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FILE NO.
SERVICE MANUAL Multimedia Projector Model No. PLV-Z1
(U.S.A., Canada, Europe
Asia, Africa, U.K. )
ORIGINAL VERSION
Chassis No. M4J-Z100
(PLV-Z1)
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.
CONTENTS
Pages
TECHNICAL SPECIFICATIONS ------------------------------------------------------------- 2
SAFETY INSTRUCTIONS --------------------------------------------------------------------- 3
LAMP REPLACEMENT -------------------------------------------------------------------- 4 - 5
INDICATORS AND PROJECTOR CONDITION ----------------------------------------- 6
TEMP. INDICATOR AND CLEANING ------------------------------------------------------ 7
DIMENSIONS ------------------------------------------------------------------------------------ 8
PROTECTIONS ---------------------------------------------------------------------------------- 9
MECHANICAL DISASSEMBLIES --------------------------------------------------- 10 - 14
OPTICAL PARTS DISASSEMBLIES ----------------------------------------------- 15 - 18
OPTICAL ADJUSTMENT--------------------------------------------------------------- 19 - 20
ELECTRICAL ADJUSTMENT --------------------------------------------------------- 21 - 24
OPTION RESISTORS ------------------------------------------------------------------------- 25
CIRCUIT BLOCK DIAGRAM ---------------------------------------------------------------- 25
POWER SUPPLY LINES -------------------------------------------------------------------- 26
POWER SOURCE LINES (IC) ------------------------------------------------------------- 27
ELECTRICAL PARTS LIST ------------------------------------------------------------ 28 - 46
MECHANICAL (OPTICAL) PARTS LIST & ACCESSORIES ----------------- 47 - 50
PIN DESCRIPTION OF DIODE, TRANSISTOR AND IC ---------------------------- 51
SCHEMATIC DIAGRAMS ------------------------------------------------------------- A1 - A6
PRINTED WIRING BOARD DIAGRAMS ------------------------------------------------ B1
PRODUCT CODE
1 122 115 00 PLV-Z1 (M4JA)
1 122 116 00 PLV-Z1 (P4JA)
REFERENCE NO. SM5110416-00
1 122 116 02 PLV-Z1 (P4JC)
Technical Specifications
Technical Specifications
Projector Type Multi-media Projector
Dimensions (W x H x D) 13.11" x 4.27" x 9.70" (333mm x 108.5mm x 246.5mm) (not including Adjustable Feet)
Net Weight 7.5lbs (3.4 kg)
LCD Panel System 0.7" Wide TFT Active Matrix type, 3 panels
Panel Resolution 964 x 544 dots
Number of Pixels 1,555,200 (964 x 544 x 3 panels)
Color System PAL, SECAM, NTSC, NTSC4.43, PAL-M and PAL-N
High Definition TV Signal 480i, 480p, 575i, 575p, 720p, 1035i, and 1080i
Scanning Frequency H-sync. 15 ~ 80 KHz, V-sync. 50 ~ 100 Hz
Projection Image size (Diagonal) Adjustable from 30" to 200"
Projection Lens F 2.03 ~ 2.34 lens with f 21.2 mm ~ 25.4 mm with manual zoom and focus
Throw Distance 3.6' ~ 19.7' (1.1 m ~ 6.0 m)
Projection Lamp 130 W
Video Input Jacks RCA Type x 4 (Video, Y, Pb/Cb, Pr/Cr) and Mini DIN 4 pin x 1 (S-Video)
Computer Input Terminal (VGA) HDB 15 Terminal x 1
Feet Adjustment 0° to 11.8°
Voltage and AC 100 ~ 120 V (2.4 A Max. Ampere), 50 / 60 Hz (The U.S.A and Canada)
Power Consumption AC 200 ~ 240 V (1.2 A Max. Ampere), 50 / 60 Hz (Continental Europe and The U.K.)
Operating Temperature 41 °F ~ 95 °F (5 °C ~ 35 °C)
Storage Temperature 14 °F ~ 140 °F (-10 °C ~ 60 °C)
Remote Control 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)
Accessories Owner's Manual
AC Power Cord
Remote Control and Batteries
Video Cable
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.
-2-
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 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 PROPER-
LY 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 oper-
ate without danger of electric shock.
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.
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.
-3-
Lamp Replacemant
Lamp Replacement
When the life of the projection lamp draws to an end, the LAMP
REPLACE indicator lights yellow. When this indicator lights yellow, TOP CONTROL
replace the projection lamp with a new one promptly.
WARNING
ARNING RE
READY
TEMP.
TEMP
This indicator lights yellow
when the life of the projection
LAMP LAMP
lamp draws to an end. REPLACE
REPLACE ON-OFF
Replace the Projection Lamp
with a new one.
CAUTION
FOR CONTINUED SAFETY, REPLACE WITH A LAMP
ALLOW A PROJECTOR TO COOL, FOR AT LEAST 45
ASSEMBLY OF THE SAME TYPE.
MINUTES BEFORE YOU OPEN LAMP COVER. THE
DO NOT DROP A LAMP ASSEMBLY OR TOUCH A
INSIDE OF A PROJECTOR CAN BECOME VERY
GLASS BULB! THE GLASS CAN SHATTER AND MAY
MENU INPUT
HOT.
CAUSE INJURY. SELECT
Follow these steps to replace the lamp assembly. SCREW
1. Turn off the projector and disconnect AC plug. Allow the projector
to be cooled for at least 45 minutes.
LAMP COVER
2. To remove the Lamp cover, remove the screw with a screwdriver.
3. Remove 2 screws with a screwdriver and pull out the Lamp assem-
bly by grasping the handle.
4. Replace the Lamp assembly with a new one and tighten 2 screws
back into position. Make sure that the Lamp assembly is set prop-
erly. Replace the Lamp cover and tighten the screw. HANDLE
5. Connect the AC Power Cord to the projector and turn on the projec-
tor. LAMP
SCREW ASSEMBLY
6. Reset the Lamp Replace Counter.
Refer to "Lamp Replace Counter" on the next page .
NOTE : Do not reset the Lamp Replace Counter when the
Projection lamp is not replaced. SCREW
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-Z1 / PLV-Z1BL
Replacement Lamp Type No. : POA-LMP54
(Service Parts No. 610 302 5933)
-4-
Lamp Replacement
Lamp Replacement Counter
Be sure to reset the Lamp Replace Counter after the Lamp assembly is replaced. After the Lamp Replace Counter is reset,
the LAMP REPLACE indicator stops lighting.
1. Turn on the projector and press the MENU button. The main Setting menu
menu appears. Select the Setting menu with the POINT
UP/DOWN button, and then press the POINT RIGHT button to
enter the sub-menu.
2. Choose the Lamp counter reset with the POINT UP/DOWN
button, and then press the SELECT button.
3. The message "Lamp replace counter reset?" is displayed.
Select "Yes" with the SELECT button, and the other confirma-
tion display appears. Select "Yes" with the SELECT button to
reset.
The LAMP REPLACE indicator stops lighting after the Lamp
Replace Counter is reset.
Select "Yes" to reset.
NOTE : Do not reset the Lamp Replace Counter before the Projection lamp is replaced.
LAMP HANDLING PRECAUTIONS
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.
-5-
Indicators and Projector Condition
Indicators and Projector Condition
Check the Indicators for projector condition.
Indicator Projector Condition
LAMP The projector is OFF.
Red Light
The projector is ON.
Dim Light
The MAIN ON/OFF switch is off or AC Power Cord is disconnected.
Off
READY The projector is READY to be turned on.
Green Light
The projector is in the Power management mode.
Green Flashing
The projector is OFF. (The MAIN ON/OFF switch is off, AC Power
Cord is disconnected, or the front cover is closed.)
Off
WARNING TEMP. The temperature inside the projector is abnormally high. Flashing
stops when the temperature returns to normal. The projector cannot
be turned on until the indicator goes off.
Red Flashing
The projector is operating normally.
Off
LAMP REPLACE The projection lamp needs to be replaced.
Yellow Light
The projector is operating normally.
Off
-6-
Temp. Indicator and Cleaning
Warning Temp. Indicator
The WARNING TEMP. indicator flashes red when an internal temperature of the projector exceeds the normal temperature.
The indicator stops flashing when the temperature of the projector returns to normal.
When the WARNING TEMP. indicator continues to flash, check the items listed below.
1. Ventilation slots of the projector may be blocked. In such an event, TOP CONTROL
reposition the projector so that the Ventilation slots cannot be
obstructed. WARNING
ARNING
TEMP.
TEMP RE
READY
2. The Air filter may be clogged with dust particles. Clean the Air filter
by following the section "Air Filter Care and Cleaning" below.
LAMP LAMP
REPLACE
REPLACE ON-OFF Warning Temp.
3. If the WARNING TEMP. indicator remains on after performing the
indicator
above checks, the Cooling fans or the internal circuits may be mal-
functioning. Contact service personnel from an authorized dealer
or a service station.
Air Filter Care and Cleaning
The removable Air filter prevents dust from accumulating on the surface of the projection lens and projection mirror. Should
the Air filter become clogged with dust particles, it will reduce the cooling fans' effectiveness and may result in internal heat
build up and adversely affect the life of the projector. Clean the Air filter by following the steps below.
1. Turn off the projector, and disconnect AC Power Cord from the AC MENU INPUT
outlet. SELECT
2. Turn over the projector and remove the Air filter by pulling the latch
upward.
3. Clean the Air filter with a brush or wash out dust and particles.
4. Replace the Air filter properly. Make sure that it is fully inserted.
CAUTION LATCH
Do not operate the projector with the Air filter removed.
Dust may accumulate on the LCD panels and the projection AIR FILTER
mirror degrading picture quality.
Do not put small parts into the Air intake vents. It may result
in malfunction of the projector.
Operating Environment
We recommend avoiding dusty/smoky environments when operating a projector.
When using under dusty or smoky conditions, dust may accumulate on the lens, liquid crystal panels, or optical elements
inside the projector. This condition may degrade the quality of a projected image and the life of the projector.
When the above symptoms are noticed, contact your authorized dealer or service station for proper cleaning.
Cleaning the Projection Lens
Follow these steps to clean the projection lens.
1. Apply a non-abrasive camera lens cleaner to a soft, dry cleaning cloth. Avoid using an excessive amount of cleaner.
Abrasive cleaners, solvents or other harsh chemicals might scratch a surface.
2. Lightly wipe the Projection lens with a cleaning cloth.
3. When the projector is not in use, close the front cover.
-7-
Dimensions
Dimensions
Unit : inch (mm)
13.11 (333)
11.8° (Max.)
WARNING
ARNING READY
TEMP.
TEMP
LAMP LAMP
REPLACE ON-OFF
9.70 (246.5)
MENU INPUT
SELECT
4.27 (108.5)
-8-
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-filter. When either the
LAMP indicator or the READY indicator is not illuminated,
Ass'y Filter
fuse may be opened. Check the fuse as following steps.
1. Remove the ass'y-filter 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.
Fuse
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 pro-
jector from overheat. Two protection systems are provided. Each system operating as follows.
Temperature monitor -1 :
When this function operates, warning-temperature-indica-
tor 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 inves-
tigate the cause of overheating.
Temperature monitor -2 :
(thermostat switch SW902)
This function (thermostat 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 thermostat switch (SW902) as
shown in a figure. SW902
-9-
Mechanical Disassemblies
1. CABINET - TOP REMOVAL
Cabinet Top
1. Remove six screws to take the Cabinet Top upward off.
Fig. 1
2. MAIN BOARD AND THERMAL BARRIER PLATE REMOVAL
1. Remove six screws A to take the Main Board upward A Main Board
off.
2. Remove the screw B to take the termal barrier plate
upward off. A A A
A
A Thermal
Barrier
Plate
B
Fig. 2
3. CABINET - FRONT REMOVAL
1. Open the door. Cabinet Front
2. Remove the screw to take the Cabinet Front off.
Door
Fig. 3
-10-
Mechanical Disassemblies
4. DOOR REMOVAL Door
1. Remove two screws to take the Door off.
Fig. 4
5. DOOR LEG AND DOOR SWITCH BOARD REMOVAL
1. Remove the screw to take each leg off. Door Switch Board
2. Pull the Door Switch Board out. Door
Door Leg
Fig. 5
6. AV BOARD REMOVAL
1. Remove three screws to take the AV Board upward off.
AV Board
Fig. 6
-11-
Mechanical Disassemblies
7. LAMP BALLAST UNIT REMOVAL
A Lamp Ballast Cover
1. Remove four screws A to take the Lamp Ballast Cover
upward off.
2. Remove the screw B to disconnect the Lamp Ballast A
Socket. A
3. Remove five screws C to take the Lamp Ballast Unit off. A
Lamp Ballast Unit
C
C
B C C
C
Fig. 7
8. POWER UNIT, R/C BOARD, AND FANS REMOVAL
1. Remove five screws A to take the Power Unit upward Power Unit
A
off.
2. Remove three screws B to take the Power Unit Ass'y A
upward off. A
3. Remove two screws C to take the Fan (FAN904) off. Power Unit Ass'y A
4. Remove two screws D to take the Fan (FAN903) off.
B
R/C A
B
B
FAN903
D
D
C
FAN904
C
Fig. 8
Note:
The transparent plates are fixed between the Lamp Ballast Unit and the Power Unit to
control the flow of air by the fans. After servicing, fix them to previous position.
-12-
Mechanical Disassemblies
9. OPTICAL UNIT, LAMP ASS'Y, AND FAN REMOVAL
1. Remove the screw A to take the Lamp Cover and the B
Lamp Ass's off. B Optical Unit
2. Remove six screws B to take the Optical Unit upward
off. B
3. Remove three screws C to take the Fan (FAN905) off.
B
B B
FAN905
C
C
C
Lamp Ass'y
Lamp Cover
A Fig. 9
10. FILTER BOARD REMOVAL
1. Remove two screws A to take the Filter Cover upward
off. Filter Cover
A
2. Remove five screws B to take the Filter Board off.
A
Filter Board B
B
B B
B
Fig. 10
-13-
Mechanical Disassemblies
11. FANS REMOVAL A
A
1. Remove seven screws A to take the Fan Cover and A Fan Cover
Fan (FN902) off. A A
2. Remove two screws B to take the Fian (FN901) off. A
A
FAN902 B FAN901
B
Fig. 11
-14-
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 the Cabinet Front following to "CABINET - Cushion Ring
FRONT REMOVAL" on "Mechanical Disassemblies".
2. Remove four screws to take the Projection Lens with
Cushion Ring off. Projection Lens
Fig. 1
2. INTEGRATOR LENS REMOVAL
1. Remove two screws and pull the Integrator Lens Ass'y
Lens Holder Integrator Lens
upward.
2. Remove the Stopper and bend four hooks and then
take the Lens off from the Holder.
Note:
Should be placed the lens as the rugged surface side Integrator Lens Ass'y
of it comes to the holder side.
Stopper
Fig. 2
-15-
Optical Parts Disassemblies
3. RELAY LENS REMOVAL Relay Lens
Relay Lens Ass'y
1. Remove two screws A and pull the Relay Lens Ass'y
upward.
2. Remove two screws B to take the Lens off from the
Holder. A
A
B
B
Fig. 3
4. POLARIZED GLASS-IN REMOVAL
1. Remove each screw and pull the Polarized Glass-In
Ass'y upward. Phase Sheet
2. Unhook the stoppers and take the glass off upward.
Note: Polarized
Should be placed the giass as the film attached side Grass-In
come to the prism side. Polarized Grass Ass'y
Hooks
Fig. 4
-16-
Optical Parts Disassemblies
5. POLARIZED GLASS-OUT REMOVAL
1. Remove four screw A and take the LCD Panel/Prism
Ass'y upward from the Optical Unit. LCD Panel/Prism Ass'y
2. Remove each screw B and take the glass off upward.
B
Note:
A Note 2
1. Do not replace the LCD panel separately otherwise A A
it can not obtain proper picture A Polarized
2. Should be replaced the glass as the film attached Grass-Out
side comes to the LCD panel side.
LCD Panel
Fig. 5
6. OPTICAL UNIT TOP REMOVAL
1. Remove eight screws to take the Optical Unit Top off
upward.
Fig. 6
-17-
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.
1 2 1
6
7
3
8
4
5
9
10
11
12 Key No. Description
1 Mirror (B) X2
13 2 Optical Filter (UV Cut)
3 Condenser Lens (B)
4 Condenser Lens (G)
5 Condenser Lens (R)
6 Optical Filter (R, G)
7 Relay Lens (In)
8 Dichroic Mirror (G)
9 Dichroic Mirror (R)
10 Mirror (R)
11 Condensor Lens (Out)
12 Prism Beam Splitter (PBS)
13 Integrator Lens (Out)
-18-
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:
1. Do not disconnect connectors K56M, K56N, K48K, K8E, K8H, K66A, K66B, K66C, K66D and K66F on the main
board, because the projector can not turn on or operate properly for adjustment.
2. In case of adjusting without the cabinet top, the setting for Fan Control is needed specially as shown below.
(Refer to "Electrical Adjustment" to enter the service mode and adjust.) After servicing, set to previous data.
Adjustment Item: No. 51
Adjustment Data: "0" (With Cabinet Top) "1" (Without Cabinet Top)
1. CONTRAST ADJUSTMENT
[Before Adjustment]
- Input a 100% of black raster signal. A
[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 Slot B
obtain the darkest brightness on the screen.
3. Tighten the screw A to fix the polarized glass mounting base.
Polarized Glass
Repeat steps 1 to 3 for remaining polarized glasses. Mounting Base Fig. 1
R-Polarized Grass
A Mounting Base
B-Polarized Grass
Mounting Base
A A
G-Polarized Grass
Mounting Base
Fig. 2
-19-
Optical Adjustment
2. INTEGRATOR ADJUSTMENT
1. Turn the projector on by a state of without FPC
cables.
2. Project all of lights on the screen.
3. Adjust the adjustment base of integrator lens ass'y
to make color uniformity in white.
Fig. 3
3. RELAY ADJUSTMENT
1. Turn the projector on by a state of without FPC
cables.
2. Project all of lights on the screen.
3. Adjust the adjustment base of relay lens ass'y to
make color uniformity in white.
Fig. 4
-20-
Electrical Adjustment
SERVICE ADJUSTMENT MENU OPERATION
To enter service mode Normal Mode Service Mode
To enter service mode press the "MENU" and "IINPUT" "MENU"
"INPUT" Service Mode
buttons on the projector simultaneously and hold for 2 Computer
10 137
seconds. As shown in a figure, a service mode display "POWER
ON/OFF"
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. Service Mode
3. "POINT RIGHT" -- An adjustment value increases. Computer
4. "POINT LEFT" ---- An adjustment value decreases. 10 137
To exit service mode
Press the "POWER on/off" button only once on the projec-
tor or remote control unit to quit the service mode.
"Point Up / Down" "Point Left / Right"
Adjustment item Adjustment deta value
LOCATION OF TEST POINT
TPR1
TPB1
TPG1
ASSY PWB MAIN
-21-
Adjustment
SERVICE MODE ADJUSTMENT MENU
Item-no. Adjustment Item Adjustment Mode
Not designated PC AV Component
42 1. PSIG adjustment
43 1. PSIG adjustment
1 2. Signal center DC adjustment-Red
2 2. Signal center DC adjustment-Green
3 2. Signal center DC adjustment-Blue
7 3. Red contrast adjustment
8 3. Green contrast adjustment
9 3. Blue contrast adjustment
10 4. Red signal amplitude adjustment
11 4. Green signal amplitude adjustment
12 4. Blue signal amplitude adjustment
13 5. Flicker reduction -Red
14 5. Flicker reduction -Green
15 5. Flicker reduction -Blue
16 6. Contrast linearity adjustment
17 7. White balance adjustment-Red
18 7. White balance adjustment-Blue
Caution :
Other adjustment items are not related to service and a maintenance. Don't press the VOLUME (+) and (-) button
at the time of those adjustment items. Otherwise it may cause loss of product safety.
Note :
In case of adjusting without the cabinet top, the setting for Fan Control is needed specially as shown below.
(Refer to "Electrical Adjustment" to enter the service mode and adjust.) After servicing, set to previous data.
Adjustment Item: No. 51
Adjustment Data: "0" (With Cabinet Top) "1" (Without Cabinet Top)
-22-
Adjustment
ELECTRICAL ADJUSTMENTS
1. PSIG Adjustments 3. Contrast Adjustments
Equipment Oscilloscope Equipment Oscilloscope
Test Point TP-G1 Input Signal 16 step gray scale signal
Input mode Computer
Enter the Service mode.
Input Signal 16 step gray scale signal
Adjust below level "A" in each test point to be minimum
Enter the Service mode. amplitude by the Volume + or - button.
Adjust values of below items by the Volume + or - button. 3-1 Input mode Computer
Item no. Test Point
Item no. Adjustment part Adjustment value 7 TP-R1 (Red contrast of PC)
42 DC level-A in a figure 4.5 ± 0.1 V-DC. 8 TP-G1 (Green contrast of PC)
43 DC level-B in a figure 0.5 ± 0.1 V-DC. 9 TP-B1 (Blue contrast of PC)
3-2 Input mode AV (NTSC)
Item no. Test Point
7 TP-R1 (Red contrast of AV)
A
8 TP-G1 (Green contrast of AV)
9 TP-B1 (Blue contrast of AV)
3-3 Input mode Component (480i)
White
Item no. Test Point
7 TP-R1 (Red contrast of Component)
8 TP-G1 (Green contrast of Component)
B Black 9 TP-B1 (Blue contrast of Component)
2. Signal center DC Adjustments
Equipment Digital voltmeter.
Input mode Computer
Input Signal 16 step gray scale signal
A
Enter the Service mode.
Adjust below values of each test points by the Volume + or
- button.
Item no. Test Point Adjustment value
1 TP-R1 7.0 ± 0.05 V-DC.
2 TP-G1 7.0 ± 0.05 V-DC.
3 TP-B1 7.0 ± 0.05 V-DC.
-23-
Adjustment
4. Signal Amplitude Adjustments 7. White Balance Adjustments
Equipment Oscilloscope Input Signal 16 step gray scale signal
Input Signal 16 step gray scale signal
Enter the Service mode.
Enter the Service mode. Adjust each value of below item to be good white balance
Adjust the amplitude of part A to be below value for each by the Volume + or - button.
test point by the Volume + or - button. Item no. Imput Mode
5-1 Input mode Computer 17 and 18 Computer
Item no. Test Point Adjustment value 17 and 18 AV (NTSC)
10 TP-R1 10.0 ± 0.1 Vp-p 17 and 18 Component (480i)
11 TP-G1 10.0 ± 0.1 Vp-p (17:Red, 18:Blue)
12 TP-B1 10.0 ± 0.1 Vp-p Note:
The white balance of each mode must be same.
A
(8. Color Shading Correction)
For the color shading correction, the proper computer and
" Color Shading Correction" software are needed.
The software can be ordered as follows.
5. Flicker Reduction
Input mode Computer COLOR SHADING CORRECTION
Input Signal 1dot computer signal Service Parts No. 645 056 6288
Enter the Service mode.
Adjust to be minimum flicker for each color by the Volume
+ or - button.
Item no. Screen
13 Only red color picture
14 Only green color picture
15 Only blue color picture
6. Contrast Linearity Adjustments
Input Signal 16 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
- button.
Item no. Imput Mode
16 Computer
16 AV (NTSC)
16 Component (480i)
-24-
Adjustment
4. Signal Amplitude Adjustments 7. White Balance Adjustments
Equipment Oscilloscope Input Signal 16 step gray scale signal
Input Signal 16 step gray scale signal
Enter the Service mode.
Enter the Service mode. Adjust each value of below item to be good white balance
Adjust the amplitude of part A to be below value for each by the Volume + or - button.
test point by the Volume + or - button. Item no. Imput Mode
5-1 Input mode Computer 17 and 18 Computer
Item no. Test Point Adjustment value 17 and 18 AV (NTSC)
10 TP-R1 10.0 ± 0.1 Vp-p 17 and 18 Component (480i)
11 TP-G1 10.0 ± 0.1 Vp-p (17:Red, 18:Blue)
12 TP-B1 10.0 ± 0.1 Vp-p Note:
The white balance of each mode must be same.
A
(8. Color Shading Correction)
For the color shading correction, the proper computer and
" Color Shading Correction" software are needed.
The software can be ordered as follows.
5. Flicker Reduction
Input mode Computer COLOR SHADING CORRECTION
Input Signal 1dot computer signal Service Parts No. 645 056 6288
Enter the Service mode.
Adjust to be minimum flicker for each color by the Volume
+ or - button.
Item no. Screen
13 Only red color picture
14 Only green color picture
15 Only blue color picture
6. Contrast Linearity Adjustments
Input Signal 16 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
- button.
Item no. Imput Mode
11 Computer
11 AV (NTSC)
11 Component (480i)
-24-
Option Resistors
This model is decided the Option Resisters on the main board as shown below list.
Note: If these resistors are not proper, the set does not operate correctly.
Refer to the parts list for order.
Location Value
R1863 / R1864 0 (1/16GZ)
R1866 / R1867 0 (1/16GZ)
R1852 / R1853 None
R1854 / R1856 None
Circuit Block Diagram
Main Board
AV Board IC5201 IC8201
PC/Component Buffer A/D
Video Switch IC6201 Converter
2 2
PC-RGB R(1) Cr/R(34) (3) (1) Cr/R(7)
Computer In G(5)
B(11) 3 3
IC6221
Y/G(32) (3) (1) Y/G(15)
Y, Cb, Cr Cr(3)
Video Y(7) IC6241
4 4
Component In Cb(13) Cb/B(28) (3) (1) Cb/B(22)
IC2031 IC101
K10P
K50A
IC7201
S-Y/Video Video Digital
Switch Decoder Matrix
V (CVBS)
V(8) 12 12
V(6) V(6)
Y(9)
S-Y 14 14 // //
Y(14) Y(5) Y(5)
16 16
S-Video In C(1) C(3) C(3)
S-C
IC301
System Control
Scan Converter
//
//
IC401
RGB Driver
Timing Controller
R G B Color Shading Correction
// // //
IC501
IC561 IC531 IC501 IC531/3531
IC3561 IC3531 IC561/3561
Sample & Hold
// // //
K25R K25G K25B
R G B
R G B
Panel Panel Panel
-25-
Power Supply Lines
AC In
Filter Unit
Interlock
SW601 F601 L601/2 Power Unit Thermal
Switch
Switch
AC SW Fuse Line
Filter
SW902
SW904
D7789
Main Unit Fan IC7821 FAN 1
D7791
K56N IC7831 FAN 2 Lamp Ballast
FAN Voltage D7793
IC7841 FAN 3 PE
15.5V D5602 IC7851 FAN 4
D7796
D7792
PE IC7861 FAN 5 Power
Error
System Control
Power ON/OFF I/O Expand I/O Expand I/O Expand Line
19 7 3 2
(FAN Drive Line) IC1804 IC301 IC1824 IC1823 PE
-5V D5603 D5601
Q2501 15VL D5681
K56M PE PE PE
SWD D2501
SWD
IC5601 12V IC5681
15.5V 3.3V
Q1541 SWD
D1541 SWD
5V AL IC5691
2.5V
5V D5691
ALW IC5601
ANLG L181
VD PE
6V D5651 5V 5V
PE
AL IC5641
AL
IC5651
D5661 3.3V 2.5V
PE
IC5661
AL4 AL2