Embryon was working fine one day, and doing this the next.
I am getting the first flicker, followed by flashes 1, 2, and 3. I am not getting the 4, 5, 6, and 7th flash. After the 3rd flash the MPU loses the 5V LED and the game just kind of stops trying to boot but the GI stays on. Sometimes there will be a voice callout from the game, but not always.
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I am using a new altek MPU, and even swapped this MPU into another game and it worked great, so its not the MPU.
I also swapped in a known working bridge rectifier boad and solenoid board with no change in behavior.
The Voltage on the Solenoid Driver Board seems to come and go. I was able to test at all TP's at one point and here is what I got:
TP1 - 5.2
TP2 - 135
TP3 - 5.1
TP4 - 188
TP5 - 15.95
Should be:
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Now I am not able to get a reading on the TP's at all. It just shows 0 VDC. (where does the voltage come into the SD board?)
I have noticed that when testing TP5 and TP1 on the SD board, a solenoid will fire. Not sure if that is normal? The same solenoid was also firing when testing the Rectifier Board, and when gently tugging on the wires at J3 and J4 on the SD board..
I have completely repinned all of the connections on both the MPU and Solenoid Driver board. I even repinned J4 twice haha!
What am I missing here, what should I look at next?