Sharp DT100 Service Manual

SERVICE MANUAL

S95N7DT-100//

MULTIMEDIA PROJECTOR

DT-100

MODEL DT-100

In the interests of user-safety (Required by safety regulations in some countr ies) the set should be restored to its original condition and only parts identical to those specified should be used.

SHARP CORPORATION

This document has been published to be used for after sales service only. The contents are subject to change without notice.

DT-100

• SPECIFICATIONS ............................................3

• IMPORTANT SERVICE SAFETY

NOTES (for USA)..............................................4

• NOTE TO SERVICE PERSONNEL ..................6

• OPERATION MANUAL ...................................10

• DIMENSIONS ................................................. 16

• RESETTING THE TO TAL LAMP TIMER .........17

• REMOVING OF MAJOR PARTS.....................19

• THE OPTICAL UNIT OUTLINE ......................22

• ELECTRICAL ADJUSTMENT .........................24

• TROUBLE SHOOTING TABLE ....................... 30

• BLOCK DIAGRAM ..........................................40

CONTENTS

Page Page

• OVERALL WIRING DIAGRAM........................42

• DESCRIPTION OF SCHEMATIC DIAGRAM .. 44

• WAVEFORMS ................................................. 45

• SCHEMATIC DIAGRAM..................................46

• PRINTED WIRING BOARD ASSEMBLIES..... 74

• PARTS LIST

ELECTRICAL PARTS.................................94

CABINET AND MECHANICAL PARTS ....105

ACCESSORIES PARTS...........................109

PACKING PARTS.....................................109

• PACKING OF THE SET ................................110

SPECIFICATIONS

DT-100

Product type

Model

Video system

Display method

DMD panel

Lens

Projection lamp

Component input signal

(INPUT1/2)

Horizontal resolution

Computer RGB input

(INPUT 1/2)/output

(OUTPUT) signal

S-video input signal

(INPUT 3)

Video input signal

(INPUT 4)

Ver tical frequency

Horizontal frequency

Pixel clock RS-232C terminal Audio input signal

Audio output signal

(AUDIO OUTPUT 1-4)

Speaker system

Rated voltage

Input current

Rated frequency

Power consumption

Power consumption (standby)

Heat dissipation

Operating temperature

Storage temperature

Cabinet

I/R carrier frequency

Dimensions (approx.)

Weight (approx.)

Replacement parts

Projector DT-100 NTSC3.58/NTSC4.43/PAL/PAL-M/PAL-N/PAL-60/SECAM/DTV480I/DTV480P/ DTV540P/DTV576I/DTV576P/DTV720P/DTV1035I/DTV1080I/DTV1080I-50 Single Chip Digital Micromirror Device Panel size: No. of dots: 1–1.15 zoom lens, F2.4–2.6, f = 19.0–21.9 mm

, 1chipDMD

0.53 409,920 dots (854 [H] 480 [V])

(DMDTM) by Texas Instruments

275 W DC lamp 15-pin mini D-sub connector Y: 1.0 Vp-p, sync negative, 75 terminated P

: 0.7 Vp-p, 75 terminated

Ω Ω

Ω

520 TV lines (DTV720P) 15-pin mini D-sub connector RGB separate/sync on green type analog input: 0–0.7 Vp-p , positive, 75 terminated

Ω

HORIZONTAL SYNC. SIGNAL: TTL level (positive/negative) VERTICAL SYNC. SIGNAL: Same as above 4-pin mini DIN connector Y (luminance signal): 1.0 Vp-p, sync negative, 75 terminated C (chrominance signal): Burst 0.286 Vp-p, 75 terminated RCA connector: VIDEO, composite video, 1.0 Vp-p, sync negative, 75

Ω

terminated 45–85 Hz 15–70 kHz 12–108 MHz 9-pin mini DIN connector

ø3.5 mm minijack or RCA terminal: 0.5 Vrms, more than 22 k (stereo) ø3.5 mm minijack: 0.5 Vrms, less than 2.2 k

4 cm 2.85 cm oval 1

××

Ω

AC 100–240 V

3.6 A 50/60 Hz 350 W (Lamp Setting “Bright”)/ 305 W (Lamp Setting “Eco + Quiet”)

with AC 100 V 330 W (Lamp Setting “Bright”)/ 285 W (Lamp Setting “Eco + Quiet”)

with AC 240 V 4 W (AC 100 V) – 5 W (AC 240 V) 1,315 BTU/hour (Lamp Setting “Bright”)/ 1,145 BTU/hour (Lamp Setting “Eco + Quiet”) with AC 100 V 1,240 BTU/hour (Lamp Setting “Bright”)/ 1,070 BTU/hour (Lamp Setting “Eco + Quiet”) with AC 240 V 41°F to 95°F (+5°C to +35°C) –4°F to 140°F (–20°C to +60°C) Plastic 38 kHz

12 12

/32" 4 19/64" 11 1/32" (315 (W) 109 (H) 280 (D) mm) (main body only)

/32" 4 47/64" 11 37/64" (315 (W) 120 (H) 294 (D) mm) (including adjust-

× ×

ment foot and projecting parts)

8.6 lbs. (3.9 kg) Remote control, Power cord for U.S. and Canada, 3 RCA to 15-pin D-sub adaptor, Operation manual

As a part of policy of continuous improvement, SHARP reserves the right to make design and specification changes for product improvement without prior notice. The performance specification figures indicated are nominal values of production units. There may be some deviations from these values in individual units.

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2 2

IMPORTANT SERVICE SAFETY NOTES (for USA)

Ë Service work should be performed only by qualified service technicians who are

thoroughly familiar with all safety checks and servicing guidelines as follows:

WARNING

1. For continued safety, no modification of any circuit should be attempted.

2. Disconnect AC power before servicing.

» Use an AC voltmeter with sensitivity of 5000 ohm per

volt., or higher, sensitivity to measure the AC voltage drop across the resistor (See Diagram).

» All checks must be repeated with the AC plug

connection reversed. (If necessary, a non-polarized adapter plug must be used only for the purpose of

BEFORE RETURNING THE PROJECTOR: (Fire & Shock Hazard)

Before returning the projector to the user, perform the following safety checks:

1. Inspect lead wires are not pinched between the chassis

completing these checks.) Any reading of 0.3 volts RMS (this corresponds to 0.2 milliamp. AC.) or more is excessive and indicates a potential shock hazard which must be corrected before returning the unit to the owner.

and other metal parts of the projector.

2. Inspect all protective devices such as non-metallic control knobs, insulating materials, cabinet backs,

DVM

AC SCALE

adjustment and compartment covers or shields, isolation resistor-capacity networks, mechanical insulators, etc.

1.5k ohm 10W

3. To be sure that no shock hazard exists, check for current leakage in the following manner:

» Plug the AC cord directly into a 120-volt AC outlet, (Do

not use an isolation transformer for this test).

0.15 µF

TEST PROBE

» Using two clip leads, connect a 1.5k ohm, 10 watt

resistor paralleled by a 0.15µF capacitor in parallel between all exposed metal cabinet parts and earth ground.

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TO EXPOSED METAL PARTS

CONNECT TO KNOWN EARTH GROUND

SAFETY NOTICE

Many electrical and mechanical parts in DMD™ Projector have special safety-related characteristics. These characteristics are often not evident from visual inspection, nor can protection afforded by them be necessarily increased by using replacement components rated for higher voltage, wattage, etc. Replacement parts which have these special safety characteristics are identified in this manual; electrical components having such features are identified by “å” and shaded areas in the Replacement Parts Lists and Schematic Diagrams. For continued protection, replacement parts must be identical to those used in the original circuit. The use of a substitute replacement parts which do not have the same safety characteristics as the factory recommended replacement parts shown in this service manual, may create shock, fire or other hazards.

AVIS POUR LA SECURITE

De nombreuses pièces, électriques et mécaniques, dans les projecteur à DMD™ présentent des caractéristiques spéciales relatives à la sécurité, qui ne sont souvent pas évidentes à vue. Le degré de protection ne peut pas être nécessairement augmentée en utilisant des pièces de remplacement étalonnées pour haute tension, puissance, etc. Les pièces de remplacement qui présentent ces caractéristiques sont identifiées dans ce manuel; les pièces électriques qui présentent ces particularités sont identifiées par la marque “å” et hachurées dans la liste des pièces de remplacement et les diagrammes schématiques. Pour assurer la protection, ces pièces doivent être identiques à celles utilisées dans le circuit d’origine. L’utilisation de pièces qui n’ont pas les mêmes caractéristiques que les pièces recommandées par l’usine, indiquées dans ce manuel, peut provoquer des électrocutions, incendies ou autres accidents.

WARNING: The bimetallic component has the primary

conductive side exposed. Be very careful in handling this component when the power is on.

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AVERTISSEMENT:La composante bimétallique dispose du

conducteur primaire dénudé. Faire attention lors de la manipulation de cette composante sous tension.

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PRECAUTIONS A PRENDRE LORS DE LA REPARATION

Ne peut effectuer la réparation qu' un technicien spécialisé qui s'est parfaitement accoutumé à toute vérification de sécurité et aux conseils suivants.

AVERTISSEMENT

1. N'entreprendre aucune modification de tout circuit. C'est dangereux.

2. Débrancher le récepteur avant toute réparation.

VERIFICATIONS CONTRE L'INCEN-DIE ET LE CHOC ELECTRIQUE

Avant de rendre le récepteur à l'utilisateur, effectuer les vérifications suivantes.

1. Inspecter tous les faisceaux de câbles pour s'assurer que les fils ne soient pas pincés ou qu'un outil ne soit pas placé entre le châssis et les autres pièces métalliques du récepteur.

2. Inspecter tous les dispositifs de protection comme les boutons de commande non-métalliques, les isolants, le dos du coffret, les couvercles ou blindages de réglage et de compartiment, les réseaux de résistance-capacité, les isolateurs mécaniques, etc.

3. S'assurer qu'il n'y ait pas de danger d'électrocution en vérifiant la fuite de courant, de la facon suivante:

• Brancher le cordon d'alimentation directem-ent à une prise de courant de 110-240V. (Ne pas utiliser de transformateur d'isolation pour cet essai).

• A l'aide de deux fils à pinces, brancher une résistance de 1.5 kΩ 10 watts en parallèle avec un condensateur de 0.15µF en série avec toutes les pièces métalliques exposées du coffret et une terre connue comme une

conduite électrique ou une prise de terre branchée à la terre.

• Utiliser un voltmètre CA d'une sensibilité d'au moins 5000Ω/V pour mesurer la chute de tension en travers de la résistance.

• Toucher avec la sonde d'essai les pièces métalliques exposées qui présentent une voie de retour au châssis (antenne, coffret métallique, tête des vis, arbres de commande et des boutons, écusson, etc.) et mesurer la chute de tension CA en-travers de la résistance. T outes les vérifications doivent être refaites après avoir inversé la fiche du cordon d'alimentation. (Si nécessaire, une prise d'adpatation non polarisée peut être utilisée dans le but de terminer ces vérifications.) Tous les courants mesurés ne doivent pas dépasser 0.5 mA. Dans le cas contraire, il y a une possibilité de choc électrique qui doit être supprimée avant de rendre le récepteur au client.

DVM

ECHELLE CA

1.5k ohm 10W

AUX PIECES METALLIQUES EXPOSEES

0.15 µF

SONDE D'ESSAI

BRANCHER A UNE TERRE CONNUE

DT-100

NO TE TO SER VICE PERSONNEL

UV-RADIATION PRECAUTION

The light source, UHP lamp, in the LCD projector emits small amounts of UV-Radiation.

AVOID DIRECT EYE AND SKIN EXPOSURE.

To ensure safety please adhere to the following:

1. Be sure to wear sun-glasses when servicing the projector with the lamp turned “on” and the top enclosure removed.

2. Do not operate the lamp outside of the lamp housing.

NOTE POUR LE PERSONNEL D’ENTRETIEN

PRECAUTION POUR LES RADIATIONS UV

La source de lumière, la lampe UHP, dans le projecteur LCD émet de petites quantités de radiation UV.

EVITEZ TOUTE EXPOSITION DIRECTE DES YEUX ET DE LA PEAU.

Pour votre sécurité, nous vous prions de respecter les points suivants:

1. T oujours porter des lunettes de soleil lors d’un entretien du projecteur avec la lampe allumée et le haut du coffret retiré.

2. Ne pas faire fonctionner la lampe à l’extérieur du boîtier de lampe.

3. Do not operate for more than 2 hours with the enclosure removed.

UV-Radiation and Medium Pressure Lamp Precautions

1. Be sure to disconnect the AC plug when replacing the lamp.

2. Allow one hour for the unit to cool down before servicing.

3. Replace only with same type lamp. Type AN-100LP rated 275W DC.

4. The lamp emits small amounts of UV -Radiation, av oid direct-eye contact.

5. The medium pressure lamp involves a risk of explosion. Be sure to follow installation instructions described below and handle the lamp with care.

3. Ne pas faire fonctionner plus de 2 heures av ec le coffret retiré.

Précautions pour les radiations UV et la lampe moyenne pression

1. Toujours débrancher la fiche AC lors du remplacement de la lampe.

2. Laisser l’unité refroidir pendant une heure avant de procéder à l’entretien.

3. Ne remplacer qu’avec une lampe du même type. Type AN-100LP, caractéristique 275 W-DC.

4. La lampe émet de petites quantités de radiation UVéviter tout contact direct avec les yeux.

5. La lampe moyenne pression implique un risque d’explosion. Toujours suivre les instructions d’installation décrites ci-dessous et manipuler la lampe avec soin.

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6 6

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UV-RADIATION PRECAUTION (Continued)

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Lamp Replacement

Note:

Since the lamp reaches a very high temperature during units operation replacement of the lamp should be done at least one hour after the power has been turned off. (to allow the lamp to cool off.) Installing the new lamp, make sure not to touch the lamp (bulb) replace the lamp by holding its reflector

2. [Use original replacement only.]

Lamp

Reflector

DANGER ! –– Never turn the power on without the lamp to avoid electric-shock or damage of the de vices since the stabilizer generates high voltages at its start.

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PRECAUTION POUR LES RADIATIONS UV (Suite)

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Remplacement de la lampe

Remarque:

Comme la lampe devient très chaude pendant le fonctionnement de l’unité, son remplacement ne doit être effectué au moins une heure après avoir coupé l’alimentation (pour permettre à la lampe de refroidir). En installant la nouvelle lampe, s’assurer de ne pas toucher la lampe (ampoule). Remplacer la lampe en tenant son réflecteur 2. [N’utiliser qu’un remplacement d’origine.]

Lampe

Reflecteur

DANGER ! –– Ne jamais mettre sous tension sans la lampe pour éviter un choc électrique ou des dommages des appareils car le stabilisateur génère de hautes tensions à sa mise en route.

Since small amounts of UV-radiation are emitted from an opening between the exhaust fans , it is recommended to place the cap of the optional lens on the opening during servicing to avoid eye and skin exposure.

To illuminate the lamp in the unit with Top Body removed, attach the above Service Top Body (DBDYTA131WJZZ). If not, problems may be caused by UV light emitted from the lamp.

Top Body Part code:DBDYTA131WJZZ

Comme de petites quantités de radiation UV sont émises par une ouverture entre les ventilateurs aspirants, il est recommandé de placer le capuchon de l’optique optionnelle sur l’ouverture pendant l’entretien pour éviter une exposition des yeux et la peau.

Pour allumer la lampe de l'appareil après avoir retiré l'enveloppe supérieure, fixer l'enveloppe supérieure de service ci-dessus (DBDYTA131WJZZ). Dans le cas contraire, il peut se produire un problème dû à l'émission de rayons UV.

Enveloppe supérieur Code de pièce:DBDYTA131WJZZ

DT-100

WARNING: High brightness light source, do not stare into the beam of light, or view directly. Be especially

careful that children do not stare directly in to the beam of light.

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

MOISTURE OR WET LOCATIONS.

CAUTION

RISK OF ELECTRIC SHOCK. DO NOT REMOVE SCREWS

EXCEPT SPECIFIED USER

SERVICE SCREW.

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,

DO NOT REMO VE CABINET.

NO USER-SERVICEABLE PARTS EXCEPT LAMP UNIT.

REFER SERVICING T O Q U ALIFIED SER VICE

PERSONNEL.

The lighting flash with arrowhead within a triangle is intended to tell the user that parts inside the product are risk of electric shock to persons.

The exclamation point within a triangle is intended to tell the user that important operating and servicing instructions are in the manual with the projector.

CAUTION

(POWER Unit)

6.3A 250V

AVERTISSEMENT: Source lumineuse de grande intensité. Ne pas fix er le faisceau lumineux ou le regarder

For continued protection against a risk of fire, replace only with same type

6.3A, AC250V fuse. (F701)

directement. Veiller particulièrement à éviter que les enfants ne fixent directement le faisceau lumineux.

AVER TISSEMENT : AFIN D’EVITER TOUT RISQUE D’INCENDIE OU D’ELECTROCUTION, NE P AS PLA CER

CET APPAREIL DANS UN ENDROIT HUMIDE OU MOUILLE.

ATTENTION

RISQUE D’ÉLECTROCUTION. NE PASR ETIRER LES VIS Á

L’EXCEPTION DE LA VIS DE

REPARATION UTILISATEUR

SPECIFIEES

L’éclair ter miné d’une flèche à l’intérieur d’un triangle indique à l’utilisateur que les pi‘eces se trouvant dans l’appareil sont susceptibles de provoquer une décharge électrique.

Le point d’exclamation à l’intérieur d’un

ATTENTION: POUR EVITER T OUT RISQ UE

D’ELECTR OCUTION, NE PAS RETIRER LE CAPOT .

AUCUNE DES PIECES INTERIEURES N’EST REPARABLE

PAR L’UTILISATEUR, A L’EXCEPTION DE L’UNITE DE

LAMPE. POUR T OUTE REPARATION, S’ADRESSER A UN

TECHNICIEN D’ENTRETIEN QU ALIFIE.

triangle indique à l’utilisateur que les instructions de fonctionnement et d’entretien sont détaillées dans les documents fournis avec le projecteur.

PRECAUTION

(Unité de PUTSSANCE)

6.3A 250V

Pour une protection continue contre un risques d’incendie, ne remplacer qu’avec un fusible 6.3A,AC250V du même type. (F701)

DT-100

Precautions for using lead-free solder

1 Employing lead-free solder

"PWBs" of this model employs lead-free solder. The LF symbol indicates lead-free solder, and is attached on the PWBs and service manuals. The alphabetical character following LF shows the type of lead-free solder.

Example:

L Fa

Indicates lead-free solder of tin, silver and copper.

2 Using lead-free wire solder

When fixing the PWB soldered with the lead-free solder, apply lead-free wire solder. Repairing with conventional lead wire solder may cause damage or accident due to cracks. As the melting point of lead-free solder (Sn-Ag-Cu) is higher than the lead wire solder by 40°C, we recommend y ou to use a dedicated soldering bit, if you are not familiar with how to obtain lead-free wire solder or soldering bit, contact our service station or service branch in your area.

3 Soldering

As the melting point of lead-free solder (Sn-Ag-Cu) is about 220°C which is higher than the conventional lead solder by 40°C, and as it has poor solder wettability, you may be apt to keep the soldering bit in contact with the PWB for extended period of time. Ho we v er, since the land may be peeled off or the maximum heat-resistance temperature of parts may be exceeded, remove the bit from the PWB as soon as you confirm the steady soldering condition. Lead-free solder contains more tin, and the end of the soldering bit may be easily corroded. Make sure to tur n on and off the power of the bit as required. If a different type of solder stays on the tip of the soldering bit, it is allo yed with lead-free solder. Clean the bit after every use of it. When the tip of the soldering bit is blackened during use, file it with steel wool or fine sandpaper.

Be careful when replacing parts with polarity indication on the PWB silk.

Lead-free wire solder for servicing

Part No. ★ Description Code ZHNDAi123250E J φ0.3mm 250g(1roll) BL ZHNDAi126500E J φ0.6mm 500g(1roll) BK ZHNDAi12801KE J φ1.0mm 1kg(1roll) BM

DT-100

Operation Manual

DT-100

STANDBY button

For putting the projector into the standby mode.

KEYSTONE button

For entering the Keystone Correction mode.

RETURN button

For returning to the previous menu screen during menu operations.

ON button

For turning the power on.

MENU/HELP button

For displaying adjustment and setting screens, and help screen.

Adjustment buttons (///)

For selecting menu items. For adjusting the Keystone Correction when in the Keystone Correction mode.

ENTER button

For setting items selected or adjusted on the menu.

FREEZE button

For freezing images.

AV MUTE button

For temporarily displaying the black screen and turning off the sound.

PICTURE MODE button

For selecting the appropriate picture.

Volume buttons

For adjusting the speaker sound level.

AUTO SYNC button

For automatically adjusting images when connected to a computer.

RESIZE button

For switching the screen size (STRETCH, SIDE BAR, CINEMA ZOOM).

INPUT 1, 2, 3 and 4 buttons

For switching to the respective input modes.

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Connection Pin Assignments

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DIMENSIONS

Units: inches(mm)

RESETTING THE T OT AL LAMP TIMER

● Resetting the total lamp timer

When replacing the lamp, reset the total lamp timer in the procedure below.

DT-100

Lamp

■ It is recommended that the lamp (sold separately) be replaced when the remaining lamp life becomes 5% or less, or when you notice a significant deterioration in the picture and color quality. The lamp life (percentage) can be checked with the on-screen display.

■ Purchase a replacement lamp of type AN-100LP from y our place of purchase, nearest Sharp A uthorized Projector Dealer or Service Center.

■ The warning lights (power indicator, lamp indicator and temperature warning indicator) on the projector indicate problems inside the projector.

■ If a problem occurs, either the temperature warning indicator or the lamp indicator will illuminate red, and the projector will enter standby mode. After the projector has entered standby mode, follow the procedures given below.

DT-100

■Keystone correction range expansion and vertical compression adjustment function The variable range of the keystone can be expanded to over the user adjustable range by using

the following RS-232C commands. In addition, the vertical compression can be adjusted.

Command description

Control Command Parameter Return Disabling function BKLM _0 OKorERR Enabling function BKLM _1 OKorERR Keystone correction range expansion BKST ＊＊＊＊ OKorERR

(-200 - +200) Vertical compression adjustment BKVO ＊＊＊＊ OKorERR

(-300 - +300)

REMOVING OF MAJOR PARTS

1.Removing the lamp door and the lamp unit

1-1. Loosen the lamp door fixing screw. Lift off the lamp door. 1-2. Remove 2 lamp unit fixing screws to detach the lamp unit.

1-1

DT-100

Lamp Door

1-2

2.Removing the top body

2-1. Remove 8 top body fixing screws to detach the Top body.

1-2

Lamp Unit

2-1

Top Body

Bottom Body

2-1

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3.Removing the main PWB unit

3-1. Remove all connectors from the main PWB unit. 3-2. Remove 2 terminal fixing screws. 3-3. Remove 3 main PWB fixing screws to detach the main PWB unit.

3-3

[RC]

[CW]

[SO]

[FA]

[MO]

[FB]

[EA]

[LF]

3-1

[BB]

MAIN PWB Unit

[FD]

[FC]

3-3

3-2

4.Removing the speaker, fan, and power supply ballast unit

4-1. Remove the speaker. 4-2. Remove 2 fans for the power supply ballast unit and 1 fan for the optical mechanism unit. 4-3. Remove 2 bimetal fixing screws to detach the bimetal. 4-4. Remove 2 lamp socket fixing screws to detach the lamp socket. 4-5. Remove 1 inlet fixing screw. 4-6. Remove 4 ballast unit fixing screws to detach the power supply ballast unit. 4-7. Remove 4 ballast shield (upper) fixing screws to detach the ballast shield (upper). 4-8. Remove 2 ballast PWB fixing screws and 1 clip to detach the power supply PWB unit from the ballast shield

(lower).

POWER SUPPLY BALLAST Unit

Lamp Socket

Fans for power supply ballast unit

Fan for optical mechanism unit

4-2

4-3

Bimetal

4-6

4-4

4-1

Speaker

POWER SUPPLY BALLAST PWB Unit

4-5

4-7

Ballast shield (upper)

4-7

4-8

Ballast shield (lower)

4-8

5.Removing the optical mechanism unit and RC light receiver PWB

5-1. Remove 4 optical mechanism unit fixing screws to detach the optical mechanism unit. 5-2. Remove the RC light receiver PWB unit.

5-1

Optical Mechanism Unit

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RC Light Receiver PWB

5-2

6.Removing the photosensor PWB unit, blower fan, DMD PWB, and DMD

6-1. Remove 1 photosensor PWB fixing screw to detach the photosensor PWB. 6-2. Remove 2 blower fan fixing screws to detach the blower fan. 6-3. Remove 4 DMD heatsink fixing screws to detach the DMD PWB unit and the DMD.

DMD

Optical Mechanism Unit

Photosensor PWB Unit

6-1

Blower fan

DMD spring

6-2

DMD socket

DMD PWB Unit

Backer plate

DMD heatsink

6-3

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THE OPTICAL UNIT OUTLINE

Layout for proper setup of the optical components and parts (top view)

(Schematic diagram)

Projection lens

Illumination lens 2

Illumination lens 1

Reflection mirror

Plastic Lens

Color wheel

DMD

Item Function Lamp Light source. DC high-pressure mercury lamp. UV/IR cut filter (UV GLASS) Color wheel Splits light from the light source into R, G, B and W through a color filter. Rod (ROD INTEGRATOR) Assures uniform light ray. Illumination lens Focus light from the rod on DMD.

(ILLUMINATION LENS 1, 2) Reflection mirror Reflects light from the illumination lenses toward DMD.

Condencer Lens Condenses the light from the reflection mirror to the DMD and the pupil of the (PLASTIC LENS)

DMD Turns the internal micromirror ON/OFF at the rate of color component of each dot

Projection lens Enlarges light from DMD and projects it on a screen.

Filters out harmful UV and IR rays from the lamp.

projection lens.

of the input source to reflect light.

Rod Integrator

UV Glass

Lamp

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If shading shown in Figure 1 appears on the screen after replacing DMD, turn the adjustment screw of the optical engine to adjust the lighting area of DMD.

1. Loosen the adjustment lever fixing screw 1. After adjusting the lighting area with the adjustment lever 2, tighten the adjustment lever fixing screw 1.

Tightening order: 1→2→3→4 Screw torque: 0.44 ± 0.05 N·m

When mounting DMD, tighten the 4 screws evenly.

Fig. 1

Shading

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ELECTRICAL ADJUSTMENT

No. Adjusting point Adjusting conditions Adjusting procedure

1 EEPROM

initialization

2 Model setting (Process menu)

3 Adjustment of

CW index

4 R/G/B contrast

adjustment (manual or automatic)

1. T urn on the power (with the lamp on) and warm up the set for 15 minutes.

1. Select the following group and subject. Group: CONFIRM Subject: MODEL

1. Signal input: Send 256 STEP color bar. XGA series (XGA60HZ), SVGA series (SVGA60HZ)

2. Select the following group and subject. Group: ADJUST CW/Auto KS Subject: CW-INDEX.

1. Select the following group and subjects. Group : ADJUST

AD/DLP

Subject : R-CONT

G-CONT B-CONT

(Process GAMMA interlock)

2. Feed white signal with the amplitude level of 96% (0.67Vpp). XGA series (XGA60HZ), SVGA series (SVGA60HZ)

» Make the following settings.

Press S2551 to call the process mode and execute "SS2" on SS menu.

1. Set as below. : 1 (default)

1. Feed the signal to input 1.

2. Select the adjustment item and adjust the lamp gradation patterns of RGBW so that smooth patterns without noise appear.

R G B

1. Measure chromaticity of the 96% white wind pattern using CA100.

2. On the screen where bit dropouts occur, raise the values of R/G/B-Contrast. Adjust the values so that bright red, green, and blue bit dropouts appear on a black background; and amounts of change in x value of R and y values of G/B become 100/1000 or more.

3. If adjustment is performed manually watching the screen, make adjustment so that bright red, green, and blue bit dropouts appear on more than half of the screen.

5 RGB white

balance adjustment

6 sRGB white

balance adjustment

1. Feed the 50% gray signal. XGA series (XGA60HZ), SVGA series (SVGA60HZ)

2. Select the following group and subjects. Group : ADJUST

AD/DLP

Subject : R-GAIN

G-GAIN

B-GAIN

1. Feed the 50% gray signal. XGA series (XGA60HZ), SVGA series (SVGA60HZ)

2. Select the following group and subjects. Group : CONFIRM/DLP Subject : S-G-OS

S-B-OS

1. Raise the values of two of R/G/B-GAIN (default:

100) so that the following chromaticity values are obtained using CL200. x value: 300 ± 5 y value: 320 ± 5

1. Adjust S-G-OS and S-B-OS so that the following chromaticity values are obtained using CL200. x value: 313 ± 5 y value: 329 ± 5

Check items

No. Adjusting point Adjusting conditions Adjusting procedure

DT-100

1 Adjustment of

RGB brightness

2 Adjustment of

Component offset

3 Adjustment of

DLP Brightness

1. Select the following group and subjects. Group : CONFIRM/AD Subject : R-BRIGHT

G-BRIGHT B-BRIGHT

(Process GAMMA interlock)

1. Feed 10-step signal with 480P component 100% amplitude.

2. Select the following group and subjects. Group : CONFIRM/AD Subject :C-R-OS

C-B-OS

(Process GAMMA interlock)

1. Select the following group and subject. Group : CONFIRM/DLP Subject :R-BLK

G-BLK B-BLK

(Process GAMMA interlock)

1. Check the fixed value. Fixed value : 127

1. Check the fixed value. C-R-OS : 260 C-B-OS : 260

1. Check the fixed value.

Fixed value : 256

4 Video Contrast

adjustment

5 Adjustment of

Video Brightness

1. Feed NTSC 100% wind pattern signal. (Signal with burst)

2. Select the following group and subjects. Group : CONIRM/

VIDEO

Subject : V-CONT

1. Feed NTSC 100% wind pattern signal. (Signal with burst)

2. Select the following group and subject. Group : CONFIRM/VIDEO Subject : V-BRIGHT

1. Check the fixed value. Fixed value : 124

1. Check the fixed value. Fixed value : 68

DT-100

No. Adjusting point Adjusting conditions Adjusting procedure

6 Adjustment of

Video Tint

7 Adjustment of

Video color saturation

8 RGB tone

reproduction adjustment

9 VIDEO white

balance adjustment

1. Feed split color bar.

2. Select the following group and subject. Group : CONFIRM/VIDEO Subject : V-HUE

1. Select the following group and subject. Group : CONFIRM/VIDEO Subject : V-COLOR

1. Feed the SMPTE pattern signal.

1. Feed the 50% gray signal.

2. Select the following group and subjects. Group :CONFIRM/VIDEO Subject : V-R-OS

V-B-OS

1. Check the fixed value. Fixed value : 128

1. Check the fixed value. Fixed value : 154

1. Make sure the 100% and 95% white as well as the 0% and 5% black gradations are visible.

1. V-R-OS is 132. V-B-OS is 132.

10 White balance

checking and readjustment

11 Off-timer per-

formance

performance checking

13 Auto sync

performance checking

14 Monitor out

check

1. RGB Inputt sRGB Input VIDEO Input DTV Input DVD Input

1. Select the following group and subjects. Group :CONFIRM/CHECK Subject : TEMP-OFF

1. Heat the thermistor with a hair dryer.

1. Feed the phase check pattern signal.

1. Send signals to INPUT 1 and INPUT 2.

2. Connect another monitor to the monitor out.

3. Connect the audio OUT.

Check that there is no deviation of white balance with the monitor.

1. Select OFF from the process mode. Make sure the off-timer starts with 5 minutes onscreen and count one minute in one second. And then indication is 0 minute, the power supply of the set is cut off.

1. Make sure that the temperature is indicated.12 Thermistor

1. In the VGA, SVGA, XGA and SXGA modes, make sure the Clock, Phase, H-Pos and V-Pos settings can be automatically adjusted.

1. Check that the same images as seen on the screen appear on the connected monitor and that the sound from the sound source connected to the audio OUT is heard.

No. Adjusting point Adjusting conditions Adjusting procedure

DT-100

15 RS232C opera-

tion check

16 Model name and

version check

17 Delivery set-

tings

* Writing a software program (before main PWB is mounted) Use the DLP Composer Lite Ver. 4.2 or higher to download the firmware. After writing the specified version of firmware to the PWB using the RS232C cable, check the version of the written firmware. If no software program is written, all three LEDs light up in the chassis inspection process.

1. Connect the unit and a PC with the RS232C cable.

1. Select the following group. Group : INFO/VERSION.

1. Send a command from the PC, and check it functions correctly.

1. The model name appears in the MODEL field, and the firmware version in the VERSION field. Check that they are correct.

1. Make the following settings. Destination Process Remote control

adjustment adjustment

USA SS4 Factory setting at 4

China SS6 Factory setting at 6

Others SS3 Factory setting at 3

1. Calling and quitting the process mode with the control keys on this model.

∗ Although it is possible for the process OUT to exit using the process menu, the IN/OUT toggle command is also

available considering the existing specification.

1-1. Calling and quitting

With the menu not displayed, press the "ENTER", "ENTER", "VOL+", "VOL-", "ENTER", "ENTER" and "MENU" keys on the remote control (one for C50/45 or P25/20 system is also usable) or on the main unit.

1-2. Others

Press the S2551 process key (toggle) on the main PWB to call and quit the process menu.

Note: When adjusting in the process mode, set a signal with a vertical frequency of 60 Hz or no signal. (May not be

properly adjusted with other signals.)

2. Resetting the lamp timer for this model

2-1. Resetting procedure

In Stand-by, run this command to clear the operating time of the lamp to 0 and turn on the power. Press and hold """, "ENTER", and "MENU", and then press the "STANDBY/ON" key of the set.

3. Forced disabling of the System-Lock of this model

3-1. Disabling procedure

With System-Lock input window onscreen, press the "MENU", "ENTER", "ENTER", "MENU", "ENTER", "ENTER" and "MENU" keys, in this order, on the remote controller.

DT-100

» Adjustment mode process menu

1st Layer 2nd Layer Default ADJUST CW/Auto KS CW-INDEX 20

CAL K-SENS (0)

AD/DLP R-CONT 110

G-CONT 110 B-CONT 110 R-GAIN 100 G-GAIN 100 B-GAIN 100

SS SS1 −

SS2 − SS3 − SS4 − SS5 − SS6 −

CONFIRM AD R-BRIGHT 127

G-BRIGHT 127 B-BRIGHT 127 C-R-OS 260 C-B-OS 260

DLP R-BLK 256

G-BLK 256

1st Layer 2nd Layer Default INFO VERSION MODEL −

VER. −

PATTERN RGB 1

RGB50 1 CORSS 1 STEP 1 COLOR 1 CHR 1

LAMP CURRENT 0

HISTORY1 0 HISTORY2 0 HISTORY3 0 HISTORY4 0 TOTAL 0

TEMP/FAN TEMP1 −

TEMP2 − FAN0 3 FAN1 3 FAN2 3

OTHER 232C

EXIT

232C-MODE

B-BLK 256 S-R-OS 128 S-G-OS 128 S-B-OS 128

VIDEO V-CONT 124

V-BRIGHT 68 V-COLOR 154 V-HUE 128 V-R-OS 132 V-G-OS 128 V-B-OS 132 OFFSET-MODE OFFSET-CONT

OFFSET-BRI MODEL CHECK LED-CHK 0

MODEL-SELECT

TEMP-OFF −

0 0

RefNo.

R905

IC7707

IC7704

IC7701

1 2



Adjustmentjig(resistanceload25Ω)

Partname

Partcode

PWMcontroller 

RR-FZA002WJZZ

DUNTKD148WEF0

RH-iXB458WJZZ

Manufacturer 

RUNTZA018WJZZ

AsahiCommunication 

SMK

VHITA78L05F-1Y VHIM51995AF-1Y

Cementresistor

ControlPWB

Ballastmicroprocessor

5Vregulator 



BallastUnit LampCable (QCNW-D573WJQZ)

AdjustmentJig

(RUNTZA018WJZZ)

ConnectingCord

（Q C NW -E007WJZZ)

Projector

TP1

TP2

−

＋

[Adjustmentofballastunitoutputpower(lamppower)] 

1.Listofpartsrequiringadjustment

 Whenreplacingthefollowingparts,adjusttheballastunitoutputpower(lamppower).  

2.Adjustmentjigs

 Thefollowingjigsarerequiredforadjustingtheballastunitoutputpower(lamppower).  

3.Ballastunitoutputpower(lamppower)adjustmentmethod

 Adjusttheballastunitoutputpower(lamppower)inthefollowingmethod.  

[Adjustmentmethod]

（1）Unplugtheballastunitlampcable(QCNW-D573WJQZ)oftheprojectorfrom  thelampandconnectthecabletotheconnectingcord(QCNW-E007WJZZ). （2）Connecttheconnectingcord(QCNW-E007WJZZ)totheadjustmentjig  (RUNTZA018WJZZ). （3）ConnectTP1oftheadjustmentjig(RUNTZA018WJZZ)tothenegativeterminalofthe  testerandTP2tothepositiveterminal. （4）Turnontheprojector. （5）Agetheprojectorfor60secondsormore. （6）Adjustthevolumeresistor(R7728)oftheballastcontrolPWB(DUNTKD148WEF0)so  thatthevoltageofthetesterreaches83±0.5V. 

Adjustmentvalue:83±0.5V  [Cautions]

（1）Cautionforelectricshock:DonottouchthetestpointsTP1andTP2oftheadjustment  jigwhensupplyingpowersinceahighvoltageandlargecurrentisappliedtothem. （2）Cautionforheat:Becarefulthattheresistanceloadoftheadjustmentjigproducesahigh  temperaturewhensupplyingpower. （3）Connectionofthelampcable:Checkthatthelampcableandconnectingcord(QCNW-E  007WJZZ)areconnectedsecurely.  Poorconnectionmaycausesmokingorignitionduetoarcdischarge.  

[Settingmethod] 

Tester (Voltage) 

DT-100

TROUBLE SHOOTING TABLE

Checking the basic

operation

Does the power LED light up or flash in red or green?

YES

Does the set function with its keys or the remote controller?

YES

Lamp does not turn on or it turns off in a short time.

Nothing is displayed or white vertical line noise

Colors are not displayed normally. Color deviation and color fluctuation occur.

YES

Has P1701 come off or is it loose?

Go to "Main PWB check".

Go to "Checking the lamp light-up".

Go to "DMD system check".

Check PHOTO SENSOR circuit.

YES

Fully insert the connector.

Are RGB and component input displayed normally?

YES

Is VIDEO input displayed normally?

YES

Is S-VIDEO input displayed normally?

YES

END

Go to "RGB and component signal check".

Go to "VIDEO input check".

Go to "S-VIDEO input check".

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