Jurassic Park, no display or not working

[robm]

I just picked a Data East Jurassic Park, and the screen display worked (completely) when we picked it up for a few minutes, then went blank - it would work intermittently after that.  Once i got home - it didn't work at all, then cleaned all connectors and the machine fires up fine as long as the CN2 connector (on display board) is not plugged in - the led diagnostics on the CPU board appear fine.

As soon as the CN2 connector is plugged in, the machine stops working BUT the display board displays a few lines of randomly spaced pixels, so obviously there is a problem somewhere here - would it be a short and what should i check?

Thanks

Rob

[MartyJ]

What are the LED diagnostics flashing?  Should flash a number of times?

[MartyJ]

IF was working 100% when you checked machine, now with it at home not working - hmm.  You've checked connectors, and they are OK.

I would also check the 18 volt lamp matrix fuse (8 amp slo-blo, with the blue/white wire connecting to the fuse holder) and also make sure the EPROM for the DMD is seated correctly as well.

[robm]

OK, my fault completely.... i put the power connector on backwards so it was just shorting out.

Display is working fine, so cleaning the connectors was the problem (along with my dyslexia)

Now i'll play it a bit and try and find some other problem..

Thanks