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(Topic ID: 262573)

EBD Blows F3 fuse right away


By R8f1k

8 months ago



Topic Stats

  • 38 posts
  • 5 Pinsiders participating
  • Latest reply 7 months ago by Quench
  • Topic is favorited by 1 Pinsider

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There have been 6 images uploaded to this topic. (View topic image gallery).

MPU_DIPSWs(a1).jpg
pasted_image (resized).jpeg
EBD_DIPSW_BallsPerGame.gif
Alltek_EBD.png
Weebly_EBD.png
Screenshot (1) (resized).png

#1 8 months ago

EBD Blows the F3 fuse as soon as it is powered up. I unplugged all the connectors to the rectifier, MPU and the solenoid board. Then I did as follows:
1) Plugged in rectifier J2 only, fuse survives.
2) Plugged in rectifier J3 and J2, fuse survives.
3) Plugged in rectifier J3 and J2, and J3 on the solenoid board, fuse survives.
4) Plugged in rectifier J1 through J5, J3 and J4 on the solenoid board, fuse survives.
5) Plugged in rectifier J1 through J5, J3 and J4 on the solenoid board, plugged in J6 on rectifier board, fuse blows.

J6 says "Transformer"

Thoughts?

#2 7 months ago

Swapped my Embryon rectifier board into EBD, fuses don't blow anymore, game will start BUT now I have other issues......

Game won't load ball into trough, slingshots don't work, jet bumpers nothing, drop targets don't reload.

Solenoid board and rectifier board rebuild?

#3 7 months ago

I recommend putting the rectifier board back in the other machine and concentrating on the original issue. The F3 fuse may be blowing due to a bad diode at locations CR5,Cr6,Cr7 and CR8. Test these diodes. The fuse F3 sole purpose is to protect the transformer from bad components.

#4 7 months ago

To explain further. The diodes mentioned above rectify 14 volts AC voltage from the transformer into 12 Dc voltage that goes to the solenoid driver board and is the regulated down to 5 volts to be used for the MPU board and others. You have said that the game boots up with the rectifier board out of Embryon, so that leads me to believe that the original problem lies within the EBD rectifier board.

#5 7 months ago

I am pretty sure that one of the rectifiers on the board is bad.

#6 7 months ago

However, I still have no solenoids firing. Game will keep score, but no solenoids except flippers......

#7 7 months ago

You could take one of the diodes out of the rectifier board from Empryon to replace the suspected bad diode. Then you would know for sure.

#8 7 months ago

If I were you I would try to get the EBD rectifier board working properly and go from there. Solve one problem at a time.

Quoted from R8f1k:

However, I still have no solenoids firing. Game will keep score, but no solenoids except flippers......

#9 7 months ago

I am leaning towards one of the rectifiers being bad. The Embryon board is newly rebuilt and F3 is driven by one of the rectifiers. It also looks like some bad soldering done on the board. I also have attract mode which I did not have with the the EBD board. I am going to put all new parts on the rectifier board just to ensure that it is all set.

#10 7 months ago

Ok. touch up any questionable solder points. A shotgun approach is not necessary. The issue is the 12 volt circuit. 1 fuse and 4 diodes.

#11 7 months ago
Screenshot (1) (resized).png
#12 7 months ago

Got it, now what about having no solenoids function?

#13 7 months ago
Quoted from R8f1k:

Got it, now what about having no solenoids function?

Your underplayfield solenoid fuse is blown. That your flippers work and your solenoids don't is the classic symptom of that because the flippers don't actually go through that fuse but all the other ones do. Your knocker probably works as well, and so does your coin lockout, so you know your solenoid voltage is good.

Time to rebuild your rectifier board.

#14 7 months ago

Bad fuse holder. Cracked in half. Installed new one, still no solenoids. However on coil test mode, all of the solenoids work except 16-25. Now what?

#15 7 months ago
Quoted from R8f1k:

However on coil test mode, all of the solenoids work except 16-25.

16-25??
Eight Ball Deluxe only goes to 20 in solenoid test mode.
Are you running an aftermarket MPU board set to the wrong game?

#16 7 months ago

EDB aftermarket MPU, runs through 25 coils. Set to the right game.

#17 7 months ago

Out hole does not work, ball trough does not work, single stand up does not work, some of the drop targets in the large bank fire repeatedly upon start up.

#18 7 months ago
Quoted from R8f1k:

EDB aftermarket MPU, runs through 25 coils. Set to the right game.

What MPU board have you got?
And how do you have the game selection switches set?

The aftermarket boards use the factory based ROM that only activates 20 coils in solenoid test mode. Unless you have a special modified ROM that supports an extra 5 solenoids then the game setting is wrong...

#19 7 months ago

NVRAM.WEEBLY.COM October 2019 Rev. 16

MPU-200

Game settings

123 off
4567 on
8 off

#20 7 months ago

Side note, I do have 7 digit displays and my settings on the red 4 switch bank are

All Off/Out = Bally & MPU100
All on/in = MPU200 (All off 1-4, down position)

#21 7 months ago
Quoted from R8f1k:

Game settings

123 off
4567 on
8 off

I don't know where you got those game settings from but they don't match either of the EBD settings in the nvram.weebly.com manual.

Weebly_EBD.png

#22 7 months ago

WORKS!!!!!!

#23 7 months ago

I can't remember where I got those settings, but they are clearly not right!

#24 7 months ago
Quoted from R8f1k:

I can't remember where I got those settings, but they are clearly not right!

Seems like you accidentally looked up the Alltek manual.

Alltek_EBD.png

#25 7 months ago

Probably......

#26 7 months ago

Any reason why I would get only 2 balls during game play? Never 3.......or 5

#27 7 months ago
Quoted from R8f1k:

Any reason why I would get only 2 balls during game play? Never 3.......or 5

Balls per game are set by dip switches 31 and 32 on the MPU board:

Note when you power up the game and it enters attract mode, the game welcomes you by saying "Eight Ball Deluxe, x Ball", where x is the number of balls set per game.

EBD_DIPSW_BallsPerGame.gif

#28 7 months ago

Still gives me 2 ball.....hmmmmmm

#29 7 months ago
Quoted from R8f1k:

Still gives me 2 ball.....hmmmmmm

Did you power off then back on after changing the switches? They're only read once during powerup - i.e. switch changes don't take effect until you reboot the machine.

#30 7 months ago

Turned machine off, changed switches, powered back up. No change

#31 7 months ago
Quoted from R8f1k:

Turned machine off, changed switches, powered back up. No change

Post a picture of all 32 dip switch settings.

#32 7 months ago

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pasted_image (resized).jpeg
#33 7 months ago

Dips 31 and 32 are on. Turn them both off for 3 balls per game.

#34 7 months ago

DIP switches 31 and 32 are the very top two switches. They're still set on 2 balls/game.

MPU_DIPSWs(a1).jpg

#35 7 months ago

Did the setting change solve your problem?

#36 7 months ago

That did it! Sorry, I have an orchard and we are doing spring pruning.

#37 7 months ago

Any insight into what settings for EBD is best for experienced players?

#38 7 months ago
Quoted from R8f1k:

Any insight into what settings for EBD is best for experienced players?

The Eight Ball Deluxe manual has "recommended settings" for both 3 ball and 5 ball games. Don't forget to adjust the software settings.
Take some time to go through the manual to understand the options so you can tune game play however you want.

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