Sharp LC-46LE631E (serv.man2) Service Manual ▷ View online
25
LC-32LE631
LC-40LE631
LC-46LE631
LC-40LE631
LC-46LE631
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.
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.
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.
flat coils are not damaged while lifting the rear cover from
the set.
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.
the rear cover.
Note: it is not necessary to remove the stand while removing
the rear cover.
Refer to
Figure 4-4
and
Figure 4-5
for details.
Figure 4-4 Bottom catches 40” and 46” sets -1-
2 conductive tapes (40 mm)
2 x 11 mm clamp
1 x 17 mm clamp
5 tapes (80 mm)
3 tapes (150 mm)
1 ferrite core
Figure 4-2 Cable dressing LC-40/46LE631 series
4.3 Assy/Panel Removal Sundance Styling
(LC-xxLE631E series)
(LC-xxLE631E series)
The instructions in this section also apply to the LC-
xxLE631E series.
xxLE631E series.
For the 40” and 46” sets, additional instructions (rear cover
removal) apply. Refer to subsection
removal) apply. Refer to subsection
Additional instructions
for 40/46LE631E
and
Removing of Major Parts.
The instructions apply to the 32LE631E.
19100_04 8_110216.ep s
110315
1
1
Additional instructions for 40/46LE631E sets have a dedi-
cated method to open the bottom catches when removing
the rear cover.
cated method to open the bottom catches when removing
the rear cover.
Mechanical Instructions (continued)
26
LC-32LE631
LC-40LE631
LC-46LE631
LC-40LE631
LC-46LE631
Figure 4-7 Main Power Supply
1.
Unplug all connectors [1].
2.
Remove the fixation screws [2].
3.
Take the board out.
When defective, replace the whole unit.
4.3.5
Small Signal Board (SSB)
Refer to
Figure 4-8
for details.
Figure 4-8 SSB
1.
Unplug all connectors [1].
2.
Remove the fixation screws [2].
3.
Take the board out.
When remounting, ensure that the side shielding [3] is
positioned correctly.
positioned correctly.
19100_050_110216.eps
110216
1
1
1
2
2
2
2
19100_051_110216.eps
110216
1
2
2
2
2
2
2
1
Figure 4-6 Mains switch
The mains switch is mounted on a plastic subframe and can be
removed without removing the subframe.
1.
removed without removing the subframe.
1.
Use a screwdriver and push the switch out of its casing [1].
2.
Unplug the connectors [2].
When defective, replace the whole unit.
4.3.4
Main Power Supply
Refer to
Figure 4-7
for details.
It is advised to lay the set with front facing down before
executing this operation.
1.
executing this operation.
1.
Remove all screws from the rear cover.
2.
Use a round rod (diameter 2 mm) and insert it in one of the
holes [1].
holes [1].
3.
Push the catch located inside the rear cover away by
inserting the rod [2] through the hole and lifting the rear
cover at the same time.
inserting the rod [2] through the hole and lifting the rear
cover at the same time.
4.
Repeat the same procedure on the other hole.
4.3.2
Speakers
Tweeters
Each tweeter unit is mounted with one screw.
When defective, replace the whole unit.
Each tweeter unit is mounted with one screw.
When defective, replace the whole unit.
Subwoofer
The central subwoofer is located in the centre of the set and is
secured by two bosses.
When defective, replace the whole unit.
The central subwoofer is located in the centre of the set and is
secured by two bosses.
When defective, replace the whole unit.
4.3.3
Mains Switch
Refer to
Figure 4-6
for details.
Figure 4-5 Bottom catches 40” and 46” sets -2-
19100_049_110216.ep s
110315
2
19100_047_110216.eps
110315
1
Mechanical Instructions (continued)
27
LC-32LE631
LC-40LE631
LC-46LE631
LC-40LE631
LC-46LE631
4.3.7 Removing of major Parts 32”
[ ]
1. Remove the 4 lock screws
and detach the Stand.
2. Remove the 4 screw hole plugs .
1
4
3
5
Stand
6
3
3. Remove the 4 lock screws
, 1 lock screw , 1 lock screw , 6 lock screws and detach the Rear Cabinet.
6
2
Rear
Cabinet
Cabinet
4
5
1
Front Cabinet
2
3
28
LC-32LE631
LC-40LE631
LC-46LE631
LC-40LE631
LC-46LE631
4.3.7 Removing of major Parts 32” (Continued)
4. Disconnect all the connectors from all the PWBs.
SPEAKER -R
(TWEETER)
SPEAKER -L
(TWEETER)
[1316]
[1M95]
[1D38]
[1735]
[1735]
[1G50]
[1G51]
[1M19]
TO DISPLAY
SUPPLY
[1M95]
SPEAKER
(SUBWOOFER)
[1308]
MAIN
SWITCH
INLET
MAIN UNIT
POWER UNIT
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