UPDATE:..Im doing a full resto on the machine,..i bought a new playfield overlay,..new plastics, I bought brand new "ALLTEK" selonoid & mpu boards,..fires up ,
..but i think the game is stuck in a test mode of some sort,..it goes through the 7 flashing lights on the mpu,.
the heartbeat on the selonoid looks good,.the voltages/leds are on,.
and i hear the sounds ( like if it was gonna start). but ive noticed a few things wrong,..maybe some expert pinheads can help out,..
1) first thing i do is turn the game on,..the opening game sound starts,..so far so good,.
2) then i press the self test switch one time,..and only two lights on the playfield flash on & off
all the bumper lights and the top 4 lanes stay lit as well. some bulbs need replacing..(need LEDs)
3 out of five score displays light up like this--> (8 88) another one has this,.--> ( 89)
3) then the FUN part kicks in,..i go by the manual and press the self test some more for selonoids, score display doesnt work right,.end game sounds, etc,..then i push the start button on the coin door, and it starts to chime in like a crazy parade,..ALL the sounds start repeating over and over, even after i push the self test button,.
I cant seem to stop the machine from going bonkers,..for example,..when i push a lane wire down,..the left bumper starts knocking,.when i hit a target, something else happens somewhere else on the playfield,..crazy eh?"
I "think" but im not sure 100% that the wires are crossed somewhere, and the lamp driver & aux driver is shot and needs to be replaced.
4) the backbox rotating lights & and the lights behind the alien backglass
are not tuning on,..
as you can see guys,...its almost there but not quite,.
OH yeah,..one more thing,..
4) i was leaning on the machine and felt some mild static along the metal side rails,..i think there is a ground loose somewhere . but i cant find anything present,..
I have the manuals for the mpu, selonoid, & space inv ..but the troubleshooting parts doesnt tell me about the locked sounds going on at once, and the stuck in test mode..HHHHEEELLLPPPPP!
any helpful hints or suggestions are appreciated,..