Sanyo PLV-Z2 Service Manual
PRODUCT CODE
1 122 125 00 PLV-Z2 (M4KA)
1 122 126 00 PLV-Z2 (P4KA)
1 122 126 02 PLV-Z2 (P4KC)
REFERENCE NO. SM5110585-00
CONTENTS
Pages
TECHNICAL SPECIFICATIONS ------------------------------------------------------------- 2
SAFETY INSTRUCTIONS --------------------------------------------------------------------- 3
LAMP REPLACEMENT -------------------------------------------------------------------- 4 - 5
INDICATORS AND PROJECTOR CONDITION ----------------------------------------- 6
WARNING INDICATOR ------------------------------------------------------------------------ 7
CLEANING ------------------------------------------------------------------------------------ 8 - 9
DIMENSIONS ----------------------------------------------------------------------------------- 10
PROTECTIONS -------------------------------------------------------------------------------- 11
MECHANICAL DISASSEMBLIES --------------------------------------------------- 12 - 16
OPTICAL PARTS DISASSEMBLIES ----------------------------------------------- 17 - 20
LCD PANEL/PRISM ASS'Y REPLACEMENT------------------------------------------- 21
ADJUSTMENT AFTER PARTS REPLACEMENT-------------------------------------- 22
OPTICAL ADJUSTMENT--------------------------------------------------------------- 23 - 24
ELECTRICAL ADJUSTMENT --------------------------------------------------------- 25 - 32
TEST POINTS AND LOCATIONS --------------------------------------------------------- 32
LOCATIONS OF FAN AND BOARD------------------------------------------------------- 33
CIRCUIT BLOCK DIAGRAM ---------------------------------------------------------------- 34
POWER SUPPLY LINES -------------------------------------------------------------------- 35
POWER SOURCE LINES (IC) ------------------------------------------------------------- 36
TROUBLESHOOTING ------------------------------------------------------------------ 37 - 38
IC BLOCK DIAGRAMS ----------------------------------------------------------------- 39 - 42
ELECTRICAL PARTS LIST ------------------------------------------------------------ 43 - 57
MECHANICAL (OPTICAL) PARTS LIST & ACCESSORIES ----------------- 58 - 63
DIAGRAMS & DRAWINGS
PARTS DESCRIPTION AND READING IN SCHEMATIC DIAGRAM ----------- A2
SCHEMATIC DIAGRAMS ------------------------------------------------------------- A3 - A6
PRINTED WIRING BOARD DIAGRAMS ---------------------------------------- A7 - A10
PIN DESCRIPTION OF DIODE, TRANSISTOR AND IC -------------------------- A11
Multimedia Projector
SERVICE MANUAL
FILE NO.
Model No. PLV-Z2
(U.S.A., Canada, Europe
Asia, Africa, U.K. )
ORIGINAL VERSION
Chassis No. M4K-Z200
(PLV-Z2)
NOTE: Match the Chassis No. on the
unit’s back cover with the Chassis
No. in the Service Manual.
If the Original Version Service
Manual Chassis No. does not
match the unit’s, additional
Service Literature is required. You
must refer to “Notices” to the
Original Service Manual prior to
servicing the unit.
-2-
■ Technical Specifications
● The specifications are subject to change without notice.
● LCD panels are manufactured to the highest possible standards. Even though 99.99% of the pixels are effective, a
tiny fraction of the pixels (0.01% or less) may be ineffective by the characteristics of the LCD panels.
Technical Specifications
0.7” wide TFT Active Matrix type, 3 panels
Multimedia Projector
9.0 lbs (4.1 kg)
14.13" x 3.82" x 10.79" (359mm x 97mm x 274mm)
(not including raised portions)
1280 x 720 dots
2,764,800 (1280 x 720 x 3 panels)
PAL, SECAM, NTSC, NTSC4.43, PAL-M, and PAL-N
H-sync. 15 ~ 80 KHz, V-sync. 50 ~ 100 Hz
Adjustable from 31” to 200”
41 ˚F ~ 95 ˚F (5 ˚C ~ 35 ˚C)
14 ˚F ~ 140 ˚F (-10 ˚C ~ 60 ˚C)
Owner’s Manual
AC Power Cord
Remote Control and Batteries
Video Cable
Projector Type
Net Weight
Dimensions
(W x H x D)
Panel Resolution
Number of Pixels
Color System
Scanning Frequency
Projection Image size
(Diagonal)
Operating Temperature
Storage Temperature
Accessories
LCD Panel System
F 2.04 ~ 2.54 lens with f 21.5 mm ~ 27.7 mm with manual zoom and focus
3.9’ ~ 20.0’ (1.2 m ~ 6.1 m)
135 W
RCA Type x 4 (Video, Y, Pb/Cb, Pr/Cr) and Mini DIN 4 pin x 1 (S-Video)
Projection Lens
Throw Distance
Projection Lamp
Video Input Jacks
DVI-I Terminal (Digital/Analog) (HDCP compatible)
Computer/Video Input Terminal
Mini DIN 8 pin x 1
Service Port Connector
0˚ to 11.8˚
Feet Adjustment
Power Source : AA, UM3 or R06 Type x 2
Operating Range : 16.4’ (5m) / ±30˚
Dimensions : 1.85” x 1.18” x 6.26” (47mm x 30mm x 159mm)
Net Weight : 4.4oz (125g) (including batteries)
Remote Control
480i, 480p, 575i, 575p, 720p, 1035i, and 1080i
High Definition TV Signal
AC 100 ~ 120 V (2.4 A Max. Ampere), 50 / 60 Hz
(The U.S.A. and Canada)
AC 200 ~ 240 V (1.3 A Max. Ampere), 50 / 60 Hz
(Continental Europe and The U.K.)
Voltage and
Power Consumption
-3-
■ Safety Instructions
WARNING:
The chassis of this projector is isolated (COLD) from AC line by using the converter transformer. Primary side of
the converter and lamp power supply unit circuit is connected to the AC line and it is hot, which hot circuit is iden-
tified with the line ( ) in the schematic diagram. For continued product safety and protection of personnel
injury, servicing should be made with qualified personnel.
The following precautions must be observed.
1: An isolation transformer should be connected in the power line between the projector and the AC line before any
service is performed on the projector.
2: Comply with all caution and safety-related notes provided on the cabinet back, cabinet bottom, inside the cabi-
net or on the chassis.
3: When replacing a chassis in the cabinet, always be certain that all the protective devices are installed proper-
ly, such as, control knobs, adjustment covers or shields, barriers, etc.
DO NOT OPERATE THIS PROJECTOR WITHOUT THE PROTECTIVE SHIELD IN POSITION AND PROPERLY SECURED.
4: Before replacing the cabinet cover, thoroughly inspect the inside of the cabinet to see that no stray parts or
tools have been left inside.
Before returning any projector to the customer, the service personnel must be sure it is completely safe to operate without danger of electric shock.
■ SAFETY PRECAUTIONS
■ PRODUCT SAFETY NOTICE
Product safety should be considered when a component replacement is made in any area of the projector.
Components indicated by mark in the parts list and the schematic diagram designate components in which
safety can be of special significance. It is, therefore, particularly recommended that the replacement of the parts
must be made by exactly the same parts.
Eye damage may result from directly viewing the light produced by the Lamp used in this equipment. Always turn
off Lamp before opening cover. The Ultraviolet radiation eye protection is required during this servicing.
Never turn the power on without the lamp to avoid electric-shock or damage of the devices since the stabilizer
generates high voltages(20~25kV) at its starts.
Since the lamp is very high temperature during units operation. Replacement of the lamp should be done at least
45 minutes after the power has been turned off, to allow the lamp cool-off.
■ SERVICE PERSONNEL WARNING
-4-
■ Lamp Replacement
■
Lamp Replacement
■
Lamp Replacement Counter
When the life of the projection lamp of this projector draws to
an end, the LAMP REPLACE indicator lights yellow. If this
indicator lights yellow, replace the lamp with a new one
promptly.
Follow these steps to replace the lamp.
Lamp
Lamp Cover
ORDER REPLACEMENT LAMP
Replacement lamp can be ordered through your dealer. When ordering a projection lamp, give the following information
to the dealer.
● Model No. of your projector : PLV-Z2
● Replacement Lamp Type No. : POA-LMP69
(Service Parts No. 610 309 7589)
For continued safety, replace with a lamp of the same
type. Do not drop a lamp or touch a glass bulb! The
glass can shatter and may cause injury.
Allow a projector to cool, for at least 45 minutes before
you open the Lamp cover. The inside of the projector
can become very hot.
This indicator lights yellow
when the life of the projection
lamp draws to an end.
Top Control
CAUTION
Screw
Turn off the projector and disconnect the AC plug. Allow the
projector to cool for at least 45 minutes.
Loosen 2 screws of the lamp with a screwdriver and pull out the
lamp by grasping the handle.
1
3
Replace the lamp with a new one and tighten the 2 screws back
into position. Make sure that the lamp is set properly. Replace
the lamp cover and tighten the screw.
4
Turn over the projector. Loosen the screw with a screwdriver,
and remove the lamp cover.
2
Connect the AC power cord to the projector and turn on the
projector.
6
Reset the Lamp replace counter.
See “Lamp Replace Counter” on the next page .
5
Handle
CAUTION
Be sure to reset the lamp replace counter after the lamp is replaced. When the lamp replace counter is reset, the LAMP
REPLACE indicator stops lighting.
Turn the projector on, press the MENU button, and the OnScreen Menu will appear. Select the Setting Menu with the
Point Up/Down button and press the Point Right button to
enter the sub-menu.
Select the Lamp counter reset item and then press the
SELECT button. The message "Lamp replace counter
Reset?" is displayed. Choose [Yes] and then press the
SELECT button.
1
2
Another confirmation dialog box appears and choose [Yes] to
reset the Lamp replace counter.
3
NOTE
● Do not reset the Lamp replace counter without implementation of lamp replacement. Be sure to reset the Lamp
replace counter only after replacing the lamp.
Lamp counter reset
POWER
WARNING
LAMP
REPLACE
-5-
■
Lamp Replacement
This projector uses a high-pressure lamp which must be handled carefully and properly. Improper
handling may result in accidents, injury, or create a fire hazard.
● Lamp lifetime may differ from lamp to lamp and according to the environment of use. There is no
guarantee of the same lifetime for each lamp. Some lamps may fail or terminate their lifetime in a
shorter period of time than other similar lamps.
● If the projector indicates that the lamp should be replaced, i.e., if the LAMP REPLACE indicator lights
up, replace the lamp with a new one IMMEDIATELY after the projector has cooled down.
( Follow carefully the instructions in the Lamp Replacement section of this manual. ) Continuous use
of the lamp with the LAMP REPLACE indicator lighted may increase the risk of lamp explosion.
● A Lamp may explode as a result of vibration, shock or degradation as a result of hours of use as its
lifetime draws to an end. Risk of explosion may differ according to the environment or conditions in
which the projector and lamp are being used.
IF A LAMP EXPLODES, THE FOLLOWING SAFETY PRECAUTIONS SHOULD BE TAKEN.
If a lamp explodes, disconnect the projector’s AC plug from the AC outlet immediately. Contact an
authorized service station for a checkup of the unit and replacement of the lamp. Additionally, check
carefully to ensure that there are no broken shards or pieces of glass around the projector or coming out
from the cooling air circulation holes. Any broken shards found should be cleaned up carefully. No one
should check the inside of the projector except those who are authorized trained technicians and who are
familiar with projector service. Inappropriate attempts to service the unit by anyone, especially those who
are not appropriately trained to do so, may result in an accident or injury caused by pieces of broken
glass.
LAMP HANDLING PRECAUTIONS
The LAMP REPLACE indicator will light when the total
lamp used time reaches 3,000 hours. This is to indicate that lamp replacement is required.
The total lamp used time is calculated by using the
below expression;
Total lamp used time = Teco + Tnormal x (1.5)
Teco: used time in the Eco mode
Tnormal: used time in the Eco mode
You can check the lamp replace counter following to
below procedure.
1 Press and hold the POWER ON-OFF button on the
projector or the remote control unit for more than 20
seconds.
2 The projector used time and lamp used time will be
displayed on the screen briefly.
How to check lamp used time
Total lamp used time
Projector used time
Counter
Projector 525H
Lamp
Normal 100H
Eco 375H
Total 525H
-6-
■ Indicators and Projector Condition
Check the Indicators for projector condition.
■
Indicators and Projector Condition
• • • lights green. • • • lights red.
• • • off
• • • flashes green.
✽ When the life of the projection lamp draws to an end, the LAMP REPLACE indicator lights yellow. When this indicator lights yellow,
replace the projection lamp with a new one promptly. Reset the Lamp replace counter after replacement of the lamp.
The Main On/Off switch is off or the AC power cord is unplugged.
The projector is preparing for stand-by and the front cover is closed. Or the
projection lamp is being cooled down. The projector cannot be turned on
until cooling is completed.
The temperature inside the projector is abnormally high. The projector cannot be turned on. When the projector is cooled down enough and the temperature returns to normal, the POWER indicator lights red and the projector can be turned on. (The WARNING . indicator keeps flashing.) Check
and clean the Air filter.
Projector Condition
The projector is ready to be turned on with the POWER ON-OFF button.
POWER
red/green
Indicators
LAMP
REPLACE
yellow
WARNING
red
The projector detects an abnormal condition and cannot be turned on.
Unplug the AC power cord and plug it again to turn on the projector. If the
projector is turned off again, disconnect the AC power cord and contact the
dealer or the service center for service and checkup. Do not leave the projector on. It may cause electric shock or a fire hazard.
✽
✽
✽
✽
✽
The projector is operating normally.
The projector is in the Power management mode.
✽
✽
The projector has been cooled down enough and the temperature returns to
normal. When turning on the projector, the WARNING indicator stops
flashing. Check and clean the air filter.
• • • flashes red.
-7-
■ Warning Indicator
■
Warning Indicator
The WARNING indicator shows the state of the function which protects the projector. Check the state of the WARNING
indicator and the POWER indicator to take proper maintenance.
WARNING
flashing red
TOP CONTROL
The projector is shut down and the WARNING indicator is flashing red
When the temperature inside the projector exceeds the normal
temperature, the projector is automatically shut down to protect the
inside of the projector. The POWER indicator is flashing and the
projector is being cooled down. When the temperature inside the
projector returns to normal, the POWER indicator lights red and the
projector can be turned on.
NOTE
● After the temperature inside the projector returns to normal, the WARNING
indicator still continues to flash. When the projector is turned on again, the
WARNING indicator stops flashing.
Then check the items below.
✓ Did you provide appropriate space for the projector to be
ventilated? Check the installing condition to see if ventilation slots
are not blocked.
✓ Is the projector not installed near the ventilation duct of air-
conditioning equipment which may be hot? Install the projector
away from the ventilation duct of air-conditioning equipment.
✓ Is the air filter clean? Clean the air filter or replace it with a new
one.
TOP CONTROL
The projector is shut down and the WARNING indicator lights red
When the projector detects an abnormal condition, it is automatically
shut down to protect the inside and the WARNING indicator lights red.
In this case, disconnect the AC power cord and reconnect it, and then
turn the projector on once again for check. If the projector is turned off
again and the WARNING indicator lights red, disconnect the AC power
cord and contact the service station for check and repair.
CAUTION
DO NOT LEAVE THE PROJECTOR WITH THE AC
POWER CORD CONNECTED UNDER THE ABNORMAL
CONDITION. IT MAY RESULT IN FIRE OR ELECTRIC
SHOCK.
WARNING
lights red
POWER
WARNING
LAMP
REPLACE
POWER
WARNING
LAMP
REPLACE
-8-
■ Cleaning
■
Cleaning the Air Filter
■
Replacing the Air Filter
Latch
Turn off the projector and disconnect the AC power cord from
the AC outlet.
Turn over the projector and remove the air filter by pulling the
latches on both edges upward.
1
2
The air filter prevents dust from accumulating on the surface of the optical elements inside the projector. Should the air filter
become clogged with dust particles, it will reduce cooling fans’ effectiveness and may result in internal heat build up and
adversely affect the life of the projector. Clean the air filter following the steps below.
Remove dust and dirt with a soft brush. Be careful not to
damage the air filter and do not clean the air filter with water.
When there is much dust and dirt on the air filter, replace it with
a new one. (See below for replacing the air filter.)
3
Put the air filter back into position. Make sure that the air filter is
properly and fully inserted.
4
CAUTION
Do not operate the projector with the air filter removed. Dust
may accumulate on the LCD panel and the projection mirror
degrading picture quality.
Do not put small parts into the air intake vents. It may result
in malfunction of the projector.
RECOMMENDATION
We recommend avoiding dusty/smoky environments when operating
the projector. When using under dusty or smoky conditions, dust may
accumulate on a lens, LCD panels, or optical elements inside the
projector. This condition may degrade the quality of a projected
image.
When the above symptoms are noticed, contact your authorized
dealer or service station for proper cleaning.
Air Filter
After removing the air filter from the projector as described
above, remove the replacement filter from the holder.
Holds the air filter with both hands, and remove the replacement
filter by pulling it up.
1
2
When there is much dust and dirt on the air filter, replace it with a new one following the steps below.
Install a new replacement filter and put the air filter back into the
projector.
3
Replacement Filter
ORDER REPLACEMENT FILTER
Replacement filter can be ordered through your dealer or service
station.
● Replacement Filter Part No. : 610 312 0249
Install the replacement filter securely.
Remove the
replacement filter as
shown this figure.
Holder
-9-
■
Cleaning
■
Cleaning the Projection Lens
■
Cleaning the Projection Cabinet
Disconnect the AC power cord before cleaning.
When the projector is not in use, replace the lens cover.
1
3
2
Follow these steps to clean the projection lens.
Softly wipe the projection lens with a cleaning cloth that contains
a small amount of non-abrasive camera lens cleaner, or use lens
cleaning paper or a commercially available air blower to clean
the lens. Avoid using an excessive amount of cleaner. Abrasive
cleaners, solvents, or other harsh chemicals might scratch the
surface.
Disconnect the AC power cord before cleaning.
1
Softly wipe the projector body with a soft, dry cleaning cloth.
When it is heavily soiled, use a small amount of mild detergent
and finish with a soft, dry cleaning cloth. Avoid using an
excessive amount of cleaner. Abrasive cleaners, solvents, or
other harsh chemicals might scratch the surface.
2
Follow these steps to clean the projector cabinet.
When the projector is not in use, put the projector in the carrying
case to protect it from dust and scratches.
3
-10-
■ Dimensions
■
Dimensions
14.13 (359)
10.79 (274)
Unit : inch (mm)
11.8˚ (Max.)
3.82 (97)
4.52 (114.7)
2.68 (68)
ON-OFF
MENU
POWER
WARNING
LAMP
REPLACE
SELECT
INPUT
-11-
■ Protections
This projector is equipped with the following protections to operate in safety. If the abnormality occurs
inside the projector, it will turn off the projector by operating one of the following protections.
■
FUSE FOR CIRCUIT PROTECTION
The fuse is located on the ass'y-Inlet. When either the
LAMP indicator or the READY indicator is not illuminated,
fuse may be opened. Check the fuse as following steps.
1. Remove the ass'y-Inlet following to “Mechanical
Disassemblies”.
2. Remove the fuse from fuse holder.
3. Check the resistance of fuse by using the tester.
To install the fuse, take reversed step in the above.
It should be used the specified fuse as parts list.
■
OVERHEATING PROTECTION
(The temperature monitor system )
The temperature monitor system is provided to prevents damage of component parts inside the projector from overheat.
■ Thermostat Switch: SW902
This function (thermostat switch SW902) will not operate,
while the temperature monitor is operating normally. If it
has operated, it needs to be reset manually. Disconnect
the AC cord first and investigate the cause of overheating.
After servicing, reset the thermostat switch (SW902) as
shown in a figure.
Fuse
Ass’y Inlet
SW902
-12-
■ Mechanical Disassemblies
1. CABINET - TOP REMOVAL
1. Remove 6 screws to take the Cabinet Top upward off.
3. MAIN BOARD AND THERMAL BARRIER PLATE REMOVAL
1. Remove 7 screws A to take the Main Board upward off.
2. Remove 2 screws B to take the thermal barrier plate
upward off.
Fig. 1
Fig. 3
A
A
A
A
A
A
B
Main Board
Thermal
Barrier
Plate
2. CABINET - FRONT REMOVAL
1. Open the door.
2. Remove a screw to take the Cabinet Front off.
Fig. 2
Cabinet Top
Cabinet Front
Door
[Attention] This LCD projector is used the different kind of screw. The using correct screw is needed to prevent
the damage.
Note: For fixing the Cabinet Top, its
rib should be located in front of
the spacer lens.
Rib
Spacer
Lens
A
B
-13-
■ Mechanical Disassemblies
4. DOOR ASS'Y REMOVAL
1. Remove 6 screws to take the Door Ass'y off.
Note: Can be removed Door itself. See below.
5. DOOR LEG AND DOOR SWITCH BOARD REMOVAL
1. Remove a screw to take each leg off.
2. Slide the Door Switch Board out.
Fig. 4
Door Ass'y
Door
Door Switch Board
Door Leg
Fig. 5
6. AV BOARD REMOVAL
1. Remove 2 screws A to take the AV Ass'y (Board with
Panel) upward off.
2. Remove 4 screws B to take the AV Board off from the
AV Panel.
AV Board
Fig. 6
AV Panel
B
A
A
B
B
B
-14-
■ Mechanical Disassemblies
7. LAMP BALLAST UNIT REMOVAL
1. Remove 4 screws A to take the Filter Holder off.
2. Remove 3 screws B to take the Filter Board off.
3. Remove 3 screws C to take the Inlet Board off.
Filter Board
Fig. 7-1
A
A
A
A
B
B
B
C
Filter Holder
8. OPTICAL UNIT AND FAN REMOVAL
1. Remove a screw A to take the Thermostat Switch
upward off.
2. Remove a screw B to take the Lamp Socket off.
3. Remove 3 screws C to take the Fan Cover off.
4. Remove 8 screws D to take the Optical Unit off.
5. Remove 4 screws E to take the Fan (FAN903) off.
Fig. 8-1
Thermostat
Switch
A
B
C
C
D
D
Lamp Socket
FN903
Inlet Board
Fig. 7-2
Fan
Cover
C
E
Rib
Fig. 8-2
Spacer
Lens
D
D
D
D
D
D
Note: For fixing the Optical Unit, Spacer
Lens should be located in front of
the rib of Cabinet Bottom.
Fig. 8-3
-15-
■ Mechanical Disassemblies
9. POWER BOARD REMOVAL
1. Remove 2 screws A to take the Lamp SW Board off.
2. Remove a screw B and 4 screws C to open the Power
Board Cover and take the R/C Board off.
3. Remove 4 screws D to take the Power Board off.
Note: For fixing Lamp SW Board, insert the guide to the
guide hole of Lamp SW Board and fix the screw of
below figure in the beginning.
Fig. 9
D
R/C Board
D
B
C
C
D
A
C
C
Guide Hole
10. LAMP BALLAST AND FAN REMOVAL
1. Remove 2 screws A to take the Lamp Ballast Unit
upward off.
2. Remove 3 screws B to take the Power Board Holder
off.
3. Remove 4 screws
C to take the Fan (FN901) off.
Fig. 10
A
A
C
B
B
B
C
Lamp Ballast
FN901
Power Board
Power Board
Cover
Lamp SW Board
A
D
Fix in the
beginning.
Power Board
Holder
C
C
Note: Remove the Lamp Cover before fixing the
Lamp SW board to prevent the damage of
Lamp SW board.
-16-
■ Mechanical Disassemblies
11. FANS REMOVAL
1. Remove 2 screws A and 5 screws B to take the Fan
Cover off.
2. Remove a screw C to take the Sensor Board off from
tha Fan Cover.
3. Remove 2 screws D to take the Duct Cover-A off.
4. Remove 2 screws E to take the Duct Cover-B and Fan
(FN902) off.
5. Remove a screw F to take Fan (FN904) or Fan (FN905)
off.
Fig. 11
D
Fan Cover
E
E
A
C
A
D
B
B
FN904
FN902
F
F
Sensor Board
Duct Cover-A
Duct
Duct Cover-B
FN905
12. DRESSING GROUNDING WIRE
The grounding wires should be dressed
as below figure.
-17-
■ Optical Parts Disassemblies
Before Taking this procedure, remove Cabinet Top and Main board following to the “Mechanical
Disassemblies”.
Disassembly requires a 2.0mm hex wrench and a screwdriver.
1. PROJECTION LENS REMOVAL
1. Remove 2 screws A to slide the Lens Spacer and
remove 4 screws B to take the Projection Lens off.
Fig. 1
Projection Lens
Lens Spacer
2. INTEGRATOR LENS REMOVAL
1. Remove 2 screws and pull the Integrator Lens Ass’y
upward.
2. Remove the Stopper and bend four hooks and then
take the Lens off from the Holder.
Integrator Lens
Stopper
Lens Holder
Fig. 2
Integrator Lens Ass’y
Note:
Should be placed the lens as the rugged surface side
of it comes to the holder side.
A
A
B
-18-
■ Optical Parts Disassemblies
3. RELAY LENS REMOVAL
1. Remove 2 screws A and pull the Relay Lens Ass’y
upward.
2. Remove 2 screws B to take the Lens off from the
Holder.
Relay Lens
Relay Lens Ass’y
Fig. 3
A
B
A
B
4. POLARIZED GLASS-IN REMOVAL
1. Remove each screw and pull the Polarized Glass-In
Ass’y upward.
2. Unhook the stoppers and take the glass off upward.
Polarized Grass Ass’y
Polarized
Grass-In
Phase Sheet
Hook
Note:
Should be placed the glass as the film attached side
come to the prism side.
Fig. 4
-19-
■ Optical Parts Disassemblies
5. POLARIZED GLASS-OUT AND WIDE VIEW PLATE REMOVAL
1. Remove 4 screw A and take the LCD Panel/Prism
Ass’y upward from the Optical Unit.
2. Remove each screw B and take the glass off upward.
LCD Panel/Prism Ass’y
Note:
1.
Fix the plate that the mark is located to left and
upper.
R,G: Red marking, B: Blue marking
2. Should be replaced the glass as the film attached
side comes to the LCD panel side.
Fig. 5
Polarized
Grass-Out
Film
Note 2
A
A
A
A
B
6. OPTICAL UNIT TOP REMOVAL
1. Remove Cabinet Top, Cabinet Front, Main Board, AV
Board and Filter Ass'y.
2. Remove 8 screws to take the Optical Unit Top off
upward.
Fig. 6
Wide View
Plate
Note 1
Optical Unit
Top
-20-
■ Optical Parts Disassemblies
7. LOCATIONS IN OPTICAL UNIT
When mounting or assembling the optical parts in the optical unit, the parts must be mounted specified location as shown
in figure below.
6
1
2
3
4
5
7
8
9
10
11
11
12
13
15
14
16
17
18
Marking
Marking
Cut Face
Cut Face
1 Lens (Condenser G)
2 Lens (Condenser R)
3 Prism Beam Splitter (PBS)
4 Condenser Lens (Out)
5 Condenser Lens (B)
6 Relay Lens (In)
7 Relay Lens (Out)
8Integrater Lens (In)
9Integrater Lens (Out)
10 Mirror (R)
11 Mirror (B)
12 Optical Filter (R, G)
13 Optical Filter (UV Cut)
14 Polarized Grass (IN/R)
15 Polarized Grass (IN/B)
16 Polarized Grass (IN/G)
17 Di-chroic Mirror (G)
18 Di-chroic Mirror (R)
Key No. Description
-21-
■ LCD Panel/Prism Ass'y Replacement
1. LCD PANEL/PRISM ASS'Y REMOVAL
1. Remove Cabinet Top and Main Board.
2. Remove 4 screws by a 2.0mm hex wrench to take the
Panel/Prism Ass'y off from the Optical Unit.
Note: Do not replace the LCD panel separately other-
wise it can not obtain proper picture. Do not
touch the prism, the LCD panel and the electrode of flexible cable.
IMPORTANT NOTICE on LCD Panel/Prism Ass'y Replacement
LCD panels used for this model can not be replaced separately. Do not disassemble the LCD Panel/Prism Ass’y.
These LCD panels are installed with precision at the factory. When replacing the LCD panel, should be replaced
whole of the LCD panels and prism ass’y at once.
After replacing LCD Panel/Prism ass’y, please check the following adjustments.
- Check the “Condenser Lens Adjustment” and “Relay Lens Adjustment” following to chapter “Optical
Adjustment”.
- Check the “White Balance Adjustment” and “Common Centre Adjustment” following to chapter
“Electrical Adjustment”.
- Check the white uniformity on the screen.
If you find the color shading, please adjust the white uniformity by using the proper computer and “Color
Shading Correction” software supplied separately. The software can be ordered as follows;
COLOR SHADING CORRECTION
Service Parts No. 645 056 6288 or 645 066 7428
1. Tighten 4 screws by a 2.0mm hex wrench to fix the
Panel/Prism Ass'y to the Optical Unit.
2. LCD PANEL/PRISM ASS'Y ATTACHMENT
LCD
Panel/Prism
Ass'y
-22-
■ Adjustments After Parts Replacement
● : Adjustment necessary ❍ : Check necessary
Condenser Lens Adjustment ❍●
Relay Lens Adjustment ❍●
Contrast Adjustment
R-Contrast adjustment ❍●●
G-Contrast adjustment ❍●●
B-Contrast adjustment ❍●●
Fan Minimum Adjustment ●●
Signal Center Adjustment ●
Reference Adjustment ●
PC Pedestal Adjustment ●
PC Gain Adjustment ●
480p Pedestal Adjustment ●
480p Gain Adjustment ●
480i Gain Adjustment ●
Video Gain Adjustment ●
Common Voltage Adjustment ●●
50% Luminance Adjustment ●●
White Balance Adjustment ❍●
Disassembly / Replaced Parts
LCD/
Prism
Ass’y
Condenser
Lens
Polarized glass
RGB
Optical Adjustments
Electrical Adjustments
Main
Board
Relay
Lens
Power
Board
Wide View
RGB
-23-
■ Optical Adjustment
Before taking optical adjustments below, remove the Cabinet Top and Main Board following to the “Mechanical
Disassemblies”
Adjustments require a 2.0mm hex wrench and a slot screwdriver. When you adjust Integrator lens or Relay lens
adjustment, you need to disconnect some connectors and FPC cables of LCD panels on the main board.
Note:
Do not disconnect connectors on the main board, because the projector can not turn on or operate properly for
adjustment.
[Before Adjustment]
- Input a 100% of black raster signal.
[R/G/B-CONTRAST ADJUSTMENT]
1. Loosen a screw A on the polarized glass mounting base which
you intend to adjust.
2. Turn the polarized glass mounting base as shown in Fig. 1 to
obtain the darkest brightness on the screen.
3. Tighten the screw A to fix the polarized glass mounting base.
Repeat steps 1 to 3 for remaining polarized glasses.
Slot B
Polarized Glass
Mounting Base
A
1. CONTRAST ADJUSTMENT
Fig. 1
B-Polarized Grass
Mounting Base
A
G-Polarized Grass
Mounting Base
A
R-Polarized Grass
Mounting Base
A
Fig. 2
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