JohnBean B9800 - Page 43

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E990 Internal error
Code C28
Complaint Turning the machine on the display shows E990. Machine Halts.
Root cause Bu! er over" ow
Service Code C47, C86, C80, C81, C115, C84, C88,
Actions to do
Perform C47.
Replace the Integrated Display
E991 Internal error
Code C28
Complaint Turning the machine on the display shows E991. Machine Halts.
Root cause Bu! er over" ow
Service Code C47, C86, C80, C81, C115, C84, C88,
Actions to do
Perform C47.
Replace the Integrated Display
E992 Internal error
Code C28
Complaint Turning the machine on the display shows E992. Machine Halts.
Root cause Synchronous receive timeout
Service Code C47, C86, C80, C81, C115, C84, C88
Actions to do
Perform C47.
Replace the Integrated Display