Haven't been able to get ahold of Tony for a few weeks since buying the board; he is probably busy but I really just need to move forward with helping get my friends DW fixed so I'm hoping someone here may be able to help.

Here is background (sorry about the length...)

(before installing new GLM opto board) All the features of DW work as they should, BUT as the game is on for awhile, it starts to give free time expander factor awards (even when mini playfield all the way down) and less often when mini playfield is all the way up it awards the jackpot shot w/o shooting it. It awards "randomly" any of the time expander or jackpot shots so it isn't just isolated to one or two of the opto switches.

Note my friends game just started doing this - he has had the game for 2-3 years w/o having these issues.

Pulled the OEM 10 opto board and it is crispy - all the solder joints on the ceramic resistors were cracked as well as the PCB itself is brown and cracked alot. Solder joints were reflowed but didn't make any difference - same symptoms as above. Tried another power driver board as well as I have a known good spare just because it was easy to do and still no difference.

Ordered the GLM opto board figuring it was either the problem or at worst someday soon that OEM board was going to need work and the game would need it.

Unfortunately, when the GLM board is installed, the game now at powerup gives one or a couple of these error messages (I haven't turned the game on / off a million times so maybe I could get a few others if I did that):

No CW movement of mini play field
No CCW movement of the mini play field
Opto switch 71 bad
Opto switch 75 bad

All of these errors are related to optos that go through that board as I assume the CW / CCW movement error is that there is something related to the mini playfield home opto the game doesn't like now.

With the CW/CCW errors, the mini playfield goes up / down a few times and doesn't stop in the correct position (stops on either 2nd or 3rd level).

So, I concede I don't know the root cause of the original problem and that it might be also be contributing to the issues when the GLM board is installed - what should I be looking at? I just don't understand why the GLM board doesn't like some of the optos right at powerup when the OEM board is ok with them...