La Ravoire
hi,
i have a problem with wpc addams familly.
Mpu won't boot. No 19 blancking led. Just D21 is fix.
CPU is ok, ram is ok, rom and asic tested on another mpu and it's ok .
I have no acid in board.
Please help me !! 
Thanks
(Topic ID: 180661)
Hopkins, MN
Whats the history of this board?
1) It from a working pin that just failed one day.
2) Just bought the machine and this is how the MPU behaves when I power it on.
3) It was working and I was trying to do XXXX and now this is the state it's in.
4) It wasn't working and I've done XXXX and this is where I'm at.
I just bought the machine and this is how the MPU behaves when I power it on.
I try to change U1, U2, U3, U5, U21, U7, U11, U12, U20 and U10.
Thanks you
This is a good point. I had a similar issue on FT and I removed the MPU and checked each leg of the RAM to its destination trace using an Ohm meter and located a broken trace. Made a repair and it's been fine ever since. I recommend ohming out each IC chip leg to its destination to very the traces are good.
Hello , I have checked all each leg of the RAM, and it's OK. And i have test all pin of asic and it's ok too. !!!
I'm lost !!!
Thanks
1 month later
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