Sharp XV-Z1U Service Manual

SHARP SERVICE MANUAL

S88V9XV-Zl U//

PAL/SECAM/NTSC SYSTEM

LCD PROJECTOR

MODEL xv-z1 u

of user-safety (Required by safety regulations in some countries) the set should be re-

condition and only parts identical to those specified should be used.

-xv-z1 u

. SPECIFICATIONS

. INPORTANT SERVICE SAFETY NOTES ..........

. NOTE TO SERVICE PERSONNEL ....................

. OPERATION MANUAL

. REMOVING OF MAJOR PARTS

l CONTROLLING THE TOTAL

OPERATING HOURS OF THE LAMP .............. 15

l RESETTING THE LAMP

OPERATING HOUR COUNTER

. THE OPTICAL UNIT OUTLINE

l CONVERGENCE AND

FOCUS ADJUSTMENT

. ELECTRICAL ADJUSTMENT . TROUBLESHOOTING TABLE

...............................................

.......................................

......................

...................... 16

........................ 17

....................................

..........................

CONTEN--

Page

2 3 4 7

18 22 30

Page

CHASSIS LAYOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

BLOCK DIAGRAM

OVERALL WIRING

DESCRIPTION OF SCHEMATIC DIAGRAM . . . . . 41

WAVEFORMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SCHEMATIC DIAGRAM

PRINTED WIRING BOARD ASSEMBLIES . . . . . . 79

PARTS LIST

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

n ELECTRICAL PARTS . . . . . . . . . . . . . . . . . ..*.............

n CABINET AND MECHANICAL PARTS . . . . . 113

n ACCESSORIES PARTS

. . . . . . . . . . . . . . . . . . . . . . . . . . . 122

n PACKING PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

PACKING OF THE SET . . . . . . . . . . . . . . . . . . . . . ..*..........

35 37 39

42 43

122 123

SHARP CORPORATlON

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

xv=21 u

Specifications

1 Product type 1 LCD Projector

Model xv-z 1 u

Video system PAL/SECAM/NTSC 358/NTSC 4.43

Display method LCD panel x 3, RGB optical shutter method

Panel size 1.3” (3.3 cm) (20.0 (H) x 26.7 (W) mm)

LCD panel

Display method Translucent TN liquid crystal panels

Drive method TFT (Thin Film Transistor) Active Matrix panels

No. of pixels 311,696 dots (484 (V) x 644 (H))

Lens

Projection lamp

Contrast ratio

Video input signal

S-video input signal

Video (monitor) output signal

Component video input signal

Audio output

Speaker system

F2.5 to 3.6 , f = 47 to 76 mm

240 W Metal halide

lOO:l

RCA Connector: VIDEO, composite video, 1 .O Vp-p, sync negative, 75 Q terminated RCA Connector: AUDIO, 0.5 Vrms, more than 22 kQ

4-pin mini DIN connector Y (luminance signal): 1 .O Vp-p, sync negative, 75 Q terminated C (chrominance signal): burst 0.286 Vp-p, 75 Q terminated

RCA Connector: VIDEO, composite video, 1 .O Vp-p, sync negative, 75 Q terminated RCA Connector: AUDIO, 0.5 Vrms, less than 2.2 kS2

RCA Connector: Y (luminance signal): 1 .O Vp-p, sync negative, 75 Q terminated

PB(B-Y) (chrominance signal): 0.7 Vp-p, 75 R terminated PR (R-Y) (chrominance signal): 0.7 Vp-p, 75 Q terminated

RCA Connector: AUDIO 0.5 Vrms, inore than 22 kR (stereo)

480 doubled TV lines (video input)

3 W + 3 W (stereo)

3” (8 cm) round x 2

Rated voltage

/ Rated frequency

Standby consumption

Operating temperature

Storage temperature

Weight

Supplied accessories

Replacement parts

Our projector uses LCD (Liquid Crystal Display) panels. These very sophisticated panels contain 311,696 dots ( x RGB) TFTs. (Thin Film Transistors). As with any high technology electronic equipment such as large screen TVs, video systems and/or video cameras, there are certain acceptable tolerances that the equipment must conform to.

This unit has some inactive TFTs within acceptable tolerances, which may result in illuminated 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 1-800-BE-SHARP (l-800-237-4277). (U.S.A.]

AC 120 V

50160 Hz

320 W

/ 41°F to 104°F (+5”C to +4O”C)

- 4°F to 140°F ( - 20°C to + 60°C)

Plastic

10.4” x 15.3” x 4.7” (264 x 388 x 120 mm)

16.1 Ibs. (7.3 kg)

Remote control unit, two AAA batteries, lens cover (installed), air filter (installed), AC cord, AV cable

Remote control unit (RRMCG1412CESA) air filter (PFILD0080CEZZ), AC cord, AV cable (QCNW-3740CEZZ)

*Specifications are subject to change without notice.

) xv-ZlU

IMPORTANT SERVICE SAFETY NOTES

n 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.

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 0.15uF 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.

TEST PROBE

TO EXPOSED METAL PARTS

CONNECT TO KNOWN EARTH GROUND

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 “A” and shaded areas in the Replacement Parts Lists and Schematic Diagrams.

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.

For continued protection,

AVIS POUR LA SECURITE

De nombreuses pieces, electriques et mecaniques, dans les projecteur a LCD presentent des caracteristiques speciales relatives a la securite, qui ne sont souvent pas evidentes a vue. Le degre de protection ne peut pas etre necessairement augmentee en utilisant des pieces de remplacement etalonnees pour haute tension, puissance, etc. Les pieces de remplacement qui presentent ces caracteristiques sont identifiees dans ce manuel; les pieces electriques qui presentent ces particularites sont identifiees par la marque “A” et hachurees dans la liste des pieces de remplacement et les diagrammes schematiques. Pour assurer la protection, ces pieces doivent etre identiques a celles utilisees dans le circuit d’origine. Cutilisation de pieces qui n’ont pas les memes caracteristiques que les pieces recommandees par

I’usine, indiquees dans ce manuel, peut provoquer des electrocutions, incendies ou autres accidents.

NOTE TO SERVICE PERSONNEL

////////////////////////////////////////

UV-RADIATION PRECAUTION

;///////////////////

The light source,

projector emits small amounts of UV-Radiation.

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.

metal halide lamp, in the LCD

UV-RADIATION PRECAUTION

I////////////

Continued)

/’

U 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

[Use original replacement only.]

@ Lamp

@ Reflector

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.

Allow one hour for the unit to cool down before

servicing.

Replace only with same type lamp. Type

CLMPF0042DE06 rated 75V/265W.

The lamp emits small amounts of UV-Radiation, avoid

4 .

direct-eye contact. The medium pressure lamp involves a risk of

explosion. Be sure to follow installation instructions described below and handle the lamb with care.

DANGER !

lamp to avoid electric-shock or damage of the devices since the stabilizer generates high voltages at its start.

- Never turn the power on without the

D’ENTRETIEN

////////////////////////////////////////

PRECAUTION POUR LES RADIATIONS UV

;///////////////////

source de projecteur LCD 6met de uv

EiTEZ TOUTE EXPOSITION DIRECTE DES

YEUX ET DE LA PEAU.

Pour votre sbcurit6, nous vous prions de respecter les points suivants:

1. Toujours porter des

entretien du projecteur avec la et le haut

lumi&e,

lampe allumee

coffret

retire.

lampe

petites

lunettes de soleil lors d’un

metal

halide, dans le

quantitbs de

radiation

L %

xv-z1

PRECAUTION POUR LES RADlATlONS UV (Suite)

Remplacement de la lampe

Remarque:

Comme fonctionnement de I’unite, etre effect& au moins une heure apres avoir

I’alimentation (pour permettre

En toucher tenant

[N’utiliser

lampe devient tres chaude

son remplacement ne doit

a la lampe

installant la

la lampe (ampoule). Remplacer la lampe en

son

nouvelle lampe,

reflecteur

qu’un remplacement d’origine.]

s’assurer

@ Lampe

pendant le

coupe

refroidir).

ne pas

2. Ne pas faire fonctionner la lampe a I’exterieur du boltier de lampe.

3. Ne pas faire fonctionner plus de 2 heures avec le coff ret retire.

Prkautions pour les radiations UV

et la lampe moyenne pression

Toujours debrancher la fiche AC lors du

remplacement de la lampe. Laisser I’unite refroidir pendant une heure avant de

2 .

proceder a I’entretien. Ne remplacer qu’avec une lampe du meme type. Type

3 *

CLMPF0042DE06 caracteristique 75V/265W.

La lampe emet de petites quantites de radiation UV-

eviter tout contact direct avec les yeux.

La lampe moyenne pression implique un risque

d’explosion. Toujours suivre les instructions d’installation d&rites ci-dessous et manipuler la lampe

avec soin.

Reflecteur

DANGER ! - Ne jamais mettre sous tension sans la

lampe pour eviter dommages des appareils car le stabilisateur genere de hautes tensions a sa

un choc electrique ou des

mise en route.

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

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

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

MOISTURE OR WET LOCATIONS.

The lighting flash with arrowhead within a

RISK OF ELECTRIC SHOCK. DO NOT REMOVE SCREWS

EXCEPT SPECIFIED USER

SERVICE SCREW

triangle is intended to tell the user that parts inside the product are risk of electric shock to persons.

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,

NO USER-SERVICEABLE PARTS EXCEPT LAMP UNIT

CAUTION

(Power Unit)

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

AVERTISSEMENT: AFIN D’EVITER TOUT RISQUE D’INCENDIE OU D’ELECTROCUTION, NE PAS PLACER

D’ELECTROCUTION, NE PAS RETIRER LE CAPOT.

AUCUNE DES PIECES INTERIEURES N’EST REPARABLE

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

LAMPE. POUR TOUTE REPARATION, S’ADRESSER A UN

DO NOT REMOVE CABINET

REFER SERVICING TO QUALIFIED SERVICE

PERSONNEL.

CAUTION

(Output Unit)

For continued protection against a risk of fire, replace only with same type 8A l25V fuse.

(ROl)

directement. Veiller particulierement a eviter que les enfants ne fixent directement le faisceau lumineux.

CET APPAREIL DANS UN ENDROIT HUMIDE OU MOUILLE.

RISQUE

D’ELECTROCUTION NE

PASRETIRER LES VIS, A

L’EXCEPTION DES VIS DE

REPARATION UTILISATEUR

SPECIFIEES

ATTENTION: POUR EVITER TOUT RISQUE

TECHNICIEN D’ENTRETIEN QUALIFIE.

For continued protection against a risk of fire, replace only with same type 1.6A 60V fuse. (F4OOl)

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

CAUTION

(Output Unit)

For continued protection against a risk of fire, replace only with same type 1 A 6OVfuse. (F4002)

C&lair termine d’une fleche a l’interieur d’un triangle indique a I’utilisateur que les pi‘eces se trouvant dans I’appareil sont susceptibles de provoquer une decharge electrique.

Le point d’exclamation a I’interieur d’un triangle indique a I’utilisateur que les instructions de fonctionnement et d’entretien sont detaillees dans les documents fournis avec le projecteur.

PRECAUTION PRECAUTION

(Unite D’alimentation)

Pour la protection continue contre les risques d’incendie, ne remplacer le fusible que par un fusible (F701) de meme type 8A, l25V.

Pour la protection continue contre les risques d’incendie, ne remplacer le fusible que par un fusible (F4001) de meme type

1.6A, 60V.

PRECAUTION

Pou r une protection continue contre les risques d’incendie, ne remplacer qu’avec un fusible 1 A 60V

du meme type.

(F4002)

Location of Controls

xv-z1 u

FRONT VIEW

Lens focusing ring Remote control,

sensor

Cooling f (Exhaust

\ Zoom, knob Carry in! handle

ing fan aust vent)

Adjusters Cooling fan (Intake vent)

OPERATION PANEL ON TOP OF PROJECTOR

POWER (ON/OFF) button

ON/OFF

POWER indicator

LAMP REPLACEMENT indicator

TEMPERATURE WARNING indicator

POWER

Cautions:

The exhaust vent, the lamp cage cover and

adjacent areas may be extremely hot during projector operation. To prevent injury, do not touch these areas until they have sufficiently cooled. Allow at least 4 inches (10 cm) of space between the cooling fan (exhaust vent) and the wall. If the cooling fan becomes obstructed, a protection device will automatically turn off the projector lamp. This does not indicate a malfunction. Remove the projector plug from the wall socket and wait 10 minutes. Then turn on the power by plugging the cord back in. This will return the projector to its normal mode.

VOLUME UP-DOWN buttons

MUTE button

INPUT SELECT button

REAR VIEW

S-VIDEO INPUT 1 (4pin mini DIN)

MENU button

Intake

Speakers

COMPOSITE VIDEO INPUT 1 Video: RCA Audio: RCA

ADJUSTMENT (4/b, V/A) buttons

ENTER button

COMPOSITE VIDEO OUTPUT Video: RCA Audio: RCA

I IjL R

Y PB(B-Y) PR(R-Y)

MAIN POWER switc

S-VIDEO INPUT 2 (4-pin mini DIN)

COMPOSITE VIDEO INPUT 2 Video: RCA Audio: RCA

ANALOG COMPONENT INPUT RCA

xv-ZlU 1

Remote Control Operation

REMOTE CONTROL

VOLUME UP-DOWN buttons

ADJUSTMENT (V/A) buttons

MENU button

ENTER button

LIGHT button

Using the remote control in a dark room

Press the LIGHT button.

l This will cause the operation

buttons to stay lit for about 5 seconds.

Remote control sianal transmitter

VOLUME

aTRF

LIGHT INPUT

ON/OFF

MUTE

SELECT

SHARP

LCD PROJECTOR

- TRANSMIT indicator

- POWER (ON/OFF) button

- MUTE button

- INPUT SELECT button

Remote control handling precautions

Do not expose the remote control to shocks, liquids or high humidity. The remote control may not operate normally if exposed to direct sunlight or other intense light sources. Should this happen, reposition the light source or the LCD Projector.

Press down -

Slide oper

Battery cover

1 Transmission range 1

Max. distance: 23’ (7 m)

Zlose

Inserting the batteries

Remove the battery cover as shown and insert two AAA size batteries making sure the polarity matches the ( + ) and (-) marks inside the battery compartment.

Notes:

Incorrect use of batteries may cause them to leak or burst.

Insert the batteries with the ( +) and (- ) polarities as indicated. Remove the batteries if the remote control will not be operated for an extended period of time. Maintain the batteries in clean condition. Do not mix different brands of batteries. The life expectancy of the new batteries will be shortened and the old batteries may leak. When the batteries have been used up, remove them immediately to prevent leakage and damage. Leaked battery fluid may irritate the skin. Remove any battery fluid by wiping with a cloth. Due to storage conditions and the shelf life of the supplied batteries, they may run out after a short time. Replace them with new batteries as soon as possible.

Reception range

Remote control positioning

Use the remote control as shown in the figures on the left.

Note:

l The signal from the remote control can be reflected off the screen for

easy operation. However, the effective distance of the signal may differ due to the screen material.

Demensions

1 xv-mu

Rear View

Top View

t-----

Side View

Front View

__!L

1.8 (45)

Bottom View

[Units: inches (mm)]

xv-21

REMOVING OF MAJOR

PARTS>

n Before starting this job, detach the lamp cage unit and the filter cover.

1. Removing the top cabinet

l-l

. Remove the three

screws at the carrying

handle side.

Remove the two screws at the terminals side.

1-2

Detach the terminal door, and remove the four screws off the terminal cover.

1-3

Slowly lift the back of the top cabinet and disconnect the operation key unit connector (KY).

1-4 .

the top cabinet. Place the top cabinet upside down. Remove the four screws off the operation key unit. Take out the operation

l-5

key unit.

Pull up and away

Terminal Door

2. Removing the front cabinets

2-1. Tilt the front-right cabinet forward. Pull it up out of position.

Tilt the front-left cabinet

2-2.

lnfra

forward. Disconnect the infrared R/C receiver unit. Pull up

Front-right Cabinet

the cabinet out of position.

xv-z1

Front-left Cabinet

xv-21 u

3. Removing the rear cabinet

3-1. Remove the two

and

disconnect

screws

the

off the rear

speaker connector (SP). Now

cabinet

and

the

screw

rear

from

the static ground lead. Pull up the cabinet

cabinet

is free.

Make sure the bimetai lead terminals are at the of the boss@ and

rib @.

bottom

1 xv-ZlU

4. Removing the PWBs

4-1 .

Remove the two screws that fix the video input terminal cover to the bottom cabinet.

4-2

Remove the two screws off the output shield. Take out the output shield and disconnect the R-LCD, G-LCD and B-LCD connectors (RP, GP, and BP).

4-3 .

Remove the four screws off the output unit. Disconnect the insulating barrier, the ground leads and the connectors (FN, Q, LL, FF, LF, BL, RC and EA). Pull up and away the output unit and the signal/video input

terminal unit. 4-4 . Remove the screw off the back of the output unit. Separate this unit from the signal/video input terminal unit. 4-5 . Remove the screw off the bottom cabinet and the screw off the power panel. Now take out the power panel.

lnsula Barrie

ting r

Output Shield

Signal/Video Input

terminal Unit

Panel

xv-z1 u

5. Removing the optics mechanism assembly

5-l

Remove the two screws off the angles A and B of the carrying handle.

5-2

Remove the two screws off the lamp socket holder. Take out the lamp socket.

5-3 .

Disconnect the bimetal connector (BA). up and away this assembly.

5-4

Remove the two screws off the exhaust panel. Separate the panel from the bottom cabinet.

5-5 .

Remove the screw off the power/ballast unit assembly. Pull up and away the unit.

5-6

Disconnect the connector of the BL wire that comes from the power/ballast unit.

Remove the four screws off the optics mechanism assembly, and pull

Power/Ballast Unit

Detach the carrying handle.

5-6

Exhaust Panel

xv-z1 u

CONTROLLING THE TOTAL OPERATING HOURS OF THE LAMP

The following control is carried out when the lamp has been used for 1900 hours and 2000

hours.

1 .

After 1900-hour use

When the power is turned on, “LAMP” appears in the on-screen display for about 1 minute (flashing in yellow) and the lamp LED indicator lights up in red. When the 1,900-hour point comes up during use of the unit, the “LAMP” display starts flashing in yellow on the screen for 1 minute at the very 1,900-hour point. Now the lamp LED indicator changes from green to red.

2 .

After 2000-hour use

When the power is turned on, “LAMP” appears in the on-screen display for about 5 minutes (flashing in red) and the lamp LED indicator lights up in red. Five minutes thereafter, the power turns itself off and the unit is interrupted. When the 2000-hour point comes up during use of the unit, the “LAMP” display starts flashing in red on the screen for 5 minutes at the very 2000-hour point. Five minutes later, the power turns itself off and the unit is

interrupted. (The lamp LED indicator stays red since the 1900-hour point.) If you try to turn on the power three times after the 2000-hour point, the unit remains off.

3 .

When the 2000-hour point comes up, take the following steps.

Replace the lamp with new one. While holding down both the “V0L.v” and “ADJY” keys on the unit, turn on

the main power switch (located on the side of the unit). The lamp operating hourmeter is now reset to zero. Turn

on the unit and make sure the time display shows “OOOOH”.

4 .

Displaying the total operating hours of the lamp (used to check the total time)

Change the STATUS3 data settings: PICTURE at 0, BRIGHT at MAX, COLOR at MIN, TINT at MIN, and SHARPNESS at MAX. Hold down the SOUND DOWN and ENTER keys for longer than 3 seconds. By doing

this, the total operating hours will be displayed on the screen.

1 xv-ZlU

RESETTING THE LAMP OPERATING HOUR COUNTER

The unit is designed to keep its power off when the

hours.

This is to protect the lamp fixture. Replace the lamp with new one and take the

following resetting procedure.

Resetting the lamp operating hour counter

Hold down the, “ADJ.v” and “V0L.v” buttons on the unit, and

the AC inlet).

2. Now the screen.

unit is

turned on and the

0 @

lamp operating hour counter

* (To be held down

at once)

I I I

’

I I I I I I I I I I I I I I

ADJ.v _____s.~

lamp has been

turn

on the main power

is reset to zero. “OOOH” appears on

Turn on the main power switch (located above the AC inlet)

used for

switch (located above

1900

and

2000

the

_ xv-ZlU

CONVERGENCE AND FOCUS ADJUSTMENT

Start the convergence removed but the power on. Use the remote control gun to adjust the image.Take the

following procedures.

1. Focusing the projection lens

(A) Replacing all the 3 LCD panels

Before

2. Replace the change the distance between the set and the rings. If and the screen size is affected. In out of the focus range, or a

replacing all the 3 LCD panels,

panels with

the

focus

and focus adjustments with the top cabinet and the signal shield

project an image on the screen and bring it into focus.

new

ones. But

readjusted with a different positional relation, the relation between the projection

long-distance

until

the focus

screen, nor to move

other words, a short-distance image (40 WIDE, for example) may

image (300

has been completely readjusted,

the projection

WIDE,

for example) may come out of focus.

lens focus and zoom

careful not to

distance

get

(B) Replacing

1. In adjusting 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

1 or 2 of the 3 LCD panels

the focus after replacement of one or two LCD

the distance has been changed or the projection lens readjusted, repeat the above steps 1 and 2.)

panels, project

2. Adjusting the G-LCD panel

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

1. Right-and-left focus adjustment (0Y direction) .

Loosen the lock screws “b” and “c” and insert the eccentric screwdriver into the notch and hole ‘lb”. 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.

‘Top-center-bottom focus adjustment (0X and Z directions).

2 .

Loosen the lock screws “a” and “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 8Y direction adjustment.

Repeat the above steps 1 and 2 to finely adjust the focus.

Note

@ Carefully proceed with the focus adjustment because the adjusting directions are correlated.

@ In adjusting the convergence and focus, do not move the projection lens zoom and focus rings until the end

of all the adjustments.

and insert the eccentric screwdriver into the notch and hole “a” or “c”.

Finally tighten up all the lock screws.

an image on the screen and turn

(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

l 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 convergence is quite different between the B-LCD and G-LCD panels, roughly adjust the convergence first and then the focus.

(B) Convergence adjustment

l Use a crosshatch pattern signal for this adjustment.

Make the adjustment just for the G-color and the relevant color.

Loosen the convergence lock screw “d”.

(1)

With the G-LCD panel’s screen center as reference, adjust the B-LCD panel in the X, Y and 8Z directions.

(2)

Finally tighten up the convergence lock screw I’d”.

(3)

1 xv-ZllJ

Note :

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

movement are not always uniform.

@ 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-I

R-LCD

\ Notch and hole “c”

(Use an bladed screwdriver.)

SIDE VIEW

G-LCD panel mounting screws

0 G-LCD

Lock screw “b” (0Y direction)

\G adjusting plate

Eccentric cam

Eccentnc cam

(y direct.;\

ROB adjusting plate ,

Lock screw “d” (convergence adjustment)

xv-ZlU 1

Convergence and Focus Adjustments at a Glance

Adjustment directions

Adjustment Direction

Definition

X direction

Convergence Y direction

0Z direction

Rotation around Z axis LCD turning axis

Z direction

Focus

8X direction Rotation around X axis LCD top-to-bottom flapping

8Y direction Rotation around Y axis LCD right-to-left flapping

Convergence and Focus Adjustment for the XV-Z1 Optical Mechanism

Direction of LCD panel

LCD right and left LCD top and bottom

LCD optical axis

Color Adjustment Direction Movement

X direction *0.8mm Eccentric cam

Convergence Y direction k0.8mm Eccentric cam

R/B

colors

Focus

G color

0Z direction Z direction =t0.8mm Notch and hole “a” & “c” Eccentric screwdriver,

0X direction A0 8Y direction ~1”

=tl O

Position

Eccentric cam adjusting wrench Eccentric cam adjusting wrench d

Eccentric cam

Notch and hole “a” & “c” Bladed screwdriver Notch and hole “b” & “c”

Same as for R and B colors

Eccentric cam adjusting wrench

Adjusting tool Lock screw Tightening tool

Focus Adjustments the Other Way

Lock screw Posit ion

Notch and hole “a” Z and 6X directions

1 Notch and hole “b” I8Y direction

I---

a b

Related direction

I C 1 Notch and hole “c” 1 Z, 0X and 8Y directions

Convergence and Focus Adjusting and Tightening Tools

Tool

Specific or General

Tool code

. I

d a, c a’ c b, c

Hex wrench Hex wrench Hex wrench Phillips

screwdriver

Configuration

Eccentric cam adjusting wrench

Specific

Eccentric screwdriver Specific

Hex wrench

Bladed screwdriver

General (redesigned)

General

Phillips screwdriver General

9DASPN-XGNVl U

SEQDRiVER-NVlA

SEQLNC-XGNVl U

SEQDRiVER-NV1 B

TT?

,LL

Lc!

t f

j=$+j-

For M2.6 pan-head machine screw

85min +,

Replacing the LCDs

With the top cabinet removed

(1) Remove the output shield. (2) Disconnect the LCD flat cable from the output PWB connector. (3) Remove the lock screws “b” and

panel.

(4) Separate the LCD panel from the adjusting plate.

* (5) Mount a new LCD panel in

“c”. Detach the R/B adjusting plate or the G adjusting plate together with the LCD

the reverse order of the above steps (l), (2), (3) and (4).

xv-21

* Readjust the convergence and

a small adjl

_rstment range in the Z direction.

TOP VIEW

focus. Note that the G LCD

panel

pews

.CD

needs

“C”

no convergence adjustment

SIDE VIEW

G adjusting plate

G-LCD

and has

SIDE VIEW

ROB-LCD

B-LCD

fz \

m Lock screws “c”

adjusting plate

ROB-LCD panel mounting screws

xv-21

NOTE :

The settings any relevant

ELECTRICAL ADJUSTMENT

have been factory-adjusted to their

part has been

replaced, make

the

best

points.

If any of them gets out of

related adjustment.

spec

or after

Adjustment

Step

1 PLL

(NTSC)

(R4314,

PLL

(PAL)

(I?431 3, R4320)

VCO primary

osc

(Ll 001)

Position Adjustment

1. Receive the monoscope pattern signal of NTSC.

R4318)

2. Connect the oscilloscope to TP4301 and

1. Receive the monoscope pattern signal Connect the oscilloscope to

TP4301 and TP4302.

1. No signal.

2. Short theTPlOO1 and GND.

3. Connect the frequency counter to TP1002 and

GND.

Conditions

TP4302.

of PAL.

Adjustment Method

Adjust center level

TP4302

TP4301

Adjust

same as NTSC.

l Adjust frequency of the core

to 15.625 kO.01 kHz

center

and pulse width of R4314/R4318.

level and pulse width of R4313/R4320,

of LlOOl

Center

iinIer

H-center

(NTSC)( DAC)

H-center

(PAL)( DAC)

1. Receive the

pattern signal of NTSC.

2. Push S2001 and set the fol-

low DAC mode.

Group Subject : H-CENT

Group Subject : H-POS

1. Receive the monoscope pattern signal of PAL.

2. Push S2001 and set the follow DAC mode.

Group Subject : PAL-H-CENT

Group : TEST Subjec : H-POS

monoscope

: VIDEO

+9 setting.

: TEST

: VIDEO 1

+9 setting.

Using the Operation key switch A ‘I, adjust same as

right and left overscan.

Overscan : 93-95%

Using the Operation key switch A v, adjust same as

right and left overscan.

Overscan : 93-95%

1 xv-ZlU

Step Adjustment Position

Adjustment Conditions

6 Reference black 1. Receive the 10 step gray

Level scale signal. (NTSC or PAL)

2. Connect the oscilloscope to pin (3) of P1501.

3. Group : VIDEO 5 Subject : T-BRT

7 Contrast

WC)

1. Receive the 10 step gray scale signal of NTSC.

2. Connect the oscilloscope to pin (3) of P1501.

3. Push S2001 and set the follow DAC mode.

Group : VIDEO 1 Subject : SUB-R 0

SUB-G 0 SUB-B 0 setting.

4. Group : VIDEO 1 Subject : CONT

Adjustment Method

l Using the Operation key switch A v, adjust the black

level as same as pedestal level.

Ped;?: .:,’

l Using the Operation key switch A v, adjust level be-

tween black level and 100% white level.

1.60 kO.OWp-p

8 Contrast of

component

mode

WC)

9 Bright of

component

mode

WC)

1. Receive the 10 step gray scale signal of NTSC.

2. Connect the oscilloscope to pin (3) of P1501.

3. Push S2001 and set the follow DAC mode.

Group : VIDEO 5 Subject : C-CONT

1. Receive the 10 step gray scale signal of NTSC.

2. Connect the oscilloscope to pin (3) of P1501.

3. Push S2001 and set the follow DAC mode.

Group Subject : C-BRIGHT

: VIDEO 5

l Using the Operation key switch A v, adjust level be-

tween black level and 100% white level.

1.55 -r-o.o5vp-p

l Using the Operation key swsitch A v, adjust the black

level as same as clamp level.

Step Adjustment Position Adjustment Conditions

10 AGC I. Receive the IO step gray

scale signal of NTSC.

2. Connect the oscillosope to pin (3) of PI 501.

3. Push S2001 and set the follow DAC mode.

Group : VIDEO 5 Subject : AGCADJ

Adjustment Method

l Using the Operation key switch A v, adjust level be-

tween black and 100% white level.

1.2 *O.OWp-p

_------_______________________________I

‘i

11 D/A Output level

I. Receive the 10 step gray

(NTSC) (DAC) scale signal of NTSC.

2. Connect the oscilloscope to pin (5) of Pl501.

3. Push S2001 and set the follow DAC mode.

Group : VIDEO 5 Subject : DAV

12 D/A Output level 1. Receive the 10 step gray

(PAL) (DAC)

scale signal of PAL.

2. Connect the oscilloscope to pin (5) of PI 501.

3. Push S2001 and set the follow DAC mode.

Group Subject : DAVREF

: VIDEO 1

l Using the Operation key switch A v, adjust level be-

tween black and 100% white level.

0.6 +-O.OSVp-p

l Using the Operation key switch A v, adjust level be-

tween black and 100% white level.

0.6 kO.O5Vp-p

13 Signal center

WC)

1. Receive the 10 step gray scale signal of NTSC.

2. Connect the oscilloscope to pin (2) of P4303.

3. Push S2001 and set the follow DAC mode.

Group Subject : SIG CTR

: VIDEO 2

0 Using the Operation key switch A v, adjust level be-

tween signal center and GND.

DC 7.0 1t0.lV

Signal center

----________________--~~~--.--~

GND

Step

Adjustment Position

14 Reference level

WC)

Adjustment Conditions

Receive the 10

scale signal

2. Connect the oscilloscope to pin

(2) of P4303.

3. Push

S2001 and set the fol-

low

DAC mode.

step

of NTSC.

gray

xv-z1

Adjustment Method

Using the Operation key switch A v, adjust level between signal center and reference level.

DC 2.0 (SUB-BIAS, R-BIAS, B-BIAS)

+O.lV

Gain

WC)

Group Subject

4. Connect the oscilloscope to pin

Subject

5. Connect the oscilloscope to pin (3) of P4303.

Subject

1. Receive the 10 step gray scale signal of NTSC.

2. Connect the oscilloscope to pin (2) of P4303.

3. Push S2001 and set the fol-

low DAC mode.

Group Subject : DRIVE

4. Cinnect the oscilloscope to pin (1) of P4303.

: VIDEO : SUB-BIAS

(1) of P4303.

R-BIAS

: B-BIAS

: VIDEO 2

______-_____________---------.

Reference

level

Signal

0 Using the Operation key switch A v, adjust level be-

tween black and 100% white level.

1.4 *O.OWp-p (DRIVEl, R-DRIVE, B-DRIVE)

center -

________________________________________----

BRIGHT

WC)

Subject : R-DRIVE

5. Connect the oscilloscope to pin (3) of P4303.

Subject : B-DRIVE

1. Receive the 10 step gray scale signal of NTSC.

2. Connect the oscilloscope to (2=BRIGHT)(l -R=BRT)(3-

B-BRT) of P4303.

3. Push S2001 and set the follow DAC mode.

Group : VIDEO 1 Subject : BRIGHT(G)

: R-BRT : B-BRT

Using the Operation key switch A v, adjust level be-

tween signal center and 100% white level.

2.55 ~0.1 Vp-p

Signal center

____--______________---------.-------

xv-21 u

Step Adjustment Position Adjustment Conditions

17 Gamma

WC)

1. Receive the 10 step gray scale signal of NTSC.

2. Connect the oscilloscope to pin (2) of P4303.

3. Push S2001 and set the follow DAC mode.

Group Subject : RGB GAM 1

4. Connect the oscilloscope to

pin (1) of P4303.

Group Subject : R GAM 1

5. Connect the oscilloscope to

pin (3) of P4303.

Group Subject : B GAM 1

: VIDEO 4

RGB CTR 1

: VIDEO 4

RCTRl

: VIDEO 4

BCTRl

Adjustment Method

l Using the Operation key switch A v, adjust level be-

tween 2nd gradation and GND for

4.4 kO.1 v

adjust level between black level and GND for

3.0 &O.lV

3.ov

GND

4.4v

18 SID signal level 1. Receive the 10 step gray

scale signal of NTSC.

2. Connect the oscilloscope to pin (6) of P4303.

3. Push S2001 and set the follow DAC mode.

Group Subject : SID CTR

: VIDEO.3

l Using the Operation key switch A v, adjust level be-

tween signal center and SID signal level.

4.0 *O.lV

step

Adjustment Position

19 TINT

(DAC)

Adjustment Conditions Adjustment Method

Receive the nal.

Connect the oscilloscope pin

(2)

3. Push

S2001

low DAC mode.

color

of P1501.

and set the fol-

bar

sig-

Using the Operation key switch A

freshtone B-Y waveform.

v, adjust the

TINT of component

@AC)

21 Color

@AC)

of NTSC

Group : VIDEO

Subject : TINT

1. Receive the nal for

component terminal.

Connect pin

3. Push S2001 and set the follow DAC mode.

Group

Subject : C-TINT

1. Receive the color bar signal of NTSC.

2. Connect the oscilloscope to pin (1) of P4303.

3. Push S2001 and set the follow DAC mode.

Group Subject : COLOR

the oscilloscope to

(2)

of P1501.

: VIDEO 5

: VIDEO 2

color

bar

sig-

Using

freshtone for

tween Red and 100% white level.

0.15 +o.osvp-p

the Operation key switch A v,

B-Y waveform.

_e--

c--

Using the Operation key switch A v, adjust level be-

100% White Red

$_ 44

_________M__.

__ -_

-’

adjust the

22 PAL COLOR

@AC)

1. Receive the color bar sig-

nal of PAL.

2. Connect the oscilloscope to

pin (1) of P4303.

3. Push S2001 and set the fol-

low DAC mode.

Group Subject : P-COLOR

: VIDEO 2

l Using the Operation key switch A v, adjust level be-

tween Red and 100% white level.

0.35 *o.o5vp-p

100% White Red

&_ $4

____________.

__ -_

- -f

xv-z1 u

Step Adjustment Position Adjustment Conditions Adjustment Method

23 SECAM 1. Receive the color bar sig-

COLOR nal of SECAM.

(DAC)

2. Connect the oscilloscope to pin (1) of P4303.

3. Push S2001 and set the follow DAC mode.

Group Subject : S-COLOR

: VIDEO 2

l Using the Operation key switch A v, adjust level be-

tween red and 100% white level.

0.2 *o.o5vp-p

100% White Red

,A $4

____________.

__ __

- @f

24 COLOR of

component

@AC)

25 Common DC

bias

(DAC)

(VCOMCTR)

(RC) (GC) (BC)

1. Receive the color bar signal of NTSC.

2. Connect the oscilloscope to pin (1) of P4303.

3. Push S2001 and set the follow DAC mode.

Group Subject : C-COLOR

1. Receive the monoscope

signal of NTSC or PAL.

2. Push S2001 and set the fol-

low DAC mode.

Group Subject : VCOMCTR 43 set before adjustment.

3. Subject : RC

: VIDEO 5

: VIDEO 3

l Using the Operation key switc A v, adjust level be-

tween red and 100% white level.

0 *o.o5vp-p

100% White Red

--_

-____.

- ._____ t

l Using the Operation key switch A v, adjust visually

to the sharpest contrast.

26 White balance

(DAC)

1. Receive the monoscope signal of NTSC or PAL.

2. Push S2001 and set the follow DAC mode.

Froup

Subject : R-BIAS

: VIDEO 2

B-BIAS

l Using the Operation key switch A v, adjust visually

to the white.

xv-ZlU X’

step Adjustment Position

27 Sign display

position

(L2003)

Vertical

position

(NTSC)

Adjustment

1. Receive signal of NTSC or PAL.

Push the

Receive the monoscope

signal of NTSC.

2. Push S2001 and set

low DAC mode.

Group Subject :

Conditions Adjustment Method

the

monoscope

volume key A

: TEST

V-POS

the fol-

Adjust L2003 symmetrical

Using

the

metrical to the upper

Overscan : 93-95%

to the

Operation

the volume sign on screen

right and

key switch

and

left side.

A v, display is

lower

side.

display is

sym-

Vertical position

(PAL)

Samplehold

31 Sensor of

thermostat

Receive the monoscope signal of PAL.

2. Push S2001 and set the fol-

low DAC mode.

Group : Subject : V-POS

1, Receive the color bar sig-

nal of NTSC.

2. Push S2001 and set the fol-

low DAC mode.

Group : TEST Subject : SH-POS

1. Push S2001 and set the follow DAC mode.

TEST

Using the Operation key switch A v, adjust the 21 points of V-POS.

Using the Operation key switch A v, adjust the

points of SH-POS.

Using the Operation key switch A V, adjust the 3 points of SH-POS.

Group : TEST Subject : HL

+ 65 hidden pages

Sharp XV-Z1U Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Specifications

IMPORTANT SERVICE SAFETY NOTES

NOTE TO SERVICE PERSONNEL

Location of Controls

Remote Control Operation

1. Removing the top cabinet

2. Removing the front cabinets

3. Removing the rear cabinet

4. Removing the PWBs

5. Removing the optics mechanism assembly

CONTROLLING THE TOTAL OPERATING HOURS OF THE LAMP

Resetting the lamp operating hour counter

CONVERGENCE AND FOCUS ADJUSTMENT

1. Focusing the projection lens

2. Adjusting the G-LCD panel

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

Convergence and Focus Adjustments Mechanism

Convergence and Focus Adjustments at a Glance

Replacing the LCDs

ELECTRICAL ADJUSTMENT