Sharp xgp25x schematic

XG-P25X

SERVICE MANUAL
SERVICE-ANLEITUNG

S62L5XG-P25X/

LCD PROJECTOR
LCD PROJEKTOR

MODEL
MODELL

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 Teile verwendet
werden.

XG-P25X

SHARP CORPORATION

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

XG-P25X

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

• IMPORTANT SERVICE SAFETY

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

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

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

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

• RESETTING THE TO TAL LAMP TIMER ......... 19

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

• CONVERGENCE AND FOCUS

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

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

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

• CHASSIS LAYOUT ........................................ 110

CONTENTS

Page Page

• BLOCK DIAGRAM......................................... 112

• OVERALL WIRING DIAGRAM ...................... 114

•

DESCRIPTION OF SCHEMATIC DIAGRAM ..

• WAVEFORMS ................................................ 117

• SCHEMATIC DIAGRAM ................................ 118

• PRINTED WIRING BOARD ASSEMBLIES... 166

• PARTS LIST

Ë

ELECTRICAL PARTS............................... 173

Ë

CABINET AND MECHANICAL PARTS.... 193

Ë

ACCESSORIES PARTS........................... 198

Ë

PACKING PARTS ..................................... 198

• PACKING OF THE SET ................................. 199

116

Seite Seite

• TECHNISCHE DATEN..................................... 58

• HINWEISE FÜR DAS

WARTUNGSPERSONAL................................. 59

• BEDIENUNGSANLEITUNG ............................ 60

• ENTFERNEN DER HAUPTTEILE ................... 64

• RücKSTELLEN DES

LAMPENBETRIEBSZEIT-TIMERS ................. 71

• ÜBERSICHT DER OPTIK-EINHEIT ................ 72

• EINSTELLUNG VON KONVERGENZ UND

BRENNPUNKT ................................................ 73

• ELEKTRISCHE EINSTELLUNG...................... 80

• FEHLERSUCHTABELLE ................................. 88

• CHASSIS-ANORDNUNG .............................. 110

• BLOCKSCHALTBILD ..................................... 112

INHALT

• GESAMTSCHALTPLAN ................................ 114

• BESCHREIBUNG DES SCHEMATISCHEN

• WELLENFORMEN ........................................ 117

• SCHEMATISCHER SCHALTPLAN................ 118

• LEITERPLATTENEINHEITEN ....................... 166

• ERSATZTEILLISTE

• VERPACKEN DES GERÄTS......................... 199

SCHALTPLANS ............................................. 116

Ë

ELEKTRISCHE BAUTEILE...................... 173

Ë

CEHÄUSE UND MECHANISCHE

BAUTEILE ................................................ 193

Ë

ZUBEHÖRTEILE...................................... 198

Ë

VERPACKUNGSTEILE ............................ 198

2

Specifications

XG-P25X

Product type

Video system

LCD Projector

Model

XG-P25X
PAL/PAL 60/PAL-M/PAL-N/SECAM/NTSC 3.58/NTSC 4.43
DTV 480I/480P/580I/580P/720P/1035I/1080I

Display method

LCD panel

LCD panel × 3, RGB optical shutter method
Panel size: 1.3″ (33mm) (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

Video input signal

1–1.3 × zoom lens, F1.7–2.4, f = 49.2–63.8 mm
AC 270 W lamp
RCA Connector (INPUT 4): 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 (INPUT 5)
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

B

: 0.7 Vp-p, 75Ω terminated

P
P

R

: 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)

PIN MINI

D-

15-

SUB CONNECTOR

(INPUT 1), 5 BNC

CONNECTOR

(INPUT 2):
RGB separate/composite sync/sync on gr een type analog input: 0–0.7 Vp-p, positive,
75Ω terminated

Pixel clock

Ver tical frequency

Horizontal frequency

Computer contr ol signal

Speaker system

CONNECTOR

DVI

ORIZONTAL SYNC.SIGNAL

H

ERTICAL SYNC.SIGNAL

V

TEREO MINIJACK

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

49

⁄64 (4.5 cm) round × 2

1

(29-

PIN

) (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

Heat dissipation

Operating temperature

Storage temperature

Cabinet

I/R carrier frequency

Dimensions (approx.)

AC 100–240 V

3.9 A
50/60 Hz
380 W
1,430 BTU/hour
41°F to 104°F ( 5°C to 40°C)

++

-4°F to 140°F (- +20°C to 60°C)
Plastic
38 kHz

9

⁄16" (W) × 63⁄32" (H) × 1621⁄32" (D) (319.0 × 155.0 × 423.0 mm) (main body only)

12

11

12

⁄32" (W) × 727⁄64" (H) × 1717⁄32" (D) (322.5 × 188.5 × 445.0 mm) (including standard

lens, adjustment feet and projecting par ts)

Weight (approx.)

Supplied accessories

21.4 lbs. (9.7 kg)
Remote control, Two R-6 batteries, Power cord, RGB cable (9' 10", 3 m), Computer audio
cable (9' 10", 3 m), Three BNC-RCA adaptors, Extra air filter, Lens cap, CD-ROM, LCD
projector operation manual, Quick reference guides, ID number seal

Replacement parts

Lamp unit (Lamp/cage module) (BQC-XGP25X//1), Remote contr ol (RRMCGA048WJSA),
Two R-6 batteries (“AA” size, UM/SUM-3, HP-7 or similar), Power cord for U.S., Canada
etc. (QACCDA010WJPZ), Power cord for Europe, except U.K. (QACCV4002CEZZ), Power
cord for U.K., Hong Kong and Singapor e (QACCBA012WJPZ), Power cord for Australia,
New Zealand and Oceania (QACCL3022CEZZ), RGB cable (QCNWGA012WJPZ),
Computer audio cable (QCNWGA013WJPZ), BNC-RCA adaptors (QPLGJ0107GEZZ), Air
filter (PFILD0080CEZZ), Lens cap (PCAPH1056CESA), CD-ROM (UDSKAA004WJZZ,
UDSKAA005WJZZ), LCD projector operation manual (TINS-A133WJZZ), Quick reference
guides, Sharp Advanced Presentation Software installation guide (TINS-A139WJZZ), ID
number seal (TLABZ0781CEZZ)

* When the RGB input is used for displaying moving images r eceived as interlaced image signal, the images may not be displayed as you

intended depending on the type of the signal. Please use the component input, video input, or s-video input in case this happen s.

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

×

RGB) TFTs (Thin

This unit has some inactive TFT s within acceptable tolerances which
may result in illuminated or inactive dots on the picture scr een. This
will not affect the picture quality or the life expectancy of the unit.

Specifications are subject to change without notice.

3

XG-P25X

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.

BEFORE RETURNING THE PROJECTOR:
(Fire & Shock Hazard)

Before returning the projector to the user, perform
the following safety chec ks:

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 v oltage
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.

AC

VOLTMETER

1.5k ohm (10W)

0.15µF

TEST PROBE

TO EXPOSED
METAL PARTS

CONNECT TO KNOWN
EARTH GROUND

234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121

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.

234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121

AVERTISSEMENT:La composante bimétallique dispose du

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

4

XG-P25X

NOTE T O 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 ser vicing the
projector with the lamp
turned “on” and the top
enclosure removed.

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

NO TE POUR LE PERSONNEL
D’ENTRETIEN

PRECAUTION POUR LES RADIATIONS 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 por ter 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
CLMPFA002DE02 or BQC-XGP25X//1 rated 80V/
270W.

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 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
CLMPFA002DE02 ou BQC-XGP25X//1
caractéristique 80V/270W.

4. La lampe émet de petites quantités de radiation UV ­éviter 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.

5

XG-P25X

4

5

UV-RADIATION PRECAUTION (Continued)

23456789012345678901234567890121234567890123

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

1

Reflector

2

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.

PRECAUTION POUR LES RADIATIONS UV (Suite)

234567890123456789012345678901212345678901234

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.]

1

Lampe

2

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-P25X 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-P25X qui est livré sans.

CAPUCHON D'OPTIQUE

Figure 1.

Figure 1.

6

XG-P25X

WARNING: High brightness light source, do not stare into the beam of light, or view directl y . 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 REMO VE SCREWS

EXCEPT SPECIFIED USER

SERVICE SCREW

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,

NO USER-SERVICEABLE PARTS EXCEPT LAMP UNIT.

CAUTION

(INLET Unit)

6.3A 250V

DO NOT REMO VE CABINET.

REFER SERVICING T O QU ALIFIED SERVICE

PERSONNEL.

CAUTION

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

(POWER 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

(BALLAST 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)

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

directement. Veiller 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 PAS PLACER

CET APPAREIL DANS UN ENDROIT HUMIDE OU MOUILLE.

ATTENTION

RISQUE
D’ELECTR OCUTION NE
PASRETIRER LES VIS, A

L’EXCEPTION DES VIS DE

REPARATION UTILISATEUR

SPECIFIEES

ATTENTION: POUR EVITER TOUT 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

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 NETZ)

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)

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
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)

7

XG-P25X

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

FREEZE button

BLACK SCREEN button

ENTER button

Lens shift dial

Speakers

Foot releases

TEMPERATURE WARNING
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

(ø3.5 mm stereo minijack)

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

Computer AUDIO INPUT 1 terminal

(ø3.5 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

WIRED REMOTE control
input terminal
(ø3.5 mm stereo minijack)

AUDIO OUTPUT terminal
(ø3.5 mm stereo minijack)

OUTPUT port (15-pin Mini
D-sub) for INPUT 1, 2

AC socket

AUDIO INPUT 4/5
terminals (RCA)

8

Operating the Wireless Mouse Remote Control

Remote Control

XG-P25X

Front View

LENS button

ENTER button

UNDO button

ENLARGE buttons

AUTO SYNC button

GAMMA button

INPUT 1 button

POWER buttons (ON/OFF)

MENU button

|

|

Adjustment ( / / / )
buttons

FREEZE button

BLACK SCREEN button
INPUT 3 button

|

|

T op View

INPUT 2 button
INPUT 4 button

VOLUME ( / )

-+

buttons

RESIZE button
INPUT 5 button
MUTE button

BREAK TIMER button

Wired RC jack (ø3.5 mm minijack)

9

XG-P25X

Connection Pin Assignments

INPUT 1 RGB and OUTPUT (INPUT 1, 2) Signal Ports: 15-pin Mini D-sub female connector

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

5

1
6
11

Component Input

Analog

1. P

R

(CR)

2. Y

3. P

B

(CB)

4. Not connected

5. Not connected

6. Earth (P

7. Earth (Y)

8. Earth (P

R

)

B

)

RS-232C Port: 9-pin D-sub male connector

15

69

Pin No. Signal Name I/O Reference

1 CD Not connected
2 RD Receive Data Input Connected to internal circuit
3 SD Send Data Output Connected to internal circuit
4 ER Not connected
5 SG Signal Ground Connected to internal circuit
6 DR Data Set Ready Not connected
7 RS Request to Send Output Connected to internal circuit
8 CS Clear to Send Input Connected to internal circuit
9 CI Not connected

RS-232C Cable recommended connection: 9-pin D-sub female connector

5

1

6

9

Signal SignalPin No. Pin No.

1
2
3
4
5
6
7
8
9

CD
RD
SD
ER
SG
DR
RS
CS
CI

1
2
3
4
5
6
7
8
9

CD
RD
SD
ER
SG
DR
RS
CS
CI

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

• Depending on the system layout, it is necessary to connect Pin 4 and Pin 6 on the controlling device (e.g. PC).

Projector

Pin No.PCPin No.

4
5
6

INPUT 3 DVI Port: 29-pin

C1C2

91 816

4
5
6

Pin No. Name

1 T.M.D.S. Data 2
2 T.M.D.S. Data 2
3 T.M.D.S. Data 2/4 Shield
4 T.M.D.S. Data 4 *
5 T.M.D.S. Data 4 *
6 DDC Clock
7 DDC Data
8 Analog Vertical Sync

9 T.M.D.S. Data 1
10 T.M.D.S. Data 1
11 T.M.D.S. Data 1/3 Shield
12 T.M.D.S. Data 3 *
13 T.M.D.S. Data 3 *
14 5 V Power
15 Ground*

1

Pin No. Name

16 Hot Plug Detect
17 T.M.D.S. Data 0

3
3

3
3

18 T.M.D.S. Data 0
19 T.M.D.S. Data 0/5 Shield
20 T.M.D.S. Data 5 *
21 T.M.D.S. Data 5 *
22 T.M.D.S. Clock Shield
23 T.M.D.S. Clock

24 T.M.D.S. Clock
C1 Analog Red
C2 Analog Green
C3 Analog Blue
C4 Analog Horizontal sync
C5 Analog Ground*

C32417 C4

C5

• *1 Return for 5 V, Hsync. and Vsync.

2

• *

Analog R, G and B return

3

• *

These pins are not used on this equipment.

10

3
3

2

Dimensions

XG-P25X

Rear View

Side View

Front View

(445)

32

/

17

17

(4.5)

16

/

3

(7)4

32

/

9

(65)

16

/

9

2

(116.5)

64

/

37

Top Vie w

129/16 (319)

29

/32 (23)

111/32 (34)

3

9

/4 (248)

21

9

/64 (3.5)

(423)

32

/
16

Side View

63/32 (155)

3

/64 (26.5)

1

(79)

6

/

1

3

(282.5)

25

/

3

11

Bottom View

331/64 (88.5) 2 15/16 (74.5)

M4

M4

13

/16(20.27)

M4

11

(103.2)

64

/

5

4

(158.9)

64

/

17

6

Units: inches (mm)

XG-P25X

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.)

2

Top Cover

1

Lens Shutter

Lens Cover

1

12

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.

XG-P25X

3-2

Lamp Unit

2-3

2-1

Intake Cover

2-2

3-1

Lamp Cover

Rear Body

3-2

13

XG-P25X

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

connector.

4-1

Lens Shift Knob

4-2

Top Body

4-1

4-3

4-1

4-3

4-3

14

(RP)

(BP)

(GP)

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

(AZ)

(SO) (Q)

(GP)

(D)(FR)

(EA)

(FE)

5-5

5-3

5-6

5-1

5-4

5-2

Output/Input
PWB Ass'y

Output Sub PWB

PC I/F Unit

XG-P25X

5.Removing the PWB unit.

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

15

XG-P25X

Reassembling precautions

5-7. Fit part a of the input PWB to the slit of the bottom cover.
5-8. Align the input PWB’s shield with the top of the AC inlet shield ( b ).
5-9. 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

16

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.

XG-P25X

Power/Ballast Unit

Sound Out PWB

6-2

6-5

6-1

6-3

6-6

Bimetal Ass'y

6-4

17

6-3

XG-P25X

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

7-2

Optical Mechanism Unit

7-2

7-2

7-1

7-3

7-4

AC Inlet Unit

18

RESETTING THE TOT AL LAMP TIMER

ON

•Reset the lamp timer only after replacing the lamp.

Resetting the lamp timer

2

Connect the power
cord.

1

Reset the lamp timer.

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

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

XG-P25X

Maintenance Indicators

POWER
indicator

Maintenance Indicator

TEMPERATURE
WARNING indicator

LAMP REPLACE­MENT indicator

POWER indicator

LAMP
REPLACEMENT
indicator

• The warning lights on the projector indicate problems
inside the projector.

• There are two warning lights: a TEMPERATURE
WARNING indicator which warns that the projector is
too hot, and a LAMP REPLACEMENT indicator which
lets you know when to change the lamp.

TEMPERATURE
WARNING
indicator

• If a problem occurs, either the TEMPERATURE
WARNING indicator or the LAMP REPLACEMENT
indicator will light up red. After turning off the power,
follow the procedures given below.

Condition Possible Solution

The internal
temperature is
abnormally high.

The lamp does not
light up.

The lamp requires
replacement.

• Blocked air intake.

• Clogged air filter.

• Cooling fan breakdown.

• Internal circuit failure.

• Burnt-out lamp.

• Lamp circuit failure.

• Lamp has been used for

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

• The filter cover is open.

Problem

over 1,400 hours.

• Relocate the projector to an area with
proper ventilation.

• Clean the filter.

• Take the projector to your nearest Sharp
Authorized LCD Projector Dealer or Service
Center for repair.

• Carefully replace the lamp.

• Take the projector to your nearest Sharp
Authorized LCD Projector Dealer or Service
Center for repair.

• Securely install the filter cover.

• If the POWER indicator blinks even when
the filter cover is securely installed, contact
your nearest Sharp Authorized LCD
Projector Dealer or Service Center for
advice.

• If the TEMPERATURE WARNING indicator lights up, follow the above possible solutions and then wait until the pr ojector has
cooled down completely before turning the power back on. (At least 5 minutes.)

• If the power is tur ned off and then turned on again, as during a brief rest, the LAMP REPLACEMENT indicator may be
triggered, preventing the power from going on. Should this occur, take the power cord out of the wall outlet and put it back
in again.

19

XG-P25X

THE OPTICAL UNIT OUTLINE

Layout of the optical system

Note: Layout for positioning the optical system.

1/2λ plate

Sapphire glass
Polarizing plate

Incident polarizing plate B

Projection Lens

1/2λ plate + polarizing plate

Sapphire glass
Polarizing plate

Incident polarizing plate R

Dichroic coating
(B transmission)

M6

BLUE

AL-coated mirror B

G03 L2

Relay lens 1

Relay lens 2

G02 L2

AL-coated mirror B

M4

AL-deposited face

B-LCD

Cross dichroic prism

G-LCD

Incident polarizing plate G

Condenser lens G

Marking

BLUE

G01

Relay lens 1

UV-absorption-filter

* M3

GREEN

G reflector

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

M5

AL-deposited face

RED

(R reflection)

M2

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)

L1

AL-deposited
face

PBS aperture

Fly-eye lens (outgoing light)

UV-IR coating

Fly-eye lens (incoming light)

20

M1

AL-coated mirror W

XG-P25X

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 f ocus 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 conv ergence and f ocus , do not mo ve the projection lens z oom and f ocus 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

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

in the Z direction. If the con v ergence is quite diff erent 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 ref erence, adjust the B-LCD panel in the X, Y and θZ directions.
(3) Finally tighten up the convergence lock screw "d".

21

XG-P25X

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

Z

X

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.)

X

Z

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)

Y

X

θZ

R•B-LCD

R•B adjusting plate

R•B-LCD panel
mounting screws

22

Convergence and Focus Adjustments at a Glance

2

5

16

R2

50

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-P25X

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

80

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 —

23

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

XG-P25X

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

2

SIDE VIEW

2

Lock
screws "c"

Lock
screws "b"

2

G-LCD

X

θY

Z

~

θY

X

B-LCD

2

Lock screws "c"

Z

SIDE VIEW

G adjusting plate

G-LCD

B-LCD

B adjusting plate

3

B-LCD panel
mounting screws

24

X

Y

G-LCD panel

3

mounting screws

θZ

XG-P25X

Replacing the R-LCD panel

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

<Figure 1>

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

<Figure 2>

(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.

C

B

A

D

A

C

E

Fig.1

Fig.2

SIDE VIEW

R-LCD

R adjusting plate

4

R-LCD panel
mounting screws

25

XG-P25X

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.

M6

Lock screws

Shielding plate B

adjust lever

slide
turn

FRONT

Shielding plate R

M5

Shielding plate G

adjust lever

Lock screws

turn

slide

26

slide

turn

M1

adjust lever

Lock screws

XG-P25X

Adjusting the lamp duct.

Lock screws

Lamp duct

turn

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.

<Adjusting the G-LCD incident polarizing plate.>

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

27

XG-P25X

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 I/F unit not included, is
initialized. Do not execute S1 because otherwise
the PC board will be initialized.
To adjust the PC I/F unit, follow the instruction in
"Adjusting the PC Interface". (See page 34)

2 R drive 1. Make the following choice.

Group : A/D

2. F eed 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 sub­jects R1-BLK and R1­GAIN.
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 3.8 ±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 2.1Vp-p ±0.1V.

2.1Vp-p

» Make the same adjustments for green and blue.

3.8Vp-p

28

No. Adjusting point Adjusting conditions Adjusting procedure

XG-P25X

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 le vel at

8.)
Fix the GCK-PHASE set­tings all to 6.

» 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, mak e sure their wa ve-

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 center.

» After adjusting, adjust the value of GC down 2

points (only "GC").

» 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

29

XG-P25X

2.2Vp-p

No. Adjusting point Adjusting conditions Adjusting procedure

10 RGB white

balance

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

R1-GAIN(R)
B1-BLK (B)
B1-GAIN(B)

» 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.)

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. F eed 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 blac k 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

30