robotron ?

ory

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Had a working robotron until my saltwater tank upstairs dump water down the dasement wall into the back of the game. Now just a baby shit yellow screen. So i took my cpu out and put it in my stargate . I get a 131 but the voltage is good 5 12 -5 no ground. so any ideas.
 
That's the first chip it checks, so many times when it gives that particular error it's actually something more serious. Could be your decoder chips, have you recently cleaned all your chips?
 
That's the first chip it checks, so many times when it gives that particular error it's actually something more serious. Could be your decoder chips, have you recently cleaned all your chips?

yea i figured that being the beginning of the chain, didn't know if the chips were swapped yet tho, now we do so ram prollly isn't the culprit, the MPU probably got wet and took a dive.
 
ruh roh.

Look close at your ram chips on your robotron board and make sure they're 4116's. If somebody made them 4164's and modified your connector in your robotron you may have just fried all the rams :( Hopefully not.
 
looking around found d9 diode is no longer . so ill start looking for a in5817. so till i find one later thanks
 
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