PC Engine dev forum

Here's all the custom chip pinouts. I'm cutting and pasting from my notes so excuse any spelling errors or obvious mistakes. :D Wow, this is amazing. :shock: It seems HuC6280A #23 is NC on my Core Grafx 1. At least it's not pulled up. Could this also be a difference between non A and A revisions? T...

Are you absolutely positive that you have an A revision? Of all the systems I've taken apart, only the SGX has the A revision of the CPU. Was it a Core Grafx 1 or 2? My US Duo has a non-revision A as well as 3 TG16's that I've seen apart. It's a Core Grafx 1 that I have taken the A revision apart. ...

Sorry if this is off-topic. I took the HuC6280A apart from the PCB of my PC Engine Core Grafx. :o While the initial version of PC Engine (the white one) I also own has HuC6280 (without 'A') in it, I decided to take HuC6280A apart from my Core Grafx, since it had its cover already removed, and TG16 p...

This is actually very interesting
I'm going to setup a PCE test bench and post my results.
Thanks for sharing your findings!
-Ki