Hello there, I got a Diamond Lady very cheap a few days ago knowing that it was non-working.
When I start the machine all bulbs on the playfield light up, also the lamp on the backglass, a red led flashes in the sound/voice board. There is no sound or voice at all, the display is dead, but the flippers and slingshots coils work.
I wonder if the coils in the pop-bumpers are CPU controlled or not, is that red led flashing on the sound board triying to say something? Also a transistor in the driver board gets damm hot (I think is a n6013)
The CPU board has had the battery problem and the crystal, CPU and resistors around seem affected. I've to check with the oscilloscope.
Is a good idea to unplug the reset board? If I do so the red led on the sound board doesn't light up and the transistor gets hotter
Thanks