Philips LC4.6U AA Service Manual page 7

4.3 Assy/Panel Removal
4.3.1 Rear Cover
Warning: Disconnect the mains power cord before you remove
the rear cover.
1. Remove the screws, which secure the rear cover. The
screws are located at the top, bottom, left and right sides;
next to the Side/IO and Rear connections. There are also
three deeper located screws next to the stands.
2. Lift the rear cover from the cabinet. Make sure that wires
and flat foils are not damaged during cover removal.
4.3.2 Side I/O Panel
1. Disconnect the cable from the panel.
2. To replace the complete bracket, remove the two fixation
screws on either side of the panel.
3. Release the two fixation clamps and lift the panel out of the
bracket.
4.3.3 LED/Switch Panel
1. Remove the two fixation screws.
2. Disconnect the cable from the rear of the panel.
4.3.4 Top Control Panel
1. Remove the two fixation screws.
2. Release the two fixation clamps and lift the panel out of the
bracket.
4.3.5 Small Signal Panel (SSB) and 3D Comb Filter
(PDP)
19 1
18 2
(PDP)
3
Figure 4-4 SSB Connector plate
Figure 4-5 Shielding of the SSB
1. Remove the middle fixation screw (1) from the bottom side
of the connector plate (as this holds the SSB bracket).
Note: Sometimes it is easier to loosen the complete
connector plate and remove it together with the SSB.
2. Remove all connector fixation screws (2) from the front
side of the connector plate.
2
1 5
10
6
11 15
1
5
4
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Mechanical Instructions
3. Remove the two female screw locks (3) of the VGA
connector.
4. Release the plastic cable clips (4) on the shielding and
disconnect all cables from the SSB.
Note: Be careful with the fragile LVDS connector on the
SSB.
5. Now, completely remove the SSB (together with all the
shieldings) from the set.
6. Once the SSB is out, remove the fixation screws (5) from
the shielding.
7. Remove the shielding, it hinges at the left side (acc. photo).
8. Remove the fixation screws that hold the panel, and take
out the panel. On the rear side of the SSB, the 3D Comb
Filter is mounted with plastic clips.
Notes:
• Pay special attention to the EMC foam on the SSB
shielding. These must be replaced in their initial positions
during set re-assembly.
• Insulate the tuner pins, so they cannot touch the shielding
(see also figure "SDM Service jumper" in Chapter 5).
4.3.6 LCD Supply Panel
1. Disconnect all cables from the panel.
2. Remove the fixation screws and take out the panel.
4.3.7 LCD Standby/Audio Panel
1. Disconnect all cables from the panel.
2. Remove the fixation screws and take out the panel.
4.3.8 LCD Panel
4
(LCD)
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1. Remove the T10 screws (1) from the mounting frame.
2. Remove all mounting LCD panel T20 screws (2).
3. Important: Unplug the LVDS connector (3) at the LCD
panel. Be careful, as this is a very fragile connector!
4. Unplug the following connectors (4).
–
–
–
–
5. Lift the metal frame (together with all CBAs) from the LCD
panel.
6. After removal of the frame, you can lift the LCD display
from the set.
LC4.6U AA
1
2
4
3
2
1
Figure 4-6 LCD panel disassembly
LCD back light (disconnect at the LCD side)
Loudspeaker (easiest to disconnect at the speaker and
to release the cable holders a little.
Top Control cable (disconnect at SSB side).
Cable between LED/Switch panel and SSB.
4. EN 7
4
4
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