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EN 12
4.
PB52.3HU LA
4.2
Service Positions
For easy servicing of this set, there are a few possibilities
created:
•
The buffers from the packaging (see figure "Rear cover").
•
Foam bars (created for Service).
4.2.1
Foam Bars
Required for sets
1
42"
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 figure "Foam
bars" 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, you can monitor
the screen.
4.3
Assy/Panel Removal
4.3.1
Rear Cover
Warning: Disconnect the mains power cord before you remove
the rear cover.
Note: it is necessary to remove the stand before removing the
rear cover.
1. Remove all screws from the back cover.
2. Lift the back cover from the TV. Make sure that wires and
flat coils are not damaged while lifting the rear cover from
the set.
4.3.2
Speakers
1. Remove the speaker connector on the SSB.
2. Remove the screws that hold the speaker and take the
speaker out.
When defective, replace the whole unit.
2009-Oct-09
Mechanical Instructions
1
10000_018_090121.eps
090121
4.3.3
IR & LED Board
1. Unplug the connectors that lead to the SSB and the Key
Board Control Panel.
2. Remove the screws.
3. Lift the board and take it out of the set.
When defective, replace the whole unit.
4.3.4
Key Board Control Panel
1. Unplug the key board connector from the IR & LED Board.
2. Release the clamp on the topside using a screwdriver.
3. Lift the unit and take it out of the set.
When defective, replace the whole unit.
4.3.5
Main Supply Panel
1. Unplug the connectors.
2. Remove the fixation screws.
3. Take the board out.
When defective, replace the whole unit.
4.3.6
Small Signal Board (SSB) and Tuner Bolt-on
Refer to next figures for details.
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 the LVDS connector [1].
Caution: be careful, as this is a very fragile connector! See
figure 4-5 SSB
cover.
2. Unplug the connectors [2].
3. Remove the screws [3] and remove the top shielding of the
SSB.
4. Remove the screws [4] that hold the subframe of the SSB.
The subframe can now be taken out of the set, together
with the SSB and tuner bolt-on.
5. To remove the tuner bolt-on, release the connectors [5]
and remove the cables.
6. Remove the screws [6] and lift the tuner bolt-on from the
SSB.
7. Remove the locknuts [7] and screws [8] from the SSB
connector plate and take the SSB from the subframe.
3
2
3
Figure 4-5 SSB cover
3
3
1
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