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Props to you being a good friend and keeping her game running.

Ton of reviews on YouTube. For $25, it'll do the job - no harm in getting one. If you find it's something you're using on a regular basis down the road and it comes up short - upgrade later.

This would mean ramping up the full game from 18.432Mhz to 60Mhz (Pac + Ghosts) rather than Pac only? Thought I recalled a kit BITD speeding up Pac Man only.

just open my cocktail, no PCB inside.

Think it was a East vs West Coast thing. We got the Zoom, others got Zip. I've have a Pac cocktail with a Zip button I've never opened up, I can take a peek tomorrow.

Looks like it wires identical to the Zoom button mod, not sure what's inside the puck.

Boards are similar to Pac-Man. Lazy man way is to reverse image search in google, match with other PCBs on google or eBay.

1. Galaxian 2. Choplifter

GQ-4X will do 95% of your programming needs, with a few exceptions like tri-voltages and proms like @SNESNESCUBE64 mentioned. Everyone has their own method for troubleshooting (scope/testers, etc) and it comes down to whether you're a "fix the problem" or "troubleshoot the issue" kind of mind...

@shoestring has a test rom for Hypersports, think it's at v0.5 now @ the Jammaarcade link: https://forums.arcade-museum.com/threads/hypersports-hyperolympic84-test-rom-0-1.352623

I certainly remember IIRC when you're squeezing the bottle - almost like the CPU is loading up. Normal operation (experienced same when I had my cab), works itself out shortly thereafter.

Ken Layton (RIP) had them listed some time ago, check out this thread: https://forums.arcade-museum.com/threads/where-are-ken-laytons-peter-chou-ps-documents.362854/ See if @jacklick can repost the files here.

I use these on my 8" PVM tester: https://www.amazon.com/gp/product/B077Q2S7PF/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

Believe @toledoflyer has something readily available in this thread. https://forums.arcade-museum.com/threads/gremlin-sega-service-school-books.524806/post-4700031

@toledoflyer is the resident 440 expert here, as he created the FPGA 440 kits.

If you subscribe to classicarcaderepairs Patreon, he has 502/503/504 gerbers available for download.

Barking at people to search does nothing but create a bunch of new threads containing someone yelling search and burying the useful info, its counterintuitive. Give the new guy a break, the thread has already been created and you blasted him 1 minute after he posted. If you're too lazy to...

Ignore the negativity, everyone was new at one time or another. Some just choose to be a a drama queen about it. You can also ask @Arcadedoc524, although he might be more responsive on his YouTube channel than here: https://www.youtube.com/@classicarcaderepairs4818

Also Sean (@Arcadedoc524) can repair MC PCBs. Here's a link to some of his Missile Command repair videos on his YouTube channel if you want to spot-check along: https://www.youtube.com/@classicarcaderepairs4818/search?query=missile%20command