Strange ASCII character mixup in my iigs

[Wolfgang Kemper <wkemper@work.com>]

Hi,
I hope someone can help me to figure out what is wrong with my iigs.
during boot up and if you run dos or prodos the lower case "a" is always 
replaced with "#". It is not the keyboard ,it also happens on the boot 
message and even if I have no Keyboard attached.

Every DOS or PRODOS softw#re will show this bug in pure text mess#g#s.
(Just to show how it looks)


I do not know a lot about the iigs (for now) but I thing the character 
generation is mixed up ... but how could this happen? How to fix it.

PS:
uppercase "A" and all of the other characters are OK.
Running the self test is also OK

Thanks