Sanyo PLC-WK2500 User manual

Multimedia Projector
SERVICE MANUAL
Original Version
FILE NO.
Model No. PLC-WK2500
U.S.A, Canada,
Europe, U.K, Asia
Brazil
Chassis No. KK2-WK250000
Match the Chassis No. on the rating label of the projector
with the Chassis No. in the Service Manual.
If the Chassis No. in the Original Service Manual does
not match the projector's, additional Service Literature
is required. You must refer to "Notices" to the Original
Service Manual prior to the servicing.
PRODUCT CODE
PLC-WK2500
1 122 553 00 (KK2AC)
1 122 553 04 (KK2EC)
1 122 554 00 (LK2AC)
1 122 554 02 (LK2CC)
1 122 554 03 (LK2DC) REFERENCE NO. SM5111284-00

-2-
Contents
SERVICE MANUAL........................................................ 1
Contents........................................................................ 2
Safety Instructions......................................................... 3
Safety Precautions...................................................... 3
Product Safety Notice................................................. 3
Service Personnel Warning ......................................... 3
Specifications ................................................................ 4
Circuit Protections ......................................................... 5
Thermal switch ........................................................... 5
Lamp cover switch...................................................... 5
Fuse ............................................................................ 5
Warning temperature and power failure protection.... 6
Maintenance.................................................................. 7
Lamp Replacement ....................................................... 9
Lamp replacement...................................................... 9
Resetting the Lamp Counter..................................... 10
How to check Lamp Used Time ................................ 10
Security Function Notice ..............................................11
Resetting procedure ..................................................11
Standby Mode Notice.................................................. 12
Mechanical Disassembly ............................................. 13
Optical Parts Disassembly........................................... 18
Adjustments ................................................................ 24
Adjustments after Parts Replacement...................... 24
Note on Main Board Replacement ........................... 24
Optical Adjustments .................................................... 25
Contrast adjustment ................................................. 26
Condenser Out lens adjustment............................... 27
Relay lens Out adjustment ....................................... 28
Electrical Adjustments................................................. 29
Service Adjustment Menu Operation ....................... 29
Circuit Adjustments .................................................. 30
Test Points and Locations ......................................... 35
Service Adjustment Data Table ................................. 36
Chassis Block Diagrams .............................................. 53
Chassis over view..................................................... 53
System control.......................................................... 54
Lamp control............................................................. 55
Audio circuit .............................................................. 56
Power supply & protection circuit............................. 57
Fan control circuit ..................................................... 58
IIC bus control circuit................................................ 59
Troubleshooting ........................................................... 60
Indicators and Projector Condition............................ 60
No Power .................................................................. 61
No Picture ................................................................. 62
No Sound.................................................................. 63
Control Port Functions ................................................. 64
Scaler I/O Port Functions (PW190)............................ 64
IC Block Diagrams ....................................................... 65
Parts Location Diagrams.............................................. 70
Mechanical Parts List................................................... 77
Electrical Parts List ...................................................... 78
Diagrams & Drawings..................................................A1
Parts description and reading in schematic diagram ...A2
Schematic Diagrams....................................................A3
Printed Wiring Board Diagrams.................................. A11
Pin description of diode, transistor and IC.................A15
Note on Soldering......................................................A16

-3-
Safety Instructions
Safety Precautions
Service Personnel Warning
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 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 (15kV - 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.
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 there
parts must be made by exactly the same parts.
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 identified with the line ( ) in the schematic diagram. For continued product safety and protection of per-
sonnel 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 projec-
tor.
2: Comply with all caution and safety-related notes
provided on the cabinet back, cabinet bottom,
inside the cabinet or on the chassis.
3: When replacing a chassis in the cabinet, always
be certain that all the protective devices are
installed properly, such as, control knobs, adjust-
ment covers or shields, barriers, etc.
DO NOT OPERATE THIS PROJECTOR WITHOUT T
HE PROTECTIVE SHIELD IN POSITION AND PROP
ERLY 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.

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Specifications
This symbol on the nameplate means the product is Listed by Underwriters
Laboratories Inc. It is designed and manufactured to meet rigid U.L. safety stan-
dards against risk of fire, casualty and electrical hazards.
●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.
Mechanical Information
Projector Type Multi-media Projector
Dimensions (W x H x D) 13.13" x 3.98" x 9.72" (333.5mm x 101.0mm x 247.0mm)
(Not including protrusions)
Net Weight 6.4 lbs (2.9 kg)
Foot Adjustment 0˚ to 10˚
Panel Resolution
LCD Panel System 0.59" TFT Active Matrix type, 3 panels
Panel Resolution 1,280 x 800 dots
Number of Pixels 1,024,000 pixels (1,280 x 800 dots)
Signal Compatibility
Color System PAL, SECAM, NTSC, NTSC4.43, PAL-M, and PAL-N
SD/HD TV Signal 480i, 480p, 575i, 575p, 720p, 1035i, and 1080i
Input Scanning Frequency H-sync. 15 kHz–100 kHz, V-sync. 50–100 Hz
Optical Information
Projection Image Size (Diagonal) Adjustable from 40” to 300”
Throw Distance 4.0' - 36.4' (1.2m - 11.1m)
Projection Lens F 2.0 ~ 2.15 lens with f 18.38 mm ~ 22.06 mm with manual zoom and focus
Projection Lamp 215 W
Interface
Video Input Jack RCA Type x 1
Audio Input Jack RCA Type x 2
Computer In 1/S-video In/Component In
/Computer In 2/Monitor Out
/MIC Audio Input Jack Mini Jack (stereo) x 1
Computer In 1/S-video In
/Component Input Jack Mini D-sub 15 pin x 1
Computer In 2
/ Monitor Out Terminal Mini D-sub 15 pin x 1
Control port D-sub 9 pin x 1
Audio Output Jack Mini Jack (stereo) x 1 (variable)
LAN Connection Terminal RJ-45
Audio
Internal Audio Amp 10 W RMS
Built-in Speaker 1 speaker, ø1.6" (40mm)
Power
Voltage and Power Consumption AC 100–120 V (3.6A Max. Ampere), 50/60 Hz (The U.S.A and Canada)
AC 100–240 V (3.6A -2.0A Max. Ampere), 50/60 Hz (For other countries)
Operating Environment
Operating Temperature 41˚F–95˚F (5 ˚C–35 ˚C)
Storage Temperature 14˚F–140˚F (-10˚C–60 ˚C)
Remote Control
Battery AAA or LR03 1.5V ALKALINE TYPE x 2
Operating Range 16.4' (5 m)/±30˚
Dimensions 2.0" (W) x 0.7" (H) x 4.3" (D) (52 mm x 18 mm x 110 mm)
Net Weight 2.37 oz (67 g) (including batteries)

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Lamp cover switch
The lamp cover switch (SW902) cuts off the drive signal to the lamp
circuit when the lamp cover is removed or not closed completely.
After opening the lamp cover for replacing the lamp ass’y, place the
lamp cover correctly otherwise the projector can not turn on.
Thermal switch
There is the thermal switch (SW601) inside of the projector to de-
tect the internal temperature rising abnormally. When the internal
temperature reaches near 85˚C, the thermal switch opens to stop
the operation of the power supply circuit.
When the internal temperature reaches near 55˚C, the thermal
switch returns automatically.
This projector provides the following circuit protections to operate in safety. If the abnormality occurs inside the pro-
jector, it will automatically turn off by operating one of the following protection circuits.
Thermal switch (SW601)
Fuse
Circuit Protections
Fuse
A fuse is located inside of the projector. When the POWER indica-
tor is not lighting, the fuse may be opened. Check the fuse as fol-
lowing steps.
The fuse should be used with the following type;
Fuse Part No.: 323 021 7804
TYPE T6.3AH 250V FUSE
LITTLE FUSE INC. TYPE 21506.3
or
Fuse Part No, : 423 034 4101
TYPE T6.3AH 250V FUSE
Hollyland Co, Ltd. TYPE 50CT063H
How to replace the fuse
1. The fuse is placed on the power board. Remove the cabinet top ,
main board, optical engine and the fan (FN001).
2. Take the fuse off, and replace the new one with the specified type.
Lamp cover switch
(SW902)

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The projector will be automatically turned off when the internal temperature of the projector is abnormally high, or
the cooling fans stop spinning, or the power supplies in the projector are failed.
- If the WARNING indicator is flashing, it may detect the abnormal temperature inside the projector. Check the follow-
ing possible causes and wait until the POWER indicator stops flashing, and then try to turn on the projector.
- If the WARNING indicator lights red, it may defect the cooling fans or power supply circuits. Check fans operation
and power supply lines referring to the chapter “Power supply & protection circuit” in the Chassis Block Diagram
section.
Possible causes
- Air filters are clogged with dust particles. Remove dust from the air filters by following instructions in the “Air filter
care and cleaning” below.
- Ventilation slots of the projector are blocked. In such an event, reposition the projector so that ventilation slots are
not obstructed.
- Check if projector is used at higher temperature place (Normal operating temperature is 5 to 35 ˚C or 41 to 95˚F)
Warning temperature and power failure protection
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 of the
projector and the WARNING indicator lights red. In this
case, unplug the AC power cord and reconnect it, and then
turn the projector on once again to verify operation. If the
projector cannot be turned on and the WARNING indicator
still lights red, unplug the AC power cord and contact the
service station.
CAUTION
DO NOT LEAVE THE PROJECTOR WITH THE
AC POWER CORD CONNECTED UNDER AN
ABNORMAL CONDITION. IT MAY RESULT IN FIRE
OR ELECTRIC SHOCK.
Top Control
WARNING emit a
red light
Circuit Protections

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Maintenance
Replacing the Filters
Filter prevents dust from accumulating on the optical elements inside the projector. Should the Filter become
clogged with dust particles, it will reduce cooling fans’ effectiveness and may result in internal heat buildup
and adversely affect the life of the projector. If a “Filter warning” icon appears on the screen, replace the Filter
immediately. Replace the filter by following the steps below.
CAUTION
- Do not operate the projector with the filters
removed. Dust may accumulate on the optical
elements degrading picture quality.
- Do not put anything into the air vents. Doing so
may result in malfunction of the projector.
- Do not wash the filter with water or any other
liquid Matter. Otherwise the filter may be
damaged.
RECOMMENDATION
We recommend avoiding dusty/smoky environments
when you operate the projector. Usage in these
environments may cause poor image quality.
When using the projector under dusty or smoky conditions,
dust may accumulate on a lens, LCD panels, or optical
elements inside the projector degrading the quality of a
projected image. When the symptoms above are noticed,
contact your authorized dealer or service center for proper
cleaning.
Be sure to reset the Filter counter after cleaning or
replacing the filters.
Press the MENU button to display the On-Screen
Menu. Use the Point ed buttons to select
Setting and then press the Point 8or the SELECT
button.
Use the Point ed buttons to select Filter
counter and then press the Point 8or the
SELECT button. Use the Point ed buttons to
select Filter counter reset and then press the
SELECT button. Filter counter Reset? appears.
Select Yes to continue.
1
2
Resetting the Filter Counter
Filter counter reset
Filter counter Reset?
appears.
Select Yes, then
another confirmation
box appears.
Select Yes again
to reset the
Filter counter.
Another confirmation dialog box appears, select
Yes to reset the Filter counter.
3
Turn off the projector, and unplug the AC power
cord from the AC outlet.
Set the latch to "OPEN" position and slide the
filter to the arrow direction to remove.
1
2
Put the new one back into the position. Set the
latch to "LOCK" position.
3
4Connect the AC power cord to the projector and
turn on the projector.
5Reset the filter counter.
Filter Latch
Unlock
Lock PNote:
• When replacing the filter, it is
required a certain space to pull
out the filter completely.
• When installing the projector,
install the projector with keeping
a certain space for replacing the
filter.

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Maintenance
Cleaning the Projector Cabinet
Cleaning the Projection Lens
Unplug the AC power cord before cleaning.
Gently wipe the projection lens with a cleaning cloth that
contains a small amount of non-abrasive camera lens
cleaner, or use a lens cleaning paper or 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 of the lens.
Unplug the AC power cord before cleaning.
Gently wipe the projector body with a soft dry cleaning
cloth. When the cabinet 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 of the cabinet.
When the projector is not in use, put the projector in
an appropriate carrying case to protect it from dust and
scratches.
When moving this projector or while not using it over an
extended period of time, replace the lens cap.
Attach the lens cap according to the following procedures.
Attaching the Lens Cap
1
2
Thread the string through the hole on the lens cap and
then tie a knot in the string to secure it in place.
To pass the other end of the string into the hole on the
bottom of the projector and pull at it.

-9-
Lamp Replacement
Lamp replacement
WARNING:
- For continued safety, replace with a lamp assembly of the same
type.
- Allow the projector to cool for at least 45 minutes before you open the
lamp cover. The inside of the projector can become very hot.
- Do not drop the lamp module or touch the glass bulb! The glass can
shatter and cause injury.
WARNING :TURN OFFTHE UV LAMP BEFORE OPENING THE LAMP COVER.
USE UV RADIATION EYE AND SKIN PROTECTION DURING SERVICING.
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.
CAUTION
CAUTION
CAUTION
When replacing the lamp because it has stopped illuminating, there is a possibility that the lamp may be
broken.
If replacing the lamp of a projector which has been installed on the ceiling, you should always assume that the
lamp is broken, and you should stand to the side of the lamp cover, not underneath it. Remove the lamp cover
gently. Small pieces of glass may fall out when the lamp cover is opened. If pieces of glass get into your eyes
or mouth, seek medical advice immediately.
ORDER REPLACEMENT LAMP
Type No. POA-LMP142
Service Parts No. 610 349 7518
Follow these steps to replace the lamp.
Unplug the AC power cord. Let the projector cool for at
least 45 minutes.
Loosen the three (3) screws that secure the lamp. Lift
the lamp out of the projector by using the handles.
1
3
Replace the lamp with a new one and secure the three
(3) screws. Make sure that the lamp is set properly.
Close the lamp cover and secure the screw.
4
Loosen the screw and open the lamp cover.
2
Connect the AC power cord to the projector and turn
on the projector.
5
Lamp
Screw
Handles
Screw
Lamp Cover
Screw
Screw
Reset the Lamp Replace Counter.
Refer to the next page for details.
6

-10-
Lamp Replacement
How to check Lamp Used Time
The LAMP REPLACE indicator will light yellow when
the total lamp used time (Corresponding value) reaches
6,000 hours. This is to indicate that lamp replacement
is required.
The total lamp used time is calculated by using the be-
low expression,
Total lamp used time = Teco + Thigh/normal x 1.5
Teco: used time in the Eco mode
Thigh/normal : used time in the Normal mode and
High mode
You can check the lamp used time following to the be-
low procedure.
1Press and hold the ON/STAND-BY button on the
projector or on the remote control for more than 20
seconds.
2 The projector used time and lamp used time will be
displayed on the screen briefly as follows.
Counter
Projector 500H
Lamp
High/Normal 200 H
Eco 300 H
Corresponding value 600 H
Total lamp used time
Projector used time
Resetting the Lamp Counter
Be sure to reset the Lamp replacement counter after the
lamp is replaced.
Press the Point ed buttons to choose the Lamp counter
function and then press the Point 8or the SELECT button to
access the submenu items.
Lamp counter................This item shows the total
accumulated time of the lamp
usage.
Lamp counter reset.......Press the the SELECT button
to choose Lamp counter reset.
Select Yes in the confirmation
box if you want to reset the lamp
counter, and then choose Yes in
the second confirmation box to
reset lamp counter.
Lamp counter reset

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This projector provides security functions such as "Key lock", "PIN code lock" and "Logo PIN code lock". When the pro-
jector has set these security function on, you are required to enter correct PIN code to use the projector. If you do not
know the correct PIN code to the projector, the projector can no longer be operated or started. In this case, you must
reset those function first according to the resetting procedure described below and then check up on the projector.
Security Function Notice
Resetting procedure
1. Disconnect the AC power cord from the AC outlet.
2. As pressing the SELECT button, connect the AC power cord into an AC outlet again.
3. Keep pressing the SELECT button and then press the ON/STAND-BY button.
4. Release the ON/STAND-BY button first and then release the SELECT button.
- The PIN code lock and Logo PIN code lock will be reset as the initial PIN code at the factory and
the key lock function is disabled.
Please refer to the owner's manual for further information of the security functions.
Function Description
Key lock
Locks operation of the top control or the remote con-
trol.
If the Key lock is enabled with top control lock, the
projector can no longer be started.
Initial setting: Key lock function is disabled
PIN code lock
Prevents the projector from being operated by an un-
authorized person.
Initial code: “1234”
Logo PIN code lock
Prevents an unauthorized person for changing the
start-up logo on the screen.
Initial code: “4321”

-12-
This projector provides 2 types of standby mode, Eco standby and Network standby. According to the standby mode
"Eco" or "Network", several functions are restricted as shown in the table below. To change the standby mode, use
the projector's menu "Setting".
Network...... Supply the power to the network function even after turning off the projector. You can turn on/ off the
projector via network, modify network environment, and receive an e-mail about projector status while
the projector is powered off.
Eco............. Select “Eco” when you do not use the projector via network. The projector’s network function will stop
when turning off the projector.
When "Eco" is selected, several functions will be restricted.
Restricted Function in the standby mode
Standby Mode Notice
Function Eco Network
Serial command control -- ✔
Network Function -- ✔
Monitor Out -- ✔
Audio Out -- --
Mic Out (MIC Volume) -- ✔*
Direct on ✔ ✔
* MIC volume can be output when the Standby MIC Out function is set to On.

-13-
zCabinet Top, R/C Board removal
Mechanical Disassembly
Mechanical disassembly should be made following procedures in numerical or-
der.
Following steps show the basic procedures, therefore unnecessary step may
be ignored.
Caution:
The parts and screws should be placed exactly the same position as the original
otherwise it may cause loss of performance and product safety.
Screws Expression
(Type Diameter x Length) mm
T type M Type
Fig.1
1. Loose screw A (M3x8 ) to remove the Lamp Cover.
2. Remove 4 screws B (M3x8 ) and 2 screws C(T3x10) to remove
the Cabinet top.
3. Remove the Control Buttons and Dec Inlay LED.
4. Remove 2 screws D (T2x6) to remove the Dec Ring.
5. Remove the R/C Board.
B (M3x8)x4
R/C Board
Cabinet top
D (T2X6)x2
Control Buttons
Lamp Cover
A (M3x8)
B
B
B
D
Dec Ring
C
Dec Inlay LED
C (T3X10)x2
Dec Inlay RC

-14-
Mechanical Disassembly
AV Panel
1. Remove 4 screws A (M3x8) and 2 screws B(M4x6) to remove the Lamp back shield and
the Right shield.
2. Remove 2 screws C (T3x8) and 1 screw D(M4x6) to remove the Main Board.
3. Remove 1 screw E(M2x4) and 1 screw F(T3x6), and release hooks to remove the AV Panel.
4. Remove 2 screws G(M2.5x6) to remove the Audio Jack board.
5. Remove 2 screws H(T3x8) to remove the Audio AMP board.
6. Remove 3 screws J(T3x12) to remove the Speaker box.
Remove 2 screws K(T3x8) to remove the Speaker(SP901).
Fig.2
xMain Board, AV Panel, Audio Jack, Audio AMP and Speaker (SP901) removal
C (T3x8)x2
C
Main Board
F (T3x6)
Hooks
B (M4x6)x2
Speaker (SP901)
B
A (M3x8)x4
A
A
A
Lamp back
shield
Right shield
Audio Jack
G (M2.5x6)x2
G
Audio AMP
H (T3x8)x2
H
J (T3x12)x3
J
J
K
K (T3x8)x2
D (M4x6)x2
E (M2x4)
Speaker box
Bushes

-15-
Mechanical Disassembly
1. Remove the Lens spacer sheet-top.
2. Loose 3 screws A(M3x7) to remove the Lamp Ass'y. Remove 5 screws B(T3x8)
to remove the Optical Unit, Remove 4 screws C(T3x8) and 1 screw D(T3x8) to
remove the Lamp holder and Ballast socket.
3. Remove the lamp cover switch(SW902).
4. Remove 4 screws E(T3x8) to remove the Iris Ass'y.
Fig.3
cOptical Unit, Lamp Ass'y, SW902 and Iris Ass'y removal
Optical Unit
Ballast socket
A (M3x7)x3
Lamp holder
B (T3x8)X5
E(T3x8)x4
Lens spacer
sheet-top
B
B B
A
C C
C (T3x8)x4 C
A
Lamp Ass'y
SW902
E
E
E
Iris Ass'y
D (T3x8)
B

-16-
Mechanical Disassembly
vMounting Duct and fans(FN001, FN003, FN004, FN005) removal
Fig.4
FN004
1. Remove 3 screws A(T3x8) and 2 screws B(T3x12) to remove the fan(FN001), fan duct top and bottom.
2. Remove 5 screws C(T3x8) and unhook 3 hooks to remove the duct top.
3. Remove the Cover duct shield, remove 2 screws D(T3x12) to remove the fan(FN005).
Remove 2 screws E(T3x12) and 2 screws F(T3x30) to remove the fans(FN003,FN004)
A (T3x8)x3
B(T3x12)x2
FN001
C
C
A
A
Fan duct bottom
Fan duct top
C(T3x8)x5
C
C
C
Duct top
D(T3x12)x2
FN005
FN003
B
F E
D
E(T3x12)x2
F(T3x30)x2
Cover duct shiled
Hook
Hooks
Hooks
Fan duct ass'y

-17-
Mechanical Disassembly
Fig.5
bPower board, Fan(FN002) and Filter Ass'y removal
1. Remove the Power board spacer sheet.
2. Remove 8 screws A(M3x8) and 2 screws B(M4x6) to remove the Power box.
3. Remove the Filter Ass'y.
Power board
spacer sheet
A (M3x8)x8
A
A
A
A
A
A
A
Filter Ass'y
B
B(M4x6)x2
Power box bottom view
X3
Ballast
board
Ferrite core
Fix the ferrite
core here.
Power top holder
Power shield TEMP spacer
shield
SW601
Power top
holder
FN002
Ballast board
(T3x8)x3
T3x8
Power
board
Label
side
Note:
Please pay attention to the install
direction of SW601, the side with
text facing to the projector back.
Power box

-18-
Optical Parts Disassembly
Before taking this procedure, remove Cabinet Top and Main Board following to the “Mechanical Disassembly”.
Disassembly requires a 2.0mm hex wrench and a screwdriver.
zProjection lens disassembly
(M2.5x8)x4
Fig.1
xCondenser Out lens disassembly
Fig.2
Projection lens
Optical unit
Note: The optical unit should be removed from the cabinet bottom before re-
moving the projection lens.
M(2.5x6)x3
Condenser Out Lens Ass'y
Condenser Out Lens

-19-
Optical Parts Disassembly
cIntegrator lens-in disassembly
Integrator Lens-In Ass'y
Fig.3
Integrator lens-in
Shield
PBS marker
Integrator lens-out
Integrator lens-in
* Rugged surface
facing to PBS
Prism Beam
Splitter (PBS)
vCondenser Lens Ass'y disassembly
(M2.5x6)x2
Fig.4
Optical unit top
Condenser Lens (G) Ass'y
Polarized glass (B) Ass'y
*Polarized glass is not re-
moved from the mounting
base.
* Rugged surface

-20-
Optical Parts Disassembly
b Relay Out lens disassembly
Relay Out lens
Relay lens Ass'y
Fig.5
M(2.5x6)