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(Topic ID: 263773)

Data East Wont Boot


By the96stang

8 months ago



Topic Stats

  • 10 posts
  • 5 Pinsiders participating
  • Latest reply 8 months ago by PinballManiac40
  • No one calls this topic a favorite

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Linked Games

#1 8 months ago

I have a monday night football, with a new power supply, and new roms that wont boot. All of the voltages are in line with what they should be on the MPU. Where do I go from here?

#2 8 months ago

When you say won’t boot do you mean it does not turn on?such as lights,nothing on DMD screen ect.?

#3 8 months ago
Quoted from the96stang:

I have a monday night football, with a new power supply, and new roms that wont boot. All of the voltages are in line with what they should be on the MPU. Where do I go from here?

What are the board diagnostic LEDs doing?

Try removing the socketed chips, cleaning and reinstall. Not uncommon way to get a board booting again.

#4 8 months ago
Quoted from pinmike:

When you say won’t boot do you mean it does not turn on?such as lights,nothing on DMD screen ect.?

Pre DMD era.

#5 8 months ago

I have tried reseating chips. Only the center LED comes on for 5v and the game says welcome to monday night football

#6 8 months ago
Quoted from the96stang:

I have tried reseating chips. Only the center LED comes on for 5v and the game says welcome to monday night football

Ignore the speech for now, that is just telling you the sound board successfully booted up which will come up even if the MPU is unplugged.

For some reason, MPU is not booting up and running the program hence lack of blanking led illuminating.

Could be a bad PIA, any prior info about the board?

See here:

https://www.pinwiki.com/wiki/index.php?title=Data_East/Sega#Data_East_CPU_Board_LED_Flash_Sequence_at_Boot_Up_When_Working_Properly

#7 8 months ago

What was the board doing before you changed the game ROMs?

#9 8 months ago

do you have /know how to use a logic probe?

#10 8 months ago

Please post a picture of the MPU.

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