Sharp XG-NVSXU, XG-NV5XU Service Manual

1 XG-NVSXU

SHARP

SERVICE MANUAL

Si SBSXG-NV5XU

PAL/SECAM/NTSC SYSTEM

LCD PROJECTOR

)(G_NVS)(U

MODEL

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.

/

l SPECIFICATIONS ..............................................

l

IMPORTANT SERVICE SAFETY NOTES..

l

NOTE TO SERVICE PERSONNEL..

l OPERATION MANUAL

l

REMOVING OF MAJOR PARTS..

l

RESETTING THE TOTAL LAMP TIMER..

l

THE OPTICAL UNIT OUTLINE ........................ 19

l CONVERGENCE AND

FOCUS ADJUSTMENT..

.

ELECTRICAL ADJUSTMENT

l

ADJUSTING THE PC BOARD .........................

’

TROUBLE SHOOTING TABLE ........................

l CHASSIS LAYOUT ..........................................

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

................................. 20

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

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

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

CONTENTS

Page

2

.3

.......

4
7

13

.18

.......

25
30
31
46

Page

l BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

l OVERALL WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . 52

l DESCRIPTION OF SCHEMATIC DIAGRAM . . . 54

l WAVEFORMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

l SCHEMATIC DIAGRAM . . . . . . .

l PRINTED WIRING BOARD ASSEMBLIES . . . . 100

l PARTS LIST

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

48

55
56

n ELECTRICAL PARTS . . . . . . . . . .._.................. ii i

n CAB~NETAND MECHANICAL PARTS . . . . . 141

n ACCESSORIES PARTS
n PACKING PARTS

l PACKING OF THE SET

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

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

. . . . . . . . . ..*.....................

148
148
149

SHARP CORPORATION

This document has been published to be used for
after sales service only.

The contents are subject to change without notice.

XG-NV5XU

I

Specifications

Product type

Model

Video system

Display method

LCD panel

Projection lamp

Brightness (ANSI lumen)

Contrast ratio

Video input signal

S-video input signal

Horizontal resolution

Audio output

Computer RGB input signal

Computer control signal

Speaker system

Rated voltage

Input current

Rated frequency

Power consumption

Operating temperature

Storage temperature

Cabinet

I/R Carrier frequency

Laser Pointer of Remote Control

Dimensions (approx.)

Weight (approx.)

Supplied accessories

Replacement parts

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

LCD Projector
XG-NV5XU
PAL/SECAM/NTSC 358iNTSC 4.43
LCD panel x 3, RGB optical shutter method
Panel size: 0.9” (13.9 [H] x 18.5 [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] x 768 [VI)
1-l 5 x zoom lens, F2.0-2.6, f = 37-55.5 mm

Lens

AC 150 W lamp
600 ANSI lumens
200: 1
RCA Connector: VIDEO, composite video, 1 .O Vp-p, sync negative, 75 R terminated
RCA Connector: AUDIO, 0.5 Vrms more than 22 kR (stereo)
4-pin mini DIN connector
Y (luminance signal): 1 .O Vp-p, sync negative, 7.5 n terminated
C (chrominance signal): Burst 0.286 Vp-p, 75 n terminated
700 TV lines (video input)
2 W (monaural)

Video signal

15PIN MINI D-SUB CONNECTOR (Computer Input Port 1, 2): RGB Separate/COmpOSite

sync/sync on green type analog input: O-O.7 Vp-p, positive, 75 n terminated
STEREO MINIJACK: AUDIO, 0.5 Vrms, more than 22 kR (stereo)
HORIZONTAL SYNC. SIGNAL: lTL level (positive/negative) or composite sync (Apple

only)
VERTICAL SYNC. SIGNAL: Same as above

g-pin D-sub male connector (RS-232C Input Port)
3 %z” (8 cm) round
AC 11 O-l 20/220-240 V

2.4 A/l .2 A
50/60 Hz
270 W
41 “F to 104°F ( + 5°C to + 40°C)

- 4°F to 140°F ( - 20°C to + 60°C)

Plastic
40 kHz
Wave length: 670 nm

Max. oufpuf: 1 mW
Class II Laser Product
9 %” (W) x 4 %4” (H) x 12 ?/64” (D) (229 x 121 x 310 mm) (main body only)
9 %” (W) x 5 %” (H) x 13 ‘7/M” (D) (243.5 x 128 x 337 mm) (including an ad­justment foot and projecting parts)

10.6 Ibs. (4.8 kg)
“Power” remote control, Simple presentation remote control, Four AA size batteries,
Two AAA size batteries, Power cord (9’ lo”, 3 m), Computer cable (9’ lo”, 3 m),
Computer audio cable (9’ lo”, 3 m), Macintosh adaptor, Mouse control serial cable
(3’ 3”, 1 m), Mouse control cable for IBM PS/2 (3’ 3”, 1 m), Mouse control cable for
Mac (6 ‘%d”,
Carrying bag, CD-ROM, LCD projector operation manual, LCD projector quick
reference, Sharp Advanced Presentation Software operation manual, Sharp

Advanced Presentation Software quick reference
Lamp unit (Lamp/cage module) (BQC-XGNV5XU/I), “Power” remote control
(RRMCG1470CESA), Simple presentation remote control (RRMCG1480CESA), AA
size batteries (UBATU0025GEZZ), AAA size batteries (UBATU0026GEZZ), Power
cord (CACCU5013CEOl), Computer cable (QCNW5108CEZZ) Computer audio
cable (QCNW-4870CEZZ), Macintosh adaptor (QPLGJ1512CEZZ), Mouse control
serial cable (QCNW-5112CEZZ), Mouse control cable for IBM PS/2 (QCNW­5113CEZZ) Mouse control cable for Mac (QCNW-5114CEZZ) Remote mouse
receiver (RUNTK0648CEZZ), Air filter (PFILD0076CEZZ), Lens cap
(GCOVHl307CESA), Carrying bag (GCASNOOOICESA), CD-ROM (UDSKA­OOOlCEOl), LCD projector operation manual (TINS-6583CEZZ), LCD projector quick
reference (TINS_6598CEZZ), Sharp Advanced Presentation Software operation
manual (TINS-6601CEZZ), Sharp Advanced Presentation quick reference (TINS­6676CEZZ)

17 cm), Remote mouse receiver, Extra air filter, Lens cap (attached),

Specifications are subject to change without notice.

This unit has some inactive TFTs within acceptable tolerances which
may result in illuminated or inactive dots on the picture screen. This
will not affect the picture quality or the life expectancy of the unit.
If you have any questions about this matter, please call toll free l-800­BE-SHARP (l-800-237-4277). (U.S.A.

2

1 XG-NVSXU

IMPORTANT SERVICE SAFETY NOTES

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

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

l

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.
Inspect all protective devices such as non-metallic

2.
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

3.

current leakage in the following manner:

0

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

(Do not use an isolation transformer for this test).

0

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).

l

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 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.

conductive side exposed. Be very careful in

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 “al’ et hachurees dans la
liste des pieces de remplacement et les diagrammes
schematiques. Pour assurer la protection, ces pieces
doivent Qtre identiques a celles utilisees dans le circuit
d’origine. L’utilisation 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.

composante bim6tallique dispose du
conducteur primaire dBnud4. Faire
attention lors de la manipulation de cette
composante sous tension.

XG-NV5XU

NOTE TO SERVICE PERSONNEL

c

UV-RADIATION PRECAUTION

‘//////////////‘///’

The

light

source,

projector emits small amounts

AVOID

To ensure

1.

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

DIRECT

Be

sure to
oroiector
iur;ed
enclosure

“on” and

safety

with

removed.

metal halide

EYE

AND SKIN EXPOSURE.

please

wear sun-glasses when

the

the top

adhere to the

lame

lamp, in the

of

UV-Radiation.

following:

servicing

LCD

the

NOTE POUR LE

PERSONNEL

D’ENTRETIEN

;////////‘//////////

PRECAUTION

4

La

source
projecteur
radiation

EVITEZ
DES

Pour votre
les

points suivants:

Toujours

1.
entretien
avec la
et

Ne pas faire fonctionner la lampe g I’ext&ieur du

2.
boitier de lampe.

de

UV.

TOUTE

YEUX

s6curit6,

du

lampe

le

haut du coffret retirb.

POUR

lumi&re,

LCD dmet de petites quantitbs de

LES RADIATIONS UV

la

lampe metal halide,

EXPOSITION DIRECTE

ET

DE

LA

PEAU.

nous

porter des

projecteur

allumee

vous prions

lunettes

*

de

soleil lors

-7

de respecter

/

dans

d’un

le

3. Do not

enclosure removed.

operate for more than 2 hours with the

UV-Radiation and Medium Pressure
Lamp Precautions

Be sure to disconnect the AC plug when replacing

1.
the lamp.
Allow one hour for the unit to cool down before

2.
servicing.
Replace only with same type lamp. Type

3.
CLMPFOOSDE05 or BQC-XGNV5XU/l rated 65Vl

15ow.

The lamp emits small amounts of UV-Radiation, avoid

4.
direct-eye contact.
The medium pressure lamp involves a risk of

5.
explosion. Be sure to follow installation instructions
described below and handle the lamp with care.

Ne

3.

pas faire fonctionner plus de 2 heures avec le

coffret retirt?.

Prbcautions pour les radiations UV
et la lampe moyenne pression

Toujours debrancher

1.
remplacement de la lampe.
Laisser I’unit6 refroidir pendant une heure avant de

2.
proceder & I’entretien.
Ne remplacer qu’avec une lampe du meme type.

3.

Type CLMPF0055DE05 or BQC-XGNV5XU/l,
caracteristique 65V/15OW.

La lampe kmet de petites quantites de radiation UV-

4.
eviter tout contact direct avec les yeux.
La lampe moyenne pression implique un risque

5.
d’explosion. Toujours suivre les instructions
d’installation d&rites ci-dessous et manipuler la
lampe avec soin.

la fiche AC lors du

4

I

XG-NV5XU

5

UV-RADIATION PRECAUTION (Continued)

;/////////////////// 2

W 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

0.

[Use original replacement only.]

/ @ Lamp

@ Reflector

&

DANGER ! - Never turn the power on without the

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

6

PRECAUTION POUR LES RADIATIONS UV (Suite)

W Remplacement de la lampe

Remarque:

Comme la lampe devient tres chaude pendant le
fonctionnement de I’unite, son remplacement ne doit
etre effect& au moins une heure apres avoir coupe
I’alimentation (pour permettre a la lampe de refroidir).
En installant la nouvelle lampe, s’assurer de ne pas
toucher la lampe (ampoule). Remplacer la lampe en
tenant son reflecteur 0.
[N’utiliser qu’un remplacement d’origine.]

/@ Lampe

@ Reflecteur

&

DANGER ! - Ne jamais mettre sous tension sans
la lampe pour eviter un choc electrique ou des
dommages des appareils car le stabilisateur genere
de hautes tensions a 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

model XG-NV5XU that is received without
one.

LENS CAP

Comme de petites quantites de radiation UV sont
emises par une ouverture entre le couvercle du con­duit et le botier de la lampe,il est recommande de
placer le CAPUCHON D’OPTIQUE sur I’ouvetture
pendant I’entretien pour dviter une exposition des

yeux et la peau (Fig. 1).

Remarque: Priere de se procurer un capuchon

d’optique acant d’entretien un modele
XG-NV5XU qui est livre sans.

CAPUCHON D’OPTIQUE

Figure 1.

Figure 1.

5

XG-NV5XU

WARNING:

WARNING:

I

CAUTION: TO REDUCE

NO USER-SERVICEABLE PARTS

c

High brightness light
careful that children do

TO REDUCE THE RISK
MOISTURE

DO NOT REMOVE CABINET.

REFER SERVICING TO

CAUTION

(INLET Unit)

For continued protection
against a
replace only with same
type 5A 250V fuse.

(F-W

OR WET LOCATIONS.

THE RISK

PERSONNEL.

risk of fire,

OF ELECTRIC SHOCK,

EXCEPT LAMP UNIT.

QUALIFIED SERVICE

source, do not

not

stare directly

OF FIRE OR ELECTRIC SHOCK,

stare into the

in to the beam of light.

A

A

beam of light, or view directly. Be especially

DO NOT EXPOSE THIS UNIT

The lighting
triangle
parts inside the product
shock to persons.

The exclamation

intended to tell the user
operating and servicing instructions are in

the manual with the projector.

flash

is intended

with

arrowhead within a

to tell the

are risk of electric

point within a triangle is

user

that important

TO

that

I

v

AVERTISSEMENT:

r

AVERTISSEMENT:

I

I

ATTENTION: POUR EVITER TOUT RISQUE

D’ELECTROCUTION, NE PAS RETIRER LE CAPOT

AUCUNE DES PIECES INTERIEURES NEST REPARABLE

PAR CUTILISATEUR, A CEXCEPTION DE CUNITE DE

LAMPE. POUR TOUTE REPARATION, S’ADRESSER A UN

TECHNICIEN D’ENTRETIEN QUALIFIE.

PRECAUTION

(Unite d’admission)

Pou rune protection
continue contre les rfsques
d’incendie, ne remplacer

qu’avec un fusible 5A

250V du mbme type.

(not

Source lumineuse de grande intensite. Ne pas fixer le faisceau lumineux ou le regarder
directement. Veiller particulibrement a eviter que les enfants ne fixent directement le

faisceau lumineux. .

AFIN D’EVITER TOUT RISQUE D’INCENDIE OU D’ELECTROCUTION, NE PAS PLACER
CET APPAREIL DANS UN ENDROIT HUMIDE OU MOUILLE.

1

A

A

C&lair termine d’une fleche a I’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.

I

I

1

6

Location of Controls

XG-NV5XU

Projector

-@

@ POWER indicator
@ POWER buttons (ON/OFF)
@ BLACK SCREEN button
@ INPUT SELECT button

@ FREEZE button
@ KEYSTONE button
0 ADJUSTMENT buttons (A/T/

41,)
@ LAMP REPLACEMENT indicator
@ TEMPERATURE WARNING indi-

cator

@ VOLUME buttons (+/-)

fjl MUTE button

@I MENU button

IrCOM button
AUTO SYNC button
ENLARGE button
ENTER button

Zoom knob
Focus knob
Remote control sensor
Air filter /Cooling fan

(Intake vent)
@ Carrying handle
@ Kensington Security Standard

connector
@ Foot release
@ Cooling fan (Exhaust vent)
@$ Remote control sensor
@I Speaker

a Cooling fan (Intake vent)
@ Air filter
@ COMPUTER INPUT 1 port

(HD-15)

@I RS-232C port (g-pin D-sub)

AUDIO INPUT terminals: RCA
AC socket

MAIN POWER switch
COMPUTER INPUT 2 port

(HD-15)
AUDIO OUTPUT terminal

(3.5 mm stereo minijack)
COMPUTER AUDIO INPUT

terminal (3.5 mm stereo minijack)
S-VIDEO INPUT terminal, 4-pin

mtni DIN
IrCOM sensor

b@ VIDEO INPUT terminal: RCA

7

XG-NVSXU

1

Operating the Wireless Mouse Remote Control

“Power”

Remote

Control

MUTE button
POWER buttons (ON/OFF)
BLACK SCREEN/TOOLS button
RIGHT-CLICK/ENTER
INPUT button
FREEZE button
KEYSTONE button
MOUSE/ADJUSTMENT switch

TRANSMISSION indicator
VOLUME buttons
LASER POINTER/MENU button

MOUSE/ADJUSTMENT buttons
IrCOM button

AUTO

SYNC button
ENLARGE button
BACKLIGHT button
MAIN POWER switch
LEFT-CLICK (BACK) button
Remote control signal transmitter
Laser pointer window
MOUSE signal transmitter
MOUSE button
RIGHT-CLICK button
LEFT-CLICK

button

button

(+/-I

(A/V/4/F)

Simple Presentation Remote Control

8

Inserting the batteries

j XG-NV5XU

on the arrow to remove

the battery cover.

for the “Power” remote
control and two AAA size
batteries for the simple
presentation remote control
making sure their polarities

the battery cover into
their slots and press the
cover in until it is
properly seated.

l The “Power” remote control can be used to control the projector within the ranges shown below.
l The remote mouse receiver can be used with the “Power” remote control or the simple presentation remote

control to control the mouse functions of a connected computer within the ranges shown below.

l The signal from the remote controls can be reflected off a screen for easy operation. However, the effective distance of the

signal may differ due to the screen material.

Controlling the Projector

Using the Wireless Mouse

Simple
presentation pI
remote control

“Power” remote control

\ ^_;

k&d

XG-NMXU 1

When operating the

projector controls

When operating the
wireless mouse or

using the laser pointer

The

“Power” remote control has the following

three func-

tions:

l

Operation of projector controls

l

Operation of wireless mouse

l

Use

of laser pointer

Slide the MOUSE/ADJUSTMENT switch

to the MOUSE

or ADJ. posltion for use of the function.

@ Connect the projector to a computer

Q Wireless mouse operation

1. After connecting the projector and the computer, turn
the profector on first. The computer should always be
turned on last.

2. Slide the MAIN POWER switch on the “Power” remote
control

to ON

@ Selecting the operation mode
To use the “Power” remote control as a wireless mouse, slide
the MOUSE/ADJUSTMENT switch to the MOUSE position.

INoTE)

l

To use the “Power” remote control to operate the projector, slide
the

MOUSE/ADJUSTMENT switch to

l

The wrreless mouse or RS-232C functton may not operate If your
computer senal port IS not correctly set up Please refer to the
computer’s operatton manual for detatls on setting uplinstalltng the
correct mouse driver

@

Moving the mouse cursor

Press ~/r/4/, on the “Power” remote control to move the
mouse cursor around the screen.

the ADJ. position.

M&se cursor

fhfton name

Pesttion al NOtJSEIAWUST’BBfT @td~

NIOUSE:fS, c-3
LASER POINTER/MENU LASER POINTER (GREEN)
BLACK SCREEN/TOOLS BLACK SCREEN (GREEN)
RIGHT-CLICWENTER RIGHT-CLICK (GREEN)
MOUSE/ADJUSTMENT MOUSE (GREEN)
LEFT-CLICKIBACK

LEFT-CLICK (NOT LIT)

ON (RED)

ENLARGE

LASER POINTER button

AOJ. j Q]

MENU (RED)

TOOLS (RED)
ENTER (RED)
ADJUSTMENT (RED)
BACK (NOT LIT)

button

lNoTE>

l

The supplied sample presentatron remote control can also be used
for wrreless mouse operatron

@Using the mouse buttons for two-button mouse

systems

The wrreless mouse is configured to be used

two-button

mouse (desktop mouse).

as a standard

1. Use LEFT-CLICK on the back of the “Power” remote
control as the “Left Click” of a standard desktop mouse.

2. Use RIGHT-CLICK on the front of the “Power” remote

control as the “Right Click” of a standard desktop
mouse.

l

For one-button mouse systems, use either the LEFT-CLICK or

RIGHT-CLICK

button

Using the laser pointer

Slide the MOUSE/ADJUSTMENT switch to the MOUSE
position, and then press LASER POINTER (*) to activate

the laser pointer. When the button is released, the light
automatically goes off.

[NOTE)

l

For safety reasons, the laser pointer automatrcally goes Off after

1

mtnute of contrnuous use To turn It on agaln, press

POINTER (w)

one more time.

LASER

Using the “Power” remote control in a dark
room

The “Power” remote control has a backlight function. When
BACKLIGHT is pressed, the remote buttons light
light refers to mouse operations, and red light to

adjustments.
INoTE)

l

If the MAIN POWER switch on the “Power” remote control is left
for more than 10 minutes without operation, the power will
automatically turn off. To turn the power back on, press any button
on the remote control for more than one second.

up. Green

projector

On

10

I

Connection Pin Assignments

XG-NVSXU

Analog Computer 1 and 2 Signal
Ports:

15-pin mini

RS-232C
D-sub male

1

6

Port:

D-sub

g-pin

connector

5

9

female

Pln

1

2
3

4
5
6
7
a

9

No.

Input

connector

Slgnal

CD

RD
SD

ER
SG
DR

:ss

Cl

Computer

Analog

1 Vdeo input (red)

7.

Earth

8.

Earth

Name
Receive Data

Send

Data

Signal

Ground
Data Set Ready
Request to

Send

Input

(green)
(blue)

l/O

Input

output

output
output

9. Not

connected

IO.

GND

11.

GND

12.

B-directional

13. Horizontal sync

14.

Vertical

15. Data clock

Reference

Not connected
Connected
Connected
Not

connected
Connected
Not

connected
Connected to internal
Not connected
Not

connected

sync signal

to

internal

to internal
to internal

data

signal

circuit
circuit

circuit
circuit

11

) XG-NV5XU

Dimensions

5%

(22)

3 %e

1

(84)

I

3 % (84)

F

3/d

(

9 “+z (243.5)

’

/4( (25) :- *

i_- T/16 (11 I

Ez
=.

5

cl

0

0

Units: inches (mm)

12

1 XG-NVSXU

REMOVING OF

MAJOR

I. Removing the Intake cover and lamp unit

l-l.

Detach the Intake cover.

l-2.

Loosen the lamp cover

l-3.

Remove

the

two

screw and

lamp unit lock screws. Detach the lamp

draw out

the lamp

cover in

unit.

PARTS

the

direction

of

arrow

(toward

yourself).

Intake

Note:

When replacing the lamp, make sure
that there is a clearance of over
8mm between the terminal and the
lamp snap-on spring (and other
metallic parts).

-on spring

Lamp cover

13

XG-NVSXU

I

2. Removing the top and rear cabinets

2-1. Remove the five rear cabinet lock screws.
2-2. Remove the four terminal board lock screws off the rear cabinet. Unhook and detach the rear cabinet from

below.

2-3.

Remove the

four top cabinet lock screws from below.

2-4.

Slowly lift
cabinet.

\

the

top cabinet and disconnect the operation key unit connector (KY). Then

Hook

Top cabinet

take away the top

3. Removing the PWB units

3-1. Disconnect the connectors.
3-2. Remove the twelve screws and detach the output Unit top shield.
3-3. Remove the two screws and detach the PC I/F Unit.
3-4. Remove the two screws and the spacer (stud bolt).Lift and detach the Unit assembly.
3-5. Remove the S-out/REG unit angle lock screw and take out the S-outMEG unit.

3-2

@F---o

2\ Output Unit top shield

1 XG-NV5XU

PC I/F Unit -

PC

-Spacer (stud bolt)
0utpl;t Unit @

XG-NVSXU

I

4. Removing the Power/Ballast unit assembly

4-l. Remove the Power/Ballast unit assembly lock screw.
4-2.

Remove the two lamp socket holder lock screws and take out the holder.
4-3. Disconnect the connector (BA) from the ballast unit.
4-4. Remove the (FG) lead lock screw.

4-5. Lift the Power/Ballast unit assembly off the position.

Power/Ballast Unit Ass’y

16

5. Removing the optical mechanism unit

Remove the six optical mechanism unit lock screws. Lift the unit off

5-1.

the position.

6. Removing the ballast unit and inlet unit

6-l. Disconnect the connector (PA) from the inlet unit. Take out the AC power switch.

Pull the inlet unit

6-2.
Note: Before installing the

toward yourself off the position.

lamp cover, make sure the AC

power

switch is at the

“0” (OFF)

I

position.

XG-NV5XU

AC power
(for Lamp

Duct Fan Unit

switch

replacement)

_---_

Mechanism Unit

Inlet Unit

17

XG-NVSXU

I

RESETTING THE TOTAL LAMP TIMER

When the lamp has been replaced, reset the total lamp timer in the following steps.

Resetting procedure

1. While holding down the “ENTER”, “ADJ.V” and “ADJ.)” keys on the set at the same time, turn on the main
power switch (located side the AC inlet).

2. Now the total lamp timer is reset to zero. “OOOH” appears on the screen.

POWER61 LAMP0 TEMP. ti

ENTER ADJ.V ADJ.)

The projector will not operate after the lamp timer exceeds 2000hrs. If the lamp re­placement indicator is red, and the projector will not power on, replace the lamp and
reset the lamp timer.

Lamp

The lamp in this projector operates for approximately 2,000 cumulative hours, depending on the usage environ-

ment. It is recommended that the lame be reolaced after 1.900 cumulative hours of use or when YOU notice a

significant deterioration of the picture and co& quality.

A CAUTION >

l Intense light hazard. Do not attempt to look into the aperture and lens while the projector is operating.

lrii6iF>

l The lamp usage time can be checked with the On-screen Display.
l As the usage environment can vary significantly, the projector lamp may not operate for 2,000 hours.

Condition

The LAMP REPLACEMENT l Lamp has been used for over 1,900 l
indicator lights up red, and “LAMP”
and “I will flash in yellow in the
lower-left corner of the picture.

A significant deterioration of the

picture and color quality occurs.

The power will automatically turn
off and the projector will enter

“LAMP” and ‘m will flash in red in

hours.

hours.

Problem

l l Lamp has been used for over 2,000

Possible Solution

Purchase a replacement lamp unit

(lamp cage/module) of the current
type BQC-XGNV5XU/l from your
nearest Authorized Sharp Industrial
LCD Products Dealer or Service
Center.
Replace the lamp. If you wish,
you may have the lamp replaced at
your nearest Authorized Sharp
Industrial LCD Products Dealer or
Service Center.

18

I

THE OPTICAL UNIT OUTLINE

Layout of the optical system

Note: Layout for positioning the optical system.

Incident polarizing plate B

\

XG-NV5XU

Projection Lens

ent polarizing plate R

oic coating (R transmission)

Dichroic
(6 reflec

sited face
ection)

-_

AC lamp

(Light source)

--L

l The M2, M3 mirrors have a coat-

ing 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.

h

Marking

L

L

- UV-IR filter

19

Fly-eye lens (incoming light)

1

Fly-eye lens (outgoing light)

XG-NVSXU

I

CONVERGENCE AND FOCUS ADJUSTMENT

l Start the convergence and focus adjustments with the top panel 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 LCD panels with new ones. But until the focus has been completely readjusted, be careful not
to change the projection distance between the set and the screen, nor to move the projection lens focus

and zoom rings.

Note:

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 the 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
projection distance between the set and the screen, nor to move the projection lens focus and zoom rings.
If the projection distance has been changed or the projection lens readjusted, repeat the above steps 1 and

3.

2.

2. Focus adjustment

(A) Adjusting the G-LCD panel(Make this adjustment on the white-only screen.)

1. Adjustment in 8X and Z directions .
Loosen the lock screw “a” and insert an eccentric screwdriver into the notch and hole “a”. Turn the screwdriver
until the top, center and bottom on the screen get into focus. In adjusting this top-to-bottom focus, tighten

the lock screws “b” and “c” to fix the 8Y direction adjustment.

First get the right and left halves in balance. Then improve the accuracy while making the adjustment 2

below.

2. Adjustment in 8Y direction
Temporarily tighten the lock screw “a” and loosen the lock screws “b” and “c”. Insert the eccentric screwdriver
into the notch and hole “c” for adjusting in the BY direction on the top of the screen. Insert the eccentric
screwdriver into the notch and hole “b” for adjusting in the 8Y direction on the bottom of the screen.

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

Notes :
@ 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.

(B) Adjusting the B-LCD panel (Do the same for the R-LCD panel.)

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

wider 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.

3. Convergence adjustment

l Use a crosshatch pattern signal for this adjustment.

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

1. Loosen the convergence lock screw “d”.

2. Adjustment in Y and BZ directions
Put a hex wrench in the Y and 8Z direction adjustment zone.

3. Adjustment in X direction

Put an eccentric cam adjusting wrench in the X direction adjustment zone.

20

4.

With the G-LCD panel’s screen center as refernce, adjust the R-LCD and B-LCD panels.

5.

Finally tighten up the convergence lock screw “d”.

Notes :

@ 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 cross-dichroic

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

Convergence and Focus Adjustments Mechanism

) XG-NV5XU

TOP VIEW

/

Z

B-LCD kx \Notchandhole”a”

Lock screw “a”

Lock screw “b”

Lock screw “c”

Notch and hole “c”

SIDE VIEW

G-LCD panel
mounting screws

ey

SIDE VIEW (from inside)

Lock screw “d”

\

RB-LCD /

Lock screw “d”

R.B.LCD panel
mounting screws

SIDE VIEW (from inside)

Eccentric cam
(Y direction adjustment)

Eccentric cam
(X direction adjustment)

Eccentric cam
(eZ di,rection

adjustment)

XG-NVSXU

I

Convergence and Focus Adjustments at a Glance

Adjustment directions

I

Adjustment

Direction

X direction LCD right and left

Convergence Y direction

6Z direction
Z direction LCD optical axis

Focus

6X direction
8Y direction

Definition

Rotation around Z axis

Rotation around X axis
Rotation around Y axis

Direction of LCD panel

LCD top and bottom
LCD turning axis

LCD top-to-bottom flapping
LCD right-to-left flapping

Convergence and Focus Adjustment for the Optical Mechanism

Same as for R and B colors

.

Waded screwdriver

Focus Adjustments the Other Way

Lock screw

a
b

C

Position Related direction

Notch and hole “a” Z and 0X directions
Notch and hole “b”
Notch and hole “c” Z, 6X and 8Y directions

8Y direction

Convergence and Focus Adjusting and Tightening Tools

Tool

Eccentric cam

adjusting wrench

Soecific or General

Specific

Tool code

SDASPN-XGNVl U

Configuration

Eccentric screwdrivel

Hex wrench

Bladed screwdriver

Phillips screwdriver
‘Hex wrench

Specific

General (redesigned)

General

General
General

SDADRiVER-NV4U

SEQLNC-XGNVl U

SEQLNC-XGNV4U

SEQDRiVER-NV1 B

-

-

22

u

t ,

50

For M2.6 pan-head machine screw

1.27mm, preferably use a 70 mm or

longer screwdriver (with a handle).

I

XG-NV5XU

Replacing the LCD panels

Detach the top panel and the optical mechanism unit in advance.

(1) Remove the four prism holder lock screws. Oetach the prism holder from the optical mechanism unit.
(2) Remove the LCD panel lock screws (three each for the R-, G- and B-LCD panels). Detach the LCD panels from the

prism holder.

(3) Mount a new LCD panel in the reverse order of the above steps (1) and (2).

* 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.

SIDE VIEW (from inside)

Lock screw “d”

\

F&B-LCD/

Optical Mecha/nism Unit

Lock screw “d”

/

panel

screws

SIDE VIEW

G-LCD panel
mounting screws

2

0

23

XG-NV5XU

I

Adjusting the optical axis of the mirrors (Ml, M5 and M4/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 ail 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 Ml adjust lever.

(5) Looking at the G image on the screen, turn or slide the Ml 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.

Shielding plate R

M4/M6 adjust lever

/

Lock screws

Lock screws

-J

24

I

XG-NVSXU

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

EEPROM

1

initialization

2 3.3V power 1. Turn on the power.

SUPPlY

1. Turn on the power (make l Make the following settings:
sure the lamp lights up) and

warm up the unit for 15 min-

utes.

2. Connect the digital voltme-

adjustment ter to TP1446.

3 2.5V power

supply
adjustment

4 R drive

1. Turn on the power.

2. Connect the digital voltme- 2.625 V *50 mV.

ter to TP1447.

1. Make the following choice.
Group : A/D
Subject : GAIN
Make sure the GAIN value
is 163.

Adjusting procedure

Press S5001 to call up the process mode and
execute S2 in the SSS menu. Now the system,

with the PC board not included, is initialized. Do

not execute Sl because otherwise the PC board
will be initialized.
To adjust the PC board, follow the instruction in

“Adjusting the PC board”. (See page 30)

l Adjust R1649 so that the voltmeter should read

3.325 V *lOO mV.

0 Adjust PI1652 so that the voltmeter should read

l Using the control switches or the remote controller

buttons, adjust the data so that the signal be-

comes bit-less (noise).

5 B drive

6 G drive

2. Feed the 100% red-only sig­nal. Make the following

choice.
Group : A/D
Subject : R-D

1. Feed the 100% blue-only 0 Using the control switches or the remote controller

signal. Make the following

choice.

Group : A/D
Subject : B-D

1. Feed the 100% green-only l Using the control switches or the remote controller

signal. Make the following
choice. comes bit-less (noise).
Group : A/D
Subject : G-D

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

buttons, adjust the data so that the signal be-

25

XG-NVSXU

I

No. 1 Adjusting point

1 system

RGB

7

black level
signal amplitude

(odd-numbered)

Adjusting

1

1. Make
Group
Subject : Rl-BLK

green,

For

jects Gl-BLK and Gl-

GAIN.

blue,

For

jects Bl -BLK

2. Connect
TPllOl
TP1201
TP1301

conditions

following

the

OUTPUT

:

Rl-GAIN

choose

choose the sub-

and Bl -GAIN.

oscilloscope to

the

for red.

green

for

blue

for

choice:

1

the sub-

Adjusting

Choose

l

nal amplitude to
switches
Next,choose

l

peak level to 3.2

Adjust

l

level to 3.3 f O.lVp-p

tively, for

the subject

or the

the subject

_ ____-__._______

-_-._

JIY

_

4 _

DC

3.2V
(Adjust to 3.4V DC for green and blue.)

signal’s

the

green and blue.

procedure

Rl-GAIN and

Vp-p

kO.1

3.6

remote controller

R-BLK

DC.

1t0.lV

3.6Vp-p
(Adjust

1

for

____--_____.

_.

f

amplitude and

3.4

and

adjust

using the

buttons.

adjust the black

and

3.3Vp-p

to

and

green

maximum

V DC, respec-

0.1

f

the

control

blue.)

sig-

black

8 P

Sample-and-

9

hold pulse
phase
RCK-PHASE

GCK-PHASE
BCK-PHASE

SIGNAL

1. Connect the oscilloscope to
TP1102 for red.

TP1202 for green
TP1302 for

2. Make the following choice:
Group : OUTPUT 2

Subject : PSIG-H

1. Feed the XGA mode 75Hz

black signal.

blue.

: PSIG-L

2. Make the following choice:

Group : OUTPUT 3

Subject : SH-PHASE

(Have the standard level at

8.)
Fix the RCK-, GCK- and

BCK-PHASE settings all to

8.

Adjust the

l

(Adjust

For the green and blue colors, make sure

l

theirwaveforms are

Using the control switches or the remote controller

l

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.

PSIG waveform to the one shown below.

______._ ___________________-----------

PSIG

i:-

with PSIG-H.)

_~GND

1

DC 5.9V DC

2.3V

similar to that of the red color.

7.8V DC

1

(Adjust with PSIG-L.)

26

1 XG-NV5XU

No. Adjusting point

Adjusting conditions Adjusting procedure

10 RGB counter- 1. Feed the black-and-red

voltage (25%) stripe signal (XGA).
adjustment flicker.

2. Make the following choice:
Group

: OUTPUT 3

Subject : RC (R)

11 RGB gradation 1. Feed the green-only

regeneration SMPTE pattern signal.
adjustment

Group : OUTPUT 1
Subject : Gl-BLK

l Using the control switches or the remote controller

buttons, adjust the data in order to minimize the

0 Make the same adjustment for BC (B) and GC (G).

l See if the image is equally adjusted at the center

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

l Adjust the G-GAIN data until the gradation of the

portion @ (95% and 100% white) shown below
can be slightly recognized. Make sure also that
the gradation of the portion @ (0% and 5% black)
is visible.

1lol

12 RGB white 1. Feed the 32-step gray scale

balance signal (XGA).

Group : OUTPUT 1
Subject : Rl-BLK (R)

Bl-BLK (B)

13 Horizontal

center

1. Feed the NTSC mono-

scope pattern signal.

2. Group

: VIDEO 2

Subject : N358-DLY (4)

N443-DLY (0)
PAL-DLY

(0)

SECAM-DLY (0)

Make sure the settings are

as above.

3. Group : VIDEO 1
Subject : NTSC-H

0

0

l Choose the subjects Rl -BLK and Bl -BLK and

0

adjust the black balance of the gradation.

l Using the control switches or the remote controller

buttons, adjust the data to have the same
overscan.

14 Video picture

adjustment

1. Feed the split color bar sig­nal.
Group

: VIDEO 1

Subject : PICTURE

2. Connect the oscilloscope
between pin (2) of P801
and GND.

l Using the control switches or the remote controller

buttons, adjust the black-to-white (100%) level
difference to 2.2 kO.02 Vp-p.

27

j XG-NVSXU

No. Adjusting point

Adjusting conditions

15 Video AGC 1. Feed the split color bar sig-

nal.

: VIDEO 1

: VIDEO 1

16 Video

brightness
adjustment

Group
Subject : AGC

2. Connect the oscilloscope
between pin (2) of P801
and GND.

1. Feed the baseband (split l Using the control switches or the remote controller
color bar) signal. (The ON­AIR signal is not accepted
because of its too much
noise.)
Group
Subject : BRIGHT

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

Adjusting procedure

l Using the control switches or the remote controller

buttons, adjust the black-to-white (100%) level
difference to 1.65 kO.02 Vp-p.

buttons, adjust the setting until the black signal
becomes bit-less and set to -2 point of value.

17 Tint 1. Feed the split color bar sig-

nal.

: VIDEO 1

18 NTSC color

Group
Subject : TINT

2. Connect the oscilloscope to
pin (4) of P801.

1. Feed the split color bar sig-

saturation level nal.

Group : VIDEO 1
Subject : N-COLOR

2. Connect the oscilloscope to
pin (1) of P801.

l Using the control switches or the remote controller

buttons, adjust the data to have the -(B-Y) wave-

form downhill straight.

*.._

. . . .

l Using the control switches or the remote controller

buttons, adjust the difference between the 100%
white portion and the red portion to 0.15 kO.02 Vp-p.
(same as 100% white)

100% White Red

28

1 XG-NVSXU

No. Adjusting point

19 PAL color

Adjusting conditions

1. Feed the PAL color bar sig- l Using the control switches or the remote controller

Adjusting procedure

saturation level nal. buttons, adjust the difference between the 100%

Group : VIDEO 1 white portion and the red portion to 0.36 ti.02 Vp-p.

Subject : P-COLOR

2. Connect the oscilloscope to
pin (1) of P801.

20 SECAM color 1. Feed the SECAM color bar l Using the control switches or the remote controller

100% White Red

..__J_...~.

-7

ll’n

saturation level signal. buttons, adjust the data to have a level difference

Group : VIDEO 1 of 0.50 kO.02 Vp-p between the 100% white
Subject : S-COLOR

2. Connect the oscilloscope to
pin (1) of P801.

portion and the red portion.

100% White Red

_.._4...~.

-7

Al

21 Video white

balance

22 Color

irregularity

correction

position

23 Color

irregularity
correction gain
(in case of
colorirregularity)

24 Color system

performance

check

1. Feed the NTSC mono- @ Using the control switches or the remote controller
scope pattern signal buttons, adjust so that the entire screen looks
Group : VIDEO 2 evenly colorless.
Subject : Rl-GAIN

Bl -GAIN

1. Feed the gray-only RGB

color signal. Set it to R for the right-hand color irregularity and tc

2. Find the color irregularity

position on the screen. l When there is no color irregularity, turn off the

3. Group : NOKO saw-tooth waveform correction on the NOKO-LH
Subject : NOKO-RL

4. Group : NOKO
Subject : NOKO-LH

1. Feed the gray-only RGB

color signal.

1. Receive the color bar sig- l In the process mode and select Ll. Check the color
nal. and tint.

l If the color is irregular, adjust the NOKO-RL data

L for the left-hand one.

data.

l Adjust R4215 to minimize the right-hand and left-

hand color irregularity.

25 Video system

performance
check

26 Audio system

performance
check

1. Receive the monoscope l In the process mode and select L2. Check the pic-

pattern signal. ture, brightness and sharpness.

l In the process mode nad select L3. Check the bass,

treble.

29

XG-NVSXU

I

No. Adjusting point Adjusting conditions

27 RGB 1. Receive the RGB signal.

performance
check

28 Off-timer l In the process mode and select OFF. Make sure that

performance the off-timer starts with “5” (minutes), counts down
check each minute in 1 second, and turns off the set at “0”.

29 Thermistor 1. Heat the thermistor using a l Make sure the “TEMP” is displayed.

performance dryer.
check

30 Automatic 1. Receive the PHASE check l Call the VGA/SVGA/XGA/SXGA mode and make

l In the process mode and select L4. Check the pic-

ture, brightness, red, blue, clock, phase, horizontal

position, and vertical position.

Adjusting procedure

synchronization pattern signal. sure that the clock, phase, horizontal and vertical

positions can be automatically adjusted.

31 IrDA

performance
check

32 Keystone

correction
performance

check

33 Factory settings

l Make sure the IrDA signal can be received.

l Make sure the keystone correction functions well.

l Make the following settings.

i/

ADJUSTING THE PC BOARD (CPCi-0031CEOl. PC I/F Unit)

1. Setting the oscilloscope

Set the range to DC 1 V/div and 5u/div.

2.Connecting the PC interface

1) Connect the PC interface to the projector. Make surethe CON2 (P8404), CON3 (P8502) and CON4
(P8405)connectors are all tight in position.

2) Connect the cable between the computer’s ANALOG OUTPUTterminal and the DSUB (INPUT1 on the
projector)connector.

3) Set the projector’s input selector to the RGBl position.

4) Set the signal generator to the XGA mode (1024 x 768, 60Hz, 32-tone scale). Keep the output amplitude at

7OOmVp-p.

5) Turn on the power.

3. Adjusting the levels and checking the tones

Press the S5001 switch to call up the process mode.

1)

Enter 8 for the SH-PHASE setting on the OUTPUT3 menu.

2)

(Adjust to get the on-screen display characters clearand crisp.)
Using the BRIGHT setting on the OUTPUT1 menu, adjustthe black level at TP8002 to 1.9 V.

3)
Using the ROS setting on the A/D menu, adjust thevoltage at TP8008 (or at pin (2) of IC8011) to 1.7 V.

4)
Using the GOS setting on the A/D menu, adjust thevoltage at TP8009 (or at pin (2) of IC8010) to 1.7 V.

5)
Using the BOS setting on the A/D menu, adjust thevoltage at TP8010 (or at pin (2) of IC8009) to 1.7 V.

6)
Make sure the GAIN setting on the A/D menu is 163.

7)
Using the B-D setting on the A/D menu, adjust the whitelevel at TP8001 to 3.6 V. Make sure also the tone

8)

scale(number of tones) is as specified.

Using the R-D setting on the A/D menu, adjust the whitelevel at TL75 to 3.6 V. Make sure also the tone

9)

scale(number of tones) is as specified.

Using the G-D setting on the A/D menu, adjust the whitelevel at TP8002 to 3.6 V. Make sure also the tone

10)

scale(number of tones) is as specified.
Finally press the S5001 switch again to quit theprocess mode.

11)

30

TROUBLE SHOOTING TABLE

1 Checking the PWB performance 1

XG-NVSXU

Video input in trouble

I

’ Go to “Checking the video unit I

i circuit”.

----,---,____I

I

Feed test pattern signal from
PC.

Is specified cable connected

between PC and projector?

&

Is supply voltage as specified?

I

Yes

V

I Yes

Does image appear?

I

I Through-output circuit in
I trouble.

I

__--------___

No

r----------__q

I

Use specified cable.

I
I

-----_--_-_--I

I

p-----_----__q

I

w

IIyes ,_--__k____--,

f Check the connectors. startina I

-----w-----q I

; Go to “Trouble shooting table I
1 for PC I/F unit ‘I.

I --------_-

+

_ _ _I

f from the PC input circuit.

---_----___- -I

I

! I Go to “Checking the remote I

control”.

I I__--_--__-___I

I
I

I

- I

3i

1 XG-NV5XU

TROUBLE

SHOOTING TABLE (Continued)

1 Checking the video system 1

I

Is the lamp on?

Is specified voltage fed to EA

connectors?

Yes

Are there signal inputs at pins (3) and
(29) of P402?

Yes

No

No

No

I

Go to “Lamp fails to light-up”.

I

------------,--,I

t Check the power circuit and its parts. ,
I

_,-----,-------_I

I

Are there signals at pin (4) of IC401

1

Are there signal outputs at
and (6) of IC816?

I

,____‘!_____ ~~~~~~d~~~~~~;:~f~~O~~d~~~,~~-~

t Go to “Checking IC801

tRGB signa’ Output circuit)“’ 1 , well as switching circuit.

I

tt CheckIC816,IC806and ’ ~_-_~---_---I~_______~___~

I I their peripheral circuits as

I Check the video unit circuit I I Check the oscillation circuit

I 1 their peripheral circuits.

1
I

I

,

t

Checking the video unit circuit

Is there video signal output at pin (7)
of IC6001?

Is there video signal input at IC6004?

I

Yes

Are there signal outputs at pins (6) No
and (8) of IC6004?

Check the low-pass and buffer circuits No
of Cl6002 thru Q6008. Is the signal as
specified?

Yes

------- -------_

I
t ! Go to “Checking IC801 (RGB signal I

output circuit)“.

J

No

I

I Check the IC6001 selector switch, I
I terminal voltage and input circuit.

No _-______ -----___I

I

---em-- --______

I
I
I

- - - - - - - - - - - - - - - -’

I

I
I

----_---_-_-_,---__,I

I
t Check 06002 thru Q6008 and their

1 peripheral circuits.
I

I

I

-----------____J

I

*

Check the low-pass and buffer
circuits of 06009 thru Q6015.

Check IC6004 and its peripheral
circuits (bias).

1
1

1

I

I
,

I

32

TROUBLE SHOOTING TABLE (Continued)

1 Checking IC801 (RGB signal output circuit) 1

No

Are there RGB output waveforms at
pins (31), (32) and (33) of IC801?

No

1 XG-NVSXU

t Go to ‘No color or unusual tone”, “No I
t Y signal” or “Out of sync”.

,,------________I

Are there OUtpUt WaVefOrmS at the
emitters of Ql501, Cl1 502 and
Ql503?

Are A/D outputs of ICl504, ICl505
and ICl506 as specified?

! Go to “Trouble shooting table for PC 1
; I/F unit”.

___---__--------I

Yes

Yes

Checking the chroma and Y signals of IC801 (RGB signal output)

I

I Check the data transfer and other ’
I performance at pins (17) and (18) of I
I video IC801.

_ _ _ _ _ _ _ _ - - - - - - - -t

No

I
, Check ICl501 (amplifier), ICl502 I

, (PGB offset) and their peripheral

, crrcuits.

- - - - - - - - - - - - - - - -’

No

, Check the VCLK, ICl504, ICl505.1
, ICl506 and their peripheral circuits.

- - - - - - - - - - - - - - -

I

I

Are there signal inputs at pins (12)
(Y signal) and (1 S)(chroma signal) of
P402?

Yes

Are there output waveforms at pins

(3)(chroma signal) and (6)
(Y signal)of IC816?

Yes

v

Are there signal inputs at pins (20)
(chroma signal) and (21) (Y signal)
of IC801?

I
, Go to “Checking lC801 (RGB 1

, signal output circuit)“.

--,-,-----------I

No

I

Go to “Checking the video unit

I

circuit”.

I
___,-----,,-----I

No

______---------­I Check the IC816 switching and their ’

I peripheral circuits. If there is no signal
I at pins (9) and (1) of IC616, check 3-D i

I noise reduction circuit (ICSOS).

No , circuit) and its peripheral circuits.

L - - - - - - - - - - - - - - - ’

I

Check IC801 and its peripheral

I

circuits.

I

- - - -

I

__---------- I

:

’

_ _ _ _ _ _ _

I

, Check IC806 (3-D noise reduction 1

-------_--------

I

I
I

33

XG-NV5XU

I

TROUBLE SHOOTING TABLE (Continued)

Checking IC806 (3-D noise reduction circuit) and its peripheral circuits

Are there signal inputs at pins (40)
(Y signal) and (45)(chroma signal) of
IC806?

Are there signal outputs at pins (55) No
(Y signal) and (5l)(chroma signal) of
IC806?

Are there signal outputs at the
emitters of Q817 (Y signal) and Cl910
(chroma signal)?

Yes

_--_-___---__--_

I
, Check IC816 and IC801 (RGB signal 1

, output circuit).

--------,,------I

No

,,-,,-,,_-----,_I

1 their peripheral circuits.

------,,-------,I

No

I

, Check the low-pass circuit around 1
, Q817, Q907 and Q910.

,--,,-,,------__I

I

No color or unusual tone (NTSC, PAL)

Is there chroma signal input at pin
(20) of IC801?

NO

I

Are there signal outputs at pins
(46)(&Y) and (45)(B-Y) of IC801?

I

CheckIC803,IC814andtheir I

I

peripheral circuits.

I
,,----__,,,__--_I

l Go back to the signal processing

, block.

No _______ -__--_--_I

, Check the oscillation of X801 and

X802, and their peripheral circuits. 1

I
~~~~~~~~~~~~~~~~

I

I

34

TROUBLE SHOOTING TABLE (Continued)

No or unusual Y signal

I

Is there Y signal input at pin (21) of
IC801?

-1

XG-NV5XU

I

I
I

Is there Y signal output at pin (40) of
IC801?

I No

_,_,,,-,___-____t

I
,

, circuits.

IsthereYsignaloutputatpin(17)of No
IC803?

Yes

.---_a-_------___

I

Check IC803 and its peripheral

I

circuits.

I

------------_,__I

----------------

-__-_----------_

I
I
I

I

- - - - - - - - - - - - - - - -

No or unusual horizontal sync

I

Is there horizontal sync pulse output
at pin (56) of IC801?

Is there horizontal sync pulse output

at pin (9) of IC603?

I
l Check IC604 and its peripheral ’

I circuits, and go to “Trouble shooting I
I table for PC I/F unit”.

--------_--_____I

No

I
I
I

_-_-,-----_,__-_I

No

__------_-_-____

I
, Check the pulse shaping circuit of 1

IC602 and lC603.

I

_-_-,-----------I

Go back to the signal processing
block.

Check IC801 and its peripheral

Check IC803 and its peripheral
circuits as well as IC805 (AGC).

Check IC801 and its peripheral
circuits.

I

I

I

I

1

1

I

I

I

No or unusual vertical sync

I

Is there vertical sync pulse output at
pin (4) of IC801?

I

, Check IC604 and its peripheral I
, circuits, and go to “Trouble shooting
,

table for PC I/F unit”.

----,-,_----_-__I

No

I

35

I
l

Check IC801 and its peripheral

I circuits.

----_-----------I

1

XG-NV5XU ]

TROUBLE SHOOTING TABLE (Continued)

Checking the output PWB unit

No

r------- -----r------- ----_

i If there is no signal at SC1501

and X1502, go to the video ’

: _system block.

-------____

+_

+_

I 1 If there is no signal at SC1404 I

1 and SC1405, go to “Trouble ’

I 1 shooting table for PC I/F unit”. t

-I l_____-------_I

I connector or SC5502, go to I
I Checking the power unitblock.

------------- J

#--------------

Are there signal inputs at pin

(47) of ICllOl, IC1201 and
IC1301?

M ’ Check IC1401 and their ’

Yes

1

Are there signal outputs at pins
(17) (19) (21) (Z), (29) and

(31) of ICllOl, IC1201 and
IC1301?

1”

Are there signal outputs at pins
(17) (19) (21) (27) (29) and No

(31) of IC1102, IC1202 and
IC1302?

lt?x______.

I I

peripheral circuits.

I

I

-------------I

No

1

I~______

J I

I Check IC1101,IC1201,IC1301 ,

, and their peripheral circuits. I

L__------,,-- -I

I

I

Are there signal inputs at

A

_------------

I

If there is no signal input at
pins (1) and (31) of SC1 101, ,
SC1102andSC1103,check I r_____________

the switching circuit and
amplifier circuit of ICl 101,

IC1201, IC1301, ICllOZ

IC1202, IC1302 and their
peripheral circuits.

+

SCllOl. SC1201 and
SC1 301?

I

I l
, l Checkthe R, G and Bpanels. I

, , _ _ _ _ _ _ _ _ _ _ _ _ _,
I

I

36

Yes

*

Yes

1

I Check IC1102,IC1202,IC1302 I
, and their peripheral circuits. I

1 -----_------ -l

1

, If,there is no signal input at I

, ptns (15) and (30) of
, SCllOl, SC1102and
I SC1 103, check IC1409
, and their peripheral
, circuits.

------------I

-----1-----,

I

Check IC1406, IC1407, 1

I

IC1408 and their

I
I peripheral circuits.

_----------- 1

9 _---- ------

JI

I
I

I

I

I

TROUBLE SHOOTING TABLE (Continued)

No audio output

I

I

XG-NV5XU

Are there audio signal inputs at pin
(2) of IC141 l?

Are there audio signal outputs at pin No
(2) of P5508?

Are there audio signal outputs at pin No

(6) of IC7301?

I
I If the voltage at pin (2) of IC7301 is

I not as specified, check Q5501,
I Q5502 and their peripheral circuits.

------------__-A

No

Yes

Yes

Yes

I
1 Check IC7301 and its peripheral

I

I circuits, and the SP connectors and
, speakers.

’

---------------A

Checkig the Power Unit

_-----------____

I
, Check the input, the switching circuit

, of lC3303 and lC3304, and their
, peripheral circuit,%3001 ,SC1502,etc. I

___------------J

----------------

’ Check the IC1411 control voltage,and 1
’ its peripheral circuits.

I

_-------------- J

i Check IC7301 and its peripheral
1 circuits.

----------------I

I
I

I

I

I

Which output voltage line fails?

P-FAN Vcc

_______~ -------~

] Replace ICP751. I ’ Replace R752. f

__-----

I
I Replace IC702, T701 or Q704. ,

I

_____--------

J ‘_______J

I

J

Is EA connector disconnected
or loose?

No

Is AC voltage (85-264V)
applied across the PA
connector?

Yes

Yes

collector and emitter of Q752?

-----B-q -------~

I Replace Q752. I ’ Replace PC702. I

------_

Is Q704 open?

Is there short-circuit between

Yes

J ‘_______J

I

No

37

Yes

I Reconnect the EA connector.

L------------ J

No

r-------------

I

L------------

Replace F701.

I

J

XGNV5XU )

~~~~~~____________I

TROUBLE

Are the PC, video and LCP cables as
specified and properly connected?

SHOOTING TABLE (Continued)

No

I

A

I
,

Yes

With the contrast control at maximum,
does the image appear?

1 No

IsthevoltageatCON3(P8502) NO ----------------’

connector as specified?

1 Yes

------- ------__

I
I

Hook up a personal computer.

I

J-

Use the right cables or reconnect the

I

Readjust the video system.

I

I
I

I

----,----,---,--I

Power circuit faulty.

I

I

I

;

Does the image appear?

Is the image as specified?

Is the image’s color as specified?

Yes

i

w

Does the on-screen display function?

Does the remote control function?

End

No

I
, Go to “Checking the clock circuit and I

, its peripheral circuits”.

No ----_---__----__I

I
l Check the sync signal circuit and its

I peripheral circuits.

No _--__--___-___--I

I

Check the video circuit and its

I

peripheral circuits.

I
,--,-----,---,--I

No

I

1 Go to “Checking the OSD circuit and i

I its peripheral circuits”.

-_-__--- ______ -_I

No

-

I
I

Go to “Checking the remote control”. 1

-----_---,----_-I

I
I

I

I

1
I

I

38

1 XG-NVSXU

TROUBLE

v

Is the lamp out of socket?

------ ------

rfltconnect the ’ ;f%place the

I lamp into socket. ’

- ------ L_______l

I

Replace the ballast.

I

__--------em- 1

J

I lamp.

SHOOTING TABLE

Lamp fails to light-up

Yes Turn on the power switch. IS

discharging sound heard from
the lamp?

No

v

Is the ballast cooling fan
running?

I

Is DC 360V voltage applied
between PL connector pins?

Yes Is 2V or higher voltage applied

between pins (1) and (2) of
ballast’s D connector?

Yes

Yes

v

No

(Continued)

NO

I

Check the power circuit.

L----

No

_-_-----

1

Is power EA connector

disconnected?

I

I

Yes

_____-___-- p---m--w---

I Reconnect the

I connector into socket.

L__________l L---------

+

I

I Check the

I microcomputer circuit. _I

’

No

I

I

+

I

39

XG-NV5XU

I

TROUBLE SHOOTING TABLE FOR PC I/F UNIT-1

Checking the clock circuit and its peripheral circuits

I

No

No

,-----__________~

+I X8001 or its peripheral part faulty. I

L---------------l

r---------------

p X8002 or its peripheral part faulty. I

I

---------______ J

r--------------_

X8003 or its peripheral part faulty. I

---------------

r---------------

X8004 or its peripheral part faulty.

--------------_ J

r-------------__

p X8005 or its peripheral part faulty. 1

I

1

I

J

1

,__----- -------_

Check the sync signal circuit and its 1

Are there signals at pins (46) (48)
and (50) of CON2 (P8404)?

I

Are there signals at pins (149) and
(150) of IC8020?

I

S-VGA level or in the video mode?

I

I

Are there signals at pins (26). (28)
and (29) of IC8020?

+

Yes

Yes

Yes

Yes

No

No

I

r’-------------_,

p IC8001 or its peripheral circuit faulty. I

I

-------------__ -1

LCP circuitry faulty.

--------------__I

_----------_____

I

lC8023, lC8034, lC8036 or its

y

peripheral circuit faultv.

I

.

__----------____I

---------------_

lC8025 or its peripheral circuit faulty. I

----------------I

.---------------_

I

I

IC8020 or its peripheral circuit faulty. i

8

----------------I

;

I

I

Are there signals at pins (14) (16) and.
(18) of CON4 (P8405) connector?

I

Yes

Are there signals at pins (168) thru
(172) of lC8029?

I

Are there signals at pins (38) and
(53) of P405?

f Go to “Checking the PLL circuit and

I its peripheral circuits”.

---------_______I

40

lC8029 or its peripheral circuit faulty. I

lC8025 or its peripheral circuit faulty. I

lC8029 or its peripheral circuit faulty. I

I

1 XG-NVSXU

TROUBLE SHOOTING TABLE FOR PC I/F

Checking the PLL circuit and its peripheral circuits

I

Are there signals at pins (6) and (22)
of IC8015?

Is there signal at pin (18) and (19) of

IC8015?

--------_--a____

I

Check the video circuit and its

I

peripheral circuits.

I

------- -.---_ ____ I

No

I
I lC8025 or its peripheral circuit faulty. ,

I

--_---,__--_---,I

No

I
i IC8015 or its peripheral circuit faulty. I

I

------,-----,--,I

I

I

I

UNIT-2

I

Is image as specified at resolution
below S-VGA level?

Hook up a video system. Is the
display as specified?

Yes

No

, Check the VGA video circuit and its
, peripheral circuits.

No __----_---_--___I

Check the video system’s video

I

circuit and its peripheral circuits.

I

----------------I

I

1
1

41

XG-NV5XU 1

TROUBLE

Checking the S­VGA’s red video
circuit and its
peripheral circuits

I

Is there signal at pin (13) of IC8004?

Yes

Is there signal at the base of Q8008?

Is there signal at pin (6) of IC8011

I

Yes

+

Are there signals at Pins (21) thru
(27) and (33) thru (40) of IC801 l?

Yes

Are there signals at TL44 and TL46?

I

Yes

SHOOTING TABLE FOR PC I/F UNIT-3

Checking the VGA’s

red video circuit and
its peripheral
circuits

,

No No

I

--------L-------,

I
I
I

No _----------_____I No

--_____-I,------,

I

I IC8004 or its peripheral circuit faulty. I

No t----__--------__I No

I

t 08008 and Q8009 or there peripheral t
t circuit faulty.

I

No ----_,----------I No

I

LCP circuitry faulty.

+

L --_____- ----____

&

L -------- ----e--q

I

I IC8011 or its peripheral circuit faulty. I

I

No --------------__I

I

I

t lC8025 or its peripheral circuit faulty. I

I

‘------------,...--I

* ---____- -------_

I -------- -----s-q

I

I IC8020 or its peripheral circuit faulty. I
I

--_______-------

,

Is there signal at pin (13) of IC8004?

I
I

Is there signal at the base of Q8008?

, & Is there signal at pin (6) of IC801 l?

I

I

Are there signals at Pins (112) thru
(119) of IC8020?

I I

Are there signals at Pins (69) thru

(73) and (189) thru (192) of IC8020?

I

I

I

Yes

*

1

Yes

I

1

I

Are there signals at pins (1) thru (10) No
of IC8051?

I

Yes

Are there signals at pins (9) and (10) No
of CON4 (P8405) connector?

Yes

_-------L-----___

I CON4 (P8405) connector or output
I

PWEi faulty.

I

----------------

v

I

I lC8029 or its peripheral circuit faulty. I
I

----------------

I
I IC8051 or their peripheral parts faulty. I

I

----------------

42

I

Check the video
system’s red video
circuit and its

i

peripheral circuits

I

No

Are there signals at Pins (112) thru
(119) of IC8020?

I

Yes

1 XG-NVSXU

TROUBLE SHOOTING TABLE FOR PC I/F UNIT-4

Checking the S- Checking the VGA’s
VGA’s green video green video circuit
circuit and its and its peripheral
peripheral circuits

I I

Is there signal at pin (8) of IC8004?

I Yes

Is there signal at the base of Q8006?

Is there signal at pin (6) of ICE01 O?

Are there signals at Pins (21) thru
(27) and (33) thru (40) of ICEOlO?

Yes

ANo ---------------_I

Are there signals at TL45 and TL47?

I

Yes

1

No

---------_____--_
I

I

I

No ---------------_I No

I

-----_-- ------Wm.
I

I

ICE004 or its peripheral circuit faulty. I

No t---------____--_I No

LCP circuitry faulty.

L

I Q8006 and Q8007 or there peripheral 1
I

circuit faulty.

I

No

- - - - - - - -_- - - - - - - ­p

I
I

ICE010 or its peripheral circuit faulty.

I

I L -------- ----m--m,

I

I ICE025 or its peripheral circuit faulty.
I

-------------___

&

circuits

,

No

1s there signal at pin (8) of lC8004?

I

I

Is there signal at the base of Q8006?

Is there signal at pin (6) of ICEOlO?

I
I

Are there signals at Pins (112) thru

No

(119) of IC8020?

I Yes

+

I

I

I

1

I

I

ICE020 or its peripheral circuit faulty. i

I

I

Are there signals at pins (11) thru (20)
of IC8051?

Yes

,

Are there signals at pins (5) and (6) of
CON4 (P8405) connector?

‘l-L- I__-_-_-y_-y_-y_-_yy-_-j

1

-________---_--- I

No

i IC 8029 or its perpheral parts faulty.

I

--------------_- I

1

t ICE051 or its peripheral parts faulty.

I

Check the video

system’s green
video circuit and its
peripheral circuits

_____---L--------,

I CON4 (P8405) connector or output

, PWB faulty.

_______---------

I=
I

No

Yes

I

I

Are there signals at Pins (185) thru
(177) of IC8020?

43

1 XG-NVSXU

TROUBLE

SHOOTING TABLE FOR PC I/F UNIT-5

Checking the S­VGA’s blue video
circuit and its
peripheral circuits

Is there signal at pin (3) of IC8004?

Is there signal at the base of Q8004?

Is there signal at pin (6) of IC8009?

Yes

Are there signals at Pins (21) thru No No

(27) and (33) thru (40) of IC8009?

Are there signals at TL48 and TL49?

Yes

No No

----------------_

I
I
I

No ---____-_-------I No‘

I Yes

I IC8004 or its peripheral circuit faulty. I

I

No -------------___I No

I Q8004 and 08005 or there peripheral 1
I circuit faulty.

- - - - - - - - - - - - - - - -

------_---------~

I
I IC8009 or its peripheral circuit faulty. I
I

No ----------------I

I
l ICE020 or its peripheral circuit faulty. I

I

----------------

I
I IC8020 or its peripheral circuit faulty. I

I

----------------

LCP circuitry faulty.

p

+

p

*

* -------- -------q

I
I

I

’ No

Checking the VGA’s blue video circuit and its peripheral circuits

I

Is there signal at pin (3) of IC8004?

Is there signal at the base of Q8004?

I

Is there signal at pin (6) of IC8009?

Yes

Are there signals at Pins (112) thru
(119) of IC8020?

Yes

1

Are there signals at Pins (74) thru
(83) of IC8020?

Yes

J

Are there signal at pins (21) thru (30) No
of IC8051?

Are there signal at pins (1) and (2) of

#

Yes

I

i CON4 (P8405) connector or output

, PWB faulty.

I
I IC8018 or its peripheral circuit faulty. I
I

No ----------

l
I IC8051 or their peripheral parts faulty. I
I

--_____--------- I

__---- I

44

Check the video

system’s blue video

I

circuit and its
peripheral circuits.

No

Are there signals at Pins (85) thru
(93) of IC8020?

I

Yes

I

I

1 XG-NV5XU

TROUBLE SHOOTING

TABLE FOR PC I/F UNIT-6

Checking the OSD circuit and its peripheral circuits

! ! Display OS;;:; screen.

Are there signals at pins (56) (58)

No

lb=f?.+l~_------;

1 I

Are there signals at pins (34) (35) No
and (36) of lC8046?

Are there signals at pins (16) thru No
(18) of lC8046?

1 lC8036 or its peripheral circuit faulty. ,

I

--------_____,--I

.

I Yes

t lC8029 or its peripheral circuit faulty.

---------------_I

I

I lC8048 or its peripheral circuit faulty. ;

- - - - - - - - - - - - - - - -

1 I(58048 or its peripheral circuit faulty. ,

I

----------------I

I

,

I

I

1 Checking the remote control 1

Run the remote COntrOl. Are there

signals at pin (59) of CON3 (P8502)

Using remote controller, is there
signal at pin (48) of lC8033?

I Yes

,

Using remote controller, is there
signal at pin (45) of lC8033?

Yes

Using remote controller, is there
signal at pin (60) of CON3 (P8502)
connector?

I
I

I

--------------m-l

LCP-side circuit faulty.

No

I

I

----------------I

1

No

I

I
_____----------_I

No

I

I
I

I

_---------------I

I

I

IC8001 circuit faulty.

lC8033 circuit faulty.

lC8033 circuit faulty.

I

i

I

I

45

XG-NVSXU

CHASSIS 7 LAYOUT

OUTPUT UNIT
DUNTK9839DEOl

S-OUT/REG UNIT
DUNTK9873DEOl

PC I/f
CPCI

58031

r

L

.i

C

-

J

~ PWB-C

i I 1

2

3

POWER UNIT

CDENC0284CEOl

PWB-A

4

46

I/

5 I

‘/I BALLAST Uf’

RDENC0275

+

-

r

1

HB

6

7

PC I/F UNIT

CPCI-0031 CEO1

1 XG-NV5XU

INLET UNIT
RUNTK0631 CEZZ

I

SIGNAL UNIT
DUNTK9856DEOl

BALLAST UNIT
RDENC0275CEZZ

I 1

DUNTK9858DEOl

VIDEO UNIT
DUNTK9769DEll

PC TERMINAL UNIT
DUNTK9857DEOl

I 7 8 9 10 11 12 13

47

XG-NV5XU

I

BLOCK DIAGRAM-I

VIDEO UNIT DUNTK9769DEII

-I--

PC-TERMINAL UNIT

I

I

DUNTK9857DEC

OUTPUT UNIT

DUNTKq*3qDEo’ ,‘3

NOlSE RED”CTKJN MEMORY

*c&x

CSTNC

It807

SIGNAL UNIT

DUNTK9656DEOI

j-izlq

r

S-OUT/REG UNIT

DUNTK9873DEOI

IR-DA UNIT

LLJ

DUNTK9858DEOI

-

I

1

2

3

48

4

5 6

7 1

XGNAL UNIT

kJNTK9856DEO

I

XG-NV5XU

I

--

I
/

XG-NVSXU

BLOCK DIAGRAM-2

I

CPCI-003 I CEO I

(RPCI-003 I CEZZI

WI”
XLKF

‘.il!

I

T

r

1

2 3 4 5

6 I

7 1

50

XG-NV5XU

7

8 9 10

11

12

13

51

XG-NVSXU

m

OVERALL WIRING DIAGRAM

H

G

F

OUTPUT

DUNTK9839DEOI

S-OUT/REG

DUNTK9873DEOI

E

D

C

PC I/F

CPCI-003 I CEO I

B

A

1

2 3

4

52

5 6

7

1

I

100

t

1

XG-NVSXU

I

P5503

JUTPUT

dTK9839DEO I

SIGNAL

JNTK9856DEO I

PC-

TERMINAL

D”NTK9857DEOI

‘C I/F

:I-003 I CEO I

7

8

L

9 10 11

53

12

13

XG-NV5XU

DESCRIPTION OF SCHEMATIC DIAGRAM

VOLTAGE MEASUREMENT CONDITION:

1. Voltages at test points are measured at the
supply voltage of AC 120V. Signals are fed by a
color bar signal generator for servicing purpose and

the above voltages are measured with a 20k ohm/V
tester.

WAVEFORM MEASUREMENT CONDI­TION:

1. Waveforms at test points are observed at the supply

voltage of AC 120V. Signals are fed by a color bar
signal generator for servicing purpose.

INDICATION OF RESISTOR & CAPACI-

TOR:

RESISTOR

1. The unit of resistance ‘X2” is omitted.
(K=kQ=lOOO R, M=MR).

2. All resistors are * 5%, unless otherwise noted.
(J= zt 5%, F= f l%, D= zt 0.5%)

3. All resistors are l/lOW, unless otherwise noted.

4. All resistors are Carbon type, unless otherwise

noted.
0: Solid
0: Oxide Film
0: Metal Coating

CAPACITOR

1. All capacitors are pF, unless otherwise noted.
(P=pF=uuF).

2. All capacitors are 5OV, unless otherwise noted.

3. All capacitors are Ceramic type, unless otherwise
noted.

(ML): Mylar (TA): Tantalum
(PF): Polypro Film

8: Cement
6: Special

(ST): Styrol

1 CAUTION:

This circuit diagram is original one, therefore there may be a

slight difference from yours.

SAFETY NOTES:

1. DISCONNECT THE AC PLUG FROM THE AC
OUTLET BEFORE REPLACEING PARTS.

2. SEMICONDUCTOR HEAT SINKS SHOULD BE
REGARDED AS POTENTIAL SHOCK HAZARDS

WHEN THE CHASSIS IS OPERATING.

IMPORTANT SAFETY NOTICE:

PARTS MARKED WITH “A ” (
IMPORTANT FOR MAINTAINING THE SAFETY OF
THE SET. BE SURE TO REPLACE THESE PARTS

WITH SPECIFIED ONES FOR MAINTAINING THE

SAFETYAND PERFORMANCE OF THE SET.

) ARE

54

I

I

WAVEFORMS

XG-NV5XU

55

XG-NV5XU

r-

n SIGNAL UNIT-l/2

H

[DUNTK9856DEOIj

G

F

l-----7

E

D

7‘

:a

1:

i

C

B

A

1

2 3

4

5

6

7

56

XG-NV5XU

I I

I I /

I

I I I

I I

I

7 8

9

I 10 11

12

13 I

57

XG-NVSXU

H IR-DA and SIGNAL UNIT42

1 2 3 4 5

58

6

7

DUNTK9656DEOI

XG-NV5XU

I

II

#

-i

I

I 7 8 9 10 11 12 13

59

XG-NV5XU

W OUTPUT UNIT-M

xc
c:

,‘I 409
POPOVZ I I

15” REGULATOR

xc1410

I I

POOSTZ

5V REGULATOR

1 2

3 4

60

5 6

7

1

XG-NVSXU

I

IC ,402
THC221AF

I 7 8 9 10 11 12 13

61

XG-NVSXU

I

n OUTPUT UNIT-2/5

-

-

I”

1

2 3

4

5

6 7

62

1 XG-NWXU

1 1

rDUNTK9839DEOI /

2v

-

-I

-

1

7

8

9

10

63

11

12

13

XG-NV5XU

n OUTPUT UNIT-3/5

TO O”TP”T 2,5

IDUNTK9839DEO I]

-

I I

I

_

1 2 3 4 5

64

6

7

XG-NVSXU

I

1 C.X*

5

Lv?

I’.,”

t

\.6V

!-

I

I I

(O-0

I

-

-

I 7 8

9 10 11 12

65

13

XG-NVSXU

1 OUTPUT UNIT-4/5

I ’

,

1 2

3 4 5 6

66

7

1

XG-NVSXU

I

7

8 9

10 11

12

13

1

67

XG-NVSXU

!

n OUTPUT UNIT-%

H

G

F

B

I 1

. !

E

I

m

r

D

C

L

A

Ifi1 !

I

1 2

I

’ A k”‘”

3 4 5

68

IDUNTK9839DE011

6

7

XG-NVSXU

c

I I

I I

I I

I

I

I 7 8 9 10 11 12 13

69

XG-NVSXU

n

VIDEO UNIT

-

-

t i

1

2

3

4

5

6

7

70

r

XG-NWXU

I 7

8

9

10 11

71

12

13 I

XG-NV5XU

n PC TERMINAL UNIT

I I

.

\m

11, I. /. .

I ^

1

2

3

4

5

6

7

1

72

1 XG-NVSXU

-J

1

-

-

jDUNTK9857DEO II

I 7 8 9 10 11 12 13

73

XG-NV5XU

n SOUND OUT/REGULATOR UNIT

TO

IC I030

IX2204CE
(POIZTZI I)

I PV-REG

PSLDM4560cEFW

r-------------------------------------------- -

uN_T_ooj___ ________________________

RCNVDOOl2CE

BSI-3.3SJRO

ANALOG

ICIO;

PO05

N0864TA

pzz-

t i 1 2 3 4

74

IC730 I

TDA7056A

SOUND-OUl

____________________

r

-___--_

5 6 7 1

XG-NVSXU

ICI031 IC I032

P005TZI I POOSTZ I I

ANALOG SV-REG

+3.3V OCDC

ITCE ) DTC_44EK 1

------------7

1 ;UNTlOOZ

rYc.l\lr.l\~

ANALOG 5V-REG

II

II

TO

OUTPUT 6/6

I

N0430FJ
PI01 I

I

I 7

8 I

9 10

75

11 12

13

XG-NV5XU

n OPERATION KEY UNIT

CURSOR

A

-1

I LEDlli @j/l

L-_-_-l

LED15

L

LED17

o&

TEMP WARNING IND.

LAMP

-I

IND.

L

l-

L

L

I
I

1 I

2

3

4

5 6

7 1

76

I

LED I

XG-NVSXU

RI

220R

SCREEN

MUTE VOL ENTER

DOWN

AUTO

a

P e,

ADJ

FREEZE

PRESENTATION

LED9

R9
220R

RI2

LED12

220R

1 QSW-Z0062CEZZ 1

7

8

9

10 11

12

13

77

1 XG-NV5XU

1

n INLET and POWER UNIT-A

H

G

F

(POWER) PWB-A

(CDENC0284CEO ‘1

TO

E

D

C

0

BALLAST

3

GND I
I-B I

4-t I

R77l2

2.m * IC704

rl/iOW/l

NJM43 I U

1703
‘SC27 I 2

THIS AREA IS HOT SIDE

A

1

2

3

4 5

78

6

7

I

XG-NV5XU

IC770 I
FA533 I M

7 9

9

10

11

12

13

79

XG-NVSXU

n POWER UNIT-B

PWB-6

[CDENC0284CEO II

r

TO CN707

1-1

2­3
4
5
6­?­0
9
IO­I I
I2

1 THIS AREA IS HOT SIDE 1

1

2 3

4 5 6

7

80

I

XG-NVSXU

I
I

____________________~~~~~~~~~~

I

TO CN756

1755

TO CN7lI

CN

7101

7

8 9

10

81

11

12

13

XG-NVSXU

n POWER UNIT-C

PWB-C

1 CDENC0284CEO Ii

TO CN753

- r-

-

­_

_

_

-

_

_

TO CN710

I

1 2

_
_

_

3

4

5

6

7

82

XG-NV5XU

075 I
2SAI313

1

I

R755
x31(

0752

TO S-OUT/REG

CN75 I

1

‘58

xw

I 7 8 9 10 11 12 13 1

/THIS AREA IS COLD SIDE]

a3

XG-NV5XU

n

PC I/F UNIT-l/8

II.!

I

I

.

IC I

IX3270CE

HD64 I7709

CPCI-003lCEOI )I

(RPCI-003 I CEZZ)
(M/P)

1

A ;

2

3

84

4

5

6

7

XG-NVSXU

-

-

t

-

-

-

-

f

-

s?!

-

-

-

-

-

‘

I

t

7

9 9

10

11

12

13

85

XG-NVSXU

W PC I/F UNIT-2/8

_

_
_

-

-

4

1

I

-

Y

/

I I

I

I

ICPCI-003lCEOI 1

(RPCI-003 I CEZZ)
(M/P)

1 2 I 3

A

4 5 6

86

7

I

XG-NVSXU

I

I

I

7

8

9

10

87

11 12

13

I

XG-NVSXU

n PC I/F UNIT-3/8

1

I I

2

3

4

88

5

6

II II

7

I

XG-NVSXU

I

I

[ CPCI-003 I CEO I 1

(RPCI-003 I CEZZ)
(M/P)

I

7

8

9

10

11

12

A

13

1

89

XG-NVSXU

n PC I/F UNIT-4/8

1

1

ITO 6%

zan

(TOPC

2

[CPCI-003lCEOI 1

(RPCI-003 I CEZZ) (M/P)

“C

22

3

4

5

I-

L

6

7

90

I

C-U

Dym

G-AD/C -

Wcu

-511
rrun

-

XG-NVSXU

I

II >

I I

I -Ill

1

7 8 9

10

91

11 12 13

I

XG-NVSXU

n PC l/F UNIT-5/8

­=

1

2

3

4

5

6

7

I

XG-NVSXU

I 7

8

9 10

d

! ICPCI-003lCEOI ]

(RPCI-003 I CEZZ) (M/P)

v

i­>

11 12

6” ,

A

13

93

XG-NVSXU

H PC I/F UNIT-6/8

ICZO
IX3lO3CE

gmZl(65MHzl

XG-NV5XU

I

ICZO
IX3103CE

gmZ I (65MHzl

7 8 9 I 10 11

95

1 CPCI-003 I CEO I 1

(RPCI-003 I CEZZ)

(M/P)

A

12

13 I

XG-NVSXU

n PC I/F UNIT-7/8

1

2

3

4

5

6

7

96

1 XG-NV5XU

ICPCI-003lCEOI ]

(RPCI-003 I CEZZ)
(M/P)

7

8

9

10

11

12

A

13

97

XG-NV5XU

I

n PC I/F UNIT-8/8

H

G

F

s---

E

D

C

B

1

A

1 2 3 4 I

98

1

I

Icp

(FiPa

5

6 7 1

. .

. . .

. .

. .

XG-NV5XU

. .

99

XG-NV5XU

)

PRINTED WIRING BOARD ASSEMBLIES

IR-DA Unit (Wiring Side)

I

1

2

3

Video Unit (Wiring Side)

4

5

100

6

7