Bad reel 2 driver

[Retro tech repair]

I have a 502 mpu with a bad reel 2 driver. Befor I spent hours trying to debug the board I thaught I would see if anyone knows a common falt on these. Yes I know it's in the mpu I swaped boards with a working machine and the problem followed the bad board.

[Retro tech repair]

I found a bad trace that may have caused it testing now.

Ya it was a bad trace running from the bigger MOSFET to the connector on the side of the board.

[qbert]

Good work and good eye.
Working these boards is much harder for me now that my eyes have gone to s--t.

Glad you got it working.
Rich

[Retro tech repair]

i have always had bad eyes. i was born with a deformity to my left eye, and actually saw backwards in that one eye up until middle school. with out my glasses( a bought time i get new ones) im practically blind.

we have a back stock of bad boards at work tho and i have been trying to get as many of them working as i can. i have a few experiments i want to do and im not going to use a good board for them.

while on the topic of experiments this is one of the bad boards i have been playing with. https://www.youtube.com/watch?v=iN6Jk9Vz0BY