The screen is orange, but no text is displayed. Is this a hardware issue?
Do all the presets work?? --- you just can't see what preset it's on?
After I updated mine it would take afew seconds for anything to show on the screen. It did that the first probably 10 times I turned it on, then it worked fine.
If you're outta warranty, I'd open it up and try reseating the little ribbon cable that plugs the screen into the pot board. It's not hard, just be careful. If you have a warranty, return it though. I'm not an let ron is expert, but I tinker with computers so it's kinda the same
Hi Spencer,
I would first try a factory reset, if the issue continues please contact your dealer and they will be able to advise.
Regards
Marshall Support
I know marshall will say don't ever mess with it , but my code 100 was not worth having it shipped to get it fixed. Labor, parts, and shipping will kill your wallet. I replaced the entire knob board for about $76. Your code 50 is prob not worth it either. The problem is prob faulty connection with knob board or the CPU board possibly. Inside the amp are only a power supply board, the potentiometer board/ with screen, the headphone foot control little board, and the main pcb processor board. Not much to it.