There is a D.I.Y. kit for woz but I think the other version was discontinued. It was stuped $$$ anyway. Maybe with the dropping lcd prices someone will tackle this again.

The DIY kit was actually pretty cheap, like 50 bucks for the screen and harness. It didnt work with the new woz code update and no one can figure out how to make it work again. There was issues

There were a few made -- somewhere in Europe I believe. Someone was selling one a while back on here, if I remember correctly it was pretty spendy. Couldn't pull the trigger on that one but it looked pretty cool. They are not made anymore unfortunately. I wonder if a dmd extender could work if you just picked up a small lcd screen?

For WOZ, all you need is an LCD screen that matches the resolution of your main display. Newer WOZ displays are 1080p, older ones are something lower. It says on the screen at boot up. The computer in WOZ has a secondary video out port and you just connect the screen to that. The issue is that with newer code, you get cropping and scaling issues if the two screens are not the same native resolution. (Verified this myself)

Technically, you can scale down using a digital scaler.

http://www.kramerelectronics.com/products/#filters?&groupli=7&subgroupli=195

WNBJM has one and has been a great success.

image-61_(resized).jpg

My Buddy hooked me up, with correct components and cable it can be done.I just did this a month ago

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Nice add! Is that a 5" or 6" display that you went with?

You can do a DIY apron screen with DMD Extender or SmartDMD. Both of these utilize a Raspberry Pi and would usually use the HDMI port out of the RPi into an LCD Controller Board. You can split the HDMI and then down convert into composite for displaying on a cheap small LCD.

I've got details of that here:
https://pinside.com/pinball/forum/topic/de-jurassic-park-with-lcd-dmd-replacement#post-1111035

How does Color DMD handle the signal from their board to the LCD? I would assume it's some kind of standard signal that could be split similarly.

I personally wouldn't see it as a worthwhile business venture. If it's all about adding an apron screen to ColorDMD, then the ColorDMD folks should be the ones to make it, because as soon as someone else starts making it, they'll be accused if anything goes wrong with the ColorDMD, and you'd likely void any warranty you had on your ColorDMD. Besides, if it you released it on your own as an unofficial add-on to ColorDMD and it ends up being successful, there's nothing stopping ColorDMD or anyone else from selling a competing product after you've proven the market viability.

Don't need a whole solution just an hdmi out. That way people could use large screen on the wall or small screens on the apron. heck you could even have one screen you move from game to game as you play. perhaps suction cups to the apron. I would think a raspberry pi 2 could handle this.

Has anyone tried this with a ColorDMD on a bw machine? I'm getting one for my woz and was thinking I should just pick up two if there is any chance of branching off the ColorDMD

The colordmd's don't work that way. There is no branching or other output that you can use to power another display with the "same" colored output.

You can however use smartdmd to replicate the stock "non-colored" dmd. This sits in the signal path and uses a rasberry pi to create the dmd image from the display signals.

That would be great too. I'll look that up. ColorDMD is missing an opportunity in my opinion to make little secondary displays for the apron. Great add on. Like $200 for a tiny LCD is practically all profit.

+1

From a different thread that someone posted ... for DMD displays:

http://www.drpinball.co.uk/dmdextender.htm