Pole Position II Issues

Arcade1VA

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I went to fire up the PPII yesterday and the screen came up a blank blue. I swapped monitors out to rule that out, and got the same thing. I metered a solid +5v at the test point on the board. May I assume I have some type of board issue, should I try reseating chips? I may have a possible sale on this so I need to get it up and going quickly. Thanks.
 
I would re seat the bridge connector to the two boards...

as well as the wire harness to the board first...

fairly often I need to do that w/ mine.. for no reason.. sometimes I have to blow in the connector as well...
 
I did both of those as well as made sure the socketed chips were set in good....no change.
 
In the midst of testing my pole position 1 boards, I ran across a board with a blue screen (no crash sound when the machine gets turned on, just a blue screen). I pulled my z80 and my z8002 chips to reseat them and upon reseating , I noticed that one of the sockets for my z8002 chips had 2 broken sockets (looked down into them and saw no metal clip for the pin to push up against). As a temp solution, I soldered wires for both broken pins from the leg of the chip to the other side of the board and that fixed the problem. I'll be picking up new sockets for all 3 of those chips, but you may want to check your sockets and make sure they're all ok.
 
Pulled the Z80 and Z8002's, everything was intact with them. Reseated and still got the blue screen. Wondering what this could be. I do not have any way to trouble shoot this at all.
 
Yes. I actually got the game to come up and play now, but the steering is not functioning correctly. It registers o.k. in the test, but during game play, it simply will not turn correctly.
 
O.k. got everything going again. Game plays great. Thanks to all who answered my post.
 
To be honest, I am not 100% sure. I did pull the connectors and clean off the contacts, then reseat everything. I really didn't see any change until I metered the voltage at the ARII +5v pins and then all of the sudden it came to life. I will probably pull the ARII board in question and reflow the solder on the connector pins, as I am wondering if there is an issue there, and if not, possibly the power brick supplying the volatge to the ARII's. I initially ony metered 1.8v on the display PCB at the +5v test point, and then went to the ARII. I have since powered it on several times and it seems to have settled in. I am going to leave it off for a bit and try it again to see if it shows the same issues or not.
 
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