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» F-14 Tomcat Flippers constantly activated FIXED!

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F-14 Tomcat Flippers constantly activated FIXED!

By Dmoore11

4 years ago

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8 posts
4 Pinsiders participating
Latest reply 4 years ago by Dmoore11
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F-14 Tomcat Williams, 1987

#1 4 years ago

???

Just a few gremlins left to figure out in the F-14 Tomcat. I got the background music back (faulty cable), got the L/R kickers and center pop jet working (bad 7402 IC) and now I'm trying to figure out the flipper issue. When I turn the game on and it's in attract mode I can still activate all four flippers by pressing the two flipper buttons. I can start up a game and it plays just fine. After the game is over, the flippers are still activated. I have replaced the Relay and a transistor (Q67) and it has not helped. I think there is a 7402 IC and a couple of other components that may need to be looked at but was wanting to see if anyone had any experience with this issue that might be able to provide some direction. .

Post last edited 4 years ago.

#2 4 years ago

INK

Inkochnito

Pinside member

Piershil

12y 91,650 3,169 12

Maybe hacked wiring under the playfield?
Does the relay work in the solenoid test?
Otherwise I would also say, bad chip...

#3 4 years ago

CDL

crlush

Pinside member

Ray Twp., MI

11y 86,300 2,760 8

Do the front and rear left diverters work? I had a problem with mine that kept blowing the rear diverter tranistor pre driver and pia, also blew the bridge rectifier on the flipper board, the one time it happened it kept the flippers active in attract mode.

#4 4 years ago

GMK

grantopia

Pinside member

Fairview Park, OH

8y 99,600 3,565 8

When you power down the game do the flippers drop?

#5 4 years ago

CDL

crlush

Pinside member

Ray Twp., MI

11y 86,300 2,760 8

Quoted from grantopia:
When you power down the game do the flippers drop?

Hes saying when powered on the flippers will energize when you press the burttons, they dont stay up while powered on.

#6 4 years ago

GMK

grantopia

Pinside member

Fairview Park, OH

8y 99,600 3,565 8

Quoted from crlush:
Hes saying when powered on the flippers will energize when you press the burttons, they dont stay up while powered on.

I think he saying the opposite...or am I missing something?

“After the game is over, the flippers are still activated”.

Sounds like they are stuck in the up position or they are always able to function even in attract mode.

If they are working in attract mode, I would suspect the flipper relay or an IC. I had this same issue in a Taxi and it ended up being that U50 was bad.

#7 4 years ago

???

Dmoore11

Pinside member

Fordyce, AR

4y 14,400 11

The flippers always drop when the buttons are released. Sorry for any confusion.

2 weeks later

#8 4 years ago

???

Dmoore11

Pinside member

Fordyce, AR

4y 14,400 11

I replaced the 7402 @ U50 and 7406 @ U56 and it fixed the flipper problem! Thanks so much for everyone's help!!

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