Philips 20PHH4109/88 Service Manual page 20

EN 20 4. TPN14.1E LA
4.2 Service Positions
For easy servicing of a TV set, the set should be put face down
on a soft flat surface, foam buffers or other specific workshop
tools. Ensure that a stable situation is created to perform
measurements and alignments. When using foam bars take
care that these always support the cabinet and never only the
display. Caution: Failure to follow these guidelines can
seriously damage the display!
Ensure that ESD safe measures are taken.
4.3 Assembly/Panel Removal ( for 20" & 22" & 24")
Instructions below apply to the 22PFH4109/88, but will be
similar for 20" & 22" & 24" models.
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4.3.2 Small Signal Board (SSB)
Refer to Figure 4-7 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. Release the clips from the LVDS [1] connector that connect
with the SSB.
Caution: be careful, as these are very fragile connectors!
2. Unplug all other connectors [2].
3. Remove all the fixation screws [3] from the SSB.
4. The SSB can now be shifted from side connector cover,
then lifted and taken out of the I/O bracket.Refer to
Figure 4-7 for details.
2014-Feb-21
Mechanical Instructions
4.3.1
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Figure 4-6 Rear cover removal
back to
div. table
Rear Cover
Refer to Figure 4-6 for details.
Warning: Disconnect the mains power cord before removing
the rear cover.
1. Remove fixation screws [1] that secure the base assy, pull
out the base assy from the set. Then remove the fixation
screws [2] that secure the rear cover. Refer to
for details.
2. At the indicated areas [3] the cover is secured by clips. Be
very careful with releasing those.
3. Gently lift the rear cover from the TV. Make sure that wires
and cables are not damaged while lifting the rear cover
from the set.
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Figure 4-6
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