LAMP REPLACEMENT------------------------------------------------------------------------- 5
PROTECTIONS----------------------------------------------------------------------------------- 6
MECHANICAL DISASSEMBLIES------------------------------------------------------ 7 - 11
ADJUSTMENT ---------------------------------------------------------------------------- 12 - 15
PIN DESCRIPTION OF DIODE, TRANSISTOR AND IC----------------------------- 16
ELECTRICAL PARTS LIST------------------------------------------------------------ 17 - 53
MECHANICAL PARTS LIST & ACCESSORIES --------------------------------- 54 - 55
SCHEMATIC DIAGRAMS------------------------------------------------------------ A1 - A12
PRINTED WIRING BOARD DIAGRAMS--------------------------------------- A13 - A14
Service Instructions & Parts List
Schematic Diagrams
Printed Wiring Board Diagrams
This Service Manual is provided with the above
sections. Click the sections you wish.
REFERENCE NO. SM5110302-00
■ Technical Specifications
■ PLC-XW20
Projector Type
Dimensions
(W x H x D)
Net Weight
LCD Panel System
Panel Resolution
Number of Pixels
Color System
High Definition TV Signal
Scanning Frequency
Projection Image size
(Diagonal)
Horizontal Resolution
Projection Lens
Throw Distance
Projection Lamp
Video Input Jacks
Audio Input Jacks
Computer Input Terminals
Computer Audio Input Jack
Control Port Connector
USB Connector
Audio Output Jacks
Internal Audio Amp
Built-in Speakers
Feet Adjustment
Voltage and
Power Consumption
Operating Temperature
Storage Temperature
Remote Control Transmitter
Accessories
Multi-media Projector
10.12" x 2.98" x 9.02" (257mm x 75.8mm x 229mm)
6.2lbs (2.8 kg)
0.7" TFT Active Matrix type, 3 panels
1024 x 768 dots
2,359,296 (1024 x 768 x 3 panels)
PAL, SECAM, NTSC, NTSC4.43, PAL-M and PAL-N
480i, 480p, 575i, 575p, 720p, 1035i, and 1080i
H-sync. 15 ~ 100 KHz, V-sync. 50 ~ 100 Hz
Adjustable from 34” to 200”
550 TV lines
F 1.6 ~ 1.78 lens with f 28.7 mm ~ 34.5 mm with manual zoom and focus
5.3’ ~ 26.6’ (1.6 m ~ 8.1 m)
150 W
RCA Type x 3 (Video/Y, Pb/Cb, Pr/Cr) and Mini DIN 4 pin x 1 (S-Video)
Mini Jack (stereo) x 1
(VGA) HDB 15 Terminal x 1
Mini Jack (stereo) x 1
Mini DIN 8 pin x 1
USB Series B receptacle x 1
Mini Jack (stereo) x 1
1.0 W RMS
1 speaker, ø1.1" (28mm)
0˚ to 10.6˚
AC 100 ~ 120 V (2.8 A Max. Ampere), 50 / 60 Hz
AC 200 ~ 240 V (1.4 A Max. Ampere), 50 / 60 Hz
41 ˚F ~ 95 ˚F (5 ˚C ~ 35 ˚C)
14 ˚F ~ 140 ˚F (-10 ˚C ~ 60 ˚C)
Power Source: Lithium Type (CR2025 / 3.0V)
Operating Range: 16.4’ (5m) / ±30˚
Dimensions: 2.1” x 0.28” x 5.3” (54mm x 7mm x 135mm)
Net Weight: 1.27oz (36 g) (including battery)
Owner’s Manual
AC Power Cord
Wireless Remote Control Transmitter and Battery
VGA Cable
Carrying Bag
Lens Cover
(not including Adjustble Feet and Lens)
(The U.S.A and Canada)
(Continental Europe and The U.K.)
● The specifications are subject to change without notice.
-2-
■ Technical Specifications
■ PLC-SW20
Projector Type
Dimensions
(W x H x D)
Net Weight
LCD Panel System
Panel Resolution
Number of Pixels
Color System
High Definition TV Signal
Scanning Frequency
Projection Image size
(Diagonal)
Horizontal Resolution
Projection Lens
Throw Distance
Projection Lamp
Video Input Jacks
Audio Input Jacks
Computer Input Terminals
Computer Audio Input Jack
Control Port Connector
USB Connector
Audio Output Jacks
Internal Audio Amp
Built-in Speaker
Feet Adjustment
Voltage and
Power Consumption
Operating Temperature
Storage Temperature
Remote Control Transmitter
Accessories
Multi-media Projector
10.12" x 2.98" x 9.02" (257mm x 75.8mm x 229mm)
6.2lbs (2.8 kg)
0.7" TFT Active Matrix type, 3 panels
800 x 600 dots
1,440,000 (800 x600 x 3 panels)
PAL, SECAM, NTSC, NTSC4.43, PAL-M and PAL-N
480i, 480p, 575i, 575p, 720p, 1035i, and 1080i
H-sync. 15 ~ 80 KHz, V-sync. 50 ~ 100 Hz
Adjustable from 34” to 200”
500 TV lines (S-Video)
F 1.6 ~ 1.78 lens with f 28.7 mm ~ 34.5 mm with manual zoom and focus
5.3’ ~ 26.6’ (1.6 m ~ 8.1 m)
150 W
RCA Type x 3 (Video/Y, Pb/Cb, Pr/Cr) and Mini DIN 4 pin x 1 (S-Video)
Mini Jack (stereo) x 1
(VGA) HDB 15 Terminal x 1
Mini Jack (stereo) x 1
Mini DIN 8 pin x 1
USB Series B receptacle x 1
Mini Jack (stereo) x 1
1.0 W RMS
1 speaker, ø1.1" (28mm)
0˚ to 10.6˚
AC 100 ~ 120 V (2.8 A Max. Ampere), 50 / 60 Hz
AC 200 ~ 240 V (1.4 A Max. Ampere), 50 / 60 Hz
41 ˚F ~ 95 ˚F (5 ˚C ~ 35 ˚C)
14 ˚F ~ 140 ˚F (-10 ˚C ~ 60 ˚C)
Power Source: Lithium Type (CR2025 / 3.0V)
Operating Range: 16.4’ (5m) / ±30˚
Dimensions: 2.1” x 0.28” x 5.3” (54mm x 7mm x 135mm)
Net Weight: 1.27oz (36 g) (including battery)
Owner’s Manual
AC Power Cord
Wireless Remote Control Transmitter and Battery
VGA Cable
Carrying Bag
Lens Cover
(not including Adjustable Feet and Lens)
(The U.S.A and Canada)
(Continental Europe and The U.K.)
● The specifications are subject to change without notice.
-3-
■ Safety Instructions
■ SAFETY PRECAUTIONS
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 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.
■ PRODUCT SAFETY NO TICE
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.
■ 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 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.
■ REMOTE CONTR OL B ATTERY INST ALLATION
Pull out Battery Holder.
123
To insure safe operation, please observe the following precautions :
● Use only specified battery. Improper battery may cause malfunction of Remote Control or a battery.
● Do not expose a battery to moisture or heat. Do not charge a battery.
● If a battery have leaked on Remote Cotrol Unit, carefully wipe the case clean and load a new battery.
● Be sure to install battery with correct polarity.
● Dispose used battery following local regulation.
● Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type
recommended by the manufacturer.
Replace with new battery. Install
with battery (+),(–) marks properly.
Put Battery + mark
as shown direction.
BATTERY HOLDER
Install battery and
Battery Holder into
Remote Control Unit.
BATTERY
LITHIUM BATTERY
CR2025 (3.0V)
(+) mark indicates
its (+) polarity.
-4-
■ Lamp Replacemant
When the life of Projection Lamp of this projector draws to an end, LAMP REPLACEMENT indicator lights yellow.
When a projected image becomes dark or the color of an image becomes unnatural, replacement of Projection
Lamp is required.
CAUTION
For continued safety, replace with a lamp
assembly of the same type.
Allow a projector to cool for at least 45
minutes before you open Lamp Cover.
The inside of a projector can become
very hot.
Follow these steps to replace the lamp assembly.
1. Turn off the projector and disconnect AC plug. Allow the projector
to cool for at least 45 minutes.
2. Remove a screw with a screwdriver to remove Lamp Cover.
3. Remove 2 screws with a screwdriver and pull out Lamp Assembly
by grasping Handle.
4. Replace Lamp Assembly with a new one and tighten 2 screws
back. Make sure that Lamp Assembly is set properly. Replace
Lamp Cover and tighten a screw.
5. Connect AC Power Cord to the projector and turn it on.
6. Reset Lamp Replace Counter (refer to the section “Lamp Replace
Counter” below).
Do not reset Lamp Replace Counter when Projection Lamp is
not replaced.
CAUTION
Do not drop a lamp assembly or touch a
glass bulb! The glass can shatter and
may cause injury.
LAMP COVER
HANDLE
LAMP
ASSEMBLY
■
LAMP REPLACE COUNTER
Be sure to reset Lamp Replace Counter when Lamp Assembly is replaced. When Lamp Replace Counter is
reset, LAMP REPLACE Indicator stops lighting.
1. Turn projector on, press MENU button and ON-SCREEN MENU will appear. Press POINT LEFT/RIGHT
button(s) to move a red frame pointer to SETTING Menu icon.
2. Press POINT DOWN button to move a red frame pointer to “Lamp counter reset” and then press
The message "Lamp replace counter reset?" is displayed. Move the pointer to [Yes] and then press SET button.
Another confirmation dialog box appears and select [Yes] to reset Lamp Replace Counter.
3.
Do not reset Lamp Replace Counter except after Projection Lamp is replaced.
SET button.
-5-
■ 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 f ollo wing protections.
■
FUSE FOR CIRCUIT PROTECTION
The fuse is located on the ass'y-power. 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-power following to “Mechanical
Disassemblies”.
2. Remove the fuse from fuse holder.
3. Check the resistance of fuse by using the tester.
Holder Power
Ass'y Power
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 )
Fuse
The temperature monitor system is provided to prevents damage of component parts inside the projector from overheat. Two protection systems are provided. Each system operating as follo ws.
■ T emperature monitor -1 :
When this function operates, warning-temperature-indicator flashes. And cooling fan continues operating until it
becomes a normal temperature. If it continue to flush and
flash does not stopped, disconnect the AC cord and investigate the cause of overheating.
■ T emperature monitor -2 :
(thermal switch SW902)
This function (thermal switch SW902) will not operate,
while the temperature monitor -1 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 thermal switch (SW902) as shown
in a figure.
Thermal switch(sw902)
Press
Reset button
-6-
■ Mechanical disassemblies
1. CABINET - TOP REMOVAL
1. Remove five screws-A.
2. Grasp the rear both ends of Cabinet-front with both
hands, and slightly pull upward.
3. Release hook, by pressing down "C" portion lightly with
finger.
4. Grasp the rear both ends of Cabinet-front with both
hands, pull up and remove upwards.
Note:
Be careful not to damage Hook. Cabinet-top is being fixed
with cabinet-front by hook.
2.
CABINET - FRONT REMO VAL
A
Hook
A
A
C
Cabinet-top
A
Cabinet-front
A
1. Remove four screws A and B.
2. Turn the focus-ring of Projection lens fully clockwise.
3. Set zoom-lever of Projection lens to under lens.
4. Slightly pull the upper part of Cabinet-front forward with
both hands. (hook is released and cabinet front is
removed.)
5. Remove a screw and, next, remove Unit R/C.
Note:
Be careful not to damage Hook. There is hook which is fixing Cabinet-front and Cabinet-bottom under Projection
lens.
Screws-A and screws-B are used different kind screws.
Check the kind of screw, and proper screw should be
used.
A
Cabinet-front
A
B
R/C
B
Cabinet-bottom
Hook
-7-
■ Mechanical disassemblies
3. ASS'Y - MAIN AND ASS'Y - SUB REMOVAL
1. Remove seven screws and remove Ass'y Main.
2. Remove three screws and remove Ass'y-Sub.
See figure right.
Main
Sub
4. ASS'Y - POWER AND FAN (FN903) REMOV AL
1. Remove seven screws and remove Ass'y Power.
2. Remove two screws and remove Fan (FN903).
See figure right..
Power
FN903
-8-
■ Mechanical disassemblies
5. ASS'Y - A V AND FAN (FN907) REMOV AL
1. Remove five screws and remove Ass'y AV.
2. Remove three screws and remove Fan (FN907).
See figure right.
AV
FN907
6. ASS'Y - LAMP - BSALLAST REMOVAL
1. Remove six screws and remove Ass'y Lamp-ballast.
Lamp ballast
-9-
■ Mechanical disassemblies
7. OPTICAL UNIT , FAN (FN901) AND LOUVER REMOV AL
1. Remove eight screws and remove Optical unit.
2. Remove three screws and remove Fan(FN901) and
louver.
See figure right.
FN901
Louver
8. AIR DUCTS AND F ANS REMOVAL
1. Remove four screws-A and remove Duct-FR and
FN905.
2. Remove two screws-B and remove Duct-PBS and
FN906.
3. Remove three screws-C and remove Duct-TOP and
FN902.
4. Remove two screws-D and remove Duct-TOP-Green
and FN904.
5. Remove screw-E and remove Duct-BTM.
See figure right.
Duct-top-Green
A
A
A
A
Dukt-FR
B
B
FN906
C
E
C
D
Duct-PBS
D
FN904
C
Duct-TOP
Duct-BTM
FN902
FN905
-10-
■ Mechanical disassemblies
9. Projection lens and Assembly P anel-Prism remo v al
1. Remove four screws and remove projection lens.
2. Remove three screws and remove Assembly PanelPrism.
See figure right.
Never touch the electrode
of flexible cables.
Caution :
Don't disassemble Assembly-Panel-Prism other wise
parts may damaged
Ass'y P/Prism
Projection lens
-11-
■ Adjustment
■ SERVICE ADJUSTMENT MENU OPERATION
■ T o enter service mode
To enter service mode press the "MENU" and "IMAGE"
buttons on the projector simultaneously and hold for 2
seconds. As shown in a figure, a service mode display
appears on a screen.
■ Adjustment
Adjust service data using the following control buttons.
1. "POINT UP" ------- An item number increases.
2. "POINT DOWN" -- An item number decreases.
3. "POINT RIGHT" --An adjustment value increases.
"VOLUME+"
4. "POINT LEFT" ---- An adjustment value decreases.
"VOLUME - "
■ T o e xit service mode
Press the "POWER on/off" button only once on the projector or remote control unit to quit the service mode.
Normal ModeService Mode
"MENU"
"IMAGE"
"POWER
ON/OFF"
Service Mode
Computer
13710
Service Mode
Computer
13710
"Point Up / Down"
Adjustment item
"Point Left / Right"
"Volume + / -"
Adjustment deta value
■ LOCATION OF TEST POINT AND VR
TEST POINTS LOCATION
TP-NRS1
TP-R1
TP-B1
TP-66A
TP-G1
VR5601
ASSY PWB MAIN
-12-
■ Adjustment
■ SERVICE MODE ADJUSTMENT MENU
Item-no. Adjustment Item
Not designatedPCA VComponent
13. Signal center DC adjustment-Red●
23. Signal center DC adjustment-Green●
33. Signal center DC adjustment-Blue●
74. Red contrast adjustment●● ●
84. Green contrast adjustment.●● ●
94. Blue contrast adjustment ●● ●
105. Signal amplitude adjustment-Red●
115. Signal amplitude adjustment-Green●
125. Signal amplitude adjustment-Blue●
168. Contrast linearity adjustment●●
Adjustment Mode
177. White balance adjustment-Red●●
187. White balance adjustment-Blue●●
501. Fan driving voltage adjustment●
671. Fan driving voltage adjustment●
Caution :
Other adjustment items are not related to service and a maintenance. Don't press the VOLUME (+) and (-) buttons at the time of those adjustment items. Otherwise it may cause loss of product safety.
-13-
■ Adjustment
■ ELECTRICAL ADJUSTMENTS
1. Fan driving v oltage adjustment
EquipmentDigital voltmeter.
Test pointTP66A
Enter the Service mode.
1. Set the item no. to [50] by pressing the Point up or down
button.
Set the data value to [1] by pressing the Volume + or button.
2. Set the item no. to [67]. Set the data value to [1].
3. Adjust the voltages of TP66A to 8.4 ± 0.1 V-DC by the
VR5601.
4. Set the item no. to [50]. Set the data value to [0].
5. Set the item no. to [67]. Set the data value to [1].
2. NRS adjustments
EquipmentOscilloscope
Test PointTP-NRS1
Input modeComputer
Input Signal16 step gray scale signal
Enter the Service mode.
Adjust values of below items by the Volume + or - buttons.
Item no.
22DC level-A in a figure 2.1 ± 0.1 V-DC.
23 DC level-B in a figure 12.0 ±0.5 V-DC.
Adjustment part Adjustment value
( for PLC-XW20 )
3.0 ± 0.1 V-DC.
( for PLC-SW20 )
3. Signal center DC adjustments
EquipmentDigital voltmeter.
Input modeComputer
Input Signal16 step gray scale signal
Enter the Service mode.
Adjust each values of below test point to be minimum
amplitude by the Volume + or - buttons.
Input modeComputer
Input Signal1dot computer signal
8. Contrast Linearity Adjustments
Input Signal16 step gray scale signal
Enter the Service mode.
If the black or white saturated picture can be seen, adjust
the value of below item to be reduced it by the Volume + or
- buttons.
Item no.
16Computer
16AV (NTSC)
Imput Mode
Enter the Service mode.
Adjust to be minimum flicker for each color by the Volume
+ or - buttons.
Item no.
19Only red color picture
20Only green color picture
21Only blue color picture
Screen
7. White Balance Adjustments
Input Signal16 step gray scale signal
Enter the Service mode.
Adjust each value of below item to be good white balance
by the Volume + or - buttons.
Item no.
17 and 18 Computer
17 and 18 AV (NTSC)
(17:Red, 18:Blue)
Note:
The white balance of Computer and AV pictures should be
same.
Imput Mode
-15-
■ Pin Description of Diode, Transistor and IC
● Diode
K
A
● Transistor/FET
E
C
B
C
E
C
B
E
B
C
● IC
K
A
K
A
K
K
K: Cathode
A: Anode
AA
C
E
B
E
C1
CBE
C2
E
C
B
B1
B2
C
BE
B1
C1
E
C2
Vdd
2
KK
C1
C2
B1B2
E
B2
C2
E2C1
B1
B2
A
B1
E1
B2
(GND)
Index
E1
C1
C2
E2
2
A
C: Collector
B: Base
E: Emitter
D: Drain
G: Gate
S: Source
S
G
D
S
D
G
3
1
3
2
Index
Index
N
1
Index
1
3
2
Index
Index
1
3
N
GND
Index
(IN)
N
3
1
(OUT)
4
5
6
21
5
4
3
2
1
Index
1
RESET
1
2
N
1
2
1
2
1
3
1
N
N
Index
Index
N
1
N
1
-16-
■ Electrical Parts List
!
Product safety should be considered when a component replacement is made in any area of a projector.
Components indicated by a mark in this parts list and the circuit diagram show components whose value have
special significance to product safety. It is particularly recommended that only parts specified on the following parts
list be used for components replacement pointed out by the mark.
● Read Description in the parts list
Read description in the Capacitor and Resistor as follows:
CAPACITOR
CERAMIC 100P K 50V
Rated Voltage
Tolerance Symbols:
Less than 10pF
A : Not specified B : ±0.1pFC : ±0.25pF
D : ±0.5pFE : +0 -1pFF : ±1PF
G : ±2pFH : +0.1 -0pF L : +0 -0.1pF
R : ±0.25 -0pF S : +0-0.25pF
More than 10pF
A : Not specified B : ±0.1%C : ±0.25%
D : ±0.5%F : ±1%G : ±2%
H : ±3%J : ±5%K : ±10%
L : ±15%M : ±20%N : ±30%
P : +100-0%Q : +30-10% T : +50-10%
U : +75-10%V : +20-10% W :+100-10%
X : +40-20%Y : +150-10% Z : +80-20%