fox_tango
Student
Hey All! I have my 3 recently acquired F-Zero AXs almost all up and running (2 of 3 are 100%). I know, I need to put up a post describing all the stuff I'm doing to them... it's coming. But for now, I'm working on the 3rd and final machine. The only failed board I have out of the three machines is the F-Zero Drive Board (or as the manual calls it: 838-13843-01 DRIVE BD FZR). This is the board with the two 2-character 7-segment display LEDs. The nice thing about having 3 machines is that it allows a lot of substitution and process of elimination troubleshooting.
This board basically displays nothing on the 7-segment displays, as if it's dead. However, the red LED in the lower corner does light up, indicating the presence of power only, I'm guessing.
Anyway, I was hoping to find a schematic for this board just to help understand where to go to troubleshoot. So I'm not referring to the wiring schematics that just show the interconnections between the different boards, but rather an actual schematic of this board showing the internal circuits and IC's. Short of that, I'll just have to start googling the datasheets for the various ICs and watching their behavior. I figured I'll start with basics and make sure the oscillator is running and see if there is any activity on the lines in / out of the processor.
Ultimately, I was able to locate a NOS for sale and have that on the way, but I'd like to repair the original to have as a spare just in case.
Thanks for reading!
This board basically displays nothing on the 7-segment displays, as if it's dead. However, the red LED in the lower corner does light up, indicating the presence of power only, I'm guessing.
Anyway, I was hoping to find a schematic for this board just to help understand where to go to troubleshoot. So I'm not referring to the wiring schematics that just show the interconnections between the different boards, but rather an actual schematic of this board showing the internal circuits and IC's. Short of that, I'll just have to start googling the datasheets for the various ICs and watching their behavior. I figured I'll start with basics and make sure the oscillator is running and see if there is any activity on the lines in / out of the processor.
Ultimately, I was able to locate a NOS for sale and have that on the way, but I'd like to repair the original to have as a spare just in case.
Thanks for reading!