Sony XV-T550 demystified. Look here if you have one.

Page 6/6
1 | 2 | 3 | 4 | 5 |

By Piter Punk

Master (197)

Piter Punk's picture

13-05-2019, 23:21

lintweaker wrote:

I'll have to revisit. I will start adding beeps to see how far it goes.
I did some tests with the joystick port trick, never got a picture

Your titler is the XV-T550? I have an XV-J550 and neither the mouse port trick or the modified ROM works.

I still need to dump the XV-J550 ROM to find a good place to call in slot 3-1.

By NYYRIKKI

Enlighted (5256)

NYYRIKKI's picture

13-05-2019, 23:58

Piter Punk wrote:

I have an XV-J550 and neither the mouse port trick or the modified ROM works.

I still need to dump the XV-J550 ROM to find a good place to call in slot 3-1.

Hmm... but does it anyway boot from the cartridge slot normally?

If it does, then you can get the ROMs if you just do AUTOEXEC.BAT with something like:
SAVEROM XVJ550.ROM < ANSWERS.TXT

By Manuel

Ascended (15289)

Manuel's picture

13-05-2019, 23:57

NYYRIKKI wrote:
Manuel wrote:

I tried to run it in openMSX with the Konami mapper, but it crashes at startup, showing the green background screen.

Removing disk drive should fix this.

Ah, indeed, on a Philips NMS 8220 it boots and tries to show the 'connect the keyboard' message. Do you know how it's trying to detect that keyboard?

NYYRIKKI wrote:
Quote:

Did you try with the dynamic patcher?

No... It seems that I've lost my original 1024KB work dump of the memory. Sad I tried to look for it, but I have no idea where it has went... I guess I have to ask you to send me a copy or dump it again some day.

I don't have it either... and I didn't put any effort to run my XV-T550 as MSX (sorry, no time for that for now), but perhaps lintweaker can help there.

By NYYRIKKI

Enlighted (5256)

NYYRIKKI's picture

14-05-2019, 01:10

Manuel wrote:

Do you know how it's trying to detect that keyboard?

No, not really, but I took a quick look...

I think it might be this check where bit0 of I/O #70 is reset and low nibble of #71 is checked that it is #E and then bit0 of I/O #70 is set and low nibble of #71 is checked that it is #7

By lintweaker

Master (147)

lintweaker's picture

14-05-2019, 17:47

Piter Punk wrote:

Your titler is the XV-T550? I have an XV-J550 and neither the mouse port trick or the modified ROM works.

I still need to dump the XV-J550 ROM to find a good place to call in slot 3-1.

Yes, I do have the 'T' version. Is does startup normal cartridges just fine (judging from the game sounds)

By zett

Champion (512)

zett's picture

14-05-2019, 19:18

gona sell mine

By hamlet

Scribe (2257)

hamlet's picture

14-05-2019, 21:46

Don't do this! Maybe you want to set another title and then you regret it!

Page 6/6
1 | 2 | 3 | 4 | 5 |
My MSX profile