I just finished up another Hi-Def NES but when I went to test it, nothing happened when I turned the power switch on. No image on the screen, no light on the Hi-Def board, nothing.
On inspection I realized I had the V and GND wires (attaching to where the 7805 was) backwards. I corrected the issue and now everything seems to be working great.
The question: Since I would like to sell this particular NES and have confidence in doing so, could I have damaged something by attempting to power the system in that state? There was no smoke, no pops, or any other obvious signs something was damaged. Does the Hi-Def board have protection against such a situation? As I mentioned, the system is working great and seems to have remained stable after a 4 hour test.
On inspection I realized I had the V and GND wires (attaching to where the 7805 was) backwards. I corrected the issue and now everything seems to be working great.
The question: Since I would like to sell this particular NES and have confidence in doing so, could I have damaged something by attempting to power the system in that state? There was no smoke, no pops, or any other obvious signs something was damaged. Does the Hi-Def board have protection against such a situation? As I mentioned, the system is working great and seems to have remained stable after a 4 hour test.