WTB Capcom DL-2929 custom IC or CPS3 donor board

[csonesz003]

Hey folks!

I'm looking for a CPS3 donor board with working DL-2929 custom IC OR a standalone DL-2929 custom IC to replace mine. (P1 down, P1 button 4 and Test button aren't working) - no, there are no lifted or bridged pins

Thanks in advance!

 

[kazuo]

Did you confirm the resistor arrays those inputs run to are good? Usually this custom fails in a way that causes internal shorts, but I'm not an expert.

 

[csonesz003]

Thanks for the suggestion, but that was our second step that we measured and looked under the microscope.
There is a good continuity from the jamma edge to the resistor arrays and also from the resistor arrays to the IC.
I don't know what else can we check.

 

[kazuo]

If you buzzed it out end-to-end and the resistor arrays are good, it's probably a dead custom.

 

[csonesz003]

UP!

 

[csonesz003]

UP!