ID5000, XR5000 Level 1 Service Manual
Issue 4, 8/2017 35
Replacing the LCD (indicators with serial number >510,000 only)
New, improved LCD – Changes to product which you should be aware of
The LCD is different on indicators manufactured after June 2017 (indicators with serial number >510,000). For indicators with
a serial number of <510,000, no spare LCD is available and it will be necessary to replace the entire indicator. See
Changes to
product
on page 7.
LCD handling and storage precautions
The LCD is made of glass. Do not subject it to mechanical shock.
If the LCD is damaged and the liquid crystal substance inside it leaks out, be sure not to get any in your mouth. If the substance
comes into contact with your skin or clothes, promptly wash it off using soap and water.
Do not apply excessive force to the display surface or adjoining areas, as this may cause a variance in the colour tone.
If the display surface is contaminated, breathe on the surface and gently wipe it with a soft dry cloth. If still not completely
clear, moisten the cloth with IPA.
Do not use water, ketone or any aromatic solvent as they will damage the polariser
.
Do not attempt to disassemble the LCD.
When storing LCD modules, avoid exposure to direct sunlight, light of fluorescent lamps or harmful gases. The recommended
storage temperature range is 0 to 40 °C (32 to 104 °F) and the relative humidity should be less than 80%.
1 Remove the rubber corner bumpers (see page 23).
2 Remove the indicator case back (see page 25).
3 Remove the cradle, complete with the PCA:
a Disconnect the six FPCs (see
Figure 16: PCA connections
). For the LCD FPC, pull up the black locking bar on the FPC
connector before removing the FPC. See
Using flexible printed circuit (FPC) connectors
on page 22.
b Unscrew the 10 screws securing the PCA and cradle to the case (see
Figure 19
for position of the screws).
c Lift the cradle with PCA out of the front case, taking care to pull the LCD FPC through the gap between the cradle and
the PCA. Place the cradle assembly to one side.
cradle assembly
4 Lay a soft cloth on the work surface beneath the case front to prevent damage to the LCD. Turn the case front over so that
the overlay is uppermost. Use a flat-bladed craft knife to separate the LCD from the case front. Run the knife around the
edges in order to break the sticky seal provided by the gasket.
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