Sharp XG-P20XU, XG-P20XE, XG-P20XD Service Manual

XG-P20XU XG-P20XE XG-P20XD

SERVICE MANUAL SERVICE-ANLEITUNG

S51T3XG-P20XU

LCD PROJECTOR LCD PROJEKTOR

XG-P20XU XG-P20XE

MODELS MODELLE

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

Im lnteresse der Benutzersicherheit (erforderliche Sicherheitsregeln in einigen Ländern) muß das Gerät in seinen Originalzustand gebracht werden. Außerdem dürfen für die spezifizierten Bauteile nur identische T eile verwendet werden.

XG-P20XD

SHARP CORPORATION

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

XG-P20XU XG-P20XE XG-P20XD

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

• IMPORTANT SERVICE SAFETY

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

• NOTE TO SERVICE PERSONNEL ................... 5

• OPERATION MANUAL ...................................... 8

• REMOVING OF MAJOR PARTS ..................... 12

• RESETTING THE TOT AL LAMP TIMER ......... 19

• THE OPTICAL UNIT OUTLINE........................ 20

• CONVERGENCE AND FOCUS

ADJUSTMENT................................................. 21

• ELECTRICAL ADJUSTMENT.......................... 28

• TROUBLE SHOOTING TABLE........................ 36

• CHASSIS LAYOUT .......................................... 82

CONTENTS

Page Page

• BLOCK DIAGRAM ........................................... 84

• OVERALL WIRING DIAGRAM ........................ 86

• DESCRIPTION OF SCHEMATIC DIAGRAM... 88

• WAVEFORMS .................................................. 89

• SCHEMATIC DIAGRAM .................................. 90

• PRINTED WIRING BOARD ASSEMBLIES ... 122

• PARTS LIST

ELECTRICAL PARTS............................... 129

CABINET AND MECHANICAL PARTS .... 147

ACCESSORIES PARTS........................... 152

PACKING PARTS..................................... 152

• PACKING OF THE SET ................................. 153

Seite Seite

• TECHNISCHE DATEN..................................... 44

• HINWEISE FÜR DAS

WARTUNGSPERSONAL................................. 45

• BEDIENUNGSANLEITUNG............................. 46

• ENTFERNEN DER HAUPTTEILE ................... 50

• RÜCKSTELLEN DES

LAMPENBETRIEBSZEIT-TIMERS.................. 57

• ÜBERSICHT DER OPTIK-EINHEIT................. 58

• EINSTELLUNG VON KONVERGENZ UND

BRENNPUNKT ................................................ 59

• ELEKTRISCHE EINSTELLUNG ...................... 66

• FEHLERSUCHTABELLE ................................. 74

• CHASSIS-ANORDNUNG ................................ 82

• BLOCKSCHALTBILD ....................................... 84

INHALT

• GESAMTSCHALTPLAN................................... 86

• BESCHREIBUNG DES SCHEMATISCHEN

• WELLENFORMEN........................................... 89

• SCHEMATISCHER SCHALTPLAN.................. 90

• LEITERPLATTENEINHEITEN ....................... 122

• ERSATZTEILLISTE

• VERPACKEN DES GERÄTS ......................... 153

SCHALTPLANS ............................................... 88

ELEKTRISCHE BAUTEILE ...................... 129

CEHÄUSE UND MECHANISCHE

BAUTEILE ................................................ 147

ZUBEHÖRTEILE...................................... 152

VERPACKUNGSTEILE ............................ 152

Specifications

XG-P20XU XG-P20XE XG-P20XD

Product type

Model

Video system

LCD Projector XG-P20XU/XE/XD PAL/PAL 60/PAL-M/PAL-N/SECAM/NTSC 3.58/NTSC 4.43 DTV 480P/720P/1080i

Display method

LCD panel

LCD panel × 3,RGB optical shutter method Panel size:1.3" (20.0 [H ] × 26.6 [W ] mm)) Display method:Translucent TN liquid crystal panel Drive method:TFT (Thin Film Transistor)Active Matrix panel No.of dots:786,432 dots (1,024 [H ] × 768 [V ])

Standard Lens

Projection lamp

Contrast ratio

Video input signal

1 –1.3 × zoom lens, F1.7 – 2.3, f =49.1 – 63.8 mm AC 220 W lamp 600:1 RCA Connector:VIDEO, composite video, 1.0 Vp-p,sync negative, 75Ω terminated RCA Connector:AUDIO, 0.5 Vrms more than 22 kΩ (stereo)

S-video input signal

4-pin Mini DIN connector Y (luminance signal):1.0 Vp-p, sync negative, 75Ω terminated C (chrominance signal):Burst 0.286 Vp-p, 75Ω terminated

Component input signal

BNC Connector (INPUT 2) Y:1.0 Vp-p,sync negative, 75Ω terminated

:0.7 Vp-p, 75Ω terminated

P P

:0.7 Vp-p, 75Ω terminated

Horizontal resolution

RGB input signal

520 TV lines (S-video input), 750 TV lines (DTV 720P input, STRETCH mode) 15-PIN MINI D-SUB CONNECTOR (INPUT 1), 5 BNC CONNECTOR (INPUT 2): RGB separate/composite sync/sync on green type analog input:0 –0.7 Vp-p, positive, 75Ω terminated

Pixel clock

Vertical frequency

Horizontal frequency

Computer control signal

Speaker system

CONNECTOR

DVI H

ORIZONTAL SYNC.SIGNAL

ERTICAL SYNC.SIGNAL TEREO MINIJACK

S 12 – 230 MHz 43 – 200 Hz 15 – 126 kHz 9-pin D-sub connector (RS-232C Input Port/Output Port)

⁄64"(4.5 cm) round × 2

(29-

)(INPUT 3), RGB (DIGITAL), 250 –1,000 mV, 50Ω

:TTL level (positive/negative) or composite sync (Apple only)

:Same as above

:AUDIO, 0.5 Vrms, more than 22 kΩ (stereo)

2 W + 2 W (stereo)

Rated voltage

Input current

Rated frequency

Power consumption

Power dissipation

Operating temperature

Storage temperature

Cabinet

GyroRemote

Dimensions (approx.)

AC 100 – 240 V

3.95 A 50/60 Hz 330 W <1,250 BTU/hour 41 °F to 104 °F (+5 °C to +40 °C) –4 °F to 140 °F (–20 °C to +60 °C) Plastic Radio Frequency Range:49.825 – 49.895 MHz

⁄16"(W) × 6 3 ⁄32"(H) × 16 21 ⁄32"(D)(319.0 × 155.0 × 423.0 mm)(main body only)

⁄32"(W) × 7 27 ⁄64"(H) × 17 15 ⁄64"(D)(322.5 × 188.5 × 438.0 mm)(including standard

lens, adjustment feet and projecting parts)

Weight (approx.)

Supplied accessories

21.0 lbs.(9.5 kg) GyroRemote, Four AAA size batteries, Power cord (11'10",3.6 m), RGB cable (9'10", 3 m), USB mouse control cable (3'3",1 m), Computer audio cable (9'10",3 m), ø 2.5 –ø 3.5 mm wired remote control cable (6 Lens cap, CD-ROM, LCD projector operation manual, LCD projector quick guide, Sharp Advanced Presentation Software operation manual, ID number seal

Replacement parts

Standard lens unit (CLNS-0236CE01), Lamp unit (Lamp/cage module)(BQC-XGP20X//1), GyroRemote (RRMCG1631CESA for XG-P20XU, RRMCG1653CESA for XG-P20XE, CRMCG1654DE02 for XG-P20XD), AAA size batteries, Power cord (QACCU5013CEZZ, QACCL3022CEZZ, QACCV4002CEZZ, QACCB5024CENA), RGB cable (QCNW-5304CEZZ), USB mouse control cable (QCNW-5916CEZZ),Computer audio cable (QCNW-4870CEZZ), ø 2.5 –ø 3.5 mm wired remote control cable (QCNW-5943CEZZ), BNC-RCA adaptors (QPLGJ0107GEZZ), Air filter (PFILD0080CEZZ), Lens cap(PCAPH1056CESA), CD-ROM(UDSKA0043CEN1 for XG-P20XU, UDSKA0045CEN1 for XG-P20XE/XD), LCD projector operation manual (TINS-7354CEZZ for XG-P20XU, TiNS-7403CEZZ for XG-P20XE, TiNS-7409CEZZ for XG-P20XD), LCD projector quick guide (TINS-7355CEZZ for XG-P20XU, TiNS-7404CEZZ/TiNS-7405CEZZ for XG-P20XE, TiNS-7500CEZZ for XG-P20XD), Sharp Advanced PresentationSoftware operation manual (TINS-7356CEZZ for XG-P20XU, TiNS-7406CEZZ for XG-P20XE, TiNS-7407CEZZ for XG-P20XD), ID number seal (TLABZ0781CEZZ)

This SHARP projector uses LCD (Liquid Crystal Display)panels.These very sophisticated panels contain 786,432 pixels (×RGB)TFTs (Thin Film Transistors).As with any high technology electronic equipment such as large screen TVs,video systems and video cameras,there are certain acceptable tolerances that the equipment must conform to.

Specifications are subject to change without notice.

⁄64",15 cm), Three BNC-RCA adaptors, Extra air filter,

This unit has some inactive TFTs within acceptable tolerances which may result in illuminated or inactive dots on the picture screen.This will not affect the picture quality or the life expectancy of the unit. If you have any questions about this matter,please call toll free 1-888GO-SHARP (1-888-467-4277). U.S.A.ONLY

XG-P20XU

2 2

XG-P20XE XG-P20XD

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.

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 and other metal parts of the projector.

2. Inspect all protective devices such as non-metallic control knobs, insulating materials, cabinet backs, adjustment and compartment covers or shields, isolation resistor-capacity networks, mechanical insulators, etc.

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).

» 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.

» 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 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.

VOLTMETER

1.5k ohm (10W)

0.15µF

TEST PROBE

TO EXPOSED METAL PARTS

CONNECT TO KNOWN EARTH GROUND

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SAFETY NOTICE

Many electrical and mechanical parts in LCD 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 LCD 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.

XG-P20XU XG-P20XE XG-P20XD

NOTE TO SERVICE PERSONNEL

UV-RADIATION PRECAUTION

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

A VOID 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 RADIA TIONS UV

La source de lumière, la lampe métal halide, 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. Toujours 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 CLMPF0072DE02 or BQC-XGP20X//1 rated 85V/ 220W.

4. The lamp emits small amounts of UV-Radiation, avoid 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 avec 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 CLMPF0072DE02 ou BQC-XGP20XU//1 caractéristique 85V/220W.

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.

XG-P20XU

5 5

XG-P20XE XG-P20XD

234567890123456789012345678901212345678901234

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 devices since the stabilizer generates high voltages at its start.

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 duct cover and the lamp housing, it is recommended to place the LENS CAP on the opening during servicing to avoid eye and skin exposure (Fig. 1).

Note: Please obtain a lens cap before servicing a

models XG-P20XU/XE/XD that is received without one.

LENS CAP

Comme de petites quantités de radiation UV sont émises par une ouverture entre le couvercle du conduit et le botier de la lampe,il est recommandé de placer le CAPUCHON D'OPTIQUE sur l'ouverture pendant l'entretien pour éviter une exposition des yeux et la peau (Fig. 1).

Remarque: Priére de se procurer un capuchon

d'optique acant d'entretien un modéle XG-P20XU/XE/XD qui est livré sans.

CAPUCHON D'OPTIQUE

Figure 1.

XG-P20XU

XG-P20XE XG-P20XD

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,

NO USER-SERVICEABLE P ARTS EXCEPT LAMP UNIT.

CAUTION

(INLET Unit)

6.3A 250V

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DO NOT REMOVE CABINET.

REFER SERVICING TO QUALIFIED SERVICE

PERSONNEL.

CAUTION

For continued protection against a risk of fire, replace only with same type 6.3A 250V fuse. (F791)

(Active Filter Unit)

2A 250V

For continued protection against a risk of fire, replace only with same type P110A, ANZEN DENGU, 2A, 250V 117°C fuse.(TF701)

CAUTION

(BALLST Unit)

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.

For continued protection against a risk of fire, replace only with same type P110A, ANZEN DENGU, 2A, 250V 117°C fuse.(THP1701)

A VERTISSEMENT : Source lumineuse de grande intensité. Ne pas fixer le faisceau lumineux ou le regarder

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

A VERTISSEMENT : AFIN D’EVITER TOUT RISQUE D’INCENDIE OU D’ELECTROCUTION, NE P AS PLACER

CET APPAREIL DANS UN ENDROIT HUMIDE OU MOUILLE.

ATTENTION

RISQUE

D’ELECTROCUTION NE

PASRETIRER LES VIS, A

L’EXCEPTION DES VIS DE

REPARATION UTILISATEUR

SPECIFIEES

L’éclair terminé 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 RISQUE

D’ELECTROCUTION, NE PAS RETIRER LE CAPOT.

AUCUNE DES PIECES INTERIEURES N’EST REP ARABLE

PAR L’UTILISA TEUR, A L’EXCEPTION DE L’UNITE DE

LAMPE. POUR TOUTE REPARA TION, S’ADRESSER A UN

PRECAUTION

(Unite d’admission)

6,3A 250V

TECHNICIEN D’ENTRETIEN QUALIFIE.

PRECAUTION

Pour une protection continue contre les risques d’incendie, ne remplacer qu’avec un fusible 6,3A 250V du même type. (F791)

(Unité de filtration active)

2A 250V

Pour une protection continue contre un risques d’incendie, ne remplacer qu’avec un fusible P110A, ANZEN DENGU 2A 250V, 117°C du même type. (TF701)

PRECAUTION

(Unité de PUTSSANCE)

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

Pour une protection continue contre un risques d’incendie, ne remplacer qu’avec un fusible P110A, ANZEN DENGU 2A 250V, 117°C du même type. (THP1701)

XG-P20XU XG-P20XE XG-P20XD

Location of Controls

Projector

Front View

LAMP REPLACEMENT indicator

POWER indicator

POWER buttons (ON/OFF)

MUTE button

LENS button

INPUT 1,2,3,4,5 buttons

LEARN button

BLACK SCREEN button

ENTER button

Antenna

Lens shift dial

Speakers

Foot releases

TEMPERATURE WARNING indicator

GYRO RF indicator VOLUME buttons (-/+)

MENU button

AUTO SYNC button RESIZE button

GAMMA button UNDO button

ADJUSTMENT buttons ('/"/\/|)

Cooling fan (Exhaust vent)

Air filter/Cooling fan (Intake vent)

Rear View

INPUT 3 port (DVI)

Computer AUDIO INPUT 2/3 terminal

(ø 3.5 mm stereo minijack)

INPUT 1 port (15-pin Mini D-sub)

Computer AUDIO INPUT 1 terminal

(ø 3.5 mm stereo minijack)

INPUT 2 terminals (BNC)

RS-232C INPUT port/

RS-232C OUTPUT port

S-VIDEO INPUT 5 terminal

(4-pin Mini DIN)

VIDEO INPUT 4 terminal (RCA)

Cooling fan (Intake vent) Kensington Security

Standard connector Carrying handle

IR/Gyro switch WIRED REMOTE control input terminal (ø 3.5 mm stereo minijack) AUDIO OUTPUT terminal (ø 3.5 mm stereo minijack) OUTPUT port (15-pin Mini D-sub)for INPUT 1,2

USB port

AC socket

AUDIO INPUT 4/5 terminals (RCA)

Operating the Wireless Mouse Remote Control

Remote Control

XG-P20XU XG-P20XE XG-P20XD

Front View

Function

button (1)

INPUT button

LEFT-CLICK/

ENTER button

POWER button

LENS button

Function

button (3)

Function

button (4)

Gyration U.S.Patents 5698784,5825350,5898421

LED

Function button (2)

POINTER button

RIGHT-CLICK/ UNDO button

MENU button VOLUME/

-/+button ASSIGN Select

button

RF CH+ button

TEACH button

Rear View

GYRO ACTIVE button

Bottom View

Wired remote control input

Inserting and removing the batteries

Batteries are not pre-installed at the factory.When inserting batteries for the first time,follow steps 1,3 and 4 below.

Press in on the arrow

mark and slide in the direction of the arrow to remove the battery cover.

Battery

cover

Remove the two

234

upper batteries and pull the tapes to pick up two other batteries at the bottom of the compartment.

Battery

compartment

Insert four AAA size batteries, making sure the polarities match the +andmarks inside the battery compartment and the batteries are placed on the tapes.

Insert the side tabs of the battery cover into the slots and press the cover in until it is properly seated.

Battery

cover

XG-P20XU XG-P20XE XG-P20XD

Connection Pin Assignments

INPUT 1 RGB and OUTPUT (INPUT 1, 2) Signal Ports:

RGB Input

Analog

1.Video input (red)

2.Video input (green/sync on green)

3.Video input (blue)

4.Reserve input 1

5.Composite sync

6.Earth (red)

7.Earth (green/sync on green)

10 15

1 6 11

Component Input

Analog

1.PR (CR)

2.Y

3.PB (CB)

4.Not connected

5.Not connected

6.Earth (PR)

7.Earth (Y)

8.Earth (PB)

RS-232C Port:

9-pin D-sub male connector of the DIN-D-sub RS-232C cable

Pin No.

Signal

1 2 3 4 5 6 7 8 9

CD RD

ER SG DR

Name

Receive Data Send Data

Signal Ground Data Set Ready Request to Send Clear to Send

15-pin Mini D-sub female connector

8.Earth (blue)

9.Not connected

10.GND

11.GND

12.Bi-directional data

13.Horizontal sync signal

14.Vertical sync signal

15.Data clock

9.Not connected

10.Not connected

11.Not connected

12.Not connected

13.Not connected

14.Not connected

15.Not connected

I/O

Input

Output

Output Output

Input

Reference

Not connected Connected to internal circuit Connected to internal circuit Not connected Connected to internal circuit Output Not connected Output Connected to internal circuit Connected to internal circuit Not connected

INPUT 3 DVI Port:

•*1 Return for +5 V,Hsync.and Vsync.

•*2 Analog R,G and B return

•*3 These pins are not used on this equipment.

29-pin

8 1 9

C4C32417

Pin No.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 C1 C2 C3 C4 C5

Name

T.M.D.S.Data 2T.M.D.S.Data 2+ T.M.D.S.Data 2/4 Shield T.M.D.S.Data 4- *3 T.M.D.S.Data 4+ *3 DDC Clock DDC Data Analog Vertical Sync T.M.D.S.Data 1T.M.D.S.Data 1+ T.M.D.S.Data 1/3 Shield T.M.D.S.Data 3-*3 T.M.D.S.Data 3+*3 +5 V Power Ground*1 Hot Plug Detect T.M.D.S.Data 0T.M.D.S.Data 0+ T.M.D.S.Data 0/5 Shield T.M.D.S.Data 5- *3 T.M.D.S.Data 5+ *3 T.M.D.S.Clock Shield T.M.D.S.Clock+ T.M.D.S.ClockAnalog Red Analog Green Analog Blue Analog Horizontal sync Analog Ground*2

Dimensions

XG-P20XU XG-P20XE XG-P20XD

Rear View

Side View

Front View

(438)

/ 8 (3)

/ 32 (7)

(65)

12 9 /16 (319)

/32 (23)

(423)

/64 (3.5)

Side ViewTop View

6 3 /32 (155)

(79)11

(282.5)

1 3 /64 (26.5)

Bottom View

/ 64 (116.5)

/4 (248)

/32 (34)

Units: inches (mm)

XG-P20XU XG-P20XE XG-P20XD

REMOVING OF MAJOR PARTS

1.Removing the top cover and lens cover.

1-1. Remove the two screws and detach the lens cover. 1-2. Hold the lens top cover and tilt it up until its back end alone stays hooked. Then slide and detach the top cover.

Detach the lens shutter. (When attaching the lens shutter back in position, match the left (L) and right (R) markings.)

Top Cover

Lens Shutter

Lens Cover

2.Removing the Intake cover and lamp unit.

2-1. Detach the intake cover. 2-2. Loosen the screw and slide the lamp cover out of position. 2-3. Remove the three screws and lift the lamp unit out of position.

3.Removing the rear body.

3-1. Remove the six screws off the terminal board at the back. 3-2. Remove the six screws and detach the rear body.

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3-2

Lamp Unit

2-3

2-1

Intake Cover

2-2

3-1

Lamp Cover

Rear Body

3-2

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4.Removing the top panel.

4-1. Remove the five screws. 4-2. Remove the four screws. 4-3. Press on both sides of the set and undo the hooks. Lift the top body with lens shift knob and disconnect the

two connectors.

4-1

Lens Shift Knob

4-2

Top Body

4-1

4-3

4-1

4-3

5.Removing the PWB unit.

5-1. Undo the top hooks and detach the GYRO PWB. 5-2. Disconnect the connectors from the GYRO PWB. 5-3. Remove the five screws and detach the PC I/F unit. 5-4. Disconnect the five connectors. 5-5. Remove the two screws and detach the output sub-PWB. 5-6. Disconnect the twelve connectors. 5-7. Take out the hexagonal supports. 5-8. Remove the three screws and detach the output/input PWB assembly.

(FF)(FD)(LF)(F)

5-6

(AZ)

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5-3

GYRO PWB

5-8

(RP)

(BP)

(SO) (Q)

(GP)

Output/Input PWB Ass'y

5-7

5-5

PC I/F Unit

5-4

(FE)

(EA)

(D)(FR)

Output Sub PWB

(GP)

5-2

5-1

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Reassembling precautions

5-9. Fit part a of the input PWB to the slit of the bottom cover. 5-10.Align the input PWB’s shield with the top of the AC inlet shield (b). 5-11.Before tightening up the screws (5-7) as well as the screws and hex nuts (5-8), move the PWB unit forward

enough (c).

PWB Unit Ass'y

6.Removing the power / ballast / sound-out / bimetal unit assembly.

6-1. Remove the screw and disconnect the grounding wire from the shield case of the power/ballast unit. 6-2. Disconnect the connectors from the sound out PWB. 6-3. Take out the bimetal socket. 6-4. Remove the two screws and detach the lamp socket. 6-5. Remove the three screws and detach the power unit. 6-6. Remove the screw and slide the bimetal assembly upward out of position.

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Power/Ballast Unit

Sound Out PWB

6-2

6-5

6-1

6-3

6-6

Bimetal Ass'y

6-4

6-3

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7.Removing the optical mechanism unit

7-1. Remove the two screws off the optical mechanism intake fan. 7-2. Remove the eight screws and take out the optical mechanism unit. 7-3. Remove the screw and disconnect the grounding wire. 7-4. Disconnect the connector and detach the AC inlet unit.

7-2

Optical Mechanism Unit

7-2

7-1

7-3

7-4

AC Inlet Unit

Resetting the TOTAL LAMP TIMER

Resetting the lamp timer

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Connect the power

cord.

Plug the power cord into the AC socket of the projector.

•Reset the lamp timer only after replacing the lamp.

Reset the lamp timer.

While pressing ",| and

ENTER on the projector,press POWER ON on the projector.

“LAMP 0000H ” is displayed, indicating that the lamp timer is reset.

LAMP 0000H

• As the usage environment can vary significantly, the projector lamp may not operate for 1,500 hours.

Maintenance Indicator

TEMPERATURE WARNING indicator

LAMP REPLACEMENT indicator

POWER indicator

The internal temperature is abnormally high.

The lamp does not light up.

The POWER indicator flashes in red when the projector is on.

Condition

· Blocked air intake.

· Clogged air filter.

· Cooling fan breakdown.

· Internal circuit failure.

· Burnt-out lamp.

· Lamp circuit failure.

· The bottom filter cover is open.

Problem

Possible Solution

· Relocate the projector to an area with proper ventilation.

· Clean the filter.

· Take the projector to your nearest Authorized Sharp Industrial LCD Products Dealer or Service Center for repair.

· Carefully replace the lamp.

· Take the projector to your nearest Authorized Sharp Industrial LCD Products Dealer or Service Center for repair.

· Securely install the bottom filter cover.

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THE OPTICAL UNIT OUTLINE

Layout of the optical system

Note: Layout for positioning the optical system.

Projection Lens

1/2λ plate

Sapphire glass Polarizing plate

Incident polarizing plate B

1/2λ plate + polarizing plate

Sapphire glass Polarizing plate

Incident polarizing plate R

Dichroic coating (B transmission)

BLUE

AL-coated mirror B

G03 L2

Relay lens 1

Relay lens 2

G02 L2

AL-coated mirror B

AL-deposited face

B-LCD

Cross dichroic prism

G-LCD

Incident polarizing plate G

Marking

G01

Relay lens 1

UV-absorption-filter

Condenser lens G

GREEN

BLUE

G reflector

* M3

Dichroic coating

R-LCD

1/2λ plate

Sapphire glass Polarizing plate

Dichroic coating (R, G transmission)

Dichroic coating

PBS(polarization beam splitter)

(R transmission)

Condenser lens R

Marking

AL-coated mirror R

AL-deposited face

RED

(R reflection)

B/G reflector

* The M3 mirrors have a coating

wedge (for different film thickness). Set up these mirrors, with their markings positioned as shown above, so that their coated faces and both sides be in the correct directions.

UHP lamp

(Light source)

AL-deposited face

PBS aperture

Fly-eye lens (outgoing light)

UV-IR coating

Fly-eye lens (incoming light)

AL-coated mirror W

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CONVERGENCE AND FOCUS ADJUSTMENT

» Start the convergence and focus adjustments with the top cabinet and the LCD cover

removed but the power on. Use the remote control to adjust the image. Take the following procedures.

1. Focusing the projection lens

(A) Replacing all the 3 LCD panels

1. Before replacing all the 3 LCD panels, project an image on the screen and bring it into focus.

2. Replace the panels with new ones. But until the focus has been completely readjusted, be careful not to change the distance between the set and the screen, nor to move the projection lens focus and zoom rings. If the focus is readjusted with a different positional relation, the relation between the projection distance and the screen size is affected. In other words, a short-distance image (40 WIDE, for example) may get out of the focus range, or a long-distance image (300 WIDE, for example) may come out of focus.

(B) Replacing 1 or 2 of the 3 LCD panels

1. In adjusting the focus after replacement of one or two LCD panels, project an image on the screen and turn the projection lens focus ring to get the non-replaced LCD panel into focus.

2. But until the focus has been completely adjusted for the new LCD panels, be careful not to change the distance between the set and the screen, nor to move the projection lens focus and zoom rings. (If the distance has been changed or the projection lens readjusted, repeat the above steps 1 and 2.)

2. Adjusting the G-LCD panel

(A) Focus adjustment. (Make this adjustment on the white-only screen.)

1. Right-and-left focus adjustment (θY direction) . Loosen the lock screws "b" and "c" and insert the eccentric screwdriver into the notch and hole "b". Turn the screwdriver until the right and left halves on the screen get into focus. First get the right and left halves in balance. Then improve the accuracy while making the adjustment 2 below.

2. Top-center-bottom focus adjustment (θX and Z directions). Loosen the lock screws "a" and "c" and insert the eccentric screwdriver into the notch and hole "a" or "c". Turn the screwdriver until the top, center and bottom on the screen get into focus. In adjusting this top-tobottom focus, temporarily tighten the lock screw "b" to fix the θY direction adjustment.

3. Repeat the above steps 1 and 2 to finely adjust the focus. Finally tighten up all the lock screws.

Notes :

1 Carefully proceed with the focus adjustment because the adjusting directions are correlated. 2 In adjusting the convergence and focus, do not move the projection lens zoom and focus rings until the end

of all the adjustments.

(B) Convergence adjustment

» The G-LCD panel has no convergence adjustment mechanism. Use this panel as convergence adjustment

reference.

3. B-LCD panel adjustment (the same for the R-LCD panel)

(A) Focus adjustment

» T ake the same procedure as for the G-LCD panel focus adjustment. Note that the adjustment range is small

in the Z direction. If the convergence is quite different between the B-LCD and G-LCD panels, roughly adjust the convergence first and then the focus.

(B) Convergence adjustment

» Use a crosshatch pattern signal for this adjustment.

Make the adjustment just for the G-color and the relevant color. (1) Loosen the convergence lock screw "d". (2) With the G-LCD panel’s screen center as reference, adjust the B-LCD panel in the X, Y and θZ directions. (3) Finally tighten up the convergence lock screw "d".

XG-P20XU XG-P20XE XG-P20XD

Notes :

1 The eccentric cam is used for convergence adjustment. This means that the cam’s turning and the linear

movement are not always uniform.

2 This model is not equipped with the LCD image adjustment mechanism. This is because the dichroic prism

is used for image formation. When the LCD panels all get into the best focus, the images are almost completely converged.

Convergence and Focus Adjustments Mechanism

TOP VIEW

Lock screw "a"

Notch and hole "a" (Use an eccentric screwdriver.)

FRONT

R-LCD

B-LCD

θY

Lock screws "c"

Notch and hole "c" (Use an eccentric screwdriver.)

Notch and hole "b" (Use an eccentric screwdriver.)

G-LCD

Lock screw "b" (θY direction)

Notch and hole "c" (Use on eccentric screwdriver.)

SIDE VIEW

G-LCD panel mounting screws

θY

G-LCD

G adjusting plate

SIDE VIEW (from inside)

Eccentric cam (X direction adjustment)

Eccentric cam (Y direction adjustment)

R¥B adjusting plate

R¥B-LCD

SIDE VIEW (from outside)

Eccentric cam (θZ direction adjustment)

Lock screw "d" (convergence adjustment)

θZ

R¥B-LCD

R¥B adjusting plate

R¥B-LCD panel mounting screws

Convergence and Focus Adjustments at a Glance

CUT

Adjustment directions

Adjustment Direction Definition Direction of LCD panel

X direction LCD right and left

Convergence Y direction LCD top and bottom

θZ direction Rotation around Z axis LCD turning axis Z direction LCD optical axis

Focus θX direction Rotation around X axis LCD top-to-bottom flapping

θY direction Rotation around Y axis LCD right-to-left flapping

Convergence and Focus Adjustment for the Optical Mechanism

XG-P20XU XG-P20XE XG-P20XD

Color Adjustment Direction

X direction ±0.8mm Eccentric cam Eccentric cam adjusting wrench d Hex wrench

Convergence Y direction ±0.8mm Eccentric cam Eccentric cam adjusting wrench d Hex wrench

R/B θZ direction ±1° Eccentric cam Eccentric cam adjusting wrench d Hex wrench colors Z direction ±0.8mm

Focus θX direction ±1°

θY direction ±1° Z direction ±0.2mm

G color Focus θX direction ±1° Same as for R and B colors

θY direction ±1°

Movement

Position Adjusting tool

Notch and hole "a" & "c" Notch and hole "a" & "c" Notch and hole "b" & "c"

Eccentric screwdriver, a, c

Lock screw

a, c b, c

Tightening tool

Phillips screwdriver, *Hex wrench

Focus Adjustments the Other Way

Lock screw Position Related direction

a Notch and hole "a" Z and θX directions b Notch and hole "b" θY direction c Notch and hole "c" Z, θX and θY directions

Convergence and Focus Adjusting and Tightening Tools

Tool Specific or General Tool code Configuration

Eccentric cam Specific 9DASPN-XGNV1U adjusting wrench

Eccentric screwdriver Specific 9EQDRiVER-NV1A

100

Hex wrench General (redesigned) 9EQLNC-XGNV1U

Phillips screwdriver General — For M2.6 pan-head machine screw *Hex wrench General —

Preferably use a 70 mm or longer screwdriver (with a handle).

XG-P20XU XG-P20XE XG-P20XD

Replacing the G-LCD and B-LCD panels

With the top cabinet removed

(1)Disconnect the LCD flat cable from the output PWB connector. (2)Remove the lock screws "b" and "c". Detach the R/B adjusting plate or the G adjusting plate together with the LCD

panel. (3)Separate the LCD panel from the adjusting plate. (4)Mount a new LCD panel in the reverse order of the above steps (1), (2) and (3).

~ Readjust the convergence and focus. Note that the G LCD panel needs no convergence adjustment and has

a small adjustment range in the Z direction.

TOP VIEW

Lock screws "c"

R-LCD

FRONT

SIDE VIEW

Lock screws "c"

Lock screws "b"

G-LCD

θY

B-LCD

Lock screws "c"

SIDE VIEW

G adjusting plate

G-LCD

B-LCD

B adjusting plate

B-LCD panel mounting screws

G-LCD panel

mounting screws

θZ

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Replacing the R-LCD panel

(1)Disconnect the LCD flat cable from the output PWB connector.

(2)Remove the two screws "A". (3)Lift and detach the plate "B" together with the incident light deflection plate.

(4)Remove the four screws "C" and separate the units D and E from each other. (5)Take the R-LCD panel out of the adjusting plate. (6)Place and fix a new R-LCD panel in the reverse steps. (7)Adjust the deflection plate. (See page 26). (8)Adjust the focus and convergence. (See page 21.)

~ Readjust the convergence and focus. Note that the G LCD panel needs no convergence adjustment and has

a small adjustment range in the Z direction.

Fig.1

Fig.2

SIDE VIEW

R-LCD

R adjusting plate

R-LCD panel mounting screws

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Adjusting the optical axis of the mirrors (M1, M5 and M6)

The optical axis must be readjusted if an eclipse happens with the R. G or B mirrors. Generally speaking, this adjustment is needed when any of the internal optical components has been replaced.

Adjustment procedure required when any of the panels has been replaced or the convergence has been adjusted

(1)Disconnect the flat cables of all the LCD panels. (2)Let the lamp light up. (3)To adjust the G mirror, shield the R and B mirrors with shielding plates (You can use a business card or the like to

block the light). (4)Loosen the lock screw of the M1 adjust lever. (5)Looking at the G image on the screen, turn or slide the M1 adjust lever until the eclipse on the screen disappears.

Tighten up the screw. (6)To adjust the R mirror, shield the G and B mirrors and adjust the M5 adjust lever. For the B mirror , shield the R and

G mirrors and adjust the M6 adjust lever.

(Take the same steps 4 and 5 above.) (7)Remove all the shielding plates to have a white image.

Make sure there is no eclipse.

Lock screws

Shielding plate B

adjust lever

slide

turn

FRONT

Shielding plate R

Shielding plate G

adjust lever

Lock screws

turn

slide

turn

adjust lever

Lock screws

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Adjusting the lamp duct.

Lock screws

Lamp duct

Adjustment procedure reguired when the lamp has been replaced and you can see ununifomity. (Case of Right and Left have ununifomity on the screen)

(1) Let the lamp light up. (2) Receive the white pattern signal at 100%. (3) Loosen the four lock screws from the lamp duct. (4) Looking at the white image on the screen, turn the lamp duct until the uniformity comes to best point on the screen. (5) Tighten the lock screws of the lamp duct. (Tighten torque is 10±2kg·cm)

Adjustment of incident polarizing plate.

Carry it out when removing polarizingplate.

Screw C

Notch & Hole C

Notch & Hole B

Screw A Notch & Hole A

Screw B

(From the condition that the top cabinet opens.)

1.Remove screws, earth plate from the output PWB.

2.Extend each FFC cable of R, G, B (Using QCNW-4852CEZZ) and try so that it can move a PWB so that it can see the part which adjusts polarizing plate from the top.

3.Turn on the power, and indicate a black screen on the screen.

4.Move an output PWB so that you can see screw B and notch & hole B.

5.Put an eccentric screwdriver (9EQDRIVER-NV1A) in notch & hole B, and loosen screw B. (Loosen it too much, and be careful that the screw doesn't come off.)

6.Adjust with the eccentric screwdriver in the place where a brightness is the lowest, and tighten screw B, and fix it with seeing a black screen. Adjust it with screw A and notch & hole A when adjusting incident polarizing plate of R-LCD. Adjust it with screw C and notch & hole C when adjusting incident polarizing plate of B-LCD.

❈Adjust it in the turn of Green, Red, Blue with 3 place of RGB as well when adjusting it. ❈Be careful not to make it short-circuit when moving an output PWB.

Color adjustment

Red

Green

Blue

polarizing plate adjustment polarizing plate adjustment polarizing plate adjustment

Adjustment directionAmount of adjustment. Adjustment place form

θ direction ±1° Notch & Hole A θ direction ±1° Notch & Hole B θ direction ±1° Notch & Hole C

Ajdustment jig Fixing screw Fixed screw tool. eccentric screwdriver eccentric screwdriver eccentric screwdriver

A Phillips screwdriver B Phillips screwdriver C Phillips screwdriver

XG-P20XU XG-P20XE XG-P20XD

ELECTRICAL ADJUSTMENT

Hook up a signal generator, or a DOSV or Mac personal computer to the projector in order to feed the signals specified in the Adjusting conditions.

No. Adjusting point Adjusting conditions Adjusting procedure

1 EEPROM

initialization

1. Turn on the power (make sure the lamp lights up) and warm up the unit for 15 minutes.

» Make the following settings:

Press S2601 to call up the process mode and execute S2 and S4 in the SSS menu. Now the system, with the PC board not included, is initialized. Do not execute S1 because otherwise the PC board will be initialized. To adjust the PC board, follow the instruction in "Adjusting the PC Interface". (See page 34)

2 R drive 1. Make the following choice.

Group : A/D

2. Feed the 100% red-only signal. Make the following choice. Group : A/D Subject : R-D

3 B drive 1. Feed the 100% blue-only

signal. Make the following choice. Group : A/D Subject : B-D

4 G drive 1. Feed the 100% green-only

signal. Make the following choice. Group : A/D Subject : G-D

» Using the control switches or the remote controller

buttons, adjust the data so that the signal becomes bit-less (noise).

» Using the control switches or the remote controller

buttons, adjust the data so that the signal becomes bit-less (noise).

» Using the control switches or the remote controller

buttons, adjust the data so that the signal becomes bit-less (noise).

5 RGB 1 system

black level signal amplitude (odd-numbered)

1. Make the following choice: Group : OUTPUT 1 Subject : G1-BLK

G1-GAIN

For green, choose the sub-

jects R1-BLK and R1-

GAIN. For blue, choose the subjects B1-BLK and B1-GAIN.

2. Connect the oscilloscope to TP1101 for red.

TP1201 for green TP1301 for blue

» Choose the subject G1-GAIN and adjust the sig-

nal amplitude to 3.9 ±0.05 Vp-p using the control switches or the remote controller buttons.

» Next, choose the subject G-BLK and adjust the

white peak level to 2.0Vp-p ±0.1V.

2.0Vp-p

» Make the same adjustments for green and blue.

3.9Vp-p

No. Adjusting point Adjusting conditions Adjusting procedure

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6 P SIGNAL 1. Connect the oscilloscope to

TP1102 for red.

2. Make the following choice: Group : OUTPUT 2 Subject : PSIG-H

: PSIG-L

7 Sample-and-

hold pulse phase RCK-PHASE GCK-PHASE BCK-PHASE

1. Feed the XGA mode 75-Hz black signal.

2. Make the following choice: Group : OUTPUT 3 Subject : SH-PHASE (Have the standard level at

8.) Fix the GCK-PHASE settings all to 8.

» Adjust the PSIG waveform to the one shown below.

PSIG

2.5V DC 5.0V DC

(Adjust with PSIG-L.)(Adjust with PSIG-H.)

GND

» For the green and blue colors, make sure their wave-

forms are similar to that of the red color.

» Using the control switches or the remote controller

buttons, make sure that the “OUTPUT 3” characters are not blurry and there is no ghost image. If such blur or ghost occurs, finely adjust the setting in the range of 7~9.

8 RGB counter-

voltage adjustment

9 RGB gradation

regeneration adjustment

1. Feed the black-and-red (25%) stripe signal (XGA).

2. Make the following choice: Group : OUTPUT 3 Subject : RC (R)

: BC (B) : GC (G)

1. Feed the INFO COM. gray scale and color bar pattern.

2. Make the following choice: Group : OUTPUT 1 Subject : G1-BLK

» Using the control switches or the remote controller

buttons, adjust the data in order to minimize the flicker.

» Make the same adjustment for BC (B) and GC (G). » See if the image is equally adjusted at the center

and both sides of the screen. If not, readjust the setting to have the image equal at right and left.

» Make sure that scale (white side) to No.251 and

scale (black side) to No.8 can be seen.

» If white scale can't be seen properly, readjust with

G1-BLK.

4812

249 251

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2.2Vp-p

XG-P20XE XG-P20XD

No. Adjusting point Adjusting conditions Adjusting procedure

10 RGB white

balance

1. Feed the 32-step gray scale signal (XGA 60Hz). Group : OUTPUT 1 Subject : R1-BLK (R)

R1-GAIN(R)

» Adjust the R1-BLK and B1-BLK data for the black

balance on the gray scale. Then adjust the R1GAIN and B1-GAIN data for the center-to-white balance on the gray scale.

(Adjust to the best point.) B1-BLK (B) B1-GAIN(B)

11 Horizontal

center

12 Video

brightness adjustment

13 Video picture

adjustment

1. Feed the NTSC monoscope pattern signal.

2. Group : VIDEO 1 Subject : NTSC-H

1. Feed the baseband (0 step gray scale :0% Black to 100% White) signal. Group : VIDEO 1 Subject : BRIGHT

2. Press the control switch or the remote control’s mute button (to set the gamma correction to the process setting).

1. Feed the split color bar signal. Group : VIDEO 1 Subject : PICTURE

» Using the control switches or the remote controller

buttons, adjust the data to have the same overscan.

» Using the control switches or the remote controller

buttons, adjust the setting until the black signal (0%) becomes bit-less.

» Using the control switches or the remote controller

buttons, adjust the white to white (100%) level difference to 2.2 ± 0.05 Vp-p.

14 Tint

2. Connect the oscilloscope between pin TP1201and GND.

1. Feed the split color bar signal. Group : VIDEO 1 Subject : TINT

2. Connect the oscilloscope to TP1301.

» Using the control switches or the remote controller

buttons. Adjust the setting so that the points indicated in the waveform figure are at the same level.

SAME LEVEL

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