playmate

Thanks for all the help- To answer some questions: Are you able to read the numbers on the diode body? No, it was damaged by battery corrosion. I could trace it out also but I thought I would ask here first for a schematic - nice sight for Lego enthusiast! JopieK said: "He is a tech, so likely he applied some juice to it (read: more than he should have ;))." JopieK is a real JoKer!

Yes, that is the whole assembly in which the power board is in. Do you think anyone here would have the schematic for the board so I can fix the one I have that is not working? I'm a tech and have a variety of parts available but need to know what the value of ZD1 is because it is defective. Thanks for the help.

I have a 7898 power board with a bad ZD1 (zener diode) on it but don't have a schematic to find the right value to replace it. Does anybody have some technical data on this board or info on how to get a replacement board? I would rather fix it if possible but would get another one if need be....thanks.