DTL-S510B

Are all those images lost?

 

I saved them somewhere,here they are:

 

You save everything I love it!!
Great piece of history!
Thank you!

I got some info/questions regarding the DTL-H505, not sure how correct it is:
1, It was an external (early 1993) prototype correct?
2, Like the one Namco used to develop their system 11 arcade board and ported RR to PSX (without CDROM access)?
3, Was this the kit that interfaced and required the Sony's NEWS workstation and the early dev's complained it was too expensive and got SN Systems to make a PC dev kit in 1994?
4, Looks like the DTL-H505 box was NEWS workstation itself, any info on how they added the GTE hardware?
5, The SCSI Comms card/cable (DTL-S510B) has PSY-Q, anyone know/guess how it was programmed before PSY-Q' PC card (16bit ISA IIRC) ? via SCSI, serial, parallel ports, eithernet?

Thanks again!

 

Nobody really knows the relationship with NEWS and DTLH-505, because they are both as rare as hens teeth and anyone who has them is keeping them secret.

Three options:
1. It may have been like a PS2 TOOL, with a NEWS workstation and a full PS1 system inside.
2. It was a NEWS workstation using the main cpu, but with the GTE and GPU as add on modules (the GTE would have attached to the main cpu as a coprocessor, which is how it's hooked up internally in the PS1 CPU). The NEWS workstation at the time used R4000 running at >=100mhz, so this is my least favourite theory.
3. They had a bunch of NEWS workstation cases which they stuffed new PS1 boards into because they didn't want to waste 100k on designing new ones & you needed both a NEWS workstation and the DTL-H505. Looking at the pictures of the back of a DTL-H505, this is my current theory.

It's possible that the DTL-H505 was used for namco system 11 development. The original namco system 11 boards use GPU's that are different from the PS1, it would be interesting to know if the DTL-H505 used the same one. The registers and packets are different formats & textures can be stored in a swizzled format which was probably quicker to fetch and might indicate there was no texture cache. Some of the games auto detect the gpu and adapt, Tekken does on some screens but not on others (probably there is an overhead).

I think the DTL-S510B is the same SCSI based ISA card that was used on the 16 bit consoles but rebranded.

The PS1 doesn't use a real R3000, I'm not convinced the DTL-H505 did too. LSI wrote their own softcore, which they also provided as a standalone chip (the LR33300). If you decap a PS1 CPU nothing in there looks like an R3000. PlayStation was a big deal for LSI, they would have been able to do a quick lot of chips. If my theory is true they used the left over ones from the DTL-H505 when they made the system 11 boards.

 

One big PlayStation board inside. Nothing NEWS related. Just very similar case. Nothing else. It must be connected to host PC via interface board. Similar thing was made later with regular Debugging Stations and blue Psy-Q cartridge.

 

Do you have pictures? What about the earlier DTL-H500?

At some point you had to use a NEWS workstation and not a PC as a host, could it be that the switch over came between the 500 & 505?

 

I have some old pictures but my camera at that time was just junk. I need to open it again to make better pictures. It's one big board inside with some empty places for chips. I can upload one picture anyway. The others are junk.

I'm not sure that they are different...

DTL-H500 is 100V and DTL-H505 is 120-240V. DTL-H505 also has "(Code Name)" text on the back side in English. DTL-H500 was Japanese only unit. I think they are near the same.

Nothing NEWS related. Just similar cases. DTL-H500/DTL-H505 was connected to Windows 3.1 computers via interface board (DTL-S510B). All the software was made for Windows 3.1.

 

Pictures would be great, would like to know what chips were used.

Do you have a dump of that rom?

 

how about PSX acrade dev target box ? is it early than ps1 ?

 

There are a lot of different arcade target boxes.

This one: https://www.ebay.com/itm/Sony-COH-2000-PlayStation-Arcade-95-Target-Box/183305087555?ssPageName=STRK:MEBIDX:IT&_trksid=p2060353.m2749.l2648

is from after the PS1 launch. It has more ram and vram than a retail console. Later ones are clocked faster than a PS1 as well.

 

I hope to open it again soon.

No, just opened unit once.

WOW! Another COH-2000 Target Box! Who got it?

 

Cool.

When you open it for pictures, then please dump it.

I kinda know who sold it and who bought it, but it's kinda rude to say If I had cash to waste then I might have tried to get it.

Hopefully he'll dump the rom and take some nice pictures too....

This one is supposedly Atari's, the previous one I knew about was from Capcom. Pretty much each company had their own, the bios is encrypted differently for each company and they have their own decryption chip.

 

I was wrong. The bios encryption is the same for all target boxes, once they manufacture the games then it uses a different bios which is unique per company. However the rom boards are company specific, so you'd only be able to run games from the company you have the rom board for.

We don't have a dump of any games that run on a target box either, you wouldn't be able to run them on released hardware due to protection. You can't run the released games on a target box either, the protection would be harder to work round as each game has a unique decryption key.

If I had a target box then I might be tempted to do something about it, cest la vie.