Problem conversion Sega Model 2 Virtua Striker in Last Bronx?

PCB problems and fixes
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chacal
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Problem conversion Sega Model 2 Virtua Striker in Last Bronx?

Post by chacal »

:)

I'm trying desperately to convert a sega model 2B virtua striker into the Last Bronx but without success :cry:

I did everything step by step.
Always the same problem :cry: :evil: F..K

https://www.arcade-projects.com/forums/ ... #post68415

M27C322-10F1 ST 32MBIT 100NS

M27C160-100F1 ST 16MBIT 100NS

M27C4002-45XF1 4MEG MBIT 45NS

Here is the follow-up of instructions

mpr-19050.11/mpr-19051.12/mpr-19048.9/mpr-19049.10/mpr-19052.17/mpr-19053.21/mpr-19057.32/mpr-19058.34 => 4Mo With 27C322


mpr-19055.27/mpr-19054.25 => 2Mo With 27C160


epr-19046a.15/epr-19047a.16/mpr-19056.31 => 512Ko With

Image

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Thank for your help :cry:
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pulstar
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Re: Problem conversion Sega Model 2 Virtua Striker in Last Bronx?

Post by pulstar »

First of all, did the board work fine before converting? Also, I'm sure there are jumpers on the rom board that may need adjusting. Are you sure they're correct?
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chacal
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Re: Problem conversion Sega Model 2 Virtua Striker in Last Bronx?

Post by chacal »

yes the game and the whole system works very well with Rom and Mask Rom Virtua Striker ;)

For the Jumpers I based on a Photo of a forum member who had a Photo of his own Rom Board :-?

EPR & MPR locations on Rom Bord Last Bronx SEGA MODEL 2B CRX
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rodwod
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Re: Problem conversion Sega Model 2 Virtua Striker in Last Bronx?

Post by rodwod »

Looks like the board is busted.

Try another rom board to make sure.

Also try adding some pressure to the maskrom sections of the romboard to see if any good gfx pop up.

Model 2 pcb's are not good for messing about with :eh:

The most common problem with them is NO 3D gfx or messed up 3D gfx which is what you have.

Hope I'm Wrong.
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pulstar
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Re: Problem conversion Sega Model 2 Virtua Striker in Last Bronx?

Post by pulstar »

On the bank of jumpers by the sound roms, it looks like you put the jumpers in wrong. Looking at the photo it seems they all need moving over one space to the right.
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chacal
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Re: Problem conversion Sega Model 2 Virtua Striker in Last Bronx?

Post by chacal »

Thank you 8o ;)


Before



After



I removed all the jumpers and put them in the right direction.


Because I noticed that the metalic feature of the jumper must be a straight line and not a curve and I put a lot of it like that


I just changed the position of a single jumper because I had a voice problem like mice speaking in accelerated :D lol

Image


​My Jumpers configuration

Image

Image

Image

Image


On the other hand I have a doubt

during the character selection there is the character select in green :wtf: X/ ?( watch the video thank you


Somewhat confirmed if this is normal

Thanks again to everyone :thumbup: :thumbup: :thumbup: :thumbup: ;)​​
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pulstar
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Re: Problem conversion Sega Model 2 Virtua Striker in Last Bronx?

Post by pulstar »

Excellent, glad to see it working. That green character on the select screen is normal, at least it was the same on my original rom board.
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rodwod
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Re: Problem conversion Sega Model 2 Virtua Striker in Last Bronx?

Post by rodwod »

Schoolboy Error :lol:
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