Bang & Olufsen DVD 2, Service Manual

Page: 12 / 70

2.6 Service Mode
ERROR handling
When a command is terminated by the user, and an error occurs in the communication,
the results are returned from a diagnostic nucleus to the control/service PC.
The result looks as follows
<number> : <string> [ Error] @
<number> is a 6-digit decimal number padded with leading zeros if its value is less
than 6 digits. The first four digits identify the generating nucleus (group and nucleus);
the last two digits indicate the error number.
[ XX YY ZZ ]
Error Code
Nucleus Number
Nucleus Group Number
For further specifications please refer to the enclosed appendix.
Cancelling Service Mode
To cancel Service Mode, disconnect DVD 2 from mains and wait 0 sec. before
rebooting the system.
End User/Dealer script
The ‘End User/Dealer script interface’ gives a diagnosis on the DVD 2.
During this mode, a number of hardware tests (nuclei) are automatically executed
to check if the recorder is faulty. The diagnosis is simply a “FAIL” or “PASS”
message. If the message “FAIL” appears on the display, there is apparently a
failure in the recorder. If the message “PASS” appears, the nuclei in this mode
have been executed successfully. There can be still a failure in the recorder because
the nuclei in this mode do not cover the complete functionality of the recorder.
Before the product is returned to the customer this ‘End User/Dealer script’ test
must be executed to ensure correct functionality of the recorder. If the test fails,
continue to the fault flow chart to locate the error.
This test can be executed by:
. Typing ‘script’ in the command promt line (see section fault flow chart for further
information)
or by
2. Pressing button ‘S6’ on back panel when connecting to the mains. The DVD
Recorder is tested stand-alone: no other equipment than the DVD Recorder is
needed.
Cancelling ‘End User/Dealer script’
To cancel ‘End User/Dealer’ script, disconnect DVD 2 from mains and wait 0 sec.
before rebooting the system.