I have a 5500 that won't boot up period. The upper screen is on but has no image period. The lower screens don't display anything.
The Back processor displays DFD28-0001
~~~~~~~~~~~~~~~~~~ From the manual ~~~~~~~~~~~~~~~~~~~~
xFD28-xxxx Indicates that the processor ROM failed core test. Four digits
of additional information indicates the ROM that failed.
Where the leading “x” can be either a K (Keyprocessor), D (Scan Converter), or
E (Scanner), representing the keyprocessor that has failed.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The 3.6 V battery was completely dead, so we replaced it but it didn't help the problem.
Has there been a Rom failure? Or did it lose the BIOS (or some other memory) setup?
We're not sure where to proceed from here. ???
Any help would be appreciated.
Thanks,
Pat H.
