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Vampire Savior CPS2 Solid Red Screen

It could be the 245 if there is a bad trace but I would say it is more likely to be the EPROM itself - that’s also a lot easier to test for
 
You guys are incredible. Overwhelming response, to get this PCB (almost) working! Big Kudos for all of you.
 
It’s been a while but here’s an update!

I haven’t visited Bakersfield yet, though I did visit Don’s Arcade for the first time and that was great.

Back on topic: Luckily my work has an eprom UV eraser and an eprom programmer/reader thing. I asked my boss and am allowed to use those for my personal projects.

I may not exactly know what I need to do to reprogram my faulty eprom, but at least I have the hardware to be able to do so. I plan on looking into it soon! Hopefully my board will be fully functional very soon!

Thank you to everyone!
 
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Apologies for the late reply. At this time, this issue has not been fixed primarily due to taking interest in other projects. I plan to continue this project by seeking out additional help from Anselmo in the near future. He has been instrumental in helping further my knowledge on this subject matter!!
 
Itz_Ochoa said:
Depois de, francamente, passar muito tempo instalando o Infinikey (certamente não foi o melhor trabalho), consegui inicializar o jogo! No entanto, não consigo passar da tela de seleção de personagens. Se eu me mover pela tela de seleção, o jogo reinicia exibindo o nome da região e, em seguida, entra no modo de atração. Fiz um teste no menu de serviço e um problema com a ROM de programa nº 3 foi detectado.

Não tenho um leitor de eprom nem nada relacionado a isso. Estou curioso para saber se o problema é com os LS245 ou com a própria eprom.

[MÍDIA=youtube]8EiVS2yfXFE[/MÍDIA]
Click to expand...
I was reading your post and I would like to give you a tip, the eprom that has a problem is not 3 but eprom 6.
The memory test starts with number 0 referring to eprom number 3, sequentially 0=3, 1=4, 2=5, 3=6, 4=7, 5=8, 6=9, 7=10.
Try removing eprom 6, cleaning the socket and eprom contacts and testing the memories again. If this doesn't work, reprogram the eprom again.
 
If you need original ROMs, I can sell them. I’ve tested them and they all work. I have several B boards with DL1927 and DL1827 that are broken.
 

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