Page 1
DESCRIPTION
SERVICE MANUAL
XG-XV1 E/A
SHARI=
SERVICE-ANLEITUNG
SZ7Kl
XG-XV1 EA
PAL/SECAM/NTSC
SYSTEM
LCD PROJECTOR
LCD PROJEKTOR
MODELS
MODELLE
XG-XVI E/A
,
In the interests of user-safety (Required by safety regulations in some countries) the set should be restored to its original condition and only parts identical to those specified should be used.
Im
lnteresse der Benutzersicherheit (erforderliche Sicherheitsregeln in einigen
Landern) muR
das
Gerat
in seinen
Originalzustand gebracht werden.
AuBerdem
d&fen fur die spezifiziet-ten Bauteile nur identische
Teile
verwendet
werden.
/
CONTENTS
INHALT -\
Page
. SPECIFICATIONS.. ............................................
2
. NOTE TO SERVICE PERSONNEL..
..................
3
.
OPERATION
MANUAL
......................................
4
. REMOVING OF MAJOR PARTS..
......................
9
l
RESETTING THE LAMP OPERATING
HOUR
COUNTER ............................................
14
. THE OPTICAL UNIT OUTLINE..
......................
15
l
COVERGENCE AND FOCUS ADJUSTMENT.. .16
.
VOLTAGE MEASUREMENT
.............................
20
l
ELECTRICAL ADJUSTMENT
..........................
21
*
TROUBLESHOOTING TABLE
.........................
29
l
CHASSIS LAYOUT
..........................................
89
l
BLOCK DIAGRAM
...........................................
91
. OVERALL WIRING DIAGRAM
.........................
95
.
DESCRIPTION OF SCHEMATIC DIAGRAM
....
.97
l
WAVEFORMS
..................................................
98
l
SCHEMATIC
DIAGRAM
...................................
99
l
PRINTED WIRING BOARD ASSEMBLIES..
.
,145
. PARTS LIST
n
ELECTRICAL
PARTS
...............................
157
HCABINET
AND MECHANICAL PARTS..
..
.195
aACCESSORIES
PARTS
...........................
202
n
PACKING
PARTS
.....................................
202
l
PACKING OF THE
SET
.................................
203
Seite
l
TECHNISCHE DATEN
.....................................
45
.
HINWEISE FUR
DAS
WARTUNGSPERSONAL
.................................
46
.
BEDIENUNGSANLEITUNG
.............................
47
.
ENTFERNEN
DER
HAUPTTEILE
....................
52
.
RUCKSTELLUNG
DES
LAMPEN-BETRIEBSSTUNDENZAHLERS
.....
.57
.
UBERS~CHT DER OPT~KE~NHEIT
..................
58
l
EINSTELLUNG VON KONVERGENZ UND
BRENNPUNKT..
...............................................
59
l
SPANNUNGSMESSUNG.................................
63
l
ELEKTRISCHE EINSTELLUNGEN..
.........
.._
....
64
. FEHLERSUCHTABELLE .................................
72’
.
CHASSIS-ANORDNUNG
.................................
89
l
BLOCKSCHALTBILD
.......................................
91
l
GESAMTSCHALTPLAN
...................................
95
.
BESCHREIBUNG
DES
SCHEMATISCHEN
SCHALTPLANS..
..............................................
97
.
WELLENFORMEN
...........................................
98
l
SCHEMATISCHER SCHALTPLAN
..................
99
l
LEITERPLATTENEINHEITIN
.........................
145
l
ERSATZTEILLISTE
n
ELEKTRISCHE
BAUTEILE
......................
157
WCEHAUSE UND
MECHANISCHE
BAUTEILE
................................................
195
n
ZUBEHORTEILE
......................................
202
n
VERPACKUNGSTEILE
............................
202
l
VERPACKEN DES GERATS
.........................
203
SHARP
CQRPORATIOM
Page 2
/
XG-XVlE/A
SDecifications
Product Type
Models
*
Video system
Display method
LCD panel
Lens
Projection lamp
Contrast ratio
*
Video input signal
*
S-video input signal
*
Video (monitor) output signal
*
Horizontal resolution
Audio output
Computer RGB input signal
RS-232C input terminal
Mouse input terminal (for IBM/Mac)
Mouse input terminal (for PC98)
Speaker system
Rated voltage
Rated frequency
Power consumption
Operating temperature
Storage temperature
Cabinet
I/R
Carrier frequency
Laser Pointer of Remote Control
Dimensions (W x D x H)
Weight
Supplied accessories
Replacement parts
LCD Projector
XG-XV1
E/A
PAUSECAMINTSC 3.58lNTSC
4.43
LCD panel x 3, RGB optical shutter method
Panel size:
1.8”
(27.6 [H] x 36.9
[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-I
.6
zoom lens, F2.7 to 3.5, f = 66 to 106 mm
370 W Metal halide
1OO:l
BNC Connector:
VIDEO, composite video, 1 Vp-p, sync negative, 75
n
terminated
RCA Connector:
AUDIO, 0.5 Vrms more than 22 kR (stereo)
4-pin
mini DIN connector
’
Y
(luminance signal):-1
Vp-p,
sync negative, 75 fi terminated
C
(chrominance signal):
Burst 0.286
Vp-p,
75 R terminated
BNC Connector:
VIDEO, composite video, 1
Vp-p,
sync negative, 75
Q
terminated
RCA Connector:
AUDIO, 0.5 Vrms less than 2.2 kQ (stereo)
520 TV lines (video input), 700 TV lines (S-video input)
3
W +
3 W (stereo)
Video Signal:
15-pin
mini D-sub connector (RGB
l),
BNC connector (RGB 2):
RGB separate type analog input: O-O.7
Vp-p,
positive, 75 R terminated
Stereo Minijack:
AUDIO, 0.5 Vrms, more than 22 kR (stereo)
Horizontal sync. signal: TTL level (positive/negative) or composite sync
Q-We only)
Vertical sync. signal:
Same as above
g-pin
D-sub male connector for controlling personal computer
g-pin
D-sub female connector for wireless mouse
g-pin
mini DIN connector for wireless mouse
3” (8 cm) round x 2
AC 200 V-240
V
60150
Hz
535
w
+ 5°C
to
+ 40°C
- 20°C
to
+6O”C
Plastic
40
kHz
Wave length : 670
nm
Max. output : 1
mW
Class II Laser Product
359 x 585 x 208 mm projector only
444 x 585 x 208 mm
incl.
terminal cover
17.0 kg projector only
Remote control unit, Four AA batteries, Extra air filter, RGB signal cable
(3
m),
Macintosh adaptor, Two
BNC/RCA
adaptors, Mouse control cable for IBM
PS/2
(15 cm), Mouse control cable for Mac (15 cm), Mouse control cable (3 m), AC
cord, Terminal cover, Inverting labels, Lens cover (installed)
Remote control
(RRMCGl393CESA),
Air filter
(PFILD0058CEZZ),
RGB
signal cable
(QCNW-491OCEZZ),
Macintosh adaptor
(QPLGJ1512CEZZ),
Mouse control cable for IBM
PS/2 (QCNW-4754CEZZ),
Mouse control cable
for Mac
(QCNW-4755CEZZ),
Mouse control cable
(QCNW-4620CEZZ)
AC
cord
Note: * (for XG-XVlA as well as Australian and
NewZealand
versions of
XG-XV1
E)
Our projector uses LCD (Liquid Crystal Display) panels. These very
This
will
not affect the picture quality or the life expectancy of the unit.
sophrsticated
panels contain 786,432 pixels ( x
RGB) TFTs
(Thin Film
Transistors).
As
wrth
any
hrgh
technology electronic equipment such as large screen TVs,
video systems and/or
vrdeo
cameras, there are certain acceptable tolerances
that the equipment must conform to.
Thus
unit has some inactive TFTs within
acceptable tolerances, which may result in illuminated or inactive dots on the
picture screen.
Specifications are subject to change without notice.
2
Page 3
j
XG-XVlE/A
NOTE TO SERVICE: PERSONNEL
UV-RADIATION PRECAUTION
;///////////////////
The light source, metal halide lamp, in the LCD
projector emits small amounts of UV-Radiation.
AVOID 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.
4
w
/
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
CLMPF0046DE05 rated
63V/37OW.
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.
/
q
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
Q.
1
[Use original replacement only.]
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.
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 exposurem (Fig. 1).
dote:
Please obtain a lens cap before servicing a mod-
els XG-XV1 E/A that is received without one.
LENS CAP
A
Figure 1.
3
Page 4
XG-XV1 E/A
Location of Controls
FRONT VIEW
POWER ON/OFF button
Remote sensor
POWER indicator
LAMP REPLACEMENT
indicator
TEMP. (+--t--
TEfE;E;ATURE WARNING
Carrying handle
Cautions:
Lamp cage cover
(Natural ventilation)
l
The exhaust vent, the lamp cage cover and adjacent areas may be extremely hot during
projector operation. To prevent injury, do not touch these areas until they have sufficiently
Cooling fan
(Intake vent)
cooled.
l
Allow at least 10 cm of space between the cooling fan (exhaust vent) and the other nearest
wall or obstruction.
l
If the cooling fan becomes obstructed, a protection device will automatically turn off the
projector lamp.
This
does not indicate a malfunction. Remove the projector plug from the
wall outlet and wait 10 minutes. Then turn on the power by plugging the cord back in. This
will return the projector to its normal mode.
OPERATION PANEL ON SIDE OF PROJECTOR
-
RI
ACK
. -.
1
MENU ENTER
/A\
lNPl,T :
LENS SCREEN MUTE
VOLUME
SELECT
I
I
MENU
ADJUSTMENT
button
(41, ,WA)
buttons
ENTER
button
LENS
button IvlUTE button
INPUT SELECT
button
SIDE AND REAR VIEW
Note: * (for XG-XV1 A as well as
Australian and NewZealand versions of XG-XV1 E)
*
COMPOSITE
VIDEO INPUT 1
Video: BNC
Audio: RCA
*
S-VIDEO INPUT
(4-pin
mini DIN)
COMPOSITE
*
VIDEO INPUT 2
Video: BNC
Audio: RCA
MAIN POWER
switch
*
COMPOSITE
VI
onal
computer with the
I.
IBM/Mac)
(for NEC in JAPAN)
WIRED REMOTE
CONTROL INPUT
(3.5 mm Mono Minijack)
COMPUTER
AUDIO INPU
(3.5 mm Stereo Minijack)
AUDIO
OUTPUT: RCA
DC 5V 1A OUTPUT
INPUT 2: BNC
IDE0
OUTPUT: BNC
(R, G, B, H(C)-SYNC, V-SYNC)
COMPUTER RGB OUTPUT connector (HD-15)
Notes:
*
The
DC 5V OUTPUT jack cannot supply a current of more than IA.
l
When connecting a Macintosh Series computer that outputs C-SYNC, connect the cable to the COMPUTER RGB 2 INPUT
H-SYNC input terminal.
4
Page 5
/
XG-XVlE/A
Operating the Wireless Mouse Remote Control
The functions of your personal
computer’s mouse have been
built
into
the remote control
enabling
you to
operate your projector
and personal
computer
with
only the remote con-
trol.
1.
Slide the MAIN POWER switch on the side of the unit on.
2.
Press the POWER ON button on the front panel of the remote control to turn the projector power on.
3.
When using the remote control as a wireless mouse, move the MOUSE/ADJUSTMENT sliding switch to the
MOUSE position. When using the remote control to operate the projector, move the MOUSE/ADJUSTMENT
sliding switch to the ADJ. position. To activate the remote control key back-light feature, press the LIGHT button
on the remote control. The colours of the buttons will change as shown in the table at the bottom of this page.
Wireless Mouse Remote Control
FRONT VIEW
TRANSMIT indicator
SIDE VIEW
MUTE
button,
/
POWER ON/OFF
buttons
BLACK SCREEN/
LENS button
RIGHT-CLICWENTER
-
button
INPUT SELECT
-
buttons
INPUT CHECK button
-
MOUSE label
-
MOUSE/ADJUSTMENT
-
switch
LIGHT button
-
Using the remote control
in a dark room
l
Press the
LIGHT
button to turn
on the back-lights for the
operation buttons for about 5
seconds. The back-light
colours
are explained in the table to the
right.
Note:
INPUT SELECT
LIGHT
A-+=
SHARP
LCD PROJECTOR
l
If the MAIN POWER switch on the remote control is left on
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 at least one second.
VOLUME UP-DOWN
buttons
LASER
POINTER/MENU
button
t-
MOUSE/ADJUSTMENT
(4/b),(v/A)
buttons
MAIN POWER switch
of remote control
Note:
When transporting the
remote control, turn off
the MAIN POWER
switch to avoid draining
the batteries.
LEFT-CLICK
button
Remote control handling precautions
l
The laser beam used in this product is harmless when
directed onto the skin, however please be careful not to
project the beam directly into the eyes. Do not stars into
the beam using an optical instrument.
=
Do not expose the remote control to shocks, liquids or
high humidity.
The remote control-may
not
operate normally if exposed
to direct sunlight or other intense light sources. Should
this happen, &position the light
soiree
or the LCD
- ADJ.
label Projector.
When you change the setting of the MOUSE/ADJUSTMENT switch, the
functions of certain buttons on the remote control change. You can tell
.
which function the
button
currently possesses by the colour of its back-
light display.
I
I
I
Button
narqe
Position
of
MOUSE/ADJUSTMENT switch
MOUSE
ADJ.
LASER POINTER/MENU
LASER POINTER (GREEN)
1
MENU (RED)
RIGHT-CLICWENTER
RIGHT-CLICK (GREEN)
ENTER (RED)
MOUSE/ADJUSTMENT
MOUSE (NOT LIT)
ADJ.
q/b, V/A
(NOT LIT)
LEFT-CLICK
ON (NOT LIT)
-
BLACK SCREEN/LENS
BLACK SCREEN (GREEN)
LENS (RED)
POWER ON/OFF
VOLUME UP-DOWN
MUTE
VIDEO 1
VIDEO 2
ON (RED)
DATA
1
DATA 2
INPUT CHECK
5
Page 6
1
XG-XViE/A
TOP VIEW
REMOTE CONTROL
SIGNAL TRANSMITTER
WIRED REMOTE CONTROL INPUT
(3.5 mm Mono Minijack)
Using the optional cable with the
ret$ote
control
l
When the remote control cannot be
u!sed
due to the
range or positioning of the projector (rear projection,
etc.), connect the optional cable from’the Wired
Remote Control Input jack on the remote control to
the Wired Remote Input on the side of the projector.
Note:
l
The signal transmitter does not fun&on when the optional
cable is connected to the remote control.
LASER LIGHT WINDOW
Laser light shines out of
this window.
~~~L*,,~~cL*sE~
1
NE PAS
REGARDER
DANS LE
FAISCEAU
REAR VIEW
remove.
1
Insert the side
tabs into their
slots and press
in the cover
until properly
seated.
Transmission range
1
Reception range
]
Max. distance: 7
m
I
The laser pointer on the remote control emits
a laser beam from the laser light window
shown in the figure to the left. The laser
emitted is a class II laser; therefore, do not
look
into the laser window or shine the laser
beam on yourself or other people. The two
marks to the left are the caution labels for the
laser beam.
Always use the laser pointer at temperatures
between
+5”C
and
+4O”C.
Inserting the Batteries
Remove the battery cover as shown and
insert
four AA
size batteries making sure their polarities match the
(+)
and
(-)
marks inside the battery compartment.
Notes:
Incorrect use of batteries may cause them to leak or burst.
l
Insert
the batteries with the
(+)
and
(-)
polarities as indicated.
l
Remove the batteries if the remote control will not be operated
for an extended period of time.
l
Maintain the batteries in a clean condition.
l
Do not mix different brands of batteries. The life expectancy of
the new batteries will be shortened and the old batteries may
leak.
l
When the batteries have been used up, remove them immedi-
ately to prevent leakage and damage. Leaked battery fluid
may irritate the skin. Remove any battery fluid by wiping with a
cloth.
l
Due to storage conditions and the shelf life of the supplied
batteries, they may run out after a short time. If so, replace
them with new batteries as soon as possible.
Remote control positioning
Use the remote control as shown in the figures on the left.
Note:
l
The signal from the remote control can be reflected off the
screen for easy operation. However, the effective distance of
the signal may differ due to the screen material.
6
Page 7
XG-XVlE/A .
Connection Pin Assignmetns
!
Analog RGB 1 Signal Input and Analog RGB 1 and 2 Output Terminal
: I s-pin mini D-sub female connector
Computer Input
Analog
/
-I
1.
Video input (red)
2.
Video5 input (green)
1
3.10Video input (blue)
6
4.15Reserve input 1
11
5.
Composite (Mac
sync
only)
\
J
6. Earth (red)
7.
Earth (green)
8.
Earth (blue)
9.
Not connected
lO.GND
ll.GND
12.
Reserve input 2
13. Horizontal sync signal
14. Vertical sync signal
15.
Reserve input 3
Aqalog RGB 2 Signal Input : 5
BNC
Computer Input
Analog
R
Video input (red)
G
Video input (green)
B
Video input (blue)
H
Horizontal sync signal, Mac C-sync signal
V
Vertical sync signal
Mouse Input Terminal (for IBM/Mac)
:
g-pin D-sub female connector
5
1
I
I
Pin No.
Signal
1
CD
2
RD
3
SD
r
I
I I
7
4 ER
0l . . . .. 1
0
5
SG
6
DR
\
I I
,
7
RS
9
6
8
cs
9
Cl
Name
Carrier Detect
Receive Data
Send Data
Equipment Ready
Signal Ground
Data Set Ready
Request to Send
Clear to Send
Ring Indicator
II0
Input
Input
output
output
output
output
Input
Input
Reference
Connected to internal circuit
Connected to internal circuit
Connected to internal circuit
Connected to internal circuit
Connected to internal circuit
Not connected
Connected to internal circuit
Connected to internal circuit
Connected to internal circuit
Mouse Input Terminal (for NEC PC98 series for Japan)
:
g-pin mini DIN connector
6
Pin No.
Signal
l/O
8
1
+5v
Input
2
XA Input
3
XB Input
4 YA
Input
5
YB Input
3
6
LEFT Input
7
NC
Input
8
RIGHT Input
9
GND
2
1
Reference
Computer output
Computer output
Computer output
Computer output
Computer output
Computer output
Not connected
Computer output
Computer output
RS-232C terminal
:
g-pin D-sub male connector
Pin No. Signal Name
1
CD
1
5
2
RD
Receive Data
I I
3
SD
Send Data
6 9
9
Cl
I/O
Input
output
output
output
Reference
Not connected
Connected to internal circuit
Connected to internal circuit
Not connected
Connected to internal circuit
Not connected
Connected to internal circuit
Not connected
Not connected
7
Page 8
/
XG-XVlUA
Dimensions
Rear View
Top View
\-
Side View
I
355
I
’
I
,
I
165.5
(Lens extended)
176.8
(Lens housed)
ens at upper shift)
I
Bottom View
8
Front View
[Units: mm]
Page 9
I
XG-XVI E/A
REMOVING OF MAJOR PARTS
1. Removing the Lamp cage unit and Intake cover
I-l.
Remove the intake cover.
1-2.
Remove the screws and detach the lamp cage cover,
l-3. Remove the three screws off the lamp cage unit.
l-4. Pull out the lamp cage unit.
Notes:
. .
l
Before the replacement, turn off the projector’s power button, make sure the cooling fan comes to a complete
stop, and unplug the power cord.
l
The lamp may be still very hot. Turn off the power button, unplug the power cord and wait for at least 1 hour
before staring the job.
l
In fitting the lamp cage unit back into position, make sure the connector is at the top position.
Intake
Lamp Cage Cover
Page 10
1
XG-XVIEIA
2. Removing the front cabinet
2-I.
Remove the four right and
left
screws from the bottom of the front cabinet.
2-2. Gently press down on the hooks A, B, C and D of the top cabinet to unhook; the front cabinet. Detach the
front cabinet.
2-3. Disconnect the remote control connector.
infrared
R/C
Receiver Unit
3. Removing the top and rear cabinets
3-1.
Remove the five screws from the top and bottom of the rear cabinet.
3-2. Disconnect the speaker connector.
3-3. Slide back the top cabinet to separate the top and rear cabinets.
Top Cabinet
Page 11
1
XG-XVlE/A
4. Removing the left side cabinet
4-l.
Put a bladed screwdriver in the rightmost hole of the screws cover. Pull and unlock the right end of the
screws cover, and pull and detach the entire screws cover.
4-2. Remove the twelve side screws.
4-3.
Remove the two screws off the side cabinet.
4-4.
Disconnect the video terminal cover.
4-5. Disconnect the membrane switch connector.
4-6.
Pull down and detach the left side cabinet.
4-7. Remove the two screws off the LED PWB assembly.
(for
XG-XVI
A as well as
Australian and
NewZealand
versions of XG-XV1 E)
Video Terminal Cover
1
(attached only when the video
board unit is not used)
Page 12
XG-XV1 E/A
I
5. Disconnecting the signal and output PWBs
5-1.
Remove the three screws off the optical mechanism assembly.
5-2.
Remove the two screws off the bottom cabinet.
5-3.
Remove the screw off the signal PWB assembly.
5-4. Disconnect the connectors of the signal PWB and output PWB assemblies.
5-5.
Take up and away the PWB assemblies.
PC Terminal Unit
12
Page 13
I
XG-XV1 E/A
6. Removing the power supply and ballast
PWBs
6-l.
Remove
thy
two screws off the AC-SW Unit on the bottom cabinet.
6-2. Remove
th&
four screws off the power/ballast holder (located behind)
6-3. Disconnectithe connectors.
6-4. Take up
anb
away the
PWBs.
13
Page 14
XG-XVI
E/A
I
RESETTING THE LAMP
0PER:ATING
HOUR COUNTER
The unit is designed to keep its power off when
the
lamp has been used
for
1900 and
2000
hours. This is to protect the lamp fixture. Replace the lamp with new one and
take
the
following resetting procedure.
Resetting
the
lamp operating hour
counter
1.
Hold down the “ENTER”,
“ADJ.V”
and
“ADJ.)”
buttons on the unit, and turn on the main power switch
(located above the AC inlet).
2. Now the unit is turned on and the lamp operating hour counter is reset to zero.
“OOOH”
appears on the
screen.
BLACK
LENS SCREEN MUTE
VOLIME
INPUT
SELECT
,
i
ENTER
At3J.V
ADJ.)
14
Page 15
XG-XV1 E/A
THE OPTICAL UNIT OUTLINE
Layout of the optical system
Note: Layout for positioning the optical system.
Dichroic coating
/
Incident polarizing plate
R
I
Projection Lens
Polarizing film
Incident polarizing plate
B
Pre-polarizing film
Pre-polarizing plate
Dichroic coating
(B transmission) .
.
-
I I (R transmission)
Marking
Dichroic coating
RED (R
reflection)
M2
\)I
Relay lens 1
LlrrL:..,.
A
Dichroic coating
1
AL-deposited face
/
Fly-eye lens
coating
Metal-halide lamp
(Light source)
*
The M3 mirrors and the M5 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
;“‘
AR-coating
in the correct directions.
-
Fly-eye lens (incoming light)
-
Protective glass
L
15
Page 16
CQNVERGENCE AND FOCUS ADJUSTMENT
XG-XVI
E/A
I
l
Start
the convergence and.focus adjustments
with
the top cabinet
and
the
signal
shield removed but the power on. Use the
remote
control to
adjust the
image. Take
the
following procedures.
1.
Focusing
the projection
lens
(A)
Replacing all the 3 LCD panels
1.
Before replacing all the 3 LCD panels, project an image on the screen and bring it into focus.
2.
Replace the panels with new ones. But until the focus has been completely readjusted, be careful not to
change the distance between the set and the screen, nor to move the projection lens focus and zoom
rings.
If the focus is readjusted with a different positional relation, the relation between the projection distance
and the screen size
is.affected.
In other words, a short-distance image (40 WIDE, for example) may
get out of the focus range, or a long-distance image (300 WIDE, for example) may come out of focus.
(B) Replacing 1 or 2 of the 3 LCD panels
1.
In adjusting the focus after replacement of one or two LCD panels, project an image on the screen and
turn the projection lens focus ring to get the non-replaced LCD panel into focus.
2.
But until the focus has been completely adjusted for the new LCD panels, be careful not to change the
distance between the set and the screen, nor to move the projection lens focus and zoom rings.
(If the distance has been changed or the projection lens readjusted, repeat the above steps 1 and 2.)
2.
Adjusting the G-LCD
panel
(A) Focus adjustment. (Make this adjustment on the white-only screen.)
1.
Right-and-left focus adjustment
(6Y
direction) .
Loosen the lock screws
“b”
and
“c”
and insert the eccentric screwdriver into the notch and hole
“b”
or
“c”.
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.
1
2.
Top-center-bottom focus adjustment
(9X
and Z directions).
Loosen the lock screws “a” and ‘7 and insert the eccentric screwdriver into the notch and hole “a” and
“c”.
Turn the screwdriver until the top, center and bottom on the screen get into focus. In adjusting this
top-to-bottom focus, temporarily tighten the lock screw
“b”
to fix the 8Y direction adjustment.
3.
Repeat the above steps 1 and 2 to finely adjust the focus. Finally tighten up all the lock screws.
Notes
:
0
Carefully proceed with the focus adjustment because the adjusting directions are correlated.
0
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
l
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
e
Take the same procedure as for the G-LCD panel focus adjustment. Note that the adjustment range is
small in the Z direction. If the convergence is quite different between the B-LCD and G-LCD panels,
roughly adjust the convergence first and then the focus.
(B) Convergence adjustment
l
Use a crosshatch pattern signal for this adjustment.
Make the adjustment just for the
G-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 8Z directions.
(3) Finally tighten up the convergence lock screw
“d”.
16
Page 17
I
XG-XV1 E/A
Notes
:
@ The eccentric cam is used for convergence adjustment. This means that the cam’s turning and the linear
movement are not always uniform.
0
This model is not equipped with the LCD image adjustment mechanism. This is because the dichroic
prism is used for image formation. When the LCD panels all get into the best focus, the images are
almost completely converged.
Convergence and Focus Adjustments
TOP VIEW
R-LCD
Mechanism
SIDE VIEW
G-LCD panel
mounting screws
G
adjusting plate
\
Lock screws
“c”
SIDE VIEW
Eccentric cam
(Y
direction adjustment)
Eccentric cam
(X direction adjustment)
Eccentric cam
(6Z
direction adjustment)
17
Page 18
XG-XVI
E/A
Convergence and Focus Adjustments at a Glance
Adiustment directions
1
Adiustment / Direction
1
Definition
I
Direction of LCD
oanel
1
I
X
direction
/
LCD right and left
Convergence Y direction
LCD top and bottom
BZ
direction Rotation around Z axis LCD turnina axis
I
Z
direction LCD optical axis
Focus
8X
direction Rotation around X axis
LCD top-to-bottom flapping
8Y
direction Rotation around Y axis
LCD
riqht-to-left flaooina
Convergence
and Focus
Adjustment for
the XG-XV1 E/A Optical Mechanism
Colow
Adjustment Direction
Movement
Position
Adjusting tool
Lock screw Tightening tool
RIB
X
direction
*l
mm Eccentric cam
Eccentric cam adjusting wrench
d
Hex wrench
Convergence Y direction
+l
mm Eccentnc cam
Eccentric cam adjusting wrench
d
Hex wrench
BZ
direction
k2”
Eccentric cam
Eccentric cam
adiustinq
wrench
d
Hex wrench
colours
Eccentric screwdriver,
Focus
G colour Focus
Z
direction
*0.5mm
BX
direction
r2”
Same as for R and B colours
BY
direction +2”
Focus
Adjustments the Other
Way
i Lock
screw
1
Position Related direction
a
Notch and hole “a”
Z
and OX directions
b
Notch and hole
“b”
BY
direction
C
Notch and hole
“c”
Z, 8X and 8Y directions
Convergence
and Focus
Adjusting
and Tightening Tools
r
Tool
Eccentric cam
adjusting wrench
Specific or General Tool code
Configuration
Specific
SDASPN-XGNVI
U
b
8-------
Eccentric screwdriver
Specific
SEQDRiVER-NVlA
Hex wrench
General (redesigned)
SEQLNC-XGNVl
U
2
Phillips screwdriver
General
-
For M2.6 pan-head machine screw
18
Page 19
I
XG-XV1 E/A
Replacing the
LCDs
With the top cabinet removed
(1) Remove three screws off 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
(l), (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.
TOP VIEW
FRONT
7
Lock screws
“c”
G
adjusting plate
\
G-LCD
\
=EI It’d’?
// ’ G-LCD
SIDE VIEW
(
3
) Lock screws
‘7’
R*B
adjusting plate
ROB-LCD
R-B-LCD
panel
mounting screws
VIEW
mounting screws
Page 20
j
XG-XVlE/A
VOLTAGE MEASUREMENT
Measuring procedure: PC
I/F
Unit (CPCL0023CEOl)
1. Feed the XGA pattern
signal
from the signal generator.
2. Using the tester, measure the voltage at each test point on the PC
I/F
PWB.
Tester
?d
PC
I/F
PWB ,
Projector
XGA pattern signal input
Signal generator
20
Page 21
ELECTRICAL ADJUSTMENT
-
2 PC board
1. Feed the XGA black signal.
@
Adjust the signal’s black level to 1.7 V DC and add 10
brightness
2. Connect the oscilloscope to
points to then adjusted value.
adjustment
TP2.
3. Make the following choice:,
Group : OUTPUT2
;
Subject : BRIGHT
-
3
PC board AD
1.
Group : A/D
l
Adjust the positive-pole voltage of C64 to 1.7 V DC.
converter
Subject :
ROS,
l
Similarly, adjust the positive-pole voltages of C57 and
reference
GOS,
C50
in the subjects
GOS
and BOS, respectively.
voltage
BOS.
adjustment
-
4
PC board drive
1. Group :
A/D
l
Make adjustment so that the white peak level of the
adjustment
Subject : Set GAIN
signal becomes 3.6 V DC. At this time, make sure
value at 163.
that the waveform is not deformed at both the black
2.
Feed the XGA and gray scale
side and white side.
signal.
l
Similarly, make adjustment for TP2 and TP3 in the
3. Connect the oscilloscope to
subjects G-D and f B-D, respectively.
TPl.
4. Make the following choice:
Group : A/D
Subject : R-D
XG-XVI
E/A
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.
Note
:
All the adjusted data will be cleared by making the “FACTORY SETTING 1” or “FACTORY SETTING 2”.
Before using the previous data for adjustment, write down the modified data on a notepad or the like and
then make the initialsettings.
No.
Adjusting point
Adjusting conditions Adjusting procedure
1
EEPROM in
1. Turn on the power (make
l
Make the following settings:
initialization
sure the lamp lights up) and
Press
S5001
to call up the process mode and ex-
(Note)
warm up the unit for 15
min-
ecute S2
in the
SSS
menu. Now the system, with the
utes.
PC board not included, is initialized. In order to make
the PC board adjustments (Nos. 2, 3 and
4),
execute
Sl.
If not making those PC board adjustments, do
not execute Sl .
4. Press the sound mute key’
to cancel the
colour
bar test
pattern that is automatically
outputted.
21
Page 22
X&XV1
E/A
No.
Adjusting point
Adjusting conditions
Adjusting procedure
5 RGB 1 system
1.
Make the following choice:
l
Choose the subject RI-BLK and adjust the black peak
black level
Group : OUTPUT 1
level to 2.7
+O.l V
DC using the membrane switch or
signal amplitude
Subject :
RI-BLK
the remote control button.
Rl
-GAIN
l
Next, choose the subject Rl -GAIN and adjust the
sig-
(The colour bar test pattern
nal
amplitude to 3.3
+O.l
Vp-p.
is outputted automatically.)
@
Make the same adjustment for green and blue.
For green, choose the sub-
jects Gl-BLK and
Gl-
GAIN.
For black, choose the
sub-
3.3vp-p
jects
Bl-BLK and Bl -GAIN.
2. Connect the oscilloscope to
1
- -...--__.____-_
pin
(5)(TPllOl)
of SC1101
for red.
i_
_~.__._ ---..---:.-- _.
Pin (5)(TPl201) of
f
SC1
201 for green
Pin (5)(TPl301) of
2.7V
DC
SC1
301 for blue
6
RGB 2 system
1. Make the following choice:
l
Choose the subject
R2-BLK
and adjust the black peak
black level
Group : OUTPUT 2
level to 2.7 +O.lV DC using the membrane switch or
signal amplitude
Subject :
R2-BLK(R),
the remote control button.
R2-GAIN
l
Next, choose the subject R2-GAIN and adjust the
sig-
For green, choose the sub-
nal
amplitude to 3.3
kO.1
Vp-p.
jects G2-BLK
and G2-
GAIN.
For black, choose the
sub-
3.3vp-p
jects B2-BLK and B2-GAIN.
2. Connect the oscilloscope to
l-r
1
.
______._____.__
pin
(6)(TPllO2)
of
SC1
101
for red.
1
_ _
.__._ _-.---_-..__
. .
Pin
(6)(TP1202)
of
f
SC1
201 for green
Pin
(6)(TP1302)
of
t 2.7V
DC
SC1
301 for blue
l
Make the same adjustment for green and blue.
l
Feed the XGA gradation pattern single-colour signal
and make sure that there is no difference in brightness between adjacent vertical lines. If there is a dif-
ference, make fine adjustment by choosing the fol-
lowing subjects.
R2-GAIN
for red
G2-GAIN
for green
B2-GAIN for blue.
7 Sample-and-
hold pulse
phase
1.
Feed the SXGA mode black
l
Using the membrane switch or the remote control
signal.
button, make such adjustment that the characters on
2. Make the following choice:
the adjustment menu are least blurry or overlapped.
Group : OUTPUT 3
(Make adjustment at the moment when the group
Subject : SH-PHASE
name “OUTPUT3 appears and the subject name
“SH-
PHASE” is not yet indicated.)
22
Page 23
XG-XV1
E/A
No.
Adjusting point
Adjusting conditions
Adjusting procedure
8
RGB counter-
1. Feed the black-and-red
0’
Using the membrane switch or the remote control
voltage
(25%) stripe signal (XGA).
button, adjust the
data
in order to minimize the flicker.
adjustment
If such a pattern signal is
0’
Make the same adjustment for BC (B) and GC (G).
not available, select the
:
horizontal stripe signal from
the desktop pattern menu.
2. Make the following choice:
Group : OUTPUT 3
Subject : RC (R)
9 RGB gradation
1.
Feed the XGA green-only
l
Adjust the Gl-GAIN data until the first and second
regeneration
gradation pattern (more
gradations can be slightly recognized. (First
gradu-
adjustment
than 16 steps) signal.
ally raise the Gl-GAIN level until the gradation gets
Group
:
OUTPUT 1
recognized, and then adjust the level by lowering it
Subject : Gl-GAIN
again.)
10 RGB white
balance
1.
Feed the XGA gray scale
l
Choose the subjects Rl -BLK and Bl -BLK and adjust
signal.
the black balance of the gradation. Choose the sub-
Group
:
OUTPUT 1
.jects Rl-GAIN and Bl-GAIN and adjust the gray-to-
Subject : Rl-BLK
while balance (so that the entire screen looks
colour-
Rl -GAIN (R)
i
less).
Bl
-BLK
Bl-GAIN
(B)
’
11 NTSC 4fsc
1.
Choose the group VIDEO 1
l
Turn C450 to have the frequency counter read
to keep the unit without
sig-
14.31818 MHz
_t50
Hz.
nal.
2. Select the colour system
into
N358.
3. Connect the frequency
counter between
TP401
and GND.
12 PAL 4fsc
1. Choose the group VIDEO 1
l
Turn C446 to have the frequency counter read
to keep the unit without
sig-
17.734475 MHz
*50
Hz.
nal.
2. Select the colour system
into PAL.
3. Connect the frequency
counter between
TP401
and GND.
13 Horizontal
center
1. Feed the NTSC mono-
* Using the membrane switch or the remote control
scope pattern signal.
button, adjust the data to have the same overscan.
Group : VIDEO
1
Subject :
NTSC-H
23
Page 24
X&XV1
E/A
No.
Adjusting point
Adjusting conditions
Adjusting proceduri
14 Video picture
1.
Make the following choice:
l
Using the membrane switch or the remote control
adjustment
Group : VIDEO 1
button, adjust the black-to-white (100%) level
differ-
Subject : PICTURE
ence
to 1 .l
+0.02
Vp-p.
2. Connect the oscilloscope
between pin (2) of
P801
and GND.
u
/
~~
-.,:~~vp-p
15 Video AGC
1.
Feed the NTSC split colour
l
Using the membrane switch or the remote control
bar signal.
button, adjust the black-to-white (100%) level
differ-
Group
:
VIDEO 1
ence
to 0.9
+0.02
Vpp.
Subject : AGC
2. Connect the oscilloscope
between pin (2) of
P801
and GND.
16 Video
brightness
adjustment
1. Feed the NTSC black
sig-
l
Using the membrane switch or the remote control
nal.
button, decrease 2 points from the level where the
Group : VIDEO 1
black signal becomes bit-less (dotted).
Subject : BRIGHT
2. Press the membrane switch
or the remote control’s mute
button (to set the gamma
correction to the process
setting).
17 Tint
1.
Feed the NTSC colour bar
l
Using the membrane switch or the remote control
signal.
button, adjust the data to have the -(B-Y) waveform
Group
:
VIDEO 1
downhill straight.
Subject
:
TINT
2. Connect the oscilloscope to
pin (5) of
P801.
18 NTSC colour
1. Feed the NTSC colour bar
l
Using the membrane switch or the remote control
saturation level
signal.
button, adjust the difference between the 100% white
Group
:
VIDEO 1
portion and the red portion to 0.1
3~0.02
Vp-p.
Subject : N-COLOR
2. Connect the oscilloscope to
100% White Red
pin (1) of
P801.
24
Page 25
/
XG-XVlE/A
No.
Adjusting point Adjusting conditions
Adjusting procedure
19 PAL colour
1.
Feed the PAL colour bar
@
Using the membrane switch or the remote control
saturation level
signal.
button, adjust the difference between the 100% white
Group : VIDEO 1
portion and the red portion to 0.1
+0.02
Vp-p.
Subject : P-COLOR
2. Connect the oscilloscope to
100% White Red
pin (1) of
P801.
4
.A .._.
4.
--7-
111_
20 SECAM colour
1. Feed the SECAM colour
l
Using the membrane switch or the remote control
saturation level
bar signal.
button, adjust the data to have a level difference of
Group
:
VIDEO 1 0.1
+0.02 Vp-p
between the 100% white portion and
Subject : S-COLOR
the red portion.
2. Connect the oscilloscope to
pin (1) of
P801.
100% White Red
4
.
..Li..
--7-
m
21 Video white
balance
1. Feed the NTSC mono-
l
Choose the subjects Rl-GAIN and Bl-GAIN, and
scope pattern signal
make adjustment so that the entire screen looks
Group : VIDEO 2
evenly
colourless.
Subject : RI-GAIN
If the black side is not properly adjusted, first readjust
Bl -GAIN
the black side by making the following choice:
Group :OUTPUT
1
Subject : Rl -BLK
Bl
-BLK
Then, make the following choice:
Group : VIDEO 2
Subject : Rl -GAIN
Bl -GAIN
Readjust the related data.
Since the subjects
RI-BLK
and Bl-BLK are common
for the RGB input and VIDEO input, feed the RGB
signal again to adjust the white balance.
22 Colour system
performance
check
1. Receive the colour bar
sig-
l
In the process mode, select Ll . Check the colour and
nal.
tint.
23 Video system
performance
check
1. Receive the monoscope
l
In the process mode, select
L2.
Check the picture,
pattern signal.
brightness and sharpness.
25
Page 26
1
XG-XVlE/A
/
Adjusting point
/
-
1
Adjusting conditions
Adjusting procedure
24 Audio system
l
In the process mode, select L3. Check the bass,
tre-
performance
ble
and balance.
check
25
RGB
performance
check
26 Off-timer
performance
check
27
Lens shift
adjustment
1.
Receive the RGB signal.
1.
Group : LENS
Subject : LENS AUTO
l
In the process mode, select L4. Check the picture,
brightness, red, blue, clock, phase, horizontal
posi-
tion, and vertical position.
l
In the process mode, select OFF. Make sure that the
off-timer starts with
“5”
(minutes), counts down each
minute in 1 second, and turns off the set at
“0”.
l
Adjust the lens center position (for the lens center to
come to the n mark on the front cabinet).
l
When the ENTER key is pressed after choosing the
subject LENS AUTO, the data is fed automatically.
28 Factory settings
l
Execute S4 of the group SSS to make the factory
settings.
26
Page 27
1
XG-XVlE/A
l
Process adjustment mode menu
1) Main menu
ADJ IN Ver. 0.1
A/D
OUTPUT 1
OUTPUT 2
OUTPUT 3
VIDEO 1
VIDEO 2
LINE
sss
PATTE RN
LENS
3) OUTPUT1 menu
OUTPUT
1
Rl
-BLK
128
Rl -GAIN
128
Gl-BLK
128
Gl-GAIN
128
Bl -BLK
128
Bl
-GAIN
128
5) OUTPUT3 menu
’
OUTPUT 3
RC 128
GC
128
BC 128
SH-PHASE
8
RCK-PHASE
8
GCK-PHASE
8
BCK-PHASE
8
L
(Selection button: Mute key)
2) A/D menu
AID
ROS 128
GOS
128
BOS
128
GAIN
128
R-D 128
B-D 128
G-D
128
4) OUTPUT2 menu
OUTPUT 2
Rl
-BLK
128
Rl -GAIN
128
Gl
-BLK
128
Gl-GAIN
128
Bl
-BLK
128
Bl
-GAIN
128
This menu is to
select the
colour
bar pattern display
ON/OFF. (Initial
setting: ON)
6) VIDEO1 menu
!
VIDEO 1
NTSC-H
32
PICTURE
128
AGC
128
BRIGHT
128
TINT
128
N-COLOR
128
P-COLOR
128
S-COLOR
128
This menu is to
select the gamma
setting for normal
operation or for
process operation.
(Initial setting: ON)
This menu is to
select the colour
bar pattern display
ON/OFF. (Initial
setting: ON)
This menu is
tb
select the gamma
setting for usual
operation or for
process operation.
(Initial setting:
OFF)
27
Page 28
XG-XV1 E/A
7) VIDEO2 menu
VIDEO 2
VROS
128
VGOS
128
VBOS
128
R-GAIN
128
B-GAIN
128
1
SSS menu
sss
TIME
s2
s3
s4
s5
LAMP TIME ON
10) PATTERN menu
PATTERN
RGB
CROSS
RAMP
STEP
COLOR
CHR
MANUAL
1
1
Y
11) LENS menu
sss
TIME
s2
s3
s4
S5
LAMP TIME ON
This menu is to
select the gamma
setting for usual
operation or for
process operation
(Initial setting:
OFF)
r
8) LINE menu
LINE
Ll
L2
L3
L4
OFF
TEMP OFF
TEMP CHECK
Lamp on time display
I
Initialization (EEPROM)
I
Initialization (without
j
1
blue background) I
1
Factory
setting
(English)
/
/
Factory setting
1
(Japanese)
I
I
L-------_I
r-------i
/
-
Cyan - Yellow, in solid
and cross-hatch pattern
I
I
Lamp
1
Step (8/l 6)
I
Colour bar
I
Characters (Cross/
Backslash)
1
i
To manual mode
/
r-------l
L-------J
2%
Page 29
/
XG-XVlE/A
TROUBLE SHOOTING TABLE
Power on
Is the right input selected?
Nd
1
Yes
I
----m---m-------
, Select the right input with remote
1
, control.
I
I 1
_------_--------I
Are the PC, video and LCP cables as
No
specified and properly connected?
With the contrast control at maximum
.
I
- - - - - - - - - - - - - - - -
I
Is the voltage at TCI connector as No
specified?
L
I I
.
I
1
Yes
1
-------A-------,
I
I
I
Power circuit faulty.
I
I
_--_---_--------I
/
Hook up a
per,sonal
computer.
)
Does an image appear?
No
Check the clock circuit and its
peripheral
circuits.
Check the video circuit and its
Does the on-screen display function?
‘~‘>~r&i~~d~t;-
- 1
Does the remote control function?
No -----------_----I
I
~--~~k~h~~~,;,~r~--~
--__------em--
----_------_--_-I
I
I
End
I
I
------------,---I
29
Page 30
XG-XVIEIA
1
TROUBLE SHOOTING TABLE
(Continued)
I
Checking the clock circuit and its peripheral
circuits
I
Is pin (3) of
IC8001
oscillating?
X8002 or its peripheral part faulty.
-__-----------__I
Does pin (63) of
IC8001
function?
, Check the sync signal circuit and its
t
I
peripheral circuits.
I
--,-------------I
----------------
Aretheresignalsatpins(141),(145),
No
(148) and (159) of
IC8020?
Yes
I
---------------m,
f
lC8025 or its peripheral circuit faulty.
I
t
-------,--------I
No
Is the input having a resolution below
XGA level or in the video mode?
Yes
Are there signals at pins (238) and
(239) of lC8025?
No
Yes
I
----------__-___
I
41
t IC8020
or its peripheral circuit faulty. ,
I
---_------------I
v
Are there signals at pins
(13), (14)
t
lC8025 or its peripheral circuit faulty.
t
--m----J-------,
----------------
I
I
CheckthePLLcircuitandits
f
I
peripheral circuits,
I
----------------I
30
Page 31
XG-XV1 E/A
TROUBLE SHOOTING TABLE
(Continued)
I
Checking the PLL
circuit
and its peripheral
circuits
1
I
T
--B---_----e---_
I
t
iC8020 or its peripheral circuit faulty. ,
I
--,-------------I
1
Yes
I
Is there signal at pin (236) of
IC8020?
No’
I
I
I
------,1------m,
t
lC8026 or its peripheral circuit faulty.
I
I
1
Yes
0; ----------------I
----------__--__
1 Yes
’ IC8020
or its peripheral circuit faulty.
t
I
Is there signal at pin (15) of
IC8051?
No:
----- ----------_I
I
Yes
I
------_---__--__
I
t IC8015
or its peripheral circuit faulty.
t
I
------_---______I
I
Check the video circuit and its
t
I
peripheral circuits.
I
--,-------------I
I
Is image as specified at resolution
No
above XGA level?
Yes
----------__-___
r
Check the XGA video circuit and its
i
+
;
peripheral circuits.
I
- -
,------------_I
Is image as specified at resolution
No
below XGA level?
Yes
I
B-e--------_---_
,
Check the VGA video circuit and its
t
ip
a video system. Is the
No
as specified?
L
31
Page 32
XG-XVI
WA
TROUBLE SHOOTING TABLE
(Continued)
:
Checking the
XGA’s
red video circuit and
its peripheral
circuits
I
Checking the VGA’s
red video circuit and
its peripheral
circuits
I
Is there signal at pin (13) of
IC8004?
No
+
Is there signal at pin (13) of
IC8004?
----we----------_
Yes
I
I
LCP circuitry faulty.
----No
Is there signal at pin (3) of
IC8008?
‘----------------I
No
+
Is there signal at pin (3) of
IC8008?
Yes
I
I IC8004
or its peripheral circuit faulty.
I
I
---------------__
Is there signal at pin (6) of
IC8011
No ------ -------___I No
.
+
Is there signal at pin (6) of
IC801
l?
----------_______
I
I IC8008
or its peripheral circuit faulty.
I
AretheresignalsatRllAOthru-7
NO
----------------
and Rl 1 BO thru -7 of
lC8025?
+
-------mm-------_
Yes
I
I
IC8011
or its peripheral circuit faulty.
I
--------------__
Are there signals at Rl2AO thru -7
and RI
2B0
thru -7 of
lC8025?
I
I
Yes
I
KC8020
or its peripheral circuit faulty.
f
I
----------------
I
*
Are there signals at Rl thru -10 and No
Gl thru -10 of
IC8030?
Yes
----------------_
I
I
f
lC8025 or its peripheral circuit faulty. ,
I
No
----------------I
--_-------------_
I
I
I IC8030
or its peripheral circuit faulty. ,
I
No
----------------I
Check the video
--__------------_
i
Q13,
Q14 thru Q17 or their peripheral
t
, parts faulty.
system’s red video
I
circuit and its
f
TC2 connector or output PWB faulty.
--__------------
I
,
I
peripheral circuits
---_-----------_
I
No
Are there signals at VBRO thru -7 of
IC8020?
I
I
I R8275,
R8276 or LCP circuitry faulty. ,
1
Yes
I
----------------
0
i!
32
Page 33
I
XG-XV1
E/A
TROUBLE SHOOTING TABLE
(Continued)
Checking the
XGA’s
Checking the VGA’s
green video circuit
green video circuit
and its peripheral
and its peripheral
circuits
circuits
No
Is there signal at pin (8) of
IC8004?
-
Is there signal at pin (8) of
IC8004?
LCP circuitry faulty.
Is there signal at pin (3) of
IC8007?
I
IC8004
or its peripheral circuit faulty.
f
Is there signal at pin (6) of
IC801
O?
-
Is there signal at pin (6) of
IC801 O?
I
IC8007
or its peripheral circuit faulty.
t
AretheresignalsatGllAOthru-7
No
---------‘-------
No
and Gl
180
thru -7 of
lC8025?
I
IC8010
or its peripheral circuit faulty.
I
-------------w-m
Are there signals at Gl2AO thru -7
and
G12BO
thru -7 of lC8025?
_------_-__-----w
I
I
IC8020
or its peripheral circuit faulty.
I
Yes
I
-------e-----e--
l
41
Are there signals at Rl thru -10 and
No
Gl
thru -10 of
IC8031?
---__-------m--v-,
Yes
I
I
v
I
lC8025 or its peripheral circuit faulty.
,
I
- - - - - - - - - - - - - - - -
I
Are there signals at the bases of
Ql9
No
and
Q21?
-----------------
I
I
t lC8031
or its peripheral circuit faulty. ,
I
- - - - - - - - - - - - - - - -
I
Are there signals at pins (5) and (7) of No
TC2?
Check the video
-----m-_--_----D-
;
Q13,
Q18 thru
Q21
or their peripheral
, parts faulty.
I
system’s green
video circuit and its
I
TC2 connector or output
PWB
faulty.
__-----_--_---mm
I
,
peripheral circuits
I
------------__-_
I
Ad/
IC8020?
Are there signals at VBGO thru -7 of
__-----
-L-----e-,
I
I
i R8277,
R8278 or LCP circuitry faulty. ,
Yes
33
Page 34
XG-XV1
E/A
I
TROUBLE SHOOTING TABLE
(Continued)
Checking the
XGA’s
blue video circuit
and its peripheral
circuits
Checking the VGA’s
blue video circuit
and its peripheral
circuits
I
No
Is there signal at pin (3) of
IC8004?
Is there signal at pin (3) of
IC8004?
No
Is there signal at pin (3) of
IC8006?
Is there signal at pin (3) of
IC8006?
I
I
IC8004
or its peripheral circuit faulty.
1
No I_----_-- -------- I No
Is there signal at pin (6) of
IC8009?
Is there signal at pin (6) of
IC8009?
I
I
IC8006
or its peripheral circuit faulty.
I
Are there signals at Bl
1AO
thru -7
and Bl 1 BO thru -7 of
lC802.5?
Yes
I
I
IC8009
or its peripheral circuit faulty.
I
I
_--_-----s-e----
I
I
I
IC8020
or its peripheral circuit faulty.
1
I
_----m------v---
l
Yes
,
v
Are there signals at Rl thru -10 and
No
Gl
thru -10 of lC8032?
_---_---e-------Y
1
Yes
I
I
1 lC8025
or its peripheral circuit faulty.
I
.
I
- - - - - - - - - - - - - -
--
I
Are there signals at the bases of
Q23
No
and Q25?
_---_------------,
I
I lC8032
or its peripheral circuit faulty.
I
I
- - - - - - - - - - - - - - - -
I
Are there signals at pins (1) and (3) of
No
TC2?
Check the video
_____-----------q
Yes
y
i
Q13,
Q22 thru
Q25
or their peripheral
I
system’s blue video
, parts faulty.
I
---m---m
---_____
circuit and its
I
TC2 connector or output PWB faulty.
______----------
I
I
peripheral circuits.
I
--0s----_--_____
I
No
Are there signals at VBBO
thru
-7 of
IC8020?
----_------------,
I
I
1 R8279, R8280
or LCP circuitry faulty.
I
I
_--__--_---M---e
Yes
0
D
34
Page 35
Checking the remote control
Run the remote control. Are there
signals at pins (9) and (39) of
TC2?
No
I
---------------_
I
I
LCD circuitry faulty.
I
I
I
- - - - - - - - - - - - - - - -
I
1 IC8001
or its peripheral circuit faulty. ,
I
XG-XV1
WA
TROUBLE SHOOTING TABLE
(Continued)
1
Checking the OSD circuit
atid
its peripheral circuits
1
Are there signals at pins
(7), (8)
(37)
No
and (38) of
TC2?
Yes
I
_---_------e---y
I
I
LCP circuitry faulty.
I
I
- - - - - - - - - - - - - - - -
I
Are there signals at pins (1) and (2) of
No
lC8037?
I
_---------------
f
lC8025 or its peripheral circuit faulty.
I
I
I
Are there signals at pins
(71),
(74)
No- - -. - - - - - - - - - - - -
-
thru (79) of lC8025?
I
Yes
-------------m-y
I
4
t lC8037
or its peripheral circuit faulty.
;
I
I
--_----
-------_
--------------,-I
I
f
lC8036 or its peripheral circuit faulty.
I
I
----------------I
35
Page 36
XG-XVI
E/A
TROUBLE SHOOTING TABLE
(Continued)
j
I
Checking the video system
I
Is the lamp on?
No
I
-------_-------~
t
I
I
Go to “Checking lamp light-up”.
I
-------_--------I
Is specified voltage fed to EA and EB
No
connectors?
I Yes
I
----------------
t
Check the power circuit and its parts.
;
I
-----_--______--I
Are there signal inputs at pins (9) and
No
(14) of
IC408?
Yes
Are X401 and X402 oscillating?
Are there signal outputs at pins (3)
t
Check the video unit circuit t t Check the oscillation circuit
I
I
(IC6004
and its peripheral t t of
IC401
and
IC402,
and
I
-----------I------------
t circuits).
t t
their peripheral circuits.
t
t
Go to “Checking
IC801
tt CheckIC816,IC806and f
L___________
I
L___________
1
i
tRGB
‘bnal
output
circuit)“.
t t
their peripheral circuits as
I
1
,Iwe,l as
switching
circuit,
L---s-------
----------mm
1
I
Checking the video unit circuit
I
Is there video signal output at pin (7)
No
of
IC6001?
I
---------------_
Yes
I
I
Check the
IC6001
selector switch,
t
+
;
terminal
v.oltage
and input circuit.
No ----.------------
I
Is there video signal input at
IC6004?
r
1
Yes
I
----------______
I
Check the low-pass and buffer
t
I
circuits of Q6009 thru
Q6014.
I
I
---------_______I
Are there signal outputs at pins (6)
No
and (8) of
IC6004?
I
1
Yes
I
I
Check
IC6004
and its peripheral
t
I
circuits (bias).
I
I
---------_______I
Check the low-pass and buffer circuits
No
of Q6002 thru
Q6008.
Is the signal as
specified?
__-----------_-_
Yes
I
Go to “Checking the
IC401
and
f
,
IC402
oscillation circuit and its
t
*
;
peripheral circuit”.
I
I
--------------__
____------------I
t
I
i
Go to “Checking
IC801 (RGB
signal
t
output circuit)“.
I
----------------I
36
Page 37
XG-XV1 E/A
TROUBLE SHOOTING TABLE
(Continued)
Checking the oscillation circuit
Are voltages at
IC401
and
IC402
as
No
specified? Are there signal inputs at
pins (6) and
(7)?
Yes
---------------_
I
Check the +5V line, and
IC408, IC801 l
t
and their peripheral circuits.
I
------------____I
Check the oscillation of X401 and
---------------_I
Is there oscillation waveform output
at pin (1) of
IC403?
14.31818 MHz
No
for NTSC, and 17.73447 MHz for
PAL and SECAM?
I
Check the level of
5pin
switch of
f
f IC403
and its peripheral parts.
t
----------------I
, Check the buffer circuit of Q428
thru t
,
Q430,
and its peripheral circuits,
f
--_----------___I
Checking
IC801
(RGB signal output circuit)
Are there RGB output waveforms at
No
pins
(31),
(32) and (33) of
IC801?
t
Go to “No colour or unusual tone”,
f
‘No Y signal” or “Out of sync”.
I
----------------I
l
performance at pins (17) and (18) of
l
Are
A/D
outputs of
IC1504, IC1505
NO
- - - - - - - - - - - - - - - -’
and
IC1506
as specified?
---w--w--------_
I
Check the VCLK,
IC1504, IC1505,
t
t IC1506
and their peripheral circuits.
1
t
Go to “Checking the clock circuit and
l
its peripheral circuits”.
f
----------------I
----------------I
37
Page 38
XG-XV1 E/A
I
TROUBLE SHOOTING TABLE
(Continued)
Checking the
chroma
and Y signals of
IC801
(RGB signal output)
Are there signal inputs at pins
(12)(Y
No
signal) and (1
S)(chroma
signal) of
P402?
------__----____
Yes
f
Go to “Checking the video unit
f
circuit”.
i
----------------I
Are there output waveforms at pins
(3)(chroma signal) and
(6)(Y
No
signal)of
IC816?
Yes
I
----------------I
f
Go to “Checking
IC801
(RGB signal
t
f
output circuit)“.
I
---------------_I
Checking
IC806
(3-D noise reduction circuit)
and its peripheral circuits
Are there signal inputs at pins
(4O)(Y
signal) and
(45)(chroma
signal) of
No
IC806?
Are there signal outputs at pins
(55)(Y
Are there signal outputs at the
-___-----------_
t
Check
IC816
and
IC801
(RGB signal
f
t
output circuit).
I
--_-------------I
38
Page 39
TROUBLE SHOOTING TABLE
(Continued)
1
No
colour
or unusual tone (NTSC, PAL)
1
Is there chroma signal input at pin
Go back to the signal processing
Are there signal outputs at pins
No ------__--___--_I
(46)(R-Y)
and
(45)(B-Y)
of
IC801?
Yes
---m--------e--_
,
Check the oscillation of X801 and
f
+
,
X802, and their peripheral circuits,
f
----------_---__
--_--------__--_I
t
Check
IC803, IC804
and their
f
, peripheral circuits,
I
--------------__I
1
No
colour
or unusual tone (SECAM)
1
Is there chroma signal input at pin
(20) of
IC802?
No
1
Yes
f
Go back to the signal processing
I
block.
i
.
Are there signal outputs at pins
No
L---------------I
(1
l)(R-Y)
and
(12)(B-Y)
of
IC802?
Yes
I
----------___--_
I
Check the X802 oscillation,
IC802
1
f
and their peripheral circuits,
I
I
--------------__
------~~--~~~-~~I
I
Check
IC803, IC804
and their
t
I
peripheral circuits.
I
----------__----I
No or unusual Y signal
I
Is there Y signal input at pin
(21)
of
No
IC8017
Yes
Go back to the signal processing
I
~~
-~~+,
No
:::,~~:11-1(
Check
IC801
and its peripheral
f
Is there Y signal output at pm
(Ii’)
of
*
I
----------______
, Check
IC811
and its peripheral
1
XG-XVI
E/A
-----__------_-_
I
circuits as well as
IC805 ‘(AGC).
t
- - - - - - - - - - - - - - - -
I
t
Check
IC803
and its peripheral
t
circuits.
I
-----___-----___I
39
Page 40
XG-XV1 E/A
TROUBLE SHOOTING TABLE
(Continued)
No or unusual horizontal sync
I
Is there horizontal sync pulse output
No
at pin (56) of
IC801?
Yes
-------------___
t
Check
IC801
and its peripheral
t
I
v
t
circuits.
I
I
---------------_I
Is there horizontal sync pulse output No
at pin (9) of
IC603?
Yes
-----___----____
,
Check the pulse shapinq circuit of
t
*
t
IC601, IC6b2
and
IC603.
I
I
----------______
-----------_____I
, Check
PC604
and its
Deripheral
I
;
circuits, and go to “Checking the clock
i
, circuit and its peripheral circuits”.
,
-----------____-I
No or unusual vertical sync
Is there vertical sync pulse output at No
pin (4) of
IC801?
Yes
I
---------------_
I
Check
IC801
and its peripheral
t
circuits.
I
I
---------------_
----------------I
t
Check
IC604
and its peripheral
I
, circuits, and go to “Checking the clock
i
,
circuit and its peripheral circuits”.
---------------A
40
Page 41
TROUBLE SHOOTING TABLE
1
XG-XVlE/A
(Continued)
Checking the PWB performance
I
Video input in trouble
1
RGB
input in trouble
1
I
’
Through-output in trouble
Remote control in trouble
t
Go to “Checking the video unit
’
Feed test pattern signal from
f
circuit”.
PC.
i
Go to “Checking the through- 1
I
output circuit”.
Go to “Checking the remote
f
control circuit”.
I___--- -------
1
I-------,-----II-------------l
Is specified cable connected
‘No
between PC and projector?
Yes
r--_---------w
I
I
I
Use specified cable.
I
I---,---------I
No
Is supply voltage as specified?
-
Yes
r------‘------q
I
I
,
Power circuit in trouble.
I
v
I-------------I
No
Does image appear?
r-__---_-----_
t
Check the connectors, starting
t
from the PC unit input circuit.
t
---,---,----.-I
ttGo to “Checking the
clock
circuit and its peripheral
f
I
circuits”.
I
L---------e--
-l
41
Page 42
XG-XV1 E/A
I
TROUBLE SHOOTING TABLE
(Continued)
f
Are there signal inputs at
No
Pl404,
P1405 and SC1501?
NO
Are voltages applied to EA and
-w-e--
r-----
EB connectors?
t
Go to
“Checkrng
the PWB
’
I
Go to “Checking the clock
Yes
I
I
, performance”.
, ,
circuit and its peripheral
i
,
Check the power unit circuit. ,
’
I
circuits”.
I
--_----
----
-_I
I-----
-------
J 1 -mm__ -----w-J
+
Are there signal outputs at pins
(30) and (40) of
lCllO9,
No
IC1209
and IC1309?
Yes
-----------_
;
Check
IC1109, IC1209,
I
t ICl309
and their peripheral
t
Are there signal inputs at pin
No
(16) of
Kllll, IClllO,
ICl210, IC1211,
ICI310
and
lCl311?
-
----- --
I
Check the switching circuit of
Yes
I
ICl104, ICl204,
IC1304and
(
I
their peripheral circuits,,as well
i
I
as the amplifier circuit of
t
v
I
IC1102, IC1202
and
IC1302
I
and their peripheral circuits,
i
Are there signal outputs at pins- - - - - - - - - - - - -
’
(231, (25), (271, (34, (35)
and
(37) of
IClllO, ICllll,
No
lCl210,
IC1211,
ICl310
and
ICl311?
------------
Yes
: Check the input and output
I
r
signals at
IC1106, ICl206
and
t
1 ICl306.
Check also
IClllO,
,
ICllll, IC1210, IC1211,
I
t IC1310, IC1311,
and their
t
penpheral circuits.
I
v
-----_----_--
J
No
Are there signal inputs at
SC1
101, SC1201 and
SC1301?
NO
-------------
----__------
I
If there is no signal input at
I
t
pins (1) and (31) of
SC1
101, ,
, If there is no signal input at
I
I SC1102andSCll03,check
, r __ ___
t
pins (15) and (30) of
the switching circuit and
,
SCllOl, SCllOPand
t
amplifier circuit of ICI 112,
I
1
, t Check the R, G and B panels.
(
, SC1 103, check
lC5509,
I
t
,
t IC1113,
IC1212,
ICl213and
, , _
_
, lC5514, and their
, peripheral circuits.
I
t IC1313,andtheirperipheral
,
----------
_I
------------I
t
circuits.
------_------
I
-------_____
1
Check
IC1406, lC1407, i
t
IC1408 and their
t
peripheral circuits.
I
L-----------
I
42
Page 43
j
XG-XVlE/A
TROUBLE SHOOTING TABLE
(Continued)
I
No audio output
I
I
Are there audio signal outputs at pins
No
(5) and (27) of
X6001?
I
4f
-------------___
f
Check the input, the switching circuit
I
t
of
IC6001
and
IC6002,
and their
t
peripheral circuits.
I
----------------I
1
Are there audio signal outputs at pins 1No
(1)
and (2) of
P1403?
Yes
v
, Check the amplifier of
IC301
and
,
IC302
and their peripheral circuits,
I
, the
IC303
control voltage, the Pi 501
I
, connectors, etc.
Are there audio signal outputs at pins N
O
- - - - - - - - - - - - - - - ’
(4) and (6) of
IC7301?
Yes
I
t
Check
lC7301
and its peripheral
I
I
circuits,
t
I
-------------__-I
I
-------------___
I
---m-----------q
t
If the voltage at pin (7) of
IC7301
is
not as specified, check Q5501,
I
t
Check
lC7301
and its peripheral
t
t
t
t
Q5502 and their peripheral circuits.
’
t
circuits, and the SP connectors and
t
speakers.
I
----------------I
---------m-----J
43
Page 44
XG-XVI
E/A
TROUBLE SHOOTING TABLE
(Continued)
1
Lamp does not light up
1
r
_-------------_
Replace the lamp. Does the new
I
lamp light up?
Lamp was defective.
I
I
----------__-_
-J
No
IS
voltage of over 200V supplied No
across
C1701?
Is
F701
blown out?
I
I
I
Replace
F1701.
--------------
I
No
l
I
I
No
Check
IC2001.
is voltage of over 3V supplied to
pins (1)
thru
(4) of EB connector?
I
Power unit in trouble. Check the
I
J
, output pins of EA, EB and EC
I
----_-------__
connectors for short-circuit or
,
Yes
i
voltage drop.
----__--------
J
I
---_--------___
I
Q1707 or PC1702 defective.
1
Replace it.
----------em--
Is voltage of over IV supplied to
, Beplace the sub PWB or check its
I
, Internal elements.
___-----------
J
I
Checking the throughout circuit
I
I
Is analog output coming from PC?
No
-1”.
I
j ------- *--- ----;
Digital output not acceptable.
,
T
-,-------------_I
Are LCP and monitor interconnected
No
with an appropriate cable?
I Yes
I
---------------_
I
Use an appropriate cable.
I
I
Are LCP and monitor in sync?
No ------------,---I
I
i-------+------y
IC3003, IC3004
or
IC3005
or their
t
peripheral circuits in trouble.
- - - - - - - - - - - - - - - -’
t
IC3001
or its peripheral circuits in
t
trouble.
I
----------------I
44
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