You do not want to go there. There once was a thread that stated how to reset the hours on a marquee but the poster was chastized horribly. Not to mention while in the secret menu you risk making your marquee unusable by accidently reseting some of the factory software or something.
My advice would be to take note of the hours when you replaced the tubes and print it out on a label and sitick it in the PJ somewhere for reference. You will just have to do a little simple math.
EJ
My advice would be to take note of the hours when you replaced the tubes and print it out on a label and sitick it in the PJ somewhere for reference. You will just have to do a little simple math.
EJ