I have a DM and had the same problem, drove me nuts thinking I had a optic, driver, wiring, solder, or board problem.
motor would only run in left direction, and go as far as to hit the back board, so I tried to isiolate the problem, and found that
even thu there is no direct conection to the back box lights, they were causing the problem,, don't know if it was the power draw, but changed to led bulbs and that fixed my problem.

I know this sounds nuts, but unplug your back box lights and then turn game on and see if this fix's problem.

I'm at work, I can post latter, but if you just trace the back box lights wires back to the driver circut board, or if you have the maunaul.

back box lights are on J121, after looking at my game again I noticed that I also had replaced the connects on J121 and J118
which would make since, J118 is the motor 12 volt connection, and there next to each other.

Are you getting 12 v at the motor?

The claw not moving correctly is the only issue you have right now?

Put your meter on continuity and test each lead of the BR, perhaps a bit of solder when where it should not have gone... Was the BR the correct one for the machine?

Ding...Ding..Ding. Winner. There is your problem.

What connector did you remove?

I would be concerned that you have your top left ribbon cable starting at your MPU board is one row off.

If F112 still blows out after installing the new bridge rectifier, I think you need to recheck all connections make sure everything is plugged in correctly, especially the ribbon cables. A picture of both sides of the fliptronix board would help too.

Also, it would help having a picture of all the boards and how the wires are connected to all the boards so we can help look over any wrong connections.

Pulling J102 and now your claw is working fine. Hnnn...sounds like something is connected wrong. If so, I would expect you will still be blowing out F112 after the bridge is changed out again. Though it would be good to test it before replacing it.

Can you take a picture of the fliptronix board front and back please?

Also a picture of all the boards so we can see all the connections?

I just want to say for the record, that I have been having the same issues with my DM. I've swapped out ALL of the boards multiple times, since I have a stockpile of them and I got mine working to a point. At first, I couldn't get both the Claw and Elevator to work at the same time (either "Claw out of range," or "elevator broken"), although I could get them to work in Test Mode.
When I got both to work at the same time, during a game, the Claw would pick up the ball and NOT release it! Another issue I was having (possibly related?) was that when I got a high score, I could move the cursor through the initials, but I couldn't the game to select an initial.
I put all of this information on that other site.