Search found 17 matches

by WarGames
Thu Dec 06, 2007 2:46 pm
Forum: Hardware Modification and Repair
Topic: Reading GD-Rom Discs with a YAMAHA CDR400t
Replies: 17
Views: 11990

Re: Reading GD-Rom Discs with a YAMAHA CDR400t

Nice job with your tests on your CDR400 FamilyGuy, very interesting results. I'd like to tinker around with my SCSI model (CDR400t) but I cannot find the firmware release anywhere . Does anyone know where I might find it? It's strange that kalisto released this firmware and confirmed its validity bu...
by WarGames
Wed Oct 17, 2007 8:19 pm
Forum: Hardware Modification and Repair
Topic: dreamcast problems when turning on...
Replies: 3
Views: 1416

Re: dreamcast problems when turning on...

Have you tried original GD-Rom Games? It could be you have some nonbootable backups (which you would need a boot disc for), legally these burned DC games should be personal backups. The beeping is due to the internal battery dying, you can find a guide that will show you how to replace this internal...
by WarGames
Tue Oct 16, 2007 10:01 pm
Forum: Hardware Modification and Repair
Topic: Reading GD-Rom Discs with a YAMAHA CDR400t
Replies: 17
Views: 11990

Reading GD-Rom Discs with a YAMAHA CDR400t

hey guys, First off this is for development purposes only, not for copying, but in some cases for personal backup, anyway I bought a few Yamaha CDR400t CD Burners (SCSI-2, 6x/4x) http://www.yamaha.co.jp/english/product/computer/pdf/400t_e.pdf a little while ago because I had heard from several place...
by WarGames
Tue Oct 16, 2007 8:52 pm
Forum: Hardware Modification and Repair
Topic: My dreamcast is dead T_T !!!!!!
Replies: 9
Views: 1425

Re: My dreamcast is dead T_T !!!!!!

It could need to be realigned, laser voltage increased (potentiometer), or you could have something like the battery dying. If you think its really the motor try to read the label off of it and searching on the web. GL
by WarGames
Tue Oct 16, 2007 8:48 pm
Forum: Hardware Modification and Repair
Topic: Very odd PC problem...
Replies: 5
Views: 1030

Re: Very odd PC problem...

Could be the PSU but it could also be the motherboard, what type of motherboard is it? Are their LED codes or 7-Segment Display lights on the motherboard when you try to turn it on?
by WarGames
Tue Jul 24, 2007 11:30 pm
Forum: Hardware Modification and Repair
Topic: Dreamcast Motherboard Schematics+, Willing to Participate?
Replies: 9
Views: 3069

Re: Dreamcast Motherboard Schematics+, Willing to Participate?

Some small upgrades to the site recently, Schematics: The SCIF Schematic is at least 90% complete. I haven't had a lot of time to work on DC stuff because of summer classes but progress is continuing slowly but surely. I've included pictures of the motherboard with colored traces of the SCIF signal...
by WarGames
Fri May 25, 2007 8:58 pm
Forum: Hardware Modification and Repair
Topic: Dreamcast Motherboard Schematics+, Willing to Participate?
Replies: 9
Views: 3069

Update Dreamcast SCIF Schematic

UPDATE! http://web.vtc.edu/users/cph11120/DreamcastProject/schematics/SCIFSchematic.htm I've done some more multi-metering and have completed a schematic / page for the Dreamcast's SH-4 based asynchronous serial interface with flow control (SCIF). So far the schematic contains what I believe to be a...
by WarGames
Fri May 25, 2007 6:53 pm
Forum: Hardware Modification and Repair
Topic: Dreamcast Seemless NES pad controller
Replies: 19
Views: 3334

nicely done! keep up the good work :D
by WarGames
Fri May 25, 2007 6:43 pm
Forum: Hardware Modification and Repair
Topic: Help! Dreamcast doesn't work
Replies: 3
Views: 548

It sounds like either a broken GD-Rom Unit, or possibly the GD-Rom Drive is loose on the inside from shipping/etc. When there are shorts or open circuits on some connections the Dreamcast's SH-4 will automatically power down to prevent damage (or further damage). This also can happen when parts/comp...
by WarGames
Mon May 21, 2007 4:05 am
Forum: Hardware Modification and Repair
Topic: Dreamcast Motherboard Schematics+, Willing to Participate?
Replies: 9
Views: 3069

Re: Dreamcast Motherboard Schematics+, Willing to Participate?

Hey everyone, I've been working on and off my website for quite a while now and I've finally decided to put it on the server for everyone to see. I haven't made a lot of progress yet with the schematics, but I've started. Here is the link to the Index/Homepage to my revamped website: http://web.vtc....
by WarGames
Mon May 21, 2007 3:55 am
Forum: Games and Software Hacking, Prototypes, and Devkits Discussion
Topic: My Website: DC Hardware Development
Replies: 2
Views: 653

My Website: DC Hardware Development

Hi All, I've spent quite a bit of time updating my website: http://web.vtc.edu/users/cph11120 I started last year. As part of my Final Project for my electrical degree at my school, I had to implement a reasonably complicated circuit and document its purpose, how it worked, etc. The site has been ar...
by WarGames
Mon Apr 23, 2007 10:11 pm
Forum: Hardware Modification and Repair
Topic: AV Port has finally kicked the bucket....
Replies: 5
Views: 946

You could always try resoldering the unconnected pin back to the pad, which pin was it anyway? A common problem when messing around with the A/V port is a short from +5V (Pin 5) to GND (Pin 1), this short will either blow a component, or more likely a trace to one of the inner layers on the motherbo...
by WarGames
Sat Apr 21, 2007 2:06 pm
Forum: Hardware Modification and Repair
Topic: Modchip?
Replies: 24
Views: 2059

word, i've been trying to find a reliable source as well, i've been interested in looking at the code and seeing what it does, recreating it etc.

http://dchelp.dcemulation.org/phpbb/viewtopic.php?t=799
by WarGames
Tue Apr 17, 2007 6:20 pm
Forum: Hardware Modification and Repair
Topic: Took pics and made an OC diagram
Replies: 69
Views: 10542

those look like crystals, according to my electronics class, a quartz crystal has cuts in it from a laser encased in a metal "can". Using some components such as an operational amplifier (not typically used for frequencies above a few MHz, high speed CMOS IC's seem to work well for high frequencies)...
by WarGames
Sun Apr 15, 2007 9:36 pm
Forum: Hardware Modification and Repair
Topic: Dreamcast Motherboard Schematics+, Willing to Participate?
Replies: 9
Views: 3069

Dreamcast Motherboard Schematics+, Willing to Participate?

I posted this suggestion on dchelp.dcemulation.org, but fackue doesn't seem to be getting much traffic in his forums so I thought I'd post it here as well: Since I've been tweaking with Dreamcasts for a while, its been necessary to see how the Dreamcast's 'innards' work, by tracing connections and m...
by WarGames
Wed Apr 11, 2007 1:53 am
Forum: Hardware Modification and Repair
Topic: Region Changer 1.5
Replies: 81
Views: 31370

Sweet mod, although by far more useful to PAL gamers than NTSC ones like myself :P. Nevertheless I'll probably test it out eventually. Fahlim003 asks a great question which I am unaware of the answer, but I would assume anyone with the source code and some coding experience could replace the bios wi...
by WarGames
Fri Mar 30, 2007 6:35 pm
Forum: Hardware Modification and Repair
Topic: Posted my first posts on dchelp.dcemulation.com =p
Replies: 0
Views: 288

Posted my first posts on dchelp.dcemulation.com =p

Hi all, I posted my first posts on dchelp.dcemulation.org, for some dumb reason I was thinking it was the same site =p perhaps I'll copy them over to the real DCemulation forums if its alright with mods, anyway heres my posts: 1st post, DC Hardware/Homebrew About Me: http://dchelp.dcemulation.org/ph...