by CunningFellow » Sun Mar 30, 2014 12:43 am

Oh and here is what I was talking about
Layout.JPG
Layout of the UzeDTV
Layout.JPG (42.4 KiB) Viewed 6406 times
Grind.JPG
Grinding the case
Grind.JPG (42.9 KiB) Viewed 6393 times
Jack1.JPG
Position of 4 conductor jack
Jack1.JPG (45.82 KiB) Viewed 6392 times

CunningFellow
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Re: Uzebox DTV

Post by CunningFellow » Sun Mar 30, 2014 12:45 am

So it looks nice and neat from outside with only the one plug
Jack2.JPG
View from outside
Jack2.JPG (34.38 KiB) Viewed 6395 times

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uze6666
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Re: Uzebox DTV

Post by uze6666 » Sun Mar 30, 2014 1:28 am

CunningFellow wrote:Could fit a LiPo in there but two reasons I decided against

The thing NEEDs to have a plug in the back for the AV seeing as it is not a TV transmitter. So not much need to battery power it seeing as you have to have a cable 100% of the time.
.
Good point! Could you also have a permanent cable then? No risks to lose it or plug it in the wrong devices.

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D3thAdd3r
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Re: Uzebox DTV

Post by D3thAdd3r » Sun Mar 30, 2014 1:50 am

I need one of those, looks great with the one plug. What's the plan on SD?

CunningFellow
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Re: Uzebox DTV

Post by CunningFellow » Sun Mar 30, 2014 5:21 am

uze6666 wrote:Good point! Could you also have a permanent cable then? No risks to lose it or plug it in the wrong devices.
Possible, but I feel the plug looks/seems neater than a captive cable.
D3thAdd3r wrote:I need one of those, looks great with the one plug. What's the plan on SD?
The micro SD goes just to the right of the AV cable. It is a push-push socket so the card is lower than flush to the surface so it is fairly safe position. I have not just cut/ground the plastic off for the socket. I am waiting till I have it on the PCB to get the location perfect.

Most of this is a re-do of a PCB I did a few weeks ago. I found the new controllers of ebay are a different shape inside than the very old ones I did first design off.

Once I have done 2 or 3 spins and I think it is as right as I want to get it - I am going to make a run of 20 or so of them to give away to newbies as encouragement prizes.

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Re: Uzebox DTV

Post by CunningFellow » Fri Aug 01, 2014 12:41 am

Oh - thought this was a better place for this picture than the tempest thread.

I am all set up to etch this Saturday so should have myself a UzeDTV by Sunday night.

It has the AVR and the Analog Devices NTSC chip on the back.

There is a uSD socket and a 3.5mm socket that carries

Power
Audio
Video

On the front of the board are the "buttons" and a couple of 4021 shift registers.

I'll post up the CAD files if anyone wants to make one AFTER I had made it and debugged any errors.
Attachments
UzeDTV.png
Ready to etch
UzeDTV.png (133.87 KiB) Viewed 6173 times

shockdesign
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Re: Uzebox DTV

Post by shockdesign » Fri Aug 01, 2014 1:51 am

I'm in, consider one sold! :)

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