It is currently Sun Jun 16, 2019 6:50 pm


All times are UTC [ DST ]




Post new topic Reply to topic  [ 3 posts ] 
Author Message
 Post subject: Dexter and Data East boards?
PostPosted: Fri Nov 02, 2018 2:03 am 
Registered User
Registered  User

Joined: Fri Nov 02, 2018 2:01 am
Posts: 2
I've been waiting for any word that these would be supported (as getting a Road Blaster Laserdisc is quite hard) without any word. I was wondering, what exactly is preventing the data east board sets from being supported? Thanks!


Top
Offline Profile  
 
 Post subject: Re: Dexter and Data East boards?
PostPosted: Sat Nov 03, 2018 2:26 am 
DAPHNE Team
DAPHNE Team

Joined: Fri Jul 27, 2001 1:00 am
Posts: 294
Hi!

The basic problem is that the Data East hardware for Begas/Cobra/Road Blaster requires the laserdisc player to sync its video to the graphics output of the main PCB, instead of the other way around as most games do. The video output from the Raspberry Pi can't be synced to an external source, so Dexter is unable to support these games.

There is still some hope, though. I have heard tell of a mod for these games that allows them to work with an LDP-1450 instead of the usual LDP-1000A. The 1450 doesn't have a sync input, so if the game can be changed to work with a 1450, it should work with Dexter as well.

Unfortunately, I have been trying for some time to get actual details about this mod, without success. I have a few theories about how it could be done, but I don't have complete Data East hardware, so I haven't been able to fully investigate this.

As a result, these games are still "unsupported". :(


Top
Offline Profile  
 
 Post subject: Re: Dexter and Data East boards?
PostPosted: Fri Jun 14, 2019 6:37 pm 
Registered User
Registered  User

Joined: Fri Nov 02, 2018 2:01 am
Posts: 2
Warren Ondras wrote:
Hi!

The basic problem is that the Data East hardware for Begas/Cobra/Road Blaster requires the laserdisc player to sync its video to the graphics output of the main PCB, instead of the other way around as most games do. The video output from the Raspberry Pi can't be synced to an external source, so Dexter is unable to support these games.

There is still some hope, though. I have heard tell of a mod for these games that allows them to work with an LDP-1450 instead of the usual LDP-1000A. The 1450 doesn't have a sync input, so if the game can be changed to work with a 1450, it should work with Dexter as well.

Unfortunately, I have been trying for some time to get actual details about this mod, without success. I have a few theories about how it could be done, but I don't have complete Data East hardware, so I haven't been able to fully investigate this.

As a result, these games are still "unsupported". :(


I don't know if this helps, but I have a Cobra Command board that is on the Data East dedicated set, but it has an unknown data east top board that most likely converts it to work on a different laserdisc player. Maybe there is a hint in the rom on the top of the board?

https://www.dropbox.com/s/k39as10506f13 ... .jpg?raw=1

The rom on the top board:
https://www.dropbox.com/s/7x0qziyp53tqt ... .bin?raw=1 (2764)

Maybe this could help?


Top
Offline Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 3 posts ] 

All times are UTC [ DST ]


Who is online

Users browsing this forum: No registered users and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
cron
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group
Theme created StylerBB.net