rally x / new rally x problems.....

kerri369

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i have a cocktail with a rally x with a spaeth kit to play new rally x (that's how i got it) the game boots up, credits, but doesn't play. the characters move, the maze moves,but in random patterns until finally you see and hear a crash. the self test says ok. any ideas. it did this once before but then went back to normal.what gives???
 
sounds like a voltage isnt right, maybe a little low/intermittent

i would start by checking the +5 volts on the PCB and out of the power supply and see what that says with a multimeter

gently wiggle the wires in various locations and see if it changes

does this have a switching power supply or the original ?
if it has a switcher, they tend to need readjustment every now and then depending on if its a cheap one or not

probably just needs to be turned up a scosh but dont do that without a multimeter connected as if the +5 volts goes above 5.35 or so, IC chips can be damaged
 
1. Check the switch that cycles the games maybe diconnect it all together.

2. Check the interconnect between the boards.

3. PM Spaeth
 
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