Troubleshooting
Service Instructions 755 A/756 A - 00.0 - 02/2019 465
7556, 7557 Control panel interface communi-
cation
• Cable disturbance
• Cable to control panel interface
defective
• Eliminate source of disturbance
• Replace cable
7558, 7559 Control panel interface communi-
cation: internal error
• Switch off and on the machine
again
• Perform software update
 p. 431
• Inform Dürkopp Adler Customer
Service
7801 Control panel interface communi-
cation: internal error
• Switch off and on the machine
again
• Perform software update
 p. 431
• Inform Dürkopp Adler Customer
Service
Error code 8000-8999: Error messages displays
8151-8154,
8156-8159
Information ADSP Boot/Xilinx Boot/ Boot
error: internal error
• Switch off and on the machine
again
• Perform software update
 p. 431
• Inform Dürkopp Adler Customer
Service
8252-8254,
8256-8258
Information ADSP Boot/Xilinx Boot/ Boot
error: Disturbance
Switch off and on the machine again
8351 Information Error in test pins, signal process-
ing, event processing, memory
wrapper, list functions: internal
error
• Switch off and on the machine
again
• Perform software update
 p. 431
• Inform Dürkopp Adler Customer
Service
8400 Information No readable update program for the control panel available. The control
panel program should be updated as soon as possible. Continue with
OK.
8401 Information No valid program for the machine available. Should a new program be
transmitted?
8402 Information Machine has a program for another class. Should a new program be
transmitted?
8403 Information Machine has an outdated program. Should a new program be
transmitted?
8404, 8405 Information Update failed! You may need to reload the control panel program.
Should the program be retransmitted nevertheless?
8406 Information Update failed! Please check the interface to the machine. Should a new
update be tried nevertheless?
8407 Information Update failed! Should the program be retransmitted?
Error code Symbol Meaning Remedial action
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