Who here does Robotron board repair

There is a guy on ebay that fixes robotron boards. He is in Texas and charges $125 I think with a 1 year warranty.
 
There is a guy on ebay that fixes robotron boards. He is in Texas and charges $125 I think with a 1 year warranty.

bwahahahahaha! I know who that guy is.



I've fixed them in the past, but there are others better suited for this type of work......
 
What are the symptoms? It may be something easily repaired by you and then you don't need to send it anywhere.

Dead is not very descriptive. Are you seen any video? Are there any diagnostic numbers flashing on the LED on ROM board. Try pulling the back of the cabinet off and pulling the interlock out. Sometimes the door pulls away and the interlock doesn't engage.

The more details we can get the better the advice we can give.

ken

Edit: I'm not the guy in Texas that charges $125.
 
Yellowdog repaired my Joust boards. He knows what he's doing.
I guess You could say he worked on my stargate boards too.
Since I bought my stargate from him! :D
 
What are the symptoms? It may be something easily repaired by you and then you don't need to send it anywhere.

Dead is not very descriptive. Are you seen any video? Are there any diagnostic numbers flashing on the LED on ROM board. Try pulling the back of the cabinet off and pulling the interlock out. Sometimes the door pulls away and the interlock doesn't engage.

The more details we can get the better the advice we can give.

ken

Edit: I'm not the guy in Texas that charges $125.

It shows the initial rug pattern and then goes to a static screen of red horizontal lines. If you watch the ROM board, it displays 1 2 7 twice and then just repeats 1 3 1. I've tried swapping both of those RAM locations with other RAMs but it doesn't change anything. I also pulled out the CPU board and removed/reflowed the solder on the header pins for the three connections on the top of the board as a few of them were bad.

I installed the 4164 RAM replacement kit but that didn't change anything either. +5v is good as measured at the 4164's. I swapped in another CPU board and the game works so I know this CPU board is the problem.

Any ideas?

Rodney
 
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