Biomechanical Toy PCB pictures?

PCB problems and fixes
Asure
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Biomechanical Toy PCB pictures?

Post by Asure »

Anybody have this pcb, and if so, would you share some high res pictures of it?
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zak
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Re: Biomechanical Toy PCB pictures?

Post by zak »

removed.
Last edited by zak on June 4th, 2017, 12:08 pm, edited 1 time in total.
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rugdoctor
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Re: Biomechanical Toy PCB pictures?

Post by rugdoctor »

heard someone is selling or offering conversions of this game... :problem:
my website: http://kelvinsgamingheaven.blogspot.co.nz/" onclick="window.open(this.href);return false;
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zak
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Re: Biomechanical Toy PCB pictures?

Post by zak »

rugdoctor wrote:heard someone is selling or offering conversions of this game... :problem:
It's not hard to tell the difference ;) If you see 10 chips with windows covered by stickers, then it's a conversion.
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rodwod
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Re: Biomechanical Toy PCB pictures?

Post by rodwod »

Most look like the one above but i have seen some different variations of the pcb.So far i have not seen a conversion i think.
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Re: Biomechanical Toy PCB pictures?

Post by caius »

rugdoctor wrote:heard someone is selling or offering conversions of this game... :problem:
Yes, from a guy with a lot of hair on his head.
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Re: Biomechanical Toy PCB pictures?

Post by Asure »

I need to get more chips to test but it looks to be just a Rom swap with a few jumpers to set so far.
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Re: Biomechanical Toy PCB pictures?

Post by caius »

Asure wrote:I need to get more chips to test but it looks to be just a Rom swap with a few jumpers to set so far.
It could be since here are two revisions of Biomechanical Toy (as well as Thunder Hoop and Squash), one unprotected and the other with encrypted video RAM.You can recognize this by a /1 or /2 after the silkscreening on PCB.
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rodwod
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Re: Biomechanical Toy PCB pictures?

Post by rodwod »

No its more then just a rom & jumper swap cos ive done that already last year.

http://www.neo-arcadia.com/forum/viewtopic.php?t=54108
https://youtu.be/x0IOW5LPAQM

David's work is amazing 8-)
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Re: Biomechanical Toy PCB pictures?

Post by caius »

rodwod wrote:No its more then just a rom & jumper swap cos ive done that already last year.

David's work is amazing 8-)
Sure, it's amazing, shame that he never releases any of his works and do it only for profit.This is higlhy harmful for the whole community.
Last edited by caius on June 6th, 2017, 11:09 am, edited 1 time in total.
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rugdoctor
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Re: Biomechanical Toy PCB pictures?

Post by rugdoctor »

Hear, hear..
my website: http://kelvinsgamingheaven.blogspot.co.nz/" onclick="window.open(this.href);return false;
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Bonky
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Re: Biomechanical Toy PCB pictures?

Post by Bonky »

Caius need some more sex to be happy in the life ? :P (humour touch)

it's easy to say bad words :problem:
Never released stuff ? phoenix no logo, cps1Pal maker ......
And for the hear in the head you're very small in your head.
Easy way to attack people here, it's not the first time.

Go to repair pcb you're good at that, not for the critical with bad information.
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Re: Biomechanical Toy PCB pictures?

Post by Asure »

caius wrote:
Asure wrote:I need to get more chips to test but it looks to be just a Rom swap with a few jumpers to set so far.
It could be since here are two revisions of Biomechanical Toy (as well as Thunder Hoop and Squash), one unprotected and the other with encrypted video RAM.You can recognize this by a /1 or /2 after the silkscreening on PCB.
I've dumped the /2 eproms from Squash yesterday evening late, but they are the same as the protected /1 version.
If i get a bit of spare time, i will try to see if there is a specific set of init/read/write routines to set up the custom(s) on this board.
If not, i'll take a look at plugging BMT into the Mame driver w/ encrypted ram, and see what needs to be done.

Which reminds me, someday i need to get back to Punisher and C&D on CPS2. We were pretty close until protection and sprite priorities got in the way.
Recently another great hacker made a CPS1 conversion of C&D, so i am confident we can work out the protection from the bootlegs or something ;)
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rodwod
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Re: Biomechanical Toy PCB pictures?

Post by rodwod »

I can't blame him for trying to make a few quid from it :)

Caius if you find anything out please post it here as my friend is also working on the pcb.
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Re: Biomechanical Toy PCB pictures?

Post by Asure »

My hope at this point is that the code has some 'library' call they use for RAM access, which could be transplanted from say, squash, into BMT.
But i need to find some free time to look at the 68k code. Many other projects and real life suck up my free time these days :)

As for making money, well, some people do it that way, others just release a DOOM/DOOM2/Ultimate Doom ETC. port for free on Pandora's box 4S/4X :)
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rodwod
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Re: Biomechanical Toy PCB pictures?

Post by rodwod »

If You want the mame build for bio on squash i have it.
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Re: Biomechanical Toy PCB pictures?

Post by Asure »

Thanks Rodwod, but i have been compiling Mame myself for some time, so it's not really needed at this point :)

But, maybe you know, for your tests, did you swap all the proper resistors, including the one near 'F4'?

I'm still waiting on 27C040's to do initial tests, and this F4 jumper/resistor is looking at me like it controls some lines into RAM.
It would make sense if the boards have hardware control over turning on/off the encrypted ram.
Everything else is labelled the same on the /2 boards. Even the customs have the same names/stickers on them.
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rodwod
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Re: Biomechanical Toy PCB pictures?

Post by rodwod »

This is what i did after i put the roms in.
But it did not work so i tried to change as much stuff on the pcb as possible to make it look like shou's bio pcb.

I used NM27C040Q the same type used on the original pcb.

The bio pcb picture i was using as a reference has AFN & BFN custom chips but my squash pcb has AFN AFN.


From November / December 2015

Image

Ignore the purple boxes that ive highlighted by the jamma connector.

Image

Most of the sprites are good and the sound worked 100% so did the program.
Last edited by rodwod on June 6th, 2017, 5:35 pm, edited 2 times in total.
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rugdoctor
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Re: Biomechanical Toy PCB pictures?

Post by rugdoctor »

Fortunately we have great minds working on the conversion without the need for specific revisions. Is another 4 or so months for a solution acceptable for most?
my website: http://kelvinsgamingheaven.blogspot.co.nz/" onclick="window.open(this.href);return false;
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rodwod
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Re: Biomechanical Toy PCB pictures?

Post by rodwod »

It sure is :awe:
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