Working today on a Last Action Hero that suddenly lost both flippers??? I have checked the EOS switches as well as the cabinet switches cleaned the contacts and checked that they are all properly adjusted. Fuse F5 was blown on the PPB board as was F5 on the power supply. Replaced the fuses thinking I should see some kind of results but still no flippers & the new fuses do not blow. I have also tried jumper wires across the EOS switches and the cabinet switches but still cant get anything out of the flipper coils. Both of the LED's on the flipper control board under the playfield light when the flipper buttons are depressed for a second but do not remain lit if button is held I think this is normal? I have checked for voltage at the coils and with the game on in play mode and flipper button is depressed I get a spike of around 36 vdc that settles at around 4.7 vdc when the button is held down. The flipper board the game is running on is a 520-5070-00 and the board has had a lot of repair work around the fuse holders. I do measure good continuity across them though. I also tried a used and untested 520-5033-00 flipper board from a data east star trek but that did not work for me either.

Connector on back of playfield checks ok , noticed 2 areas of board damage in the upper right of the CPU board. I don't have a manual for the game can someone tell me what the damaged parts drive ? Flippers perhaps? picture attached looks like Q5 or Q6 and the tips next to them. Also on the chip above and to the left as well.

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Right slingshot coil has melted coil sleeve and frozen, as well as the "Ripper" kickback coil. Already replaced the sling coil had one in stock. Trying to source a board or maybe send this one out for repair. A Rottendog board for this game is missing a couple of wires/pins on connector CN3 ??

Question I have access to a used board from a Data East Star Trek would it work in this game? it looks very similar but also a few pins short on connector CN3

Hmmmmm I suppose was hoping for forward compatible. Star Trek 1991 board to LAH 1993

I tried a used untested board from a Maverick in this game but with that installed I now have no DMD or control lamps?

Nope board was untested just happen to get my hands on it. Something else is going on though I also tried a rottendog one and got the same conditions/results

I have disconnected the ripper kickback coil & tried 2 different rottendog boards as well as this one from a Maverick in this game. I still have no DMD display or any lamps lit. Game says "Ill be back" at start up and some of the playfield lamps light for about 1/2 a second when powered down ?????????????????????????????