(Topic ID: 16014)

No power to flippers. Any ideas?

By PinballGiant

11 years ago


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Topic Stats

  • 79 posts
  • 13 Pinsiders participating
  • Latest reply 11 years ago by Tommi_Gunn
  • Topic is favorited by 1 Pinsider

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#24 11 years ago

Just picked up a Robocop pinball and everything works except both flippers.

Did you get the game knowing the flippers didn't work or you found out they didn't work when you got it home?
It looks like your problem is off the PCB. Also the manual does not have all the schematics. the only thing i could find was this.

CN19 says "Flipper ground from CPU Relay".
CN1 says "switched ground for flippers"

So I am not sure what this means as there is no CPU PCB and various other schematics.
Also there is a .1uf cap across the flipper switches.
Did you measure across each flipper switch to make sure they were open circuit?

Does anyone have the full manual with all the schematics? robocopFlipperschem.jpgrobocopFlipperschem.jpg

#28 11 years ago

Not having this game, as I stated previously, it would be nice to have the full set of schematics and interconnects.

Quoted from PinballGiant:

I picked up the robocop as a bundle package along with a Party Zone and jokerz and went into it knowing that the flippers weren't working...maybe a bad idea . Also, if the problem goes away when we unhook CN2 then why do we think the problem is coming from CN1 rather than post CN2?

Good bundle package and you'll get Robo up and running, so many here to help.

I'm thinking CN2 is supplying the Voltages to the PCB, so when disconnected no power to the PCB and associated circuits. Again schematics would be very helpful. Wonder why IPDB version is missing most of the schematics.

#35 11 years ago
Quoted from robertmee:

Use the Checkpoint schematics....Same flipper board.

Thanks robert

#38 11 years ago
Quoted from PinballGiant:

When I start a game however, both fuses blow immediately.

Quoted from pdman:

Also there is a .1uf cap across the flipper switches.
Did you measure across each flipper switch to make sure they were open circuit?

#56 11 years ago
Quoted from PinballGiant:

After I looked at my board he was right, this board is for games with EOS switches. HOWEVER, I found this service bulletin http://www.sternpinball.com/downloads/sb103.pdf and looking at my board shows that someone modified it just like the bulletin says so that it can be used with non EOS games.

The bulletin is for reworking a non EOS PCB to a EOS PCB.

Quoted from PinballGiant:

Robo Cop uses a 520-5033-00, the one in the picture is a 520-5080-00. They are not compatable or interchangable, pin arrangement is different and WWF has EOS switches, Robo Cop doesn't

So what you have is a 5080-00 modified???
You have to rework the flipper PCB making it a EOS PCB, you need to revert it back to a NON-EOS PCB.

#57 11 years ago

What is the part number on your Flipper PCB??

#60 11 years ago
Quoted from PinballGiant:

pdman said:

The bulletin is for reworking a non EOS PCB to a EOS PCB.

I think it's the opposite because the bulletin says they will no longer make NON EOS boards and proceeds to show how one can make an EOS board a non EOS board...

Your Right, the instructions to modify the PCB show this but the subject line of the Service Bulletin is:
SUBJ: Solid State Flipper Board, 520-5033-00 (Non-E.O.S) conversion to
Solid State Flipper Board, 520-5080-00 (E.O.S)

It should read :
SUBJ: Solid State Flipper Board, 520-5080-00 (E.O.S) conversion to
Solid State Flipper Board, 520-5033-00 (Non-E.O.S)

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