Mechanical Instructions
4.
4.2
Service Positions
For easy servicing of this set, there are a few possibilities
created:
•
The buffers from the packaging.
•
Foam bars (created for Service).
4.2.1
Foam Bars
Figure 4-4 Foam bars
The foam bars (order code 3122 785 90580 for two pieces) can
be used for all types and sizes of Flat TVs. See
for
details. Sets with a display of 42" and larger, require
four
foam
bars [1]. Ensure that the foam bars are always supporting the
cabinet and
never
only the display.
Caution:
Failure to follow these guidelines can seriously
damage the display!
By laying the TV face down on the (ESD protective) foam bars,
a stable situation is created to perform measurements and
alignments. By placing a mirror under the TV, the screen can
be monitored.
4.3
Assy/Panel Removal TPM3.1E LA Styling
4.3.1
Rear Cover
Warning:
Disconnect the mains power cord before removing
the rear cover.
1.
Remove the fixation screws that secure the rear cover.
2.
Lift the rear cover from the TV. Make sure that wires and
flat foils are not damaged while lifting the rear cover from
the set.
4.3.2
Small Signal Board (SSB)
Caution:
it is mandatory to remount all different screws at their
original position during re-assembly. Failure to do so may result
in damaging the SSB.
1.
Unplug LVDS connector.
Caution:
be careful, as these are very fragile connectors!
2.
Unplug all other connectors.
3.
Remove all fixation the screws.
4.
The SSB can now be taken out of the set.
4.3.3
Power Board
1.
Unplug the power board connectors.
2.
Remove the screws.
3.
Lift the unit and take it out of the set.
When defective, replace the whole unit.
4.3.4
Speakers
1.
Unplug the speaker cable connector from the SSB.
2.
Take the speakers out together with their casing.
When defective, replace the whole unit.
4.3.5
Key Board
1.
Release the clip at the top and take whole the unit out.
2.
Unplug the connector.
3.
Remove the fixation screws and take the panel from the
unit.
When defective, replace the whole unit.
4.3.6
IR Board
1.
Remove the speaker that covers the IR board.
2.
Unplug the IR board connector.
3.
Remove the screw closest to the connector.
4.
Lift the IR board and take it out of the set.
When defective, replace the whole board.
4.3.7
Display Panel
1.
Unplug the backlight and LVDS connectors.
2.
Take the speakers out of their fixation position.
3.
Release the key board unit from the bezel.
4.
Release the IR board connector.
5.
Remove the four fixation screws that fix the subframe to the
front bezel.
6.
Lift the complete subframe with boards and speakers from
the front bezel.
7.
Remove the four fixation screws from the side of the
subframe that fix the LCD panel to the subframe.
8.
Lift the complete subframe from the LCD panel.
When defective, replace the whole unit.
4.4
Set Re-assembly
To re-assemble the whole set, execute all processes in reverse
order.
Notes:
•
While re-assembling, make sure that all cables are placed
and connected in their original position. See
.
•
Pay special attention not to damage the EMC foams on the
SSB shields. Ensure that EMC foams are mounted
correctly.
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