Merlin 3070 Service And Maintenance Manual page 195

MESSAGE DETAIL
*DGM TRAM
*DGM
UART
*DGM
SOFT
DIAG none
20
MEANING
Transient RAM Failure
1. Repeat the sweep (press Next, then Detail) to verify
the existence of the problem.
2.
If the problem persists, check for bent or broken pins
behind the Diagnostics Module. If the pins are
undamaged, replace the module.
Serial Interface Failure
The serial communications port for the data terminal is
malfunctioning. If this fault occurs on the first diagnostic
sweep, the data terminal user interface will not be
enabled, although diagnostics may still be executed
through the front panel.
1.
Repeat the sweep (press Next, then Detail) to verify
the existence of the problem.
2. If the problem persists, check for bent or broken pins
behind the Diagnostics Module. If the pins are
undamaged, replace the module.
Software Error
A diagnostic software error has occurred.
1. Repeat the sweep (press Next, then Detail) to verify
the existence of the problem.
2.
If the problem persists, carefully note the system
configuration and events leading up to this message,
including any other system operating difficulties, and
report them to your supervision. Replace the
Diagnostics Module.
Begin Diagnostics
A sweep of diagnostic tests is about to commence. It will
be followed by a number which indicates the version of
diagnostic firmware being executed. No user action is
necessary.