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

D BL

: INTAKE FA

800

: P

WER

PPL

PTI

AL EN

1A: PR

N LE

LAMP H

OUS

PEAKER B

1: EXHA

T FA

BALLA

T P

WER

PPL

2. LOCATION OF PC BOARD

U00

1: MAIN P

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

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

[Left Side]

Remove 3 screws (M3 x 6).

[Right Side]

Remove 6 screws (M3 x 6).

[Front]

Remove front cover.

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

[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

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]

Remove lens shift dial.

3-3. Main PC Board (Continued)

1-6

Step Figure Explanation

Remove metal plate.

Remove 2 screws (M3 x 6).

Screw : type [M-1]

Remove 2 screws (M3 x 8). Screw : t

pe [M-10

]

3-4. Optical Engine

1-7

Step Figure Explanation

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)......B Screw : type [M-2]

3-4. Optical Engine (Continued)

1-8

Step Figure Explanation

Remove lamp housing.

Remove 3 screws (M3 x 15).

Screw : type [M-4]

3-4. Optical Engine (Continued)

1-9

Step Figure Explanation

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

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