Recent content by Tailsnic Retroworks

Yeah, I forgot that one. Winning Spike romboard is also very alike if you quit the protection

No, but the mainboard is donor for any game. The only known convert is Lethal Enforcers II to Gokujou Parodius

Thanks for the instructions @everten. I have used your remote control and I also can say there is no need to change the 1Kohm pots

Yeah, I can do that. For Sonic the Fighters romset. For 120€ + shipping I can flash you the entire romset and mount it on your Virtua Striker

New unit available

74LS74 in IC61 is in charge of CBLK and DCKL. That's why I desoldered it yesterday and tested it externally, with 74LS38 in IC67 which is involved too. In the first photo you can see "RAM NG" error, which is a general RAM error as far as I know. Also in the second photo you can see in the...

Nothing, I have exchanged IC79 QFP custom, even IC62 Nanao 17 custom. Desoldered and tested externally IC61 74LS74 and IC67 74LS38. Also tested 4x rams IC36-37-38-39 and 74LS374 on IC25-26-27-28. Exchanged also IC10 Nanao 13 custom and IC9 Nanao 14 custom. Is the same issue. The only culprit...

I'm selling jamma adapters made for games with no FREE PLAY option. They have START + COIN bridged on both players to enter coin chute when pressing START. They come with adjusted voltimeter screen, and the PCB (own design with 1.6mm height) has the "T" spacing. 25€ + shipping from Spain each

@Ape Cosplay @caius Thanks. I'll exchange it from a Vigilante board and tell you

But if that's the case...Wouldn't be all the colors bad? I mean, the white sprites are only in sprites zone. Tiles zone are being well visualized

IC79 QFP Nanao? What is its function?

@ShootTheCore I have seen in page 9/10 of M72A-C that there are COL 00-01-02-03 and COL 11-12-13-14 signals directly related to 4xALS374 in the sprites zone (RAMs IC36, IC37, IC38, IC39) I have tried to quit 1 of those 4 rams and the sprites lose graphical info. Probably is the real final...

I have tried another M72-B-D bottom board and the same result. This problem is in the main board, and I am really afraid it's a custom/related issue

I'm going to check the board today, but reading you, I have noticed you mention "COL 0A", " COL 1A", "COL 2A" and "COL 3A" in the 4/8 page of M72-B-D board you show. But reading further the schematics I also see "COL 00", " COL 01", "COL 02" and "COL 03" on pages 7/10 and 9/10 of M72-A-C board...

Hi. I'm trying to repair a Legend of Hero Tonma origi al board. When booting, I have "RAM NG" error with no number associated and the game doesn't visualize good the sprites. I have full checked the 4x sprites rams, 2xLS245, 2xLS244 and Nanao Custom 12 (this last one is even exchanged...