(Topic ID: 173582)

Right Flipper Blows Fuse 7 Sys 11 Rollergames

By kilmarnock1350

7 years ago



Topic Stats

  • 9 posts
  • 3 Pinsiders participating
  • Latest reply 7 years ago by wayout440
  • No one calls this topic a favorite

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#1 7 years ago

Putting the game back together and getting a few weird things solved slowly.

New problem -- Right flipper actuation blows Fuse 7. Every time. Fuse 7 "protects the input to the +50V DC rectifier" (page 40).

Yes its the correct fuse... 3 of them now.

I can't find a grounding problem, I've verified all connections at both right flippers.

I'm not great at chasing schematics to determine where to start looking.

Any help is greatly appreciated.

#3 7 years ago
Quoted from wayout440:

Checked and adjusted the EOS?

Yep! First thing I checked

#6 7 years ago
Quoted from GRUMPY:

How about a pic of both right flippers and the right flipper switch.

Bad diode. Boom! Amazing one little diode causes so much problems... I was going nuts.

ALMOST THERE.

Thanks as always Wayout!

#8 7 years ago

Wayout...

The same coil (upper flipper) blew another fuse (F5 flipper protect, before it was the F7 50V rectifier protect fuse) and diode (opposite diode though). I assume at that point to replace the coil?

Funny thing is the game played for ~20 minutes or so before blowing.

I tried another fuse, and it lasted 5 mins.

Any other thoughts?

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