Philips LC7.2E Service Manual page 11

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).
• Aluminium service stands (created for Service).
Note: the aluminium service stands can only be used when the
set is equipped with so-called "mushrooms". Otherwise use the
original stand that comes with the set.
4.2.1 Foam Bars
Required for sets
1
42"
Figure 4-6 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.
4.2.2 Aluminium Stands
Figure 4-7 Aluminium stands (drawing of MkI)
The new MkII aluminium stands (not on drawing) with order
code 3122 785 90690, can also be used to do measurements,
alignments, and duration tests. The stands can be
(dis)mounted quick and easy by means of sliding them in/out
the "mushrooms". The new stands are backwards compatible
with the earlier models.
Important: For (older) FTV sets without these "mushrooms", it
is obligatory to use the provided screws, otherwise it is possible
to damage the monitor inside!
Mechanical Instructions
1
E_06532_018.eps
171106
E_06532_019.eps
170504
LC7.2E LA
4.3 Assy/Panel Removal
4.3.1 Rear Cover
Warning: Disconnect the mains power cord before you remove
the rear cover.
1. Place the TV set upside down on a table top, using the
foam bars (see part "Service Position").
2. Remove rear cover screws and the stand (if mounted).
3. Remove rear cover.
4.3.2 Keyboard Control Panel
1. Refer to next figure (is taken from the 32" model, but the
method is comparable for the other screen sizes).
2. Remove the T10 parker screws [1].
3. Unplug connector [2].
4. Remove the unit.
5. Release clips [3] and remove the board.
When defective, replace the whole unit.
1
3
2
1
Figure 4-8 Keyboard control panel
4.3.3 Side I/O Panel
1. Refer to next figure (is taken from the 32" model, but the
method is comparable for the other screen sizes).
2. Unplug connector [a].
3. Remove screws [b] and remove the complete module. One
of the screws is T10 tapping, the other one is T10 parker.
4. Remove T10 parker screw [c]. Refer to next figure.
5. Push catch [d] (located at the underside of the bracket) and
slide the unit to the right from its bracket [e]. See fig. "Side
I/O panel 2".
6. To remove the PWB from its bracket, you have to lift the
catch [f] located on top of the head phone connector. At the
same time, slide the PWB out of its bracket [g]. See fig.
"Side I/O panel 3".
When defective, replace the whole unit.
4. EN 11
G_16850_007.eps
310707