Upright Discs of Tron Squawk and Talk Tutorial

Pics

Here's some pics...


NOTE: In pic #5 of Squawk & Talk J2 (10 pin) is from before I added the line in pin 7 for stereo sound.
 

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more pics

And more pics...


Note: I removed the battery pack from the MCR switcher and added a DALLAS Ram to replace the 6116 on the CPU.
 

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Awesome write up scott. I finally have SPEECH in my Discs of Tron thanks to you. When I soldered the jumpers, I did it kinda wrong I guess cause that's what was making mine act so goofy. Brought my board to scott for testing and he re-tooled my solder job and that fixed the problem. Thanks again man!!!

GREETINGS!! MCP HAS CHOOSEN YOU TO SERVE ON THE GAME GRID!!!!!!!!!!!!!!!!!

love it!!!
 
Yeah, only the 61b has the lineout, however, you can pull lineout off the others by the + side of C25/C34 which feed the audio amp pin 1
 
updates!!!

Finally had a chance to work on all the Squawk & Talk revisions. Here is a pin out for all of them for use with a DOT or EDOT. All 3 revisions have now been tested and work in both DOT & EDOT.

The 3 revisions of Squawk & Talk are as follows:

2 pinball versions:
AS-2518-61 which has 15 pins on J1 and 6 pins on J2
AS-2518-61a which has 18 pins on J1 and 10 pins on J2

1 EDOT version:
A080-91660-C000 which has 18 pins on J1 and 10 pins on J2
It also has no volume pots or bottlecap transistor w heatsink
(and other changes too)




Notes:
On the -61 board you need to hook the 2 wires that would go to R220 and R209 on the SSIO to the + side of caps C25 & C34 on the Squawk & Talk. PICTURE ATTACHED

On the -61a board proceed per my earlier tutorial (wires to R220 & R209 are attached at J2 7 & 9 on the Squawk & Talk)

The EDOT Squawk & Talk board when used with a DOT REQUIRES the external 5k volume pot in order to work. I tried installing the pot that comes with a Squawk & Talk cap kit but it did not work. The other 2 versions do not require and external pot.
 

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I have a factory cut edot that came with the arcade shop switcher, the speech has never worked, I see them in the test screen but no speech. The normal game sounds work.

My question is it has the -5 original board, does it use it with the switcher?
thank you
 
A bit of a thread resurrection and I aplogise if this is answered somewhere but...

When converting discs of tron to 'environmental' mode via the jumper wire between 8&9 on connector J5 (ie to get all the speech) how do you get round the fact that the environmental mode remaps the sound as it thinks there are front and rear speakers rather than a left and right speaker?

I've tested this with a 'standard' sound io board and one with panning and the results are similar, and also test mode supports this as being wrong, ie you get tests for left and right on UR mode and front and rear in environmental mode.

I know there is a rom patch, but docs suggest that is mainly to allow two player mode and doesn't seem to mention sound channel mapping.
 
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Ok, on a panning ssio, there are still only 2 channels out, the extra 2 sound out pins are tied to the same 2 channels. You can see that on the panning ssio schematic j3 9 and 10 are tied together, and j3 6 and 7 are tied together.
On an upright, Channels 1 and 2 are hooked up to the Left and Right speakers through the amp. On an EDOT, Channel One (both output pins) are tied to the front amp (which is tied to the Front left and right speakers), and channel 2 (both output pins) are tied to the rear amp (which is tied to the rear left and right speakers).
There is no difference between the sound eproms between upright and Enviro.
 
Okay, thanks for your advice, and confirming the enviro only has two channel sound. I shall recheck my working and my ears but I am 95% certain the sound is different.
An example would be on a level with six discs when Tron runs from left to right on an upright the 'bounce' noise goes left speaker -> both speakers -> right speaker or similar. When in enviro mode the 'bounce' sound when jumping between discs always comes out of the same speaker, whichever one it thinks should be the rear one I suppose so I am still scratching my head on this one.
 
so, to update I have retested this and it does indeed alter the speaker used for certain sounds if the game is in environmental mode. Another example being the disc 'toss' sounds for Sark and Tron, so one presumes it it testing for the presence of the jumper wire before outputting certain sounds even if the roms are the same. However since I lack the experience to re-jig the code I have 'remapped' the speakers instead....
 
I have a question....

Why the 13-14k ohm resistors inline with the output of the S&T? Why not 5k? WHo came up with that value?
 
Small bump on this as I was struggling to get my UDOT running a S&T. I have both an original S&T as well as mypinballs reproduction boards. I was really struggling to get my UDOT (non panning board) to work in my cabinet. After digging through this post, jeffC's post and bungy's posts all on their struggles/path. One thing I think that is important to mention that wasn't mentioned enough in these posts comes down to the SN74LS273 IC on A3. I have several pcbs from Journey, to Wacko, Tron, Discs of Tron and EDOT Pcbs and noticed after testing a few of the SSIO boards the only ones that would actually properly issue to the commands (after the wiring is connected properly) was the SSIO's with the A3 populated with a SN74LS273...

I have ordered a couple more SN74LS273 ICs and going to install this into my non-panning UDOT pcb and see if this fixed the issue with that boardset, ill comment back once this is complete. For now I am using my panning boardset but utilzing a bridge for left and right speakers from channel 1 and 2 so that I get full sounds out of my UDOT with the panning board.
 
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