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Caution:
The display PCB/LCD assembly contains the LCD which is easily
scratched.
Be sure to handle this assembly with care.
4.
Set the display PCB/LCD assembly so that the LCD display faces up ano
the temperature jack is in the lower left hand corner.
Remove and discard
the two o-rings on the temperature jack connector mount.
5.
The temperature jack has three pins soldered to the display PCB (see
Figure 25). To remove the temperature jack, desolder all three pins
completely. The display PCB has been conformal coated, so the
connector may "stick" slightly when removing.
Figure 25
installing the Temperature
Equipment Required
Jack
+
.No. 1 Phillips screwdriver
+
No. 2 Phillips screwdriver
+
Needle nose pliers
«
Desoldering tools
s
70% isopropyl alcohol
+
PCB conformal coating material
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.
4
Caution:
The Bard CritiCore Monitor main and display PCB's contain static
Procedure
1.
Solder the replacement temperature jack as supplied by Bard. Be sure to
position the connector edge with the edge of the PCB and within the silk-
screen lines on the display PCB (see Figure 26).
2.
Using a non abrasive cloth dampened with 70% Isopropyl Alcohol, be sure
to remove any remaining solder flux. Using a brush, apply a light layer of
conformal coating material onto the leads of the connector.. Allow coating
sufficient time to dry as called out by the coating manufacturer before
further assembly.
`
Figure 26
Note:
Conformal coating materials protect the leads of the electronic
components from corrosion. Coating the leads of the connector
will prolong the life of the component.
3.
Replace the two o-rings onto the jack connector mount.
install the display PCB/LCD assembly to the bezel top assuring alignment
of temperature jack, by installing the four (4) 4-40x1/4" Phillips pan-head
screws.
5.
Reconnect the membrane switch mylar connector.to the display PCB (see
Figure 27).
6.
Install the bezel enclosure per the Installing the Bezel Enclosure procedure
on page 21.
、
7.
Perform the Testing the Temperature Jack Connector procedure (on page
27) to verify proper function.
|
8.
Perform the entire Functional Checkout procedure to ensure that all
Figure 27
display and general Monitor functions are working properly.
Page.28
Bard CritiCore Monitor Service Manual
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