MV1F & MV1FS with graphic issues

[adrianomartins]

Strange...https://wiki.neogeodev.org/index.php?title=Graphics_pipeline says that it goes directly to B1!
What do you mean with 245? SFIX or Neo-G0?

 

[Xian Xi]

The path goes to the B1 but it's not going to mention all the TTLs in-between.

 

[adrianomartins]

I finally found the Fix0-7 Connections between cart and LS245.
But where do they traces go from 245? I checked 245 <-> SFIX and 245 <-> B1 and I cannot find a any Connection...

 

[Xian Xi]

You need to download the datasheet for the 245 so you can understand how it works. If you suspect it's bad you can use an eprom reader to test it unless you have a TTL tester or just replace it.

 

[adrianomartins]

I do not think it is bad...otherwise I would have no pic at all. To which IC should 245 (FIX0-7) be connected?

 

[Xian Xi]

I do not think it is bad...otherwise I would have no pic at all. To which IC should 245 (FIX0-7) be connected?

It only handles the fix layer, the C rom data goes directly to the ZMC2. The outputs should go to the LSPC or B1.