Philips MG8 Service Manual page 12

EN 12 4. Q522.2E LA
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
Required for sets
1
42"
Figure 4-11 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 ME8 Styling
4.3.1 Rear Cover
Warning: Disconnect the mains power cord before you remove
the rear cover.
Note: it is not necessary to remove the stand while removing
the rear cover.
1. Remove all screws of the rear cover.
2. Lift the rear 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
Remove the screws [1] and lift the whole unit from the rear
cover. Take the speakers out together with their casing.
When defective, replace the whole unit.
Mechanical Instructions
1
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4.3.3 IR & LED Board
Refer to next figure for details.
1. Unplug connectors [1].
2. Use a flat screw driver to release the clip by pushing in the
indicated direction [2].
3. Lift the board and take it out.
When defective, replace the whole unit.
1
2
Figure 4-12 IR & LED Board
4.3.4 Key Board
1. Unplug the key board connector from the IR & LED board.
2. Remove the screws [1].
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 all connectors.
2. Remove the fixation screws.
3. Take the board out.
When defective, replace the whole unit.
4.3.6 Small Signal Board (SSB)
Caution: It is mandatory to remount screws at their original
position during re-assembly. Failure to do so may result in
damaging the SSB.
1. Unplug the LVDS connector.
Caution: be careful, as this is a very fragile connector!
2. Unplug all other connectors.
3. Remove all screws that hold the board.
4. The SSB can now be taken out of the set, together with the
front shield and the side cover.
5. To remove the shield, remove the screws and lift it of.
6. To remove the side cover, remove the screws and pull the
cover sidewards from the SSB.
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