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I did not found a fix for this yet. How do you have access to the code? BR, iTRDC2

Here follows a video reproducing the ISSUE. Video - Namco ND-1 board boot ISSUE I checked the ROMs and they are fine. Anyone has an idea where I should look at? BR, iTRDC2

Hi Hammy, Thanks a lot for wisdom comments ;). In the meawhile taking into account what you said I putted my attention on the ROM Board. Since I had already tested the ROMs (both Mask ROMs and EPROMs) I decided to take the next step and test the PALs. I re-seated two of them, the socketed ones...

A photo of the colors palette Here is a photo. Best Regards, iTRDC2

Hello guys, I have two non working Konami GX Type 3 main boards that I can trade by a Konami GX Type 1 or Type2 mainboards. I have also two fully working Konami GX Soccer Super Stars boards that I can also trade by Konami GX Type 1 or Type 2 boards or games. On a second approach I can consider...

It displays all colors and then it freezes. Best Regards, iTRDC2

Hello, I have a faulty Capcom ZN-1 PCB (Battle Arena Toshiden 2). When I turn on the arcade, the board goes to color palette screen and stays there (it is stucked. At least seems becasuse when I press the test button it does not go to test sreen). I tested all ROMs using my Miniprog to read...

Hello all, I have a faulty Namco ND-1 PCB (with Namco Collection vol 2). When I turn on the arcade, the board does the RAM test and it passes that test, then it does the SUB test and after that the board reboots and keeps doing that (it is in an infinite loop). I already tunned the Power...

Besides this board I have another MV1B with exactly same symptoms, so I don't think it is a bad trace. Do you agree? In the meanwhile I will check the 3 points that you mentioned. Thanks in advance, iTRDC2

I powered on the system with buttons B + D pressed and I got this screen. Best Regards, iTRDC2

It gives Z80 Error with the original bios. It gives no error with Unibios 4.0 but it has no Sound. It gives the following to srceens with the NeoDiagBios + Z80 tests Diag Cart: First sreen Second screen (after pressing Player 1 Start while on 1st screen) Best Regards, iTRDC2

Hello @TheDeath, I already installed the NeoBiosMasta on my faulty MV1B board (no sound board). I'm getting Z80 error from the NeoDiag BIOS analysis. I changed the Z80 and I'm still getting the Z80 error and no sound. Any ideas? Thanks in advance, iTRDC2.

Hi @Neo-Alec, like @andynumbers correctly mentioned I'm unable to go into the input test scree since the player 1 start button is not working. @andynumbers thanks for the tip. I will check it. Best Regards, iTRDC2

The Bios is the original one. The only way to use another Bios such as Unibios or a bios for a different region is using the NeobiosMasta. Or it is possible to change the region on an original bios? Already tried with more than one game, and the behavior is the same on all. Any other ideias...

Hello Arcade mates, I need some help from you to indentify/ troubleshoot an ISSUE that I have with a MV1B board. Board is fully working with exception for Player 1 Start button. Board is clean and I have not found any cutted trace. What do you suggest where I should start to look at? Thanks...

Hi, Any other suggestion on how I can continue the troubleshooting? Thanks in advance. iTRDC2

Please see the answer for your questions. Thanks in advance. iTRDC2

Hello XianXi, Thanks for the tip. I took a look at LSPC2-A2 for bent pins or solder bridges but did not find any. Any other suggestion? Thanks in advance. iTRDC2

There is no one to help me please? Thanks in advance. iTRDC2

Hi Arcade mates, I need some help from you to indentify/ troubleshoot a Video ISSUE that I have with a MV4F board. Here follows a picture of the ISSUE: So far I only know that the ISSUE is not related with the TOP board. I ran the tests with the Neo Diag BIOS but it did not found any ISSUE...