Toshiba TLP-250 User manual

SERVICE MANUAL
FILE NO. 330-200103
SUPPLEMENT
3LCD DATA PROJECTOR
TLP-250/251/250C/251C
TLP-550/551/550C/551C

SECTION 1
PART REPLACEMENT AND
ADJUSTMENT PROCEDURES
1. LOCATION OF MAIN PARTS
L
C
D BL
OC
K
Z1
00
: INTAKE FA
N
P
800
: P
O
WER
SU
PPL
Y
E2
00
:
O
PTI
C
AL EN
G
IN
E
E2
0
1A: PR
OJ
E
C
TI
O
N LE
N
LAMP H
OUS
IN
G
S
PEAKER B
L
Z1
0
1: EXHA
US
T FA
N
:
BALLA
S
T P
O
WER
SU
PPL
Y
2. LOCATION OF PC BOARD
U00
1: MAIN P
C
B
O
AR
D
U002: SENSOR PC BOARD
U002:
1-1
U003: SWITCH PC BOARD

3. REPLACEMENT OF MECHANICAL PARTS
3-1. Lamp Assembly
1-2
CAUTIONS BEFORE SERVICING
Electronic parts are susceptible to static electricity and may easily be damaged, so do not forget to take
proper grounding treatment as required.
Many screws are used inside the unit. To prevent missing, dropping, etc. of the screws, always use a
magnetized screwdriver in servicing. Several kinds of screws are used and some of them need special
cautions. That is, take care of the tapping screws securing molded parts and fine pitch screws used to
secure metal parts. If they are used improperly, the screw holes will be easily damaged and the parts can
not be fixed.
Step Figure Explanation
1
2
3
4
Loosen 2 screws (M3 x 8).
These screws are retained with split washers.
Remove the lamp cover.
Loosen 2 screws that secure the lamp module (M3 x 8).
These screws are retained with split washers.
Lift the lamp module and slide out from the projector.

3-2.Top Cover
1-3
Step Figure Explanation
1
2
3
4
5
[Left Side]
Remove 3 screws (M3 x 6).
[Right Side]
Remove 6 screws (M3 x 6).
[Front]
Remove front cover.
Screw : type [M-1]
Screw : type [M-1]
Remove 1 screw (M3 x 6).
Screw : type [M-1]
Slide front cover to the right.

3-2.Top Cover (Continued)
1-4
Step Figure Explanation
6
7
[Rear]
Remove 1 screws (M2 x 6). Screw : type [M-1]
Top cover can be removed by lifting left edge.

3-3. Main PC Board
1-5
Step Figure Explanation
1
2
3
Remove all cables and connectors.
Remove 5 screws (M3 x 6).
Remove 1 screws (M3 x 6).
[Note]
The screw here is also fixing the grand wire.
Screw : type [M-1]
Screw : type [M-1]
Remove lens shift dial.
4

3-3. Main PC Board (Continued)
1-6
Step Figure Explanation
5
6
Remove metal plate.
Remove 2 screws (M3 x 6).
Screw : type [M-1]
Remove 2 screws (M3 x 8). Screw : t
y
pe [M-10
]

3-4. Optical Engine
1-7
Step Figure Explanation
1
2
3
4
5
Remove 1 screw (M3 x 6).......A
Remove Thermal switch.
Remove metal plate.
Screw : type [M-1]
Remove 2 screws (3 x 8) Screw : type [M-2]
Remove 2 screws (3 x 8) Screw : type [M-2]
Remove 2 screws (3 x 8)......B Screw : type [M-2]
AB
B

3-4. Optical Engine (Continued)
1-8
Step Figure Explanation
6
7
7a
7b
Remove lamp housing.
Remove 3 screws (M3 x 15).
Screw : type [M-4]
a
b

3-4. Optical Engine (Continued)
1-9
Step Figure Explanation
8
9
Remove 3 screws (M3 x 8) .
Separate the main frame and sub frame from the engine
block.
Screw : type [M-2]
Sub frame
Sub fram
Main frame