(Topic ID: 293409)

help with bally mpu as-2518-35 for electra

By arcademan1

3 years ago



Topic Stats

  • 10 posts
  • 5 Pinsiders participating
  • Latest reply 3 years ago by Skidave
  • No one calls this topic a favorite

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#1 3 years ago

ok the board is clean and tested in 2 different games so i know its the board causing the problem

changed all sockets and swapped over all socked chips to a known working board and visa versa

when the game boots up it stays on the single display " 0 "
weather there is a ball in it or not
when i was playing with the ram i didn't have it seated all the way and it booted
tried a different ram and still the same " 0 " in the display
but with it pulled up in the front pins out it boots up all the way

also i get the 7 flashes just no further

#2 3 years ago

Does the game go into attract mode? Controlled lamps flashing/animating? Do you hear the chirp from the sound board?

#3 3 years ago

No it does the boot and then kicks a couple solenoids and that’s it

#4 3 years ago

If I recall, Elektra requires the two balls to be in the trough to complete the startup process. Try "faking it" by closing them manually.

#5 3 years ago

Well I put it in a skateball and it does the same thing

#6 3 years ago
Quoted from arcademan1:

Well I put it in a skateball and it does the same thing

Did you also exchange the game eproms?
Are they both the same type of eproms (2732)?
If you left the Elektra eproms on the board when testing in Skateball, it is still the Elektra programming and expecting two balls on sertain switches.

#8 3 years ago

Time to recheck the ram socket I think....

#9 3 years ago

I checked that
And replaced it and re replaced it

#10 3 years ago

Did you clear audits on the MPU? Maybe RAM has crap values stuck?

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