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help auto launch problem

damo666

damo666

Registered
1 10 Years
Joined
Dec 12, 2013
Messages
130
Location
Scotland
hey guys just set up the Jurassic Park Lost World pin and the balls wont launch it tired to do it once and hasn't done a thing since, when i put the ball in the playfield it all seems to play ok it just wont launch the balls.
comes up on the dmd

OPERATOR ALERT!
#2 AUTO LAUNCH
COIL MALFUNCTION

im a first time owner duno if this is an easy fix? it worked fine when i played it when I picked it up. unfortunately its the weans main present for xmas and it doesnt work :(
Damo
 
Will that do it? from the image it looks like both wires are still connected to the solenoid coil wires, its just the diode thats come adrift? isn't the diode just there for voltage surge protection? please correct me if I've got that wrong ( highly likely )
 
Bad news. Kevlar is right. The diode protects the driving transistor. The fact that it's come adrift, probably means that the driving transistor has now gone short circuit, and blown the protecting fuse in the backbox. Ultimately you'll probably have to replace the transistor too. As a work around if you cannot get it fixed, I would disconnect the coil, find and replace the blown fuse, and play with the glass off, launching the balls into play by hand.
 
soldered it and still the same :( cant see any blown fuses? man xmas ruined already any ideas guys?
 
Check lower left circuit board fuse f5. If blown you can borrow one of f1-f4 as these are general lighting. But unless you disconnect the launcher, expect the launcher to lock on, and the fuse to blow again

Andy
 
hi Andy thanks for this had a look and there's no fuse 5 on there but did check the one designated to the coils and it seems fine :( i now need to go out last minute shopping ill be back on it in a few hours i do appreciate the help thank you

Damien
 
Are you looking in the backbox, not the cabinet.
Backbox, bottom left circuit board, top middle fuse F5
 
hello again ive taken pic of the backbox and of the lowest set of fuses and of the chart inside the back box, when i got in i resoldered everything at the coil its still doing the same
ill just need to explain to my wee biy daddys new at this haha
IMG_3215.JPG IMG_3217.JPG IMG_3218.JPG
 
My mistake. Thought it was original Jurassic park. As rude says , prob f6. Use a multimeter to test them out of circuit.
 
oh well unless maplans is open tomorrow haha get it sorted for him soon thanks for all the advice guys merry xmas just put on lethal weapon a real xmas movie :) maybe gremlins next!!!!
 
RudeDogg1 said:
Nice one, but more importantly does the bairn like it?
Click to expand...
ye man he was loving the dmd with the t rex and the shaker motor when it walks at the start he asked how do i turn it on and can i have some money to play it haha he now knows how to switch it on and get credits im gona stick it on free play tomorrow for him happy boy :) now i need to save more for my own pin haha
 
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