background image
SERVICE MANUAL
FILE NO. 330-200301
3LCD DATA PROJECTOR
TLP-T50M
TLP-T50
TLP-S30
TLP-T50/TLP-T50M/TLP-S30


background image
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.


background image
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


background image
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.
1.
Read Owner's Manual
After unpacking this product, read
the owner's manual carefully, and
follow all the operating and other
instructions.
2.
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.
3.
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.
4.
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
USA only
CANADA only


background image
Bef
ore
Using
5.
Heat
The product should be situated
away from heat sources such as
radiators, heat registers, stoves, or
other products (including
amplifiers) that produce heat.
6.
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.
7.
Cleaning
Unplug this product from the wall
outlet before cleaning. Do not use
liquid cleaners or aerosol cleaners.
Use a soft cloth for cleaning.
8.
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.
9.
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