QUANTUM
™
LX CONDENSER/VESSEL CONTROL PANEL
MAINTENANCE
090.560-M (MAY 2016)
Page 23
the dark screen. Using a beam type source
of good lighting, such as a ashlight, look
for any ghost type image. If it appears that
there is something on the screen but very
dark, the problem may be with the backlight
tube. On the LG Philips, NEC and Sharp dis-
plays this tube is eld replaceable. On the
Samsung display it is not available and the
display will have to be replaced. There may
be a sticker on the display mounting plate.
If there is, it will have a part number that
describes the type of display. If there is no
sticker, you must take the display apart to
identify the display manufacturer.
• Verify that both the display cable and the in-
verter cable are rmly seated. These cables
both originate from the same connector on
the Q4. It may be necessary to remove the
video cable from the back of the display and
re-seat it to be sure it is connected properly.
Note: This is a small connector and caution
should be observed so that it is not dam-
aged due to excessive force.
• Refer to the Operator Interface section and
check that the display, display cable, and
software versions are matched correctly.
BATTERY FUNCTION AND REPLACEMENT
The Q4 board utilizes a battery to maintain correct date
and time for the purpose of stamping warnings and shut-
downs with the date and time that they occurred. If the
date and time are not being maintained properly, it may
indicate that the battery is not functioning, and should be
replaced. The battery may be ordered through Baltimore
Parts (P/N 333Q0001786) or may be purchased at most
electronic shops (manufacturers P/N CR-2032).
The battery is partially covered by the communications
daughter board, and is located directly beneath the COM1
port (it may be necessary to unplug any connector that is
plugged into COM1 to fully access the battery).
To replace the battery, ensure that the Control Power
switch has been turned OFF.
Locate the Battery Release Clip on the following drawing:
Clip
Holder
Simply push the clip away from the battery, to release the
battery from the holder. Remove the battery, observing
the orientation. Take a new battery and place it into the
holder in the same orientation as the old battery (the side
with the writing must be facing out). Reinstall the COM1
plug (if removed), and return the Control Power switch
back to ON.
Once the Q4 has rebooted, the correct Date and Time
must be set.
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