(Topic ID: 259581)

F14 Tomcat Switch Matrix Issues

By kevlarnic

4 years ago



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  • 6 posts
  • 3 Pinsiders participating
  • Latest reply 4 years ago by kevlarnic
  • Topic is favorited by 1 Pinsider

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#3 4 years ago
Quoted from kevlarnic:

Switches 51 & 52 . I checked them, & both diodes & switches are good. I replaced Q42 (top of matrix) cause it was bad & Solenoid 12 “ Line of Death Kickback” didn’t fire when it hit the switch that initiates it to fire.

If Q-42 was bad then all the switches in column 7 would not work in switch test. Switches 51,52 may just be dirty or out of adjustment or have not been hit during the last 30 games.

Quoted from kevlarnic:

Solenoid 12 “ Line of Death Kickback” didn’t fire when it hit the switch that initiates it to fire.(switch #55 )

There can be a number of reasons that the kick back doesn't work in game mode. But if firing this coil blows Q-42, then there is a short from the 50 volt coil voltage to the 5 volt cpu voltage.

Quoted from kevlarnic:

1 other thing that may or may not relate is lamp 04C in the solenoid/lamp matrix doesn’t work & bulb was replaced ..

There are 2 bulbs for solenoid 4c. Do both not work? If both don't work then locate the flasher resistor board with the white/yellow wire and test the large resistor, it should read 5 ohms.

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