Sharp XG-NV1E, XG-NV1EA Service Manual

XG-NV1E XG-NV1EA

SHARP CORPORATION

SERVICE MANUAL SERVICE-ANLEITUNG

SECAM/PAL/NTSC SYSTEM

LCD PROJECTOR LCD PROJEKTOR

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.

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.

MODELS MODELLE

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TENTATIVE

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CONTENS

Page

INHALT

Page

• OVERALL WIRING DIAGRAM.........................45

• DESCRIPTION OF SCHEMATIC DIAGRAM ...49

• WAVEFORMS .................................................. 50

• SCHEMATIC DIAGRAM................................... 51

• PRINTED WIRING BOARD ASSEMBLIES......89

• PARTS LIST

ELECTRICAL PARTS ................................. 99

CABINET AND MECHANICAL PARTS.....126

ACCESSORIES PARTS ........................... 134

PACKING PARTS ..................................... 135

• PACKING OF THE SET .................................136

• NOTE TO SERVICE PERSONNEL....................3

• SPECIFICATIONS.............................................. 4

• OPERATION MANUAL ...................................... 6

• REMOVAL OF MAJOR PARTS ........................ 11

• THE OPTICAL UNIT OUTLINE ........................ 16

• CONVERGENCE AND

FOCUS ADJUSTMENT.................................... 17

• ELECTRICAL ADJUSTMENT .......................... 21

• TROUBLESHOOTING T ABLE ......................... 22

• CHASSIS LAYOUT .......................................... 39

• BLOCK DIAGRAM ........................................... 41

• GESAMTSCHALTPLAN.......................................

• BESCHREIBUNG DES SCHEMATISCHEN

SCHALTPLANS....................................................

• WELLENFORMEN ...............................................

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

• LEITERPLATTENEINHEITEN..............................

• TEILELISTE

ELEKTRISCHE BAUTEILE ............................

CEHÄUSETEILE UND MECHANISCHE

TEILE..............................................................

ZUBEHÖRTEILE ............................................

VERPACKUNGSTEILE ..................................

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

• HINWEISE FÜR DAS

WARTUNGSPERSONAL.....................................

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

• BEDIENUNGSANLEITUNG .................................

• ENTFERNEN DER WICHTIGSTEN TEILE..........

• ÜBERSICHT ÜBER DIE OPTIKEINHEIT.............

• ***** ......................................................................

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

• TABELLE FÜR STÖRUNGSSUCHE....................

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

• BLOCKSCHALTBILD ...........................................

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NOTE TO SERVICE PERSONNEL

UV-RADIATION PRECAUTION

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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.

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 CLMPF0042DE01 rated V/265W.

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.

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.

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.]

1

2

Lamp

Reflector

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REMOVING OF MAJOR PARTS

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

1.Removing the top cabinet

1-1. Remove the three screws at the carrying handle side.

1-2. Remove the two screws at the terminals side. 1-3. Detach the terminal door, and remove the four screws off the terminal cover. 1-4. Slowly lift the back of the top cabinet and disconnect the operation key unit connector (KY). Pull up and

away the top cabinet.

1-5. Place the top cabinet upside down. Remove the four screws off the operation key unit. Take out the

operation key unit.

(KY)

1-2

1-4

1-3

1-2

Top Cabinet

Terminal Door

1-1

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2.Removing the front cabinets

2-1. Tilt the front-right cabinet forward. Pull it up out of position. 2-2. Tilt the front-left cabinet forward. Disconnect the infrared R/C receiver unit. Pull up the cabinet out of

position.

2-2

2-1

Front-right Cabinet

Infrared R/C Receiver Unit

Front-left Cabinet

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3.Removing the rear cabinet and video terminal cover

3-1. Remove the two screws off the rear cabinet and the screw from the static ground lead. Pull up the cabinet

and disconnect the speaker connector (SP). Now the rear cabinet is free.

3-2. Remove the four screws off the video terminal cover. Detach the cover.

(SP)

3-1

3-2

a

b

Video Terminal Cover

Boss

Rib

Make sure the bimetal lead terminals are at the bottom of the boss a and rib b .

Rear Cabinet

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4.Removing the PWBs

4-1. Remove the two screws that fix the PC 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/PC terminal/ video board unit.

4-4. Peel off the shield sheet. Remove the four screws off the video board unit. Pull the unit toward yourself to

take it out. 4-5. Remove the two screws off the back of the output unit. Separate this unit from the signal/PC terminal unit. 4-6. Remove the screw off the bottom cabinet and the screw off the power panel. Now take out the power panel.

4-1

4-3

4-2

4-5

4-4

4-6

Insulating Barrier

Output Unit

Signal/PC Terminal Unit

Output Shield

Power Panel

PC Terminal Cover

Shield Plate

Video Board Unit

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5.Removing the optics mechanism assembly

5-1. Remove the two screws off the angles A and B of the carrying handle. Detach 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). Remove the four screws off the optics mechanism assembly, and

pull 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.

5-1

5-5

5-1

5-3

5-3 5-2 5-3

(BA)

5-3

5-4

Power/Ballast Unit

Carrying Handle

Optics Mechanism Ass'y

Exhaust Panel

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B-LCD

G-LCD

GREEN

BLUE

RED

R-LCD

Polarizer film

Dichroic coating (B transmission)

Dichroic coating (B reflection)

Incident polarizer plate R

Dichroic coating (R transmission)

AL-coated mirror R

AL-deposited face

Polarizer film

Marking

AR-coated face

Marking

G reflector

Dichroic coating

B/G reflector

AL-coated mirror W

AL-deposited face

Fly-eye lens (incoming light)

UV cut filter

Metal-halide lamp (Light source)

Relay lens 1

AL-deposited face

AL-coated mirror B

Projection Lens

B reflector

Cross dichroic prism

Incident polarizer plate B

Relay lens 3

Relay lens 2

Incident polarizer plate G

Condenser lens G

Fly-eye lens (outgoing light)

Condenser lens R

* M3

M6

M4

M2

M5

M1

THE OPTICAL UNIT OUTLINE

* 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.

Layout of the optical system

Note: Layout for positioning the optical system.

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CONVERGENCE AND FOCUS ADJUSTMENT

» Start the convergence and focus adjustments with the top cabinet and the signal

shield 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

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. T op-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 topto-bottom 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.

Note :

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

» 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

» Use a crosshatch pattern signal for this adjustment.

Make the adjustment just for the G-colour and the relevant colour. (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".

)

(

)

(

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X

Z

θY

X

Y

θZ

X

Y

θZ

X

Z

θY

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

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

Lock screw "b" (θY direction)

G-LCD panel mounting screws

G adjusting plate

Notches and holes "c" (Use on eccentric screwdriver.)

Notches and holes "c"

Lock screws "c"

(Use an bladed screwdriver.)

Eccentric cam (Y direction adjustment)

Eccentric cam (X direction adjustment)

Eccentric cam (θZ direction adjustment)

Lock screw "d" (convergence adjustment)

R•B adjusting plate

R•B-LCD

R•B-LCD panel mounting screws

TOP VIEW

SIDE VIEW

Lock screw "a"

FRONT

R-LCD

G-LCD

B-LCD

G-LCD

Convergence and Focus Adjustments Mechanism

Note :

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.

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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

Tool Specific or General Tool code Configuration

Eccentric cam Specific 9DASPN-XGNV1U adjusting wrench

Eccentric screwdriver Specific 9EQDRiVER-NV1A

Hex wrench General (redesigned) 9EQLNC-XGNV1U

Bladed screwdriver General 9EQDRiVER-NV1B

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

0.5

85min

ø5

(ø3.5)

3.5

2

5

(16)

(R2)

(50)

CUT

100

80

Focus Adjustments the Other Way

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

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 colours Z direction 0.8mm

Notch and hole "a" & "c"

Eccentric screwdriver, a, c Phillips

Focus θX direction ±1°

Notch and hole "a" & "c"

Bladed screwdriver a, c screwdriver

θY direction ±1°

Notch and hole "b" & "c"

b, c

Z direction ±0.2mm

G colour Focus θX direction ±1° Same as for R and B colours

θY direction ±1°

Colour Adjustment Direction

Movement

Position Adjusting tool

Lock screw

Tightening tool

Convergence and Focus Adjustments at a Glance

Adjustment directions

Lock screw Position Related direction

Adjustment Direction Definition Direction of LCD panel

Convergence and Focus Adjustment for the XG-NV1 Optical Mechanism

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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 "c". Detach the R/B adjusting plate or the G adjusting plate together with the

LCD panel. (4)Separate the LCD panel from the adjusting plate. (5)Mount a new LCD panel in the reverse order of the above steps (1), (2), (3) and (4).

~ 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.

X

Z

θY

TOP VIEW

SIDE VIEW

X

Z

θY

X

Y

θZ

X

Y

θZ

G-LCD panel mounting screws

G adjusting plate

Lock screws "c"

Lock screws "b"

R•B adjusting plate

R•B-LCD

R•B-LCD panel mounting screws

FRONT

R-LCD

B-LCD

~

G-LCD

1

4

2

3

Sharp XG-NV1E, XG-NV1EA Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual