SmartSeis
TM
Maintenance Manual
6
To reload the software, under DOS, press 999, and then ENTER after the prompt is displayed.
Again, reloading the software should be a last corrective action.
1.4.2 Hardware
Display
If the
display is blank
after booting
, test the power supply to the LCD. Press the silver
buttons at the top of either side of the SmartSeis
TM
and lift open the top display panel. There is a
row of three light-emitting diodes (LEDs) on the right underside of the panel. If any of them are
not lit there is a problem with the panel power supply.
If the LEDs are lit, proceed to test the condition of the front LCD panel. Power down the
seismograph, plug in an external monitor, and turn the power back on. If the display appears
normally on the monitor, it is likely that the LCD panel is faulty (see
Section 2.6, Replacing the
front LCD panel
). Note that the external monitor is only driven when its presence is detected
on
powering up
the seismograph.
If you observe a
dark display
, try adjusting the screen contrast with the two arrow keys. If the
display variably becomes dark, it may be because the screen is overheating. Typically, this
occurs if the display is facing the sun and is corrected when moved away and allowed to cool.
Storage devices
Most problems with the floppy and hard drives will be indicated by error messages upon the
system’s self-check during boot-up. Consult the file
ERROR.LOG
in the
C:\SMARTSEI
directory to view the errors and identify the associated board if applicable.
A bad hard drive is usually indicated by the message “
HDD failure
” or something similar, and
may be caused by a bad hard drive or a bad OMNI board. Replace the OMNI board first, as
this is easiest (see
Section 2.3, Replacing the OMNI board
). If problems persist, you may
want to try to diagnose or fix the hard drive problems with commonly available software such as
Norton Utilities; however, you may ultimately need to replace the hard drive (see
Section 2.5,
Replacing the hard drive
). Once the hard drive is replaced, the DOS and the system software
will need to be re-installed from the back-up floppy disks.
A
floppy drive error
will be indicated by the message “
FDD failure.
” This error is typically
caused by a bad floppy drive or a bad OMNI board. If the problem persists and if you have a
spare floppy drive, you can try to connect it without removing the existing one. Disconnect the
ribbon and power cables from the existing drive and plug them into the spare. Make sure the
new drive does not short itself against any conductive material.
