SERVICE MANUAL
FILE NO. 330-200008
SUPPLEMENT
3LCD DATA PROJECTOR
TLP-X10U/11U/20U/21U
TLP-X10E/11E/20E/21E
TLP-X10Y/11Y/20Y/21Y
TLP-X20C/21C
TXP-X20/21
TEMP
LAMP
ON
BUSY
FAN
ON/ST
ANDBY
KEYST
ONE
SET
AUT
O
AUT
O
EXIT
ENTER
MENU
INPUT
VOL/ADJ
.
USB
MONIT
OR
OUT
COMPUTER
IN
1
( Y/P
B/P
R
)
COMPUTER
IN
2
CONTR
OL
S-VIDEO
VIDEO
VIDEO
IN
R - A
UDIO
- L
AU
DIO
IN
AUDIO
OUT
SAFETY PRECAUTION
PRODUCT SAFETY NOTICE
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 a 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, paralleled by 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 combina-tion of 1500 ohm
resistor and 0.15 uF capacitor. Reverse the AC
plug at the AC outlet and repeat AC voltage mea-
surements for each exposed metallic part. Voltage
mea-sured must not exceed 5.25V(rms). This
corresponds to 3.5 mA(AC). Any value exceeding
this limit consti-tutes a potential shock hazard and
must be corrected immediately.
Many electrical and mechanical parts in this chassis have special safety-related characteristics. These
charac-teristics are often passed unnoticed by a visual inspection and the protection afforded by them cannot
neces-sarily 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.
0-2
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.
TABLE OF CONTENTS
SAFETY PRECAUTIONS .................................... 0-4
IMPORTANT PRECAUTIONS ............................. 0-4
IMPORTANT SAFETY INSTRUCTION ................ 0-5
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 .............................................. 1-6
3-4. Drive PC Board ............................................. 1-7
3-5. Power Supply ................................................ 1-8
3-6. Ballast power Supply ................................... 1-10
3-7. Optical Engine ............................................. 1-12
3-8. LCD Panel ................................................... 1-14
3-9. MULTI-PBS (Polarizing Beam Splitter) ........1-18
3-10. Optical Engine Cooling Fan .......................1-19
3-11. Polarized Plate .......................................... 1-20
3-12. Intake Fan ................................................. 1-21
3-13. Exhaust Fan .............................................. 1-22
3-14. Speaker Block ........................................... 1-23
3-15. Video/Audio PC Board .............................. 1-24
3-16. Document camera ..................................... 1-25
3-17. Screws For Mechanical Parts ....................1-26
3-18. Screws For Optical Engine ........................ 1-27
3-19. How to disconnect FFC/FPC Connector ... 1-28
4. OPTICAL ADJUSTMENT ...................................1-32
4-1. Preparation .................................................. 1-32
4-2. Adjustment of Focus ....................................1-34
5. ELECTRICAL ADJUSTMENT ............................ 1-36
5-1. Preparation .................................................. 1-36
5-2. All adjust data download ............................. 1-37
5-3. Electrical adjustment ................................... 1-37
5-3-1. Menu selection ......................................... 1-38
5-3-2. Keystone setting (1) ................................. 1-39
5-3-3. Drive setting (DVI signal) ......................... 1-39
5-3-4. Setting signal level ................................... 1-41
5-3-5. White balance .......................................... 1-43
5-3-6. Keystone setting (2) ................................. 1-44
SECTION 2
SERVICING DIAGRAMS
1. TROUBLE SHOOTING ....................................... 2-1
2. LED DISPLAY ..................................................... 2-2
3. CIRCUIT BLOCK DIAGRAM ............................... 2-3
4. WIRING BLOCK DIAGRAM ............................... 2-4
5. CONNECTOR PIN ASSIGNMENT ..................... 2-5
6. SERVICE JIGS
6-1. Extension cable kit ....................................... 2-7
7. EXPLANATION OF MAIN / DRIVE PC BOARD ..... 2-8
7-1. Main PCB ..................................................... 2-8
7-2. Drive PCB ................................................... 2-9
SECTION 3
PARTS LIST
1. EXPLODED VIEWS ............................................ 3-1
1-1. Remote Control Unit ..................................... 3-1
1-2. Packing Assembly ........................................ 3-2
1-3. Accessories .................................................. 3-3
1-4. Chassis Assembly ........................................ 3-4
1-5. PC Board and Power Unit Assembly ............ 3-5
1-6. Document Camera Assembly ....................... 3-6
1-7. Labels ........................................................... 3-7
2. PARTS LIST ........................................................ 3-8
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SAFETY PRECAUTIONS
IMPORTANT PRECAUTIONS
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 INSIDETHE ENCLOSURE. DO NOT OPEN THE CABINET. REFER
SERVICING TO QUALIRED PERSONNEL ONLY.
CAUTION:
FCC Radio Frequency Interference Statement
Laser beam is emitted when the laser button of the remote control is pressed. Do not
look from the front of the remote control. Do not face toward a person or to a mirror.
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 numerique de la classe A est conforme a la norme NMB-003 du Canada.
Save Original Packing Materials
The original shipping carton and packing materials will come in handy
if you ever have to ship your LCD projector. For maximum protection,
repack the set as it was originally packed at the factory.
Avoid Volatile Liquid
Do not use volatile liquids, such as an insect spray, near the unit.
Do not leave rubber or plastic products touching the unit for a long
time. They will mar the finish.
Moisture Condensation
Never operate this unit immediately after moving it from a cold
location to a warm location. When the unit is exposed to such a
change in temperature, moisture may condense on the crucial
internal parts. To prevent the unit from possible damage, do not use
the unit for at least 2 hours when there is an extreme or sudden
change in temperature.
In the spaces provided below, record the Model and Serial No. Iocated
at the bottom of your LCD projector.
Mode No.
Serial No.
Retain this information for future reference.
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION:
TO
REDUCE
THE
RISK
OF
ELECTRIC SHOCK.
DO NOT REMOVE
COVER (OR BACK). NO USER SERVICEABLE
PARTS INSIDE.
REFER SERVICING TO
QUALIFIED SERVICE PERSONNEL.
0-4
IMPORTANT SAFETY INSTRUCTIONS
CAUTION: PLEASE READ AND OBSERVE ALL WARNINGS AND INSTRUCTIONS GIVEN IN 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 fs
manual carefully, and follow all the operating and
other instructions.
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 fs instructions have been adhered
to.
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.
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.
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.
0-5