TOSHIBA TLPS30 - Service Manual Immediate Download

SERVICE MANUAL

FILE NO. 330-200301

3LCD DATA PROJECTOR

TLP-T50M

TLP-T50

TLP-S30

TLP-T50/TLP-T50M/TLP-S30

0-2

SAFETY PRECAUTION

WARNING: Service should not be attempted by anyone unfamiliar with the necessary precautions on this

projector. The following are the necessary precautions to be observed before servicing this chassis.

1. An isolation Transformer should be connected in the power line between the projector and the AC Iine

before any service is performed on the projector.

2. When replacing a chassis in the cabinet, always be certain that all the protective devices are put back in

place, such as; non-metallic control knobs, insulating covers, shields, isolation resistor-capacitor network

etc.

3. Before returning the set to the customer, always perform an AC Ieakage current check on the exposed

metallic parts of the cabinet, such as terminals, screwheads, metal overlays, control shafts etc. to be

sure the set is safe to operate without danger of electrical shock. Plug the AC Iine cord directly into an AC

outlet (do not use a line isolation transformer during this check). Use an AC voltmeter having 5000 ohm

per volt or more sensitivity in the following manner: Connect a1500 ohm 10W resistor, in parallel with a

0.15 uF, AC type capacitor, between a known good

earth ground (water pipe, conduit, etc.) and the

exposed metallic parts, one at a time. Measure

the AC voltage across the combination of 1500

ohm resistor and 0.15 uF capacitor. Reverse the

AC plug at the AC outlet and repeat AC voltage

measurements for each exposed metallic part.

Voltage measured must not exceed 5.25V(rms).

This corresponds to 3.5 mA(AC). Any value

exceeding this limit constitutes a potential shock

hazard and must be corrected immediately.

PRODUCT SAFETY NOTICE

Many electrical and mechanical parts in this chassis have special safety-related characteristics. These

characteristics are often passed unnoticed by a visual inspection and the protection afforded by them cannot

necessarily be obtained by using replacement components rated for higher voltage, wattage, etc.

Replacement parts which have these special safety characteristics are identified in this manual and its

supplements; electrical components having such features are identified by the international hazard symbols

on the schematic diagram and the parts list.

Before replacing any of these components, read the parts list in this manual carefully. The use of substitute

replacement parts which do not have the same safety characteristics as specified in the parts list may create

shock, fire or other hazards.

ULTRAVIOLET DANGER IN SERVICE MODE

Eye damage may result from directly viewing the light produced by the lamp used in this product. Always turn

off lamp before opening this cover. Ultraviolet radiation eye protection required during servicing.

AC VOLTMETER

0.15 uF

1500 ohm

10W

Place this probe on

each exposed

metallic part.

Good earth ground

such as a water

pipe, conduit, etc.

0-3

TABLE OF CONTENTS

SAFETY PRECAUTION ................................. 0-2

PRODUCT SAFETY NOTICE ........................ 0-2

ULTRAVIOLET DANGER IN SERVICE MODE .... 0-2

SECTION 1

PART REPLACEMENT AND ADJUSTMENT PROCEDURES

1. LOCATION OF MAIN PARTS ......................... 1-1

2. LOCATION OF PC BOARD ............................ 1-1

3. REPLACEMENT OF MECHANICAL PARTS .. 1-2

3-1. Lamp Assembly .................................... 1-2

3-2. Top Cover ............................................. 1-3

3-3. Main PC Board ..................................... 1-4

3-4. Optical Engine ...................................... 1-6

3-5. LCD Panel ............................................. 1-7

3-6. Polarized Plate on the Main Frame ........ 1-9

3-7. Polarized Plate on the Sub Frame ....... 1-11

3-8. MULTI-PBS (Polarizing Beam Splitter) 1-13

3-9. Intake Fan ........................................... 1-14

SECTION 2

SERVICING DIAGRAMS

3-10. Power Block ........................................ 1-16

3-11. Ballast Power Supply .......................... 1-18

3-12. Speaker Block .................................... 1-19

3-13. Screws for Mechanical Parts .............. 1-20

3-14. Screws for Optical Engine ................... 1-21

3-15. How to Disconnect FFC/

FPC Connector ................................... 1-22

4. OPTICAL ADJUSTMENT ............................ 1-23

4-1. Preparation ......................................... 1-23

4-2. Adjustment of Convergence

(ex. Red panel exchange) .................... 1-24

1. TROUBLESHOOTING .................................... 2-1

2. LED DISPLAY (Problems Shown on LED

Indicator Combination) ................................... 2-2

3. WIRING BLOCK DIAGRAM ........................... 2-3

4. CONNECTOR PIN ASSIGNMENT ................. 2-4

SECTION 3

PARTS LIST

1. EXPLODED VIEWS ....................................... 3-1

1-1. Packing Assembly ................................ 3-1

1-2. Accessories .......................................... 3-2

1-3. Chassis Assembly ................................ 3-3

1-4. PC Board and Power Unit Assembly ..... 3-4

1-5. Optical Engine Assembly ...................... 3-5

1-6. Label ..................................................... 3-6

2. PARTS LIST .................................................. 3-7

Bef

ore

Using

The lightning flash with arrowhead symbol, within

an equilateral triangle, is intended to alert the user

to the presence of uninsulated "dangerous voltage"

within the product's enclosure that may be of

sufficient magnitude to constitute a risk of electric

shock to persons.

The exclamation point within an equilateral triangle

is intended to alert the user to the presence of

important operating and maintenance (servicing)

instructions in the literature accompanying the

appliance.

WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE

THIS APPLIANCE TO RAIN OR MOISTURE. DANGEROUS HIGH VOLTAGES

ARE PRESENT INSIDE THE ENCLOSURE. DO NOT OPEN THE CABINET.

REFER SERVICING TO QUALIFIED PERSONNEL ONLY.

FCC Radio Frequency Interference Statement

Note:

This equipment has been tested and found to comply with the limits for a Class

A digital device, pursuant to part 15 of the FCC Rules. These limits are designed

to provide reasonable protection against harmful interference when the equipment

is operated in a commercial environment. This equipment generates, uses, and

can radiates radio frequency energy and, if not installed and used in accordance

with the instruction manual, may cause harmful interference to radio

communications. Operation of this equipment in a residential area is likely to

cause harmful interference in which case the user will be required to correct the

interference at his own expense.

WARNING: Changes or modifications made to this equipment, not expressly approved by

Toshiba, or parties authorized by Toshiba, could void the user's authority to operate

the equipment.

Notice:

This Class A digital apparatus complies with Canadian ICES-003. Cet appareil

numérique de la classe A est conforme à la norme NMB-003 du Canada.

WARNING: This is a Class A product. In a domestic environment this product may cause

radio interference in which case the user may be required to take adequate

measures.

CAUTION: PLEASE

READ

AND

OBSERVE

ALL WARNINGS

AND

INSTRUCTIONS GIVEN IN THIS OWNER'S MANUAL AND THOSE

MARKED ON THE UNIT. RETAIN THIS BOOKLET FOR FUTURE

REFERENCE.

This set has been designed and manufactured to assure personal safety. Improper use can

result in electric shock or fire hazard. The safeguards incorporated in this unit will protect you

if you observe the following procedures for installation, use and servicing. This unit is fully

transistorized and does not contain any parts that can be repaired by the user.

DO NOT REMOVE THE CABINET COVER, OR YOU MAY BE EXPOSED TO

DANGEROUS VOLTAGE. REFER SERVICING TO QUALIFIED SERVICE

PERSONNEL ONLY.

Read Owner's Manual

After unpacking this product, read

the owner's manual carefully, and

follow all the operating and other

instructions.

Power Sources

This product should be operated

only from the type of power source

indicated on the marking label.

If you are not sure of the type of

power supply to your home,

consult your product dealer or

local power company.

For products intended to operate

from battery power, or other

sources, refer to the operating

instructions.

Source of Light

Do not look into the lens while the

lamp is on. The strong light from

the lamp may cause damage to

your eyes or sight.

Ventilation

Openings in the cabinet are

provided for ventilation and to

ensure reliable operation of the

product and to protect it from

overheating, and these openings

must not be blocked or covered.

The openings should never be

blocked by placing the product on

a bed, sofa, rug or other similar

surface. This product should not

be placed in a built-in installation

such as a bookcase or rack unless

proper ventilation is provided or

the manufacturer's instructions

have been adhered to.

IMPORTANT SAFETY INSTRUCTIONS

SAFETY PRECAUTIONS

USA only

CANADA only

Bef

ore

Using

Heat

The product should be situated

away from heat sources such as

radiators, heat registers, stoves, or

other products (including

amplifiers) that produce heat.

Water and Moisture

Do not use this product near water.

- for example, near a bath tub,

wash bowl, kitchen sink, or laundry

tub; in a wet basement; or near a

swimming pool and the like.

Cleaning

Unplug this product from the wall

outlet before cleaning. Do not use

liquid cleaners or aerosol cleaners.

Use a soft cloth for cleaning.

Power-Cord Protection

Power-supply cords should be

routed so that they are not likely to

be walked on or pinched by items

placed upon or against them,

paying particular attention to cords

at plugs, convenience receptacles,

and the point where they exit from

the product.

Overloading

Do not overload wall outlets;

extension cords, or integral

convenience receptacles as this

can result in a risk of fire or

electric shock.

10. Lightning storms

For added protection for this

product during storm, or when it is

left unattended and unused for

long periods of time, unplug it from

the wall outlet. This will prevent

damage to the product due to

lightning and power-line surges.

IMPORTANT SAFETY INSTRUCTIONS (Continued)

11. Object and Liquid Entry

Never push objects of any kind

into this product through openings

as they may touch dangerous

voltage points or short-out parts

that could result in a fire or electric

shock. Never spill liquid of any

kind on the product.

12. Do not place the product

vertically

Do not use the product in the

upright position to project the

pictures at the ceiling, or any other

vertical positions. It may fall down

and dangerous.

13. Stack Inhibited

Do not stack other equipment on

this product or do not place this

product on the other equipment.

Top and bottom plates of this

product develops heat and may

give some undesirable damage to

other unit.

14. Attachments

Do not use attachments not

recommended by the product

manufacturer as they may cause

hazards.

15. Accessories

Do not place this product on an

unstable cart, stand, tripod,

bracket, or table. The product may

fall, causing serious injury to a

child or adult, and serious damage

to the product. Use only with a

cart, stand, tripod, bracket, or table

recommended by the

manufacturer, or sold with the

product. Any mounting of the

product should follow the

manufacturer's instructions, and

should use a mounting accessory

recommended by the

manufacturer. A product and cart

combination should be moved with

care. Quick stops, excessive

force, and uneven surfaces may

cause the product and cart

combination to overturn.

S3125A