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APOCALYPSE M92 Multi Installation and Support

I'm seeing that "sprites are showing but the background tiles are scrambled or blank" issue, so I've been working through the suggestions.
  • Ribbon cable: Blue side is up, and I've tried re-seating both ends of both cables multiple times.
  • Fix daughterboard: No pins are sticking out or missing, and the orientation matches the silkscreens for each socket. However, both daughterboards fit very tightly into the sockets, and the last 1-2 mm of each pin is exposed on both daughterboards. I couldn't get them to go in further and figured the sockets bottomed out.
  • Fix flash modules: I re-flashed 2 (didn't think to read & verify it before flashing) and verified 3. However, the first two times I flashed 2, it failed verification. Bad TSOP56? Bad programmer?
  • Jumpers on the ROM board: I have an M92-E-B ROM board. I set J1 & J2 to N. J10 was already at 4M.
  • EPROMs: I sourced, programmed, and verified the 27C322s myself. The EPROM at 7 behaved suspiciously at programming time (jank on legs, and had to re-seat it before my programmer recognized it), so I replaced it with a less janky one. Unfortunately, that didn't change anything. Should I also try replacing the EPROM at 6, even though it verified successfully? Deoxit all the legs?
  • Donor board: The mainboard has a MT2 sticker, and the M92-E-B ROM board came with In the Hunt ROMs when I bought it. I recapped the mainboard and verified it still worked with In the Hunt before starting the multi install.
  • Korean boards: I don't think the Korean ROM board instructions are relevant. My ROM board has a board model and says "Made in Japan." My mainboard also says "Made in Japan" but has a sticker with a bunch of hangul (Korean) over ICs 34-36.

Sprites and sound seem fine.

Anything else to try?

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Do the other flash modules program ok?

Could be a bad programming adapter or bad solder on the module. I couldn't test the soldering on the daughterboards because I don't have thar romboard revision. Doesn't look like a daughterboard issue to me but let me ask apoc.
 
Mitsurugi-w said:
Do the other flash modules program ok?

Could be a bad programming adapter or bad solder on the module. I couldn't test the soldering on the daughterboards because I don't have thar romboard revision. Doesn't look like a daughterboard issue to me but let me ask apoc.
Click to expand...
Thanks, I'll take another look at the flash modules.
 
Mitsurugi-w said:
Any luck?
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The daughterboard being in the wrong spot was the issue. All good now! Thanks for the quick support. Aside from my dumb mistake, the multi install was straightforward. It's a fun set of games that I-- with the exception of In the Hunt-- didn't even hear of until after their commercial lifecycle ended.

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One minor fix for the install manual: on ROM board M92-E-B, the Dream Soccer '94 MSB VRAM wire goes to IC10, not IC12 as written in install manual 1.1 page 15 or so. The picture is correct, and IC12 isn't SRAM, so it wasn't hard to figure out.
 
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Heads up if you have one of these proman adapters, the chip will look 'upside down' as indicated by the slashes.
(I'd recommend making that a solid white corner to be consistent :P)

Also these are NOR so you should use NOR063_Beta_D.exe and auto-detect should work
 
Yeah that's the old adapter that was shipped with Namco s1 multi. The adapters apoc and I sell with our multis is the other way around and doesn't look upside down. Plugging it in upside down won't hurt anything but the chip won't be detected.
 
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