[Coco] question about MPI and Orch-90

[Todd Wallace]

Update. I have opened the MPI and discovered a few things.  First, whoever modded this saved an alternate PAL chip stuck inside upside down as can be seen in this pic:   http://cl.ly/image/253N3V1v112c

This second pic is the currently socketed PAL chip:    http://cl.ly/image/2O0Y3o3p4716

Hopefully u guys can read the number.  So the question is, which PAL chip is currently in there?  Is it the one for CoCo3? Perhaps the spare one stuck upside down in there is the one for the CoCo3? 

- Todd Wallace

On May 7, 2013, at 10:10 AM, Todd Wallace <dragonbytes at cox.net> wrote:

> Ok this is the weird thing.  This gray MPI TRS-80 Radioshack model 26-3024 has a sticker on the bottom that says CoCo3PAL.  On cloud9's website, they suggest the follow PEEK to see whether or not your MPI is modded for use on a CoCo3.  PRINT PEEK (&HFF90).  If the value is 126, its all set for CoCo3, if it is 255, then it is NOT modded for CoCo3.  My MPI returns 255 which baffles me because the sticker says "CoCo3 PAL".  Anyone have any idea why there might be conflicting info? maybe someone modded it for coco3, and someone else UNmodded again? When i plugged it in, it seems to work.  I mean, i can select a slot, turn on the coco3, and it will load the appropriate cart.  I am a complete newb when it comes to MPI so any advice on how to test if its working properly or not would be gratefully appreciated.
> 
> - Todd Wallace
> 
> On May 6, 2013, at 11:30 PM, Luis Fernández <luis46coco at hotmail.com> wrote:
> 
>> 
>> www.Cloud9tech.com sells a chip to repair and correct MPI addresses used
>> to serve in coco3 and clash between different utilities
>> not if specifically with Orchertra80
>> 
>>> To: coco at maltedmedia.com
>>> From: ooogalapasooo at aol.com
>>> Date: Mon, 6 May 2013 22:42:13 -0400
>>> Subject: Re: [Coco] question about MPI and Orch-90
>>> 
>>> 
>>> Todd,1st, I don't think you can "hurt" the MPI is it doesn't have the PAL fix, it just will not operate properly on a Coco 3. I know I'll be corrected on this if I'm wrong. 
>>> 
>>> On the Orch90 pak... to play the demo, you do not press "E", as that will put you in "Edit" mode.
>>> Instead, you press "S" to "Score" the file for play. It will come back to a cursor in a few moments and when it does, press "P" for play.
>>> Any time you "Load" a new file or "Edit" a current file, you must press "S" before "P".
>>> 
>>> Hope this helps.
>>> 
>>> Bill Pierce
>>> My Music from the Tandy/Radio Shack Color Computer 2 & 3
>>> https://sites.google.com/site/dabarnstudio/
>>> Co-Webmaster of The TRS-80 Color Computer Archive
>>> http://www.colorcomputerarchive.com/
>>> Co-Contributor, Co-Editor for CocoPedia
>>> http://www.cocopedia.com/wiki/index.php/Main_Page
>>> E-Mail: ooogalapasooo at aol.com
>>> 
>>> 
>>> 
>>> 
>>> -----Original Message-----
>>> From: Todd Wallace <dragonbytes at cox.net>
>>> To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
>>> Sent: Mon, May 6, 2013 10:28 pm
>>> Subject: [Coco] question about MPI and Orch-90
>>> 
>>> 
>>> Hey all,
>>> 
>>> I got my hands on a grey radio shack trs-80 26-3024 MPI.  There's a sticker on 
>>> the bottom that says CoC3 PAL, so I assume that means its been modified for use 
>>> with my CoCo3.  My question is, will plugging it in and turning it on cause 
>>> damage of the mod is NOT in place?  I know theres a PEEK to check, I just don't 
>>> want to damage the coco3.
>>> 
>>> My second question is, I got a cool Orch-90cc cart.  I plugged it in to try and 
>>> play the demo like the book suggests.  You press E [ENTER] and then P [ENTER] to 
>>> play the demo.  but when i type P [ENTER], i just keep getting ERR 04.  Can 
>>> anyone help?  I don't know if i'm missing something or if theres something wrong 
>>> with the cart, etc. Any help is appreciated.  Thanks
>>> 
>>> - Todd Wallace (LordDragon on Freenode)
>>> 
>>> --
>>> Coco mailing list
>>> Coco at maltedmedia.com
>>> http://five.pairlist.net/mailman/listinfo/coco
>>> 
>>> 
>>> 
>>> --
>>> Coco mailing list
>>> Coco at maltedmedia.com
>>> http://five.pairlist.net/mailman/listinfo/coco
>> 		 	   		  
>> 
>> --
>> Coco mailing list
>> Coco at maltedmedia.com
>> http://five.pairlist.net/mailman/listinfo/coco
> 
> 
> --
> Coco mailing list
> Coco at maltedmedia.com
> http://five.pairlist.net/mailman/listinfo/coco