Lexmark X7500 Service Manual - Page 44

MFD Controller Cage Errors, Error, number, of beeps, LED pattern, Error message, displayed to user

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4036-501 MFD Controller Cage Errors MFD controller cage errors are errors detected by the MFD controller card within the MFD cage pertaining to electronic cards associated within the cage. All errors are posted to the user interface touch screen along with audible beep codes and LED codes (visible on the lower left side of the MFD controller card). During the Power-On Self Test procedure, errors detected cause a number of audible beeps to be produced three times. The corresponding LED pattern continuously displays on the controller card until the system is powered down. Use the following tables to read the beep/LED codes and follow the recommended repair action. There are two rows of four LEDs. The LEDs are visible with the MFD controller cage lid removed. The LED pattern shown depicts which LEDs are illuminated in the two rows. Use caution when removing the lid while the system is powered up. Error number 21 Number of beeps LED pattern 2 Error message displayed to user interface Modem not found Corrective action Modem on the MFD controller card is not found. Replace the MFD controller board. 22 2 PCI Bus failure Replace the MFD controller board. 24 2 28 2 Serial Port failure Problem with TTY/ Serial Port. Replace the MFD controller board. Problem with the CPU Replace the MFD controller board. 2-4 Service Manual

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2-4
Service Manual
4036-501
MFD Controller Cage Errors
MFD controller cage errors are errors detected by the MFD controller card within the MFD
cage pertaining to electronic cards associated within the cage. All errors are posted to the
user interface touch screen along with audible beep codes and LED codes (visible on the
lower left side of the MFD controller card). During the Power-On Self Test procedure,
errors detected cause a number of audible beeps to be produced three times. The
corresponding LED pattern continuously displays on the controller card until the system is
powered down. Use the following tables to read the beep/LED codes and follow the
recommended repair action.
There are two rows of four LEDs. The LEDs are visible with the MFD controller cage lid
removed. The LED pattern shown depicts which LEDs are illuminated in the two rows.
Use caution when removing the lid while the system is powered up.
Error
number
Number
of beeps
LED pattern
Error message
displayed to user
interface
Corrective action
21
2
Modem not found
Modem on the MFD
controller card is not
found. Replace the
MFD controller board.
22
2
PCI Bus failure
Replace the MFD
controller board.
24
2
Serial Port failure
Problem with TTY/
Serial Port. Replace the
MFD controller board.
28
2
Problem with the CPU
Replace the MFD
controller board.