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Figure 33
Figure 34
Installing the Liquid Crystal
Figure 35
Figure 36
Display (LCD)
Caution:
The display PCB/LCD assembly contains the LCD which is
easily scratched.
Be sure to handle this assembly with care.
4,
Place the display PCB/LCD assembly so that the LCD is facing upwards.
Ensure that the two solder connections "ELP1" and "ELP2" on the
display PCB are positioned to your lower ieft (see Figure 33).
Note:
Before further disassembly, note that the pink zebra strips are
"sandwiched" between the LCD and the display PCB.
Also note
that the backlight (the light green panel) is lying below the LCD,
bordered by the zebra retainers and soldered into ELP1
and
ELP2.
5.
Using a No. 1 Phillips head screwdriver, remove the nine (9)
2-56x5/16" Phillips pan-head screws, 2-56 hex nuts, and #2 nylon
washers securing the zebra retainer to the display PCB.
6.
Gently pull the zebra retainers away from the LCD as illustrated in Figure
34. The zebra strips may "stick" to the LCD, so you may have to pull at
the retainers with increasing force. Be careful to note that the backlight
panel is still soldered to ELP1 and ELP2.
Remove the LCD, and zebra
strips from the zebra retainer.
Equipment Required
s
No. 2 Phillips head screwdriver
*
No. 1 Phillips head screwdriver
‧
Needle nose pliers
Caution:
The Bard CritiCore Monitor main-and display PCB's contain static
sensitive electronic devices.
Do not-attempt to repair any internal
components without proper ESD. (Electro-Static Discharge)
handling equipment.
Failure to properly ground both your body
and your work station could result. in.damage.to the Monitor.
Procedure
Note:
This procedure was written for right-handed individuals. The
converse of all highlighted position identifiers will work for left-
handed individuals.
1.
Inspect the conductor pads of the display PCB.
Ensure that they are free
of any contamination (oil, dirt, etc.) You can clean the pads by gently
rubbing the pads with a non-abrasive cloth dampened with 70% isopropyl
alcohol.
Ensure that your hands are free of oil and dirt before further
assembly.
:
2.
Inspect the LCD pads and zebra strips. Ensure that they are free of any
contamination (oil, dirt, etc.). You can clean these components by gently
rubbing the pads and retainers with a non-abrasive-cloth dampened with
70% isopropyl alcohol.
E
3.
Place the Display PCB with the conductor pads face down
(on a clean
soft, surface), so that the display cable is facing you. (see Figure 35).
4.
Position the LCD in your left hand so you hold the LCD along it's pad
connection edges, with the back (papered side) facing up (see Figure
36).
Bard CritiCore Monitor Service Manual
Page 31
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