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STUCK.. PP2 Atari brick has power, when plug into either AR2, DC drops big time???
My Pole Position cockpit was playing fine for years. Then it just crapped out 2 days ago. I started at the power brick. Getting all the correct voltages with nothing plugged in 13.4VDC on pins 1,2,3. 35.6AC on pins 6 and 7. and 5.5AC on pins 8 and 9... I tested it Exactly as DOkert did in his youtube video. When I plug the J5 into the brick, I get 13.4VDC at the molex to the AR2's when they are not plugged in. What it's supposed to be right? As soon as I plug Either one in to Either AR2 (that is not connected to the board) the DC drops to 1.4... It's like either AR2 is draining the DC to ground? and it's not plugged into anything else at all. No noticeable damage to either AR II... What in the world could have happened and where to go next?
I think it's highly unlikely that both AR2's went out at the exact same moment, but they may have. I have tested the BR and it tests out fine. Neg. lead to positive leg on diode test and I get 5XX on both ac legs. Pos. lead to Neg. leg and same on both AC legs. I did order 2 new big blues.. But I really think it's the at the ar2's....
The only thing I did when the game quit. (Monitor still worked but both red lights went out on the board) Was test continuity and it appeared that the +5 at the board possibly had shorted to ground at the edge connector. Would this cause both AR's to fail? Why would I be losing almost all DC when connecting to Etiher AR by themself?
ANY ideas or help is appreciated!!!!
My Pole Position cockpit was playing fine for years. Then it just crapped out 2 days ago. I started at the power brick. Getting all the correct voltages with nothing plugged in 13.4VDC on pins 1,2,3. 35.6AC on pins 6 and 7. and 5.5AC on pins 8 and 9... I tested it Exactly as DOkert did in his youtube video. When I plug the J5 into the brick, I get 13.4VDC at the molex to the AR2's when they are not plugged in. What it's supposed to be right? As soon as I plug Either one in to Either AR2 (that is not connected to the board) the DC drops to 1.4... It's like either AR2 is draining the DC to ground? and it's not plugged into anything else at all. No noticeable damage to either AR II... What in the world could have happened and where to go next?
I think it's highly unlikely that both AR2's went out at the exact same moment, but they may have. I have tested the BR and it tests out fine. Neg. lead to positive leg on diode test and I get 5XX on both ac legs. Pos. lead to Neg. leg and same on both AC legs. I did order 2 new big blues.. But I really think it's the at the ar2's....
The only thing I did when the game quit. (Monitor still worked but both red lights went out on the board) Was test continuity and it appeared that the +5 at the board possibly had shorted to ground at the edge connector. Would this cause both AR's to fail? Why would I be losing almost all DC when connecting to Etiher AR by themself?
ANY ideas or help is appreciated!!!!