Hello all,

I went to use one of my pins and when I turned it on I got a message of "ground short row 1 is stuck closed" as well as the outhole solenoid popping for a short time. I am not sure what I might have done or where even to start to fix this. Thus any help would be greatly appreciated!

Thanks!

Hello!

Thanks for the help. It is on TAF. I will take a look at the manual in the mornig (it has been a day!) and get back to you.

Thanks again!!!!

Hello all,

Thanks for the help. I appreciate it!

I went through the game, trying to focus on what I thought was row 1, and did not see any wires touching anything they should not (such as a diode) or any other noticeable issues. As such, it may indeed be the U20 chip. Regretfully, the chip is indeed soldered. Is there a way to test the chip before I try and desolder it? Is it possible to replace the soldered chip with a socket and then put in a new U20?

Thanks all!

Hello!

Thanks again all for the help... I looked again and do not see anything touching something else it should not. And, since I cannot access the DMD switch status I am stuck. I do, however, have a logic probe but do not know how to use it (sheepish feeling...). I am a noob for sure!

I suppose I get to learn how to desolder a PCB chip and install a socket. I will be sure to avoid the Jameco 16cent special!

I will let you all know what happens.

Thanks again!

Sam