Siemens SIMATIC PC BI10 Technical Description page 30

Replacement in
The backlight tube for the SVGA TFT display is replaced as follows:
the SVGA TFT
Display
Figure 1-21
SIMATIC PC BI10/FI10/FI15, Technical Description
C79000-G7076-C773-03
Compliance with the ESD guidelines in the Manual, Section 1.1 is
essential.
Remove the display from the front plate as described in Section 1.4.3.
Lay the display face up on a dust-free surface.
The backlight tube is accessible from the side (on the left as viewed from
the rear).
Align the 2 metal lugs at the top edge of the display (see Figure 1-21).
Remove the 4 screws as shown in Figure 1-22 (2 left, 2 right).
Disassemble the rear panel of the display as shown in Figure 1-23.
Lift the reflector foil at the top edge of the display and remove the
backlight tube carefully.
Insert the new backlight tube and cover it with the reflector foil.
The sealing rings (O rings) on the tube must be seated correctly and must
be covered with reflector foil.
The cables connected to the tube must be laid in the appropriate channels.
Reassemble the rear panel of the display (see Figure 1-23) and replace the
4 screws.
Turn the 2 metal lugs back to the original skewed position.
Check that the tube functions correctly.
Metal Lugs on the Edge of the Display
metal lugs
back plate
System Unit
1-25