TROUBLESHOOTING
8-5
that determines lamp fail. Anything below this level is
considered a failure.
5.
Push the
[Y/+]
or
[N/-]
key to increase or decrease the
threshold value “yyy” until it is about 10 - 15 counts
above the “xxx” value. This will optimally set the lamp
failure threshold. Press
[MODE]
key to exit this
display. If the threshold value has changed, a message
“Save?” will appear. Press
[Y/+]
to confirm the
change,
[N/-]
or
[MODE]
key to abandon the changes.
6.
Turn the monitor off and replace the lamp.
7.
To verify the above adjustment, turn the monitor back
on in Diagnostic Mode and press the
[MODE]
key until
“Lamp xxx” is displayed. Press the
[MODE]
key once
more so that “Fail yyy +/-” is displayed. The lamp
current reading “xxx” should be higher than the
threshold value “yyy” by at least 10-15 counts. If not,
the lamp may be defective or very weak.
In most cases lamp failure threshold adjustment is not
required, in which case the user should press
[MODE]
to
exit this display.
3) Lamp Drive:
For 10.6 eV lamps this value is normally
175 and for 9.8 and 11.7 eV lamps it is set at 200. The
value can be increased up to 225 if necessary, but should
be returned to the standard values when a new lamp is
installed to reduce the power consumption and wear on the
lamp and electronics.
