Raizing Toaplan 2

Raizing (1993-1999)

"Toaplan 2" is an umbrella term referring to games which utilize Toaplan's second-generation chipset. As Raizing made their own expansions to this hardware, "Raizing Toaplan 2" is an appropriate designation for these variants.

Each game makes their own specific additions to the hardware, but all have the earmarks of Raizing's additions. The most immediately noticeable change is the addition of a superimposed text plane, freeing up the GP9001's "text" layer to render normal graphics instead.

Known Games🔗

Armed Police Batrider

No known game versions run on this hardware.

Battle Garegga

  • Ver Sat Feb 3 1996
  • Ver Sat Mar 2 1996
  • Ver Tue Apr 2 1996
  • Ver Tue Dec 15 2016 (emulated)

Mahou Daisakusen

No known game versions run on this hardware.

Shippu Mahou Daisakusen

No known game versions run on this hardware.

Known Parts🔗

Images and Diagrams🔗

No images currently added.

Repair Manuals🔗

No manuals currently added.

Repair Tips🔗

Problem Symptoms: color problems 🔗

It is common for the DAC on Raizing boards to develop color issues over time. The 74HCT273 flip flop outputs seem to go bad on these PCBs, possibly from electrical issues with a game cabinet or mis-handling of the board.

You can validate the DAC's output by going to the color test, which outputs 32-step color ramps for each channel, exercising all fifteen bits. If the gradient ramps have irregular steps or are missing sections entirely, first check that the resistors forming the DAC are okay, and following that, replace the 74HCT273s. Please see the note about desoldering from these boards.

Problem Symptoms: game plays blind (no video) 🔗

If the game plays blind, the failure can be in a number of places. If the color DAC's 74HCT273 chips have failed, then nothing will drive the video DAC. However, if the game is playing correctly, then it means the palette RAM is working, and the '245s controlling palette RAM address mastery haven't failed; the startup test will catch this problem. It is possible that the blanking signal (going to pin 1 of the '273s) is stuck, blanking the whole screen.

It is also possible that the GAL16V8 at position U33 named "TWIN-CAM" has failed, which is responsible for muxing text and GP9001 video output (and generating the blanking signal mentioned above). Check the page on the Raizing "TWIN-CAM" U33 for details.