Re: AEG D100-1M
i assume the no light on the top oven display
from the part lists both boards are the same do a swop
from the limited diagrams i have there seems to be a transformer on the board check the primary winding for open circuit may be a transformer failure and you may be able to source one
had a similar fault on another cooker ended up transformer was 12v out put so used a 12 halogen transormer i had lying around to provide power to the board which prooved board was ok then found a replacemant transformer and fixed the board saving the cutomer over £70
Dave