Personally I will always opt for least amount of code changes to ensure originally. My metric is usually "would they allow this code/system/etc to be used to set a high score?"
no, it's mono.
Despite being a "Technosoft" game the PCB design and architecture is clearly made by Metro. And indeed they use the same mono audio system design right down the same amp heatsync, and volume pot
no v-shift is completely different.
v-hold = adjusting the signal for it to stop scrolling in the vertical direction
v-shift = adjusting the vertical position of the image on the screen.
it looks like the labels are kind of non-standard.
normally it's V-POS (for Vertical Position) rather than...
yes, progress is being made on the VG460.
I have the new design complete but I do need to finish writing the code and then go over the whole schematic with a fine tooth comb before I get a prototype made.
here's a sneak peek
Adjust the v-hold until it's scrolling as slow as you can get it, then do the same with the H-hold
if one of those two knobs seems to have no effect then it's possible the pot is damaged
it's also possible that you actually caused the problem somewhere else. for instance if the sync pin of your...
I ended up picking one of these up. Works quite well with the ATMISP software and code written and compiled on WinCUPL.
I also picked up this pogo pin adapter from adafruit: https://www.adafruit.com/product/5434
I did this because I want to use this on some of the multis I'm developing and...
😂 While still technically true that the whole system multi isn't possible but I've learned enough of it's secrets to make some form of multi possible :D Glad I was wrong about that.
It's important to note the specific: PCB IDs
PO-078A (used by Blandia)
PO-079A (used by Eight Forces and Zing Zing Zip)
PO-122A (used by Zombie Raid)
lots of JJ Squawkers conversions out there using PO-078A and PO-079A PCBs
Similarly there may be alternate revisions of these boards...