Service Manuals, User Guides, Schematic Diagrams or docs for : Samsung Projector SP-A400B Disassembly & Reassembly

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3. Disassembly and Assembly

3. Disassembly and Assembly
This section describes the disassembly and reassembly sequences for this projector.
Warning: As this projector has parts that are sensitive to static electricity, be careful when handling them.

3-1. Disassembly
Caution: 1. Turn the projector off before beginning the disassembly.
2. Carefully disassemble the projector as described in the following procedures.
3. When disassembling the projector, do not use any metal tools except for the provided jig.

Sequence Item Description Photo Screws

Remove the projection lens cover
at the front of the projector by
pressing the left and right hooks.
1
Caution : Make sure to proceed
with the disassembly after the power
is disconnected.

Remove the two (2) screws at the
2 left and right of the back of the
product

Removing
the Cover Top Lift the hook at the center of the
back of the product.
Loosen the hooks at the sides of
3 the product cover (they can be
loosened easier by pressing the
left and right sides) and lift the
cover.

Be careful of damage to the
projection lens. Loosen the hook
at the front of the cover and lift the
4 cover.

Caution :Be careful of damage to
the touchpad cable.

3-1
3. Disassembly and Assembly

Sequence Item Description Photo Screws

Remove the two (2) screws at the
top left and right of the rear panel
5 of the projector.
Remove the screw (1) at the front
of the rear panel of the projector.

Removing
the rear panel

Remove the connection cable for
SMPS from the inlet attached to
6 the rear panel of the projector and
remove the screw (1) for the GND
connection.

Remove the rear panel, and then
7 remove the two (2) screws holding
the inlet in place.

Removing
the inlet

Remove the inlet as shown in the
8
photo.

3-2
3. Disassembly and Assembly

Sequence Item Description Photo Screws

Remove the three (3) screws
9
holding the SMPS in place.

Removing Remove the connection cable
the SMPS connecting the SMPS and the Main
board.

Remove the connection cable
10 connecting the Light Effect and the

Main board.

Remove the connection cable
connecting the SMPS and the
Ballast.

3-3
3. Disassembly and Assembly

Sequence Item Description Photo Screws

Remove the two (2) screws at the
11 left and right of the Light Effect
holder, and then lift the Light Effect

Removing
the Light Effect

Remove the two (2) screws holding
12 the Light Effect in place, and then
remove the Light Effect.

3-4
3. Disassembly and Assembly

Sequence Item Description Photo Screws

Remove the two (2) screws holding
the SMPS and its holder in place.

(While assembling the SMPS and
13
its holder, only fasten the two (2)
screws shown in the right photo.
The other two (2) screws are used
when assembling the Light Effect.)

Removing
Lift the SMPS after removing the
the SMPS
screws to remove the SMPS and
its holder.

When checking an SMPS fuse
short, check the fuse placed at the
position shown in the photo.
14

(Refer to the `Fuse Check' silk)

When checking the SMPS fuse,
disassembling the SMPS is not
required as the fuse is visible by Fuse
removing only the top cover..

3-5
3. Disassembly and Assembly

Sequence Item Description Photo Screws
Remove the connection cable
connected to the Main board and
the five (5) connection cables
connected to the five (5) parts
(three (3) cables for the fan
connection, one (1) cable for the
thermostat connection, and one (1)
cable for the cover detection switch
connection).
15
Slowly pull the Main board forwards
and then remove the DMD board.

(While assembling the Main board
and the DMD board, insert the
Main board so that its connectors
are connected correctly. When the
connectors are connected correctly,
it will click into place.)

Remove the connection cables at
the left of the Main board: The
IR board connection cable, the
16 LED board connection cable,
and the Ballast connection cable.

Removing the Then remove the Main board
Main board completely.

Remove the connection cables
at the left of the Main board:
The Keypad connection cable,
the FAN x3, Light Effect, Cover

detection switch, and Thermostat
17
connection cables, the SMPS
connection cable.
Remove the two (2) screws on
the shield case of the Main board
and then remove the top shield.
Remove the two (2) hexagonal
screws holding the RGB jack in
place at the back of the bottom
shield.

Remove the five (5) screws holding
18 the Main board and the bottom
shield in place.

Push forward from the signal jack
at the back of the Main board and
separate the Main board and the
shield case.

3-6
3. Disassembly and Assembly

Sequence Item Description Photo Screws

Remove the two (2) screws of the
fan holder (one (1) screw at the
19
front and one (1) screw at the back
of the fan) above the Ballast.

Removing the
fan

Lift and remove the fan and its
20
holder..

Remove the two (2) screws holding
21 the fan to the holder and remove
the fan.

3-7
3. Disassembly and Assembly

Sequence Item Description Photo Screws

Remove the connection cable
connected to the Ballast and lamp.
Removing the
22
Ballast Remove the three (3) screws
holding the Ballast to the bottom
cover and remove the Ballast.

Remove the three (3) screws
Removing the holding the fan in place, and then
23
fan
lift and remove the fan.

Remove the screw (1) holding the
Removing the
24 fan and thermostat in place and
Thermostat
remove the thermostat.

3-8
3. Disassembly and Assembly

Sequence Item Description Photo Screws

Remove the screw (1) holding the
LED board holder in place, and then
25 push the holder in the direction of
the arrow as shown in the photo,
and remove it from the engine.

Removing the
LED board

Remove the LED board from the
26
hook of its holder.

Remove the screw (1) holding the
Front IR board in place near the
projection lens.
Removing the
27
Front IR board Since this screw is not easily located
and using a screwdriver is not easy,
be careful of damage to the LED
board holder or the projection lens

Removing the Remove the Front IR board from the
28
Front IR board hook of its holder.

3-9
3. Disassembly and Assembly

Sequence Item Description Photo Screws

Removing the Remove the eight (8) screws holding
29
engine the engine to the bottom cover.

Removing the
Remove the screw (1) holding the
30 Cover detect
Cover detection switch in place.
switch

3-10
3. Disassembly and Assembly

Sequence Item Description Photo Screws

Remove the two (2) screws at the
top of the engine, and then lift and
remove the structure covering the
engine.
31
Remove the two (2) screws holding
the Color wheel assy in place, and
then lift and remove the Color wheel
Removing the assy.
Color wheel
assy

Take care that fingerprints or
foreign material do not stain the
Color wheel.

32 While assembling the Color wheel
assy, make sure to assemble it
so that the appearance of the
connection cables is exactly as
shown in the photo.

Removing the Remove the two (2) screws holding
33
Sensor board the Sensor board in place.

3-11
3. Disassembly and Assembly

Sequence Item Description Photo Screws

Remove the four (4) screws
holding the DMD board holder to
the engine.
34
Be careful that foreign material
does not stain the inside of the
engine.

Removing the
DMD board

Remove the Top shield case.

35 Remove the four (4) screws holding
the DMD board to the Bottom shield
case.

Lift and remove the DMD board
and DMD panel from the structure
hold

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