■ Pins description of ICs, transistors, diodes __________________________ A15
Page 3
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 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.
SAFETY PRECAUTIONS
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 pro-
vided 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, 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.
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.
DO NOT ATTEMPT TO SER VICING THE
REMOTE CONTROL UNIT.
Laser Beam may be leaked out when in disassemble
the Unit. As the Laser Beam used in this Remote control unit is harmful to the eyes.
LASER RADIATION
DO NOT STARE INTO BEAM
MAX. OUTPUT: 1mW
WAVE LENGTH: 650±20nm
CLASS
II LASER PRODUCT
This product is complied with 21 CFR
part 1040.10
CAUTION
LASER RADIATION
DO NOT STARE INTO BEAM
CLASS 2 LASER PRODUCT
LASER-STRAHLING
NICHT IN DEN STRAHL BLICKEN
LASER KLASSE 2
Projector TypeMulti-media Projector
Dimensions (W x H x D)13.11” x 3.52” x 9.96” (333mm x 89.5mm x 253mm)
Net Weight9.5 lbs (4.3 kg)
LCD Panel System0.9” TFT Active Matrix type, 3 panels
Panel Resolution1024 x 768 dots
Number of Pixels2,359,296 (1024 x 768 x 3 panels)
Color System6 color system (PAL, SECAM, NTSC, NTSC4.43, PAL-M and PAL-N)
High Definition TV SIgnals480i, 480p, 575i, 575p, 720p. 1035i and 1080i
Scanning FrequencyH-sync. 15 ~ 100kHz, V-sync. 50 ~ 100Hz
Projection Image Size (diagonal)Adjustable from 34” to 300”
Horizontal Resolution800 TV lines
Projection LensF 1.9 ~ 2.1 lens with f 21.3mm ~ 25.6mm with motor zoom and focus
Throw Distance3.0’~ 22.6’(0.9m ~ 6.9m)
Projection Lamp200watts
AV Input JacksRCA Type x 3 (Video/Y, Cb/Pb, Cr/Pr) and Mini DIN 4 pin x 1(S-Video)
AV Audio Input JacksRCA Type x 2
Computer Input Jacks(VGA) HDB15 Ter minal x 1
Monitor Output Jacks(VGA) HDB15 Terminal x 1
Computer Audio Input JackMini Jack (stereo)
Control Port ConnectorMini DIN 8 pin x 1
USB ConnectorUSB Series B receptance x 1
External Speaker JackMini Jack (8Ω 1+1W / stereo)
Internal Audio Amp.1.0watt RMS (monaural)
Built-in Speaker1 speaker, 1.18” x 1.57” (30mm x 40mm)
Feet Adjustment0˚ to 15.6˚
Voltage andAC 100 ~ 120V (3.6A Max. Ampere), 50/60Hz (The U.S.A and Canada)
Power ConsumptionAC 200 ~ 240V (1.8A Max. Ampere), 50/60Hz (Continental Europe )
Operating Temperature41˚F ~ 95˚F (5˚C ~ 35˚C)
Storage Temperature14˚F ~ 140˚F (-10˚C ~ 60˚C)
Remote Control TransmittersWireless Remote Control, batteries AA, UM3 or R06 Type x 2
4
■ Specifications
● The specifications are subject to change without notice.
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 standards against risk of fire, casualty and electrical hazards.
Output voltage adjustment●
Fan voltage adjustment●
Pedestal adjustment●
NRS adjustment●
Signal center adjustment●
Black level adjustment●
PC offset adjustment●
PC gain adjustment●
AV gain adjustment●
Common center adjustment●●
Gamma shift adjustment❍●
White balance adjustment❍❍
Disassembly / Replaced Parts
LCD/
Prism
Ass’y
Condenser
Lens
Polarized glass
RGB
Optical Adjustments
Electrical Adjustments
● : Adjustment necessar y ❍ : Check necessary
P. F.
Board
Main
Board
Condenser
Lens-Out
■ Adjustments after Parts Replacement
Relay
Lens-Out
Power
Board
Page 6
-6-
● Interlock switch
The interlock switch (SW904) cuts off the AC mains power supply
when the lamp cover is removed. 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 (SW902) inside of the projector to
prevent the internal temperature from rising abnormally.When the
internal temperature reaches near 100˚C, turn off the AC main
power supply automatically.
The thermal switch is not reset to normal automatically even if the
internal temperature becomes normal. Reset the thermal switch
following procedure.
Check the resistance between terminals of thermal switch by
using the tester.If it has high impedance, thermal switch may be
in operative.
How to reset the thermal switch
1.
Remove the cabinet top following to “Mechanical
Disassemblies”.
2. Press the reset button on the thermal switch.
CAUTION:
Before press the reset button, disconnect the AC cord from the
projector.
■ Circuit Protections
This projector is equipped with the following circuit protections to operate in safety. If the abnor mality occurs inside
the projector, it will automatically turn off by operating one of the following protection circuits.
● Fuse
The fuse is located inside of the projector.When either the LAMP
indicator or the READY indicator is not illuminated, fuse may be
opened. Check the fuse as following steps.
It should be used the specified fuse as follows;
How to replace the fuse
1. Remove the cabinet top following to “Mechanical
Disassemblies”.
2. Remove the fuse from fuse holder.
To install the fuse, take reversed step in the above.
Fuse Part No.: 423 022 2102
TYPE T4.0AH 250V FUSE
LITTLE FUSE INC.TYPE 215004
Fuse
Thermal switch (SW902)
Reset Button
Line Filter Board
Page 7
-7-
Circuit Protections
● Warning temperature and power failure protection
The TEMP WARNING indicator flashes red and the projector will automatically turn off when the internal temperature of the projector exceeds the normal temperature or when stopping cooling fans or when the internal power
supply lines are failed.
Check the following possible causes and wait until stopping the TEMP WARNING indicator flashing.
Possible causes
- Air filter is clogged with dust particles. Remove dust from the air filter 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)
If the TEMP WARNING indicator still continues to flash, there may be defects on cooling fans or power supply circuits. Please check fan operation and power supply lines referring to the “Power Supply Lines Chart”.
Air filter care and cleaning
The removable air filter prevents dust from accumulation on the surface of the projection lens and projection mirror.
Should the air filter become clogged with dust particles, it will reduce the cooling fan’s effectiveness and may result
in internal heat build up and reduce the life of the projector.
To clean up the air filter, follow the cleaning procedure
below:
1. Turn the power off, and disconnect the AC power cord
from the AC outlet.
2. Turn the projector up side down and remove an air filter
by pulling the latches of them upward.
3. Clean the air filter with brush or wash out the dust and
particles.
4. Replace the air filter properly. Make sure that the air fil-
ter is fully inserted.
CAUTION:
Do not operate the projector with the air filter removed.The
dust is stuck on the LCD panel and the mirror, and it may
spoil the fine picture image.
Do not put the small parts into the air intake vents. It may
result in the malfunction of the projector.The air filter is
small parts. Take care that children don’t eat or swallow it.
RECOMMENDATION
We recommend to avoid dusty, smoky place for operating the projector.Using in dusty place may cause the picture
of poor quality.
When using under the dusty or smoky conditions, dust may accumulate on the LCD panel and lens inside it, and
may resultantly be projected on the screen together with the picture.
When the above symptoms are noticed, please clean up the LCD panel and lens following to the “Cleaning
Method”.
Air filter
Page 8
-8-
1 Remove 4 screws A to take the Cabinet Top Ass’y upward off.
2 Remove the Control Panel off from the Cabinet Top by lifting the edge of
control panel.
■ Mechanical Disassemblies
Mechanical disassemble should be made following procedures in numerical order.
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.
Fig.1
1 Remove 8 screws to take the Main Board upward off.
Fig.2
Cabinet Top and Control Panel removal
1
Main Board removal
2
A
A
A
A
Main Board
Control panel
Cabinet top
Page 9
Temp board
-9-
Mechanical Disassemblies
1 Remove 1 screw A to release a grounding wire.
2 Pull the Rear Panel ass’y upward.
3 Remove 4 screws B and remove the AV Board.
4 Remove 4 screws C and remove the AV Sub Board.
5 Remove 4 screws D and remove the speaker.
6 Remove 1 screw E and remove the Temp Board.
Fig.3
Fig.4
1 Remove 4 screws A and unhook 2 hooks B at the both of left and right
side, and the take the Front Panel ass’y off.
2 Remove 1 screw C to take the R/C Board off.
AV , AV Sub, Temp Board and Speaker removal
3
Front Panel and R/C Board removal
4
A
B
B
B
C
A
A
A
A
B
C
AV Sub board
AV board
Speaker
R/C board
B
C
C
D
D
E
Page 10
-10-
Mechanical Disassemblies
1 Remove 1 screw A and disconnect the Lamp Socket.
2 Remove 2 screws B to take the Lamp Ballast ass’y upward off.
3 Remove 2 screws C to take the isolation sheet off.
4 Remove 4 screws D to take the lamp ballast board off.
Fig.5
1
Remove 3 screws A and pull the Filter Board ass’y upward.
2 Remove 1 screw B to take the grounding lead from the cabinet bottom.
3 Remove 4 screws C to take the Filter Board off.
Fig.6
Lamp Ballast Unit removal
5
Filter Board removal
6
A
Lamp ballast board
B
B
D
D
D
D
A
A
A
B
C
C
C
C
Filter board
C
C
Isolation sheet
Page 11
-11-
1 Remove 4 screws A to take the Fan(FN901) off.
2 Remove 4 screws B to take the Fan(FN905) off.
3 Remove 3 screws C to take the Power Box Cover upward off.
Mechanical Disassemblies
1 Remove 1 screw A to take the Lamp Cover off.
2 Loosen 3 screws B to take the Lamp assembly by
pulling the handle.
Step to next procedure.
Fig.8-1
Fig.7
Power Box Cover and Fans(FN901, FN906) removal
7
Optical Unit removal
8
-1
A
A
A
A
B
BB
B
C
C
C
FN901
FN906
Power box cover
Lamp cover
Lamp ass’y
A
B
B
B
Page 12
Step from previous procedure.
3 Remove 6 screws C to take the Optical Unit upward upward off.
To mount optical unit, mount optical unit first then mount the Lamp assembly
and Lamp Cover.
-12-
Mechanical Disassemblies
1 Remove 8 screws A to take the Power Board ass’y
upward off.
2 Remove 4 screws B to take the P.F. Board from the
Power Board.
3 Remove 3 screws C to take the Power Board holder
from the Cabinet Bottom.
Fig.9
Power and P.F. Board removal
9
A
Power board
A
A
A
A
A
A
A
B
B
B
B
C
C
C
P. F. board
Fig.8-2
Optical Unit removal
8
-2
Optical unit
C
C
C
C
C
C
Page 13
1 Remove 1 screw A and take a Washer, Spring and
Interlock Switch lever.
2 Pull the Fan and duct ass’y upward, then remove the
2 screws B to take the Fan (FN906) off.
-13-
Mechanical Disassemblies
Fig.10
1 Remove 1 screw A to take the Temp. Board off.
2 Remove 8 screws B and to take the Fan Duct
Top off and remove the Fans (FN902, FN903,
FN904).
3 Remov e 4 screws Cto take the F an Duct Bottom
off from the Cabinet Bottom.
Fig.11
Fan (FN905) removal
10
Temp Board and Fans (FN902, FN903, FN904) removal
11
Interlock switch lever
A
B
B
FN905
A
B
B
B
B
B
B
B
C
C
C
C
FN904
FN903
FN902
Temp board
Fan duct top
Page 14
-14-
1 Remov e the Front Panel f ollowing to “Front P anel Remo v al”on “Mechanical
Disassemblies”.
2 Remove 4 screws to take the Projection Lens ass’y off.
1 Remove 2 screws A and pull the Integrator Lens-In ass’y upward.
2 Remove 1 stoppers B and then take the Lens off from the holder.
Fig.1
■ 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.
Integrator Lens
* Lens should be placed as the
rugged surface side comes to
the holder side.
Fig.2-
1
Fig.2-2
Projection Lens removal
Integrator Lens-In disassembly
Stopper B
A
A
Page 15
-15-
1 Remove 2 screws A and pull the Condenser Lens ass’y upward.
2 Remove 4 screws B to take the Lens off from the holder.
1 Remove 2 screws A and pull the Condenser Lens-Out ass’y upward.
2 Remove 2 screws B to take the Lens off from the holder.
Note:
Should be place the lens as shown in the figure.
A
Optical Pats Disassemblies
B
Condenser Lens
Fig.3-2
Fig.3-1
* Lens should be placed as the flat
surface side comes to the holder
side.
Holder
A
A
Fig.4-2
Fig.4-1
B
B
Holder
Condenser Lens-Out
A
Condenser lens disassembly
Condenser Lens-Out disassembly
B
B
B
Side View
Page 16
-16-
Optical Parts Disassemblies
1 Remove 2 screws A and pull the Relay Lens-Out ass’y upward.
2 Remove 2 screws B to take the Lens off from the holder.
Note:
There is no mounting direction of the lens.
1 Remove each screw and pull the Polarized Glass-In ass’y upward.
2 Unhook the stoppers and take the glass off upward.
Hooks
Polarized Glass-In
Fig.6-2
Fig.6-1
* Should be places the glass as the
film attached side comes to the
prism side.
Phase Sheet
A
Fig.5-2
Fig.5-1
B
B
Holder
Relay Lens-Out
A
Relay Lens-Out disassembly
Polarized Glass-In removal
Page 17
-17-
1 Remove 4 screws A and take the LCD/Prism ass’y off upward from the
optical unit.
2 Remove each screw B and take the glass off upward.
Polarized
Glass-Out
LCD Panel/Prism
Ass’y
LCD Panel/Prism Ass’y
Fig.7-
2
* Glass should be placed as the film
attached side comes to the LCD
panel side.
LCD Panel
Note:
Do not replace the LCD panel
separately otherwise it can
not obtain proper picture.
1 Remove 9 screws to take the Optical Unit Top off upward.
Fig.7-1
Fig.8
Polarized Glass-Out removal
Optical Unit Top removal
Optical Parts Disassemblies
B
A
A
A
Optical Unit Top
Page 18
-18-
Optical Parts Disassemblies
When mounting or assembling the optical parts in the optical unit, the
parts must be mounted in the specified location and direction as
shown in figure below.
1 Remove the cabinet top and main board following to
“Mechanical Disassemblies”.
2 Remove 4 screws by using the 2.0 mm hex driver and
take the LCD Panel/Prism ass’y off upward from the
optical unit.
LCD Panel/Prism
Ass’y
After replacing or installing the LCD Panel/Prism ass'y,
please make sure to obtain the best focus in both TELE
and WIDE zoom.If the focus adjustment is required,
please adjust the positioning of LCD Panel/Prism Ass’y by
following below procedure.
Mounting Procedure:
1 Loosen 4 screws A on the LCD Panel/Prism ass'y with
2.0 mm hex driver.
2 Turn the projector on and project the image with WIDE
zoom, and adjust the FOCUS control to obtain the best
focus.
3 Turn the ZOOM control to the TELE position.
4 Move the LCD Panel/Prism Ass’y backward or forward
(about 0mm ~ 0.8mm) to obtain the proper focus.
Confirm the focus at TELE and WIDE zoom.
5 Tighten 4 screws A to fix the LCD Panel/Prism ass'y.
T
op View
A
A
A
A
LCD Panel/Prism Ass’y
Note:
Do not replace the LCD
panel separately otherwise
it can not obtain proper picture.
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” , “Condenser Lens-Out Adjustment” and “Relay Lens-Out
Adjustment” following to chapter “Optical Adjustment”.
- Check the “White Balance Adjustment” , “Common Center Adjustment” and “Gamma Shift 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.
LCD Panel/Prism Ass’y removal
Note on LCD Panel/Prism Ass’y Mounting
Page 20
-20-
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.
Procedure
1 Turn off the projector and disconnect the AC cord. Allow the projector to
cool for at least 45 minutes.
2 Remove a screw with a screwdriver and remove the lamp cover.
3 Remove 2 screws and pull out the lamp assembly by grasping the han-
dle.
4 Replace the lamp assembly securely and tighten 3 screws.
5 Place the lamp cover and tighten a screw.
6 Connect the AC cord to the projector and turn on.
Note:
- Do not reset the Lamp Replace Counter, except after lamp is replaced.
- The projector can not be turned-on with lamp cover removed, because
when the lamp cover is removed, the interlock switch is also released to
switch off the mains power for safety.
7 Reset the Lamp Replace Counter, see below explanation.
■ Lamp Replacement
1 Turn the projector on, and press the MENU button
and the on-screen menu will appear.Press the POINT
LEFT/RIGHT buttons to move a red frame pointer to
SETTING menu icon.
2 Press the POINT DOWN button to move a red frame
pointer to “Lamp counter reset” and then press the
SELECT button.The message “Lamp replace counter
reset?” is displayed. Move the pointer to [Yes] and the
press the SELECT button.
3 Another confirmation dialog box appears and select
[Yes] to reset Lamp Replace Counter .
Please refer to the owners manual for further information.
Recommendation
Should the air filter become clogged with dust particles,
it will reduce the cooling fan’s effectiveness and may
result in internal heat build up and short lamp life. We
recommend cleaning the air filter after the projection
lamp is replaced.
Refer to “Air Filter Cleaning”.
The LAMP REPLACEMENT indicator will illuminate
when the Lamp Replace Counter reaches 1000
hours.This is to indicate that lamp replacement is
required.
You can check the lamp replace counter following to
below procedure.
1 Press and hold the pointer UP on the projector for
more than 20 seconds.
2 The Lamp replace Counter service menu appears on
the screen. For example, when the value of data indicates “123”, the accumulated operation time is 123
hours. To make this menu disappear, press Power
button on the projector.
Lamp cover
Lamp Assembly
Handle
Lamp replace counter data
ORDER REPLACEMENT LAMP
T
ype No.
Service Parts No.
POA-LMP35610 293 2751
How to reset Lamp Replace Counter
How to check Lamp Replace Counter
Service Mode
InputVideo
GroupNo.Data
100123
Ver. 1.00
Page 21
-21-
[Before Adjustment]
- Input a 100% of black raster signal.
[R/G/B-CONTRAST ADJUSTMENT]
1 Loosen a screw A (Fig.1-1/1-2) on the polarized glass mounting
base which you intend to adjust.
2 Turn the polarized glass mounting base as shown in Fig.1-1 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.
B-Polarized Glass
Mounting Base
R-Polarized Glass
Mounting Base
G-Polarized Glass
Mounting Base
A
A
A
Slot B
Fig.1-2
Fig.1-1
Polarized glass
mounting base
■ Optical Adjustments
Main Board
A
Contrast 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 Condenser lens, Condenser
lens-out or Relay lens adjustment, you need to disconnect some connectors and FPC cab les of LCD panels on the
main board.
Note: Do not disconnect connectors K8N, K8P, K8H, K8R and K8S on the main board, because the projector can
not turn on due to operate the power failure protection.
Page 22
-22-
Optical Adjustments
Fig.2-2
1 Turn the projector on by a state of without FPC cables.
2 Project only green light on the screen.
3 Adjust the adjustment base of condenser lens assy to make color
uniformity in green.
1) If the shading appears on the left or right of the screen as
shown in Fig.2-1, loosen 2 screws A with the 2.0mm hex driver, and adjust the slot B to make color uniformity in green by
using a slot screwdriver.
2) If the shading appears on the top or bottom of the screen as
shown in Fig.2-2, loosen 2 screw C with the 2.0mm hex driver,
and adjust the slot D to make color uniformity in green by using
a slot screwdriver
4 Tighten screws A and C to fix the Condenser lens unit.
Note:
The relay lens adjustment must be carried out after completing this
adjustment.
y
x
Moving of Slot D
Slot D
C
a
b
a
b
Moving of slot B
Fig.2-1
Slot B
A
C
y
x
Green
Green
Condenser Lens adjustment
A
Page 23
-23-
1 Turn the projector on by a state of without FPC cables.
2 Project green and blue lights on the screen.
3 Adjust the adjustment base of condenser lens-out assy to make
color uniformity in cyan.
1) If the shading appears on the left or right of the screen as shown
in Fig.3-1, loosen 1 screw A with the 2.0mm hex driver, and
adjust the slot B to make color uniformity in cyan by using a slot
screwdriver.
2) If the shading appears on the top or bottom of the screen as
shown in Fig.3-2, loosen 1 screw C with the 2.0mm hex driver,
and adjust the slot D to make color uniformity in cyan by using a
slot screw driver.
4 Tighten the screw A and C to fix the relay lens unit.
Fig.3-1
A
Slot B
Optical Adjustments
a
b
b
Moving of slot B
a
Cyan
Fig.3-2
D
Moving of slot D
y
x
C
Condenser Lens-Out adjustment
y
x
Cyan
Page 24
-24-
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 assy to make color unifor-
mity in white.
1) If the shading appears on the left or right of the screen as shown
in Fig.4-1, loosen 1 screw A with the 2.0mm hex driver, and
adjust the slot B to make color uniformity in white by using a slot
screwdriver.
2) If the shading appears on the top or bottom of the screen as
shown in Fig.4-2, loosen 1 screw C with the 2.0mm hex driver,
and adjust the slot D to make color uniformity in white by using
a slot screwdriver.
4 Tighten the screws A and C to fix the relay lens unit.
Fig.4-1
A
Slot B
a
b
b
Moving of slot B
a
White
Fig.4-2
Slot D
Moving of slot D
y
x
C
Optical Adjustments
y
x
Relay lens-Out adjustment
White
Page 25
-25-
■ Electrical Adjustments
To enter the service mode
To enter the “Service Mode”, press and hold the MENU and IMAGE button on the projector at the same time for
more than 3 seconds.The service menu appears on the screen as follows.
To adjust service data
Select the adjustment group no.by pressing the MENU button, and select the adjustment item no. by pressing the
pointer UP or DOWN button, and change the data value by pressing the VOLUME – or VOLUME + button. Refer
to the “Service Adjustment Data Table” for further descr iption of adjustment group no., item no.and data value.
To exit the service mode
To exit the ser vice mode, press the POWER ON-OFF button on the projector or remote control unit.
● Service Adjustment Menu Operation
IC1801 on the main board stores the data for the service adjustments, and should not be replaced except for
the case of defective device.
If replaced, it should be performed the re-adjustments
following to the “Electrical Adjustments”.
The data of lamp replacement monitor timer is stored
in the IC1801.
Please note that the lamp replace counter is reset
when the memory IC (IC1801) is replaced.
(Lamp replace counter can not be set to the previous
value.)
● Caution to memory IC replacement
When IC1801 is replaced with new one, the CPU
writes down the default data of the service adjustments
to the replaced IC, refer to the service adjustment
table. As these data are not the same data as factory
shipped data, it should be required to perform the re-
adjustments following to the “Electrical Adjustments”.
Please note that the lamp replace counter is reset.
● Caution of Main Board replacement (in the case
IC1801 is not defective)
When the main board is replaced, IC1801 should be
replaced with the one on previous main board. After
replacement, it should be required to perform the readjustments following to the “Electrical Adjustments”.
In this case, the lamp replace counter can be kept the
v
alue as before.
● Memory IC Replacement
Group No.
Data value
Item No.
Service Mode
InputVideo
GroupNo.Data
0032
Ver. 1.00
Page 26
-26-
After replacing the Power Board, PF.C. Board, readjust
the Output voltage adjustment as follows.
1. Connect a digital voltmeter to pins 1 (+) and 3 (-) of
K6D.
2. Adjust the voltage by using VR611 as following.
A
C InputReading
230V 370V ±2V
or 120V340V ±2V
Caution:
Be sure to connect the lamp when taking this adjustment.
● Circuit Adjustments
CAUTION:The each circuit has been made by the fine adjustment at factory. Do not attempt to adjust the follow-
ing adjustments except requiring the readjustments in servicing otherwise it may cause loss of performance and product safety.
[Adjustment Condition]
● Input signal
Video signal .......................... 1.0Vp-p/75Ω terminated, 16 steps gray scale (Composite video signal)
● Picture control mode ...................... “STANDARD” mode unless otherwise noted.
Note:
* Please refer to “Service Adjustment Menu Operation” for entering to the service mode and adjusting the service
data.
Electrical Adjustments
Output Voltage adjustment
1. Receive the 16-step grey scale video signal.
2. Set to VIDEO mode.
3. Enter the ser vice mode.
[R-PEDESTAL ADJUSTMENT]
4. Connect an oscilloscope to test point “TP201R”(+)
and chassis ground (-).
5. Select group no. “3”, item no. “14” and change data
value to adjust the pedestal lev el and b lack level to be
the same level.
[G-PEDESTAL ADJUSTMENT]
6. Connect an oscilloscope to test point “TP201G”(+)
and chassis ground (-).
7. Select group no. “3”, item no. “15” and change data
value to adjust the pedestal lev el and b lack level to be
the same level.
[B-PEDESTAL ADJUSTMENT]
8. Connect an oscilloscope to test point “
TP201B”(+)
and chassis ground (-).
9. Select group no. “3”, item no. “16” and change data
value to adjust the pedestal lev el and b lack level to be
the same level.
Pedestal adjustment
1. Enter the service mode and select group no. “11” and
item no.“0”. Set data value to “1”.
2. Connect a digital voltmeter to test point “TP12V1” (+)
and chassis ground (-).Select item no .“1” and change
data value to adjust voltage to be 8.0 ±0.1V.
3. Connect a digital voltmeter to test point “TP12V2” (+)
and chassis ground (-). Select item no.“2” and
change data value to adjust voltage to be 9.0 ±0.1V.
4. Select group no. “11” and item no. “0” and set data
value to “3”.
5. Connect a digital voltmeter to test point “TP12V1” (+)
and chassis ground (-).Select item no .“3” and change
data value to adjust voltage to be 13.0 ±0.1V.
6. Connect a digital voltmeter to test point “TP12V2” (+)
and chassis ground (-).Select item no .“4” and change
data value to adjust voltage to be 13.5 ±0.1V.
Fan Voltage adjustment
Pedestal level = Black level
(a)
Page 27
-27-
Electrical Adjustments
1. Receive the 16-step grey scale computer signal.
2. Set to COMPUTER mode.
3. Enter the ser vice mode.
[R-SIGNAL CENTER ADJUSTMENT]
4. Connect a digital voltmeter to test point “TP25R1”(+)
and chassis ground (-).
5. Select group no. “3”, item no. “0” and change data
value to adjust the voltage to be 7.30 ±0.05V.
[G-SIGNAL CENTER ADJUSTMENT]
6. Connect a digital voltmeter to test point “TP25G1”(+)
and chassis ground (-).
7. Select group no. “
3”, item no. “1” and change data
value to adjust the voltage to be 7.30 ±0.05V.
[B-SIGNAL CENTER ADJUSTMENT]
8. Connect a digital voltmeter to test point “TP25B1”(+)
and chassis ground (-).
9. Select group no. “3”, item no. “2” and change data
value to adjust the voltage to be 7.30 ±0.05V.
1. Receive the 16-step grey scale computer signal.
2. Set to COMPUTER mode.
3. Connect an oscilloscope to test point “TP3551” (+)
and chassis ground (-).
4. Enter the ser vice mode, select group no.“3”, item no.
“7” and change data value to adjust amplitude “a” to
be 5.5 ±0.1V.
Signal Center adjustment
NRS adjustment
1. Receive the 16-step grey scale computer signal.
2. Set to COMPUTER mode.
3. Enter the ser vice mode.
[R-BLACK ADJUSTMENT]
4. Connect an oscilloscope to test point “TP25R1” (+)
and chassis ground (-).
5. Select group no.“3”, item no.“3” and change data
value to adjust amplitude “a”to be 10.0 ±0.1V.
[R-BLACK ADJUSTMENT-]
6. Connect an oscilloscope to test point “TP25G1” (+)
and chassis ground (-).
7. Select group no.“3”, item no.“4” and change data
value to adjust amplitude “a”to be 10.0 ±0.1V.
[R-BLACK ADJUSTMENT-]
8. Connect an oscilloscope to test point “TP25B1” (+)
and chassis ground (-).
9. Select group no.“3”, item no.“5” and change data
value to adjust amplitude “a”to be 10.0 ±0.1V.
Black Level adjustment
(a)
black level
(a)
black level
Page 28
-28-
Electrical Adjustments
1. Receive the 16-step gray scale computer signal.
2. Set to COMPUTER mode.
3. Enter the ser vice mode.
[R-GAIN ADJUSTMENT]
4. Connect an oscilloscope to test point “TP25R1”(+)
and chassis ground (-).
5. Select group no.“2”, item no.“3” and change data
value to adjust waveform “a”to be minimum amplitude.
[G-GAIN ADJUSTMENT]
6. Connect an oscilloscope to test point “TP25G1”(+)
and chassis ground (-).
7. Select group no.“2”, item no.“4” and change data
value to adjust waveform “a”to be minimum amplitude.
[B-GAIN ADJUSTMENT]
8. Connect an oscilloscope to test point “TP25B1”(+)
and chassis ground (-).
9. Select group no.“2”, item no.“5” and change data
value to adjust waveform “a”to be minimum amplitude.
PC Gain adjustment
1. Receive the 16-step gray scale computer signal.
2. Set to COMPUTER mode.
3. Enter the ser vice mode.
[R-OFFSET ADJUSTMENT]
4. Connect an oscilloscope to test point “TP25R1”(+)
and chassis ground (-).
5. Select group no.“3”, item no.“11” and change data
value to adjust the waveform “a” (black portion ) to
be maximum amplitude.
[G-OFFSET ADJUSTMENT]
6. Connect an oscilloscope to test point “TP25G1”(+)
and chassis ground (-).
7. Select group no.“3”, item no.“12” and change data
value to adjust the waveform “a” (black portion ) to
be maximum amplitude.
[B-OFFSET ADJUSTMENT]
8. Connect an oscilloscope to test point “TP25B1”(+)
and chassis ground (-).
9. Select group no.“3”, item no.“13” and change data
value to adjust the waveform “a” (black portion ) to
be maximum amplitude.
PC Offset adjustment
Black Level
(a)
White Level
(a)
Page 29
-29-
Electrical Adjustments
[PC-GAMMA OFF ADJUSTMENT]
1. Receive the 16-step gray scale computer signal.
2. Set to COMPUTER mode.
3. Enter the service mode, select group no. “2”, item
no.“6”and change data value to reproduce the proper gray scale picture on the screen.
[AV-GAMMA OFF ADJUSTMENT]
4. Receive the 16-step gray scale video signal.
5. Set to VIDEO mode.
6. Enter the service mode, select group no. “2”, item
no.“6”and change data value to reproduce the proper gray scale picture on the screen.
1.Receive the 1 dot black & white pattern computer signal.
2. Set to COMPUTER mode.
3. Enter the service mode.
[G-COMMON CENTER ADJUSTMENT]
4. Project only green light component to the screen.
5. Select group no.“3”, item no.“8” and change data
value to obtain the minimum flicker on the screen.
[B-COMMON CENTER ADJUSTMENT]
6. Project only blue light component to the screen.
7. Select group no.“3”, item no.“9” and change data
value to obtain the minimum flicker on the screen.
[R-COMMON CENTER ADJUSTMENT]
8. Project only red light component to the screen.
9. Select group no.“3”, item no.“10” and change data
value to obtain the minimum flicker on the screen.
Gamma Shift adjustment
Common Center adjustment
1. Receive the 16-step gray scale video signal.
2. Set to VIDEO mode.
3. Enter the ser vice mode.
[R-GAIN ADJUSTMENT]
4. Connect an oscilloscope to test point “TP25R1”(+)
and chassis ground (-).
5. Select group no.“2”, item no.“3” and change data
value to adjust waveform “a”to be minimum amplitude.
[G-GAIN ADJUSTMENT]
6. Connect an oscilloscope to test point “TP25G1”(+)
and chassis ground (-).
7. Select group no.“2”, item no.“4” and change data
value to adjust waveform “a”to be minimum amplitude.
[B-GAIN ADJUSTMENT]
8. Connect an oscilloscope to test point “TP25B1”(+)
and chassis ground (-).
9. Select group no.“2”, item no.“5” and change data
value to adjust waveform “a”to be minimum amplitude.
AV Gain adjustment
[PC WHITE BALANCE ADJUSTMENT]
1. Receive the 16-step gray scale computer signal.
2. Set to COMPUTER mode.
3. Enter the service mode, select group no.“2”, item no.
“7” (Red) or “8” (Blue), and change data values
respectively to make a proper white balance.
[A V WHITE BALANCE ADJUSTMENT]
4. Receive the 16-step grey scale video signal.
5. Set to VIDEO mode.
6. Enter the service mode, select group no.“2”, item no.
“7” (Red) or “8” (Blue), and change data values
respectively to make a proper white balance.
Confirm that the same white balance is obtained in
video and computer input.
White Balance adjustment
If you find the color shading on the screen, please
adjust the white uniformity by using the proper computer and “Color Shading Correction” software supplied
separately.
NOTE ON WHITE UNIFORMITY
ADJUSTMENT
(a)
White Level
Page 30
Group: 0 TB1274
0TINT320 ~ 63
1SHP_EQ20 ~ 3
2SHP_FO10 ~ 3
NTSC,PALSECAM,NT4.43S-VideoY,Cb,Cr
3SHP_GAIN101010100 ~ 15
NTSC NT4.43 PALSECAM
4Y_OUT_LEVEL303031310 ~ 63
S-Video NTSCS-Video PALS-Video SECAMY,Cb,Cr
30313131
NTSCNT4.43PALSECAM
5C_OUT_LEVEL323232320 ~ 63
S-Video NTSCS-Video PALS-Video SECAMY,Cb,Cr
32323232
NTSCPALSECAMNT4.43PAL 60
6Y_DELAY666440 ~ 15
S-Video NTSC S-Video PAL S-Video SECAM S-Video NT4.43 S-Video PAL60
443 34
7COL_SYS--
8X’TAL--
9NOISE_DET--
10V_FREQ--Read only
11Vert. Std--
12CID--
13V_SIG--
NTSC,PALSECAM,NT4.43S-VideoYCbCr
14Cinema SHP_GAIN88880 ~ 15For cinema mode
Group: 1 CXA2101
0PICTURE300 ~ 63
1BRIGHT310 ~ 63
2R_DRIVE310 ~ 63
3G_DRIVE310 ~ 63
4B_DRIVE310 ~ 63
5HSEP_SEL10 ~ 1
6CR_OFFSET115kHz: 7Others: 100 ~ 15
7CB_OFFSET115kHz: 7Others: 100 ~ 15
8BLK_BOTTOM150 ~ 15
NTSCPAL, SECAM1035iY,Cb,Cr *1*1 Y, Cb, Cr and Y, Pb, Pr except 1035i
27Cinema CTI_LEVEL20 ~ 3Set this value at Cinema Mode
-30-
Electrical Adjustments
● Service Adjustment Data Table
These initial values are the reference data written from the CPU
ROM to memory IC when replaced new memory IC.The adjustment items indicated with “✻” are required to readjust following
to the “Electrical adjustments”. Other items should be used with
the initial data value.
No.Adjustment ItemInitial ValueRangeDescription
Page 31
28Cinema LTI_LEVEL00 ~ 3Set this value at Cinema Mode
Group: 2 L3E07050 (Digital Gamma, Color Shading & Timing Controller)
PCDVI,AV
0R_SUB_BRT000 ~ 1023
1G_SUB_BRT000 ~ 1023
2B_SUB_BRT000 ~ 1023
PCAVDVI
3R_SUB_GAIN5735734920 ~ 1023✻ Red PC/AV gain adjustment
4G_SUB_GAIN5735734920 ~ 1023✻ Green PC/AV gain adjustment
5B_SUB_GAIN5735734920 ~ 1023✻ Blue PC/AV gain adjustment
PC, DVI StandardAV Standard
6Standard G GAMMA SHIFT415415Note1✻ Gamma shift adjustment
7Standard R GAMMA SHIFT415415Note1✻ White balance adjustment
8
Standard B GAMMA SHIFT415415Note1
✻ White balance adjustment
9Standard GAMMA 0000 ~ 1023
10Standard GAMMA 12101660 ~ 1023
11Standard GAMMA 23402900 ~ 1023
12Standard GAMMA 34364060 ~ 1023
13Standard GAMMA 45114960 ~ 1023
14Standard GAMMA 55745600 ~ 1023
15Standard GAMMA 66336260 ~ 1023
16Standard GAMMA 76746720 ~ 1023
17Standard GAMMA 87097090 ~ 1023
18Standard GAMMA 97407400 ~ 1023
19Standard GAMMA 107707700 ~ 1023
20Standard GAMMA 118008000 ~ 1023
21Standard GAMMA 128328380 ~ 1023
22Standard GAMMA 138848770 ~ 1023
23Standard GAMMA 149509400 ~ 1023
24Standard GAMMA 15102310230 ~ 1023
PC, DVI RealAV Cinema(Different value to Standard)
25
Real/Cinema G GAMMA SHIFT506507Note1Note1:
26
Real/Cinema R GAMMA SHIFT512512Note1
27Real/Cinema B GAMMA SHIFT504504Note1
28Real/Cinema GAMMA 05125120 ~ 1023
29Real/Cinema GAMMA 14925380 ~ 1023
30Real/Cinema GAMMA 24975240 ~ 1023
31Real/Cinema GAMMA 35025190 ~ 1023
32Real/Cinema GAMMA 45075160 ~ 1023
33Real/Cinema GAMMA 55095150 ~ 1023
34Real/Cinema GAMMA 65105120 ~ 1023
35Real/Cinema GAMMA 75105110 ~ 1023
36Real/Cinema GAMMA 85105100 ~ 1023
37Real/Cinema GAMMA 95105100 ~ 1023
38Real/Cinema GAMMA 105105100 ~ 1023
39Real/Cinema GAMMA 115095100 ~ 1023
40Real/Cinema GAMMA 125085100 ~ 1023
41Real/Cinema GAMMA 135065090 ~ 1023
42Real/Cinema GAMMA 145025020 ~ 1023
43Real/Cinema GAMMA 155125120 ~ 1023
44R 21270 ~ 255R Correction value of vertical line
45G 21270 ~ 255G Correction value of vertical line
46B 21270 ~ 255B Correction value of vertical line
0R_VIDEO_CENTER740 ~ 255✻ Red Signal center adjustment
1G_VIDEO_CENTER740 ~ 255✻ Green Signal center adjustment
2B_VIDEO_CENTER740 ~ 255
✻ Blue Signal center adjustment
-31-
Electrical Adjustments
No.Adjustment ItemInitial ValueRangeDescription
Page 32
3REF_R1360 ~ 255✻ Red white-black level adjustment
4REF_G1360 ~ 255✻ Green white-black level adjustment
5REF_B1360 ~ 255✻ Blue white-black level adjustment
6NRS_B1280 ~ 255
7NRS_A1900 ~ 255✻ NRS adjustment
8G_V_COM1400 ~ 255✻ Green common center adjustment
9B_V_COM1400 ~ 255✻ Blue common center adjustment
10R_V_COM1400 ~ 255✻ Red common center adjustment
11R_CLMP630 ~ 255✻ Red PC offset adjustment
12G_CLMP630 ~ 255✻ Green PC offset adjustment
13B_CLMP630 ~ 255✻ blue PC offset adjustment
14R_BLK_DC760 ~ 255✻ Red pedestal adjustment
15G_BLK_DC760 ~ 255✻ Green pedestal adjustment
16B_BLK_DC760 ~ 255✻ blue pedestal adjustment
Group: 4 TA1318
15kHz31kHz33kHz45kHz
0SEP_LEV00000 ~ 3
1080i720p480p575i,PAL,SECAM 480i,NTSC
1HD_PHASE36383632320 ~ 63
2V_FREQ--Read only
3H_FREQ--
4HD_IN--
Group: 5 LP05 (Turbo)
0LP05_R_GAIN1280 ~ 255
1LP05_G_GAIN1280 ~ 255
2LP05_B_GAIN1280 ~ 255
3TURBO_GAIN190 ~ 255
Group: 10 Option
0Lamp Time Monitor--Read only
1RS232C Baudrate00 ~ 10: 19200bps 1: 9600bps
2Shootout Mode00 ~ 2
1:Mode-1(Change when no signal input) 2:Mode-2(Priority of AV) 0: Disable
3Cooling Time30 ~ 15Set cooling time period 1:30 sec. 3:90 sec. 15:450 sec. 0:On conti.
4High-Land SW00 ~ 10: Normal mode(Normal operation) 1:Highland mode(max speed in nor mal)
6Color Shading SW10 ~ 1Color correction 0: No 1:Yes, adjustable but does no store the value
7MCI Output Auto10 ~ 1Auto: 1, Fixed: 0
6Keystone Option00 ~ 1Fixed limitation :0, Change limitation to the input: 1
Group: 11 Fan Control✻ Fan voltage adjustment
0Fan Speed Mode00 ~ 30: Fan control 1: Min., 2:Mid., 3: Max. it can not be memorized.
1Fan-1 Min Data440 ~ 127Minimum output data when controlling Fans✻
2Fan-2 Min Data630 ~ 127Minimum output data when controlling Fans✻
3Fan-1 Max Data217128 ~ 255Maximum output data when controlling Fans✻
4Fan-2 Max Data236128 ~ 255Maximum output data when controlling Fans✻
5Temp Low3710 ~ 80Decides output data of DAC for temperature
6Temp High4530 ~ 80Decides output data of DAC for temperature
7Fan-1 Temp Error6130 ~ 80Temperature which CPU judges the abnormal temperature
(optical unit temperature, on Main board)
8Fan-2 Temp Error5130 ~ 80Temperature which CPU judges the abnormal temperature
(outside temperature, on Temp board)
9Fan-1 Speed Monitor-0 ~ 255Read only, displays DAC output data
10Fan-2 Speed Monitor-0 ~ 255Read only, displays DAC output data
11Temp Monitor-0 ~ 9999Read only ( Upper 2 byte indicates for Fan-1.
Lower 2 byte indicates Fan-2)
12Eco mode Fan-1 Min Data440 ~ 127decides minimum output data at Eco mode.
13Eco mode Fan-2 Min Data630 ~ 127decides minimum output data at Eco mode.
14
Eco mode Fan-1 Max Data217128 ~ 255decides maximum output data at Eco mode.
15Eco mode Fan-2 Max Data236128 ~ 255decides maximum output data at Eco mode.
Group: 12 PC Real / AV Cinema
0PC Real Contrast320 ~ 63
1PC Real Br ightness320 ~ 63
2PC Real Red320 ~ 63
3PC Real Green320 ~ 63
4PC Real Blue320 ~ 63
5PC Real Gamma80 ~ 15
6AV Cinema Contrast320 ~ 63
7AV Cinema Brightness320 ~ 63
8AV Cinema Color320 ~ 63
9AV Cinema Tint320 ~ 63
10AV Cinema Red320 ~ 63
-32-
Electrical Adjustments
No.Adjustment ItemInitial ValueRangeDescription
Page 33
11AV Cinema Green320 ~ 63
12AV Cinema Blue320 ~ 63
13AV Cinema Sharpness150 ~ 31
14AV Cinema Gamma80 ~ 15
Group: 500 ADC
0ADC R-OFFSET640 ~ 255
1ADC G-OFFSET640 ~ 255
2ADC B-OFFSET640 ~ 255
3ADC R-GAIN2540 ~ 255
4ADC G-GAIN2540 ~ 255
5ADC B-GAIN2540 ~ 255
Group: 510 NTSC Gakaku
0NTSC TOTAL DOTS26260 ~ 2047
1NTSC DISP DOTS10240 ~ 2047
2NTSC H BACK PORCH2300 ~ 2047
3NTSC V BACK PORCH460 ~ 2047
4NTSC DISP LINE4560 ~ 2047
5NTSC CLAMP40 ~ 2047
Group: 511 PAL Gakaku
0PAL TOTAL DOTS26900 ~ 2047
1PAL DISP DOTS10240 ~ 2047
2PAL H BACK PORCH2660 ~ 2047
3PAL V BACK PORCH620 ~ 2047
4PAL DISP LINE5330 ~ 2047
5PAL CLAMP40 ~ 2047
Group: 512 HDTV 1080i-60 Gakaku
0TOTAL DOTS12060 ~ 2047
1DISP DOTS10240 ~ 2047
2H BACK PORCH1450 ~ 2047
3V BACK PORCH520 ~ 2047
4DISP LINE10480 ~ 2047
5CLAMP50 ~ 2047
Group: 513 HDTV 1080i-50 Gakaku
0TOTAL DOTS14480 ~ 2047
1DISP DOTS10240 ~ 2047
2H BACK PORCH1440 ~ 2047
3V BACK PORCH640 ~ 2047
4DISP LINE10440 ~ 2047
5CLAMP50 ~ 2047
Group: 514 HDTV 1035i Gakaku
0TOTAL DOTS12060 ~ 2047
1DISP DOTS10240 ~ 2047
2H BACK PORCH1450 ~ 2047
3V BACK PORCH900 ~ 2047
4DISP LINE10060 ~ 2047
5CLAMP50 ~ 2047
Group: 515 HDTV 720p Gakaku
0TOTAL DOTS13540 ~ 2047
1DISP DOTS10240 ~ 2047
2H BACK PORCH2600 ~ 2047
3V BACK PORCH360 ~ 2047
4DISP LINE6980 ~ 2047
5CLAMP50 ~ 2047
Group: 516 HDTV 575p Gakaku
0TOTAL DOTS13480 ~ 2047
1DISP DOTS10240 ~ 2047
2H BACK PORCH2400 ~ 2047
3V BACK PORCH600 ~ 2047
4DISP LINE5240 ~ 2047
5CLAMP00 ~ 2047
Group: 517 HDTV 480p Gakaku
0TOTAL DOTS12880 ~ 2047
1DISP DOTS10240 ~ 2047
2H BACK PORCH2120 ~ 2047
3V BACK PORCH460 ~ 2047
4DISP LINE4510 ~ 2047
5CLAMP00 ~ 2047
No.Adjustment ItemInitial ValueRangeDescription
-33-
Electrical Adjustments
Page 34
-34-
Electrical Adjustments
● MAIN BOARD
Test Points and Locations
TP3551
TP25R1
TP11SC
K25R
TP25R2
TP11SY
TP25G1
TP25G2
TP11CV
K25G
TP11PB
TP11PR
TP62V
IC4101
TP25B1
TP62H
K25B
TP52R
TP201G
TP25B2
TP52G
TP52B
TP201B
TP201R
TP205
IC301
TP12V2
TP12V1
TPDCLK
TPDVS
TPDHS
TP3581
IC401
IC801
K8P
Page 35
-35-
■ Troubleshooting
No Power
The possible causes of No Power are listed below.Please
check following and refer to power supply and protection circuits diagram in the figure opposite.
1. Stop the operation of power supply circuit due
to detection of abnormality
.
- Detected the abnormality on the secondary power supply
lines.
Power failure detection diodes detect an abnormal voltage on the power supply. Check the shortage of secondary circuits, ICs, condensers, etc.
- Detected the operation stop of cooling fans.
Power failure detection diodes detect the fan operation
stop.Check Fans FN901, FN902, FN903, FN904, FN905
and FN906
Check fan's power supply lines and detection diodes and
transistors D69A, D69B, D69C and Q69A
- Detected the abnormal temperature rise inside the projec-
tor.
Temperature sensor ICs detect abnormal temperature.
Check peripheral circuits and sensor ICs IC4881 and
IC2881.
Thermal switch (TSW611) detects abnormal temperature.
Check peripheral circuits and TSW611.
TSW611.................... open in normal
TSW611 shorts when the peripheral temperature is over
90°C.
Thermal switch (SW902) detects abnormal temperature.
Check peripheral circuits and SW902.
SW902...................... short in normal
SW902 opens when peripheral temperature is over
100°C.
- Detected the abnormality on the lamp ballast unit.
The lamp ballast unit outputs error signal (LAMP_ERR)
to pin 47 of IC801.
LAMP_ERR .............. High in abnormal
- Detected the over load/over voltage on power supply circuit.
Feedback circuits detect over load or over voltages.
Check PC641, PC642 and peripheral circuits.
- Operated the mechanical protect on the Interlock switch
(SW904). Check lamp cover fixed correctly.
- Fuse (F601) open.
2. Abnormality occurs on drive signals for power
or lamp circuit.
- Abnormality on power starter signals (POWER, 5V_SW).
POWER signal is output from pin 1 of IC801 and sent to
pin 17 of IC1881, and output from pin 3 by the name of
5V_SW signal. 5V_SW signal drives 15.5V and 9VMCI
power supply circuits on the power board.
POWER/5V_SW ............ High in power on
Check POWER and 5V_SW signals, 9V regulator circuit
Q65A, Q65B, Q65C, IC65A and peripheral circuit, 15.5V
switch circuit Q661, Q662 and peripheral circuit on the
Power Board.
- Abnormality on lamp ballast drive signal (BALLAST_AC).
BALLAST_AC signal is output from pin 39 of IC801 and
sent to pin 11 of IC1881, and output from pin 9 by the
name of BALLAST_AC1 signal. BALLAST_SW1 signal
drives the lamp ballast unit.
Check BALLAST_AC and BALLAST_AC1 signals and
lamp ballast unit.
- Abnormality on fan drive signal (FAN DRIVE).
FAN DRIVE signal is output from pin 41 of IC801 and
sent to pin 15 of IC1881, and output from pin 5 by the
name of FAN DRIVE1 signal. FAN DRIVE1 signal drives
fan supply voltages (12V/12V1) on the power board.
FAN DRIVE/
FAN DRIVE1 .............. High in power on
Check FAN DRIVE/FAN DRIVE1 signals, 12V regulator
circuits IC681, Q681, Q682, Q66A, IC671, Q671, Q672
and peripheral circuits.
- Abnormality on power drive signal (LAMP_BST_SW).
LAMP_BST_SW signal is output from pin 82 of IC801
and sent to pin 2 of IC1871, and output from pin 18 by
the name of LAMP_BST_SW1 signal. LAMP_BST_SW1
signal drives the power factor control IC on the P.F. board
through the Power board.
LAMP_BST_SW/
LAMP_BST_SW1............ High in power on
Check LAMP_BST_SW and LAMP_BST_SW1 signal,
photo-coupler PC643, transistors Q651, Q641 and
peripheral circuits.
3. Abnormality occurs on the power circuit.
- Abnormality on power primary circuit
Check Line filters, L601, L602, D614, L611, IC631, D632,
etc.
- Abnormality on power secondary circuit
Check D651, D652, D653, IC651, etc.
Page 36
-36-
Troubleshooting
Power supply drive and protection diagrams and locations
SW902
F601
SW904
IC2881
IC4881
AC IN
FN901FN902
FN903
Power
Oscillator
Circuit
15.5V
P.F BOARD
K6D
K6E
147
4
1
TSW611
7
K6F
K6S K8S
LAMP_BST_SW1
On: High
K6S K8S
On: High
On: High
37-38
13-14
9-10
15-16
11-12
IC611
P.F.CONTROL
Failure: LowFailure: Low
1
2
1
2
FN904
F601
Fuse
K6J
K6K
K6M
K6L
SW902
Thermal sw.
Fan Control
IC681IC671
Interlock sw.
15.5V
6V
-6V
Q661
SW904
POWER BOARDMAIN BOARD
LAMP BALLAST UNIT
11
CB1
3
3
CB2
13
1
K8B
LAMP_BST_SW1
LAMP
LAMP_SW1
BALAST_AC1
5V_SW5V_SW
FAN DRIVE1FAN DRIVE1
3
LAMP_ERR
FN905
FN906
12
K8N
K8P
P-FAILP-FAIL
BUFFER
BUFFER
IC1871
18 2
IC1881
12
9
3
LAMP Ass'y
Failure: High
On: High
On: Low
8
11
On: High
17
On: High
15
47 80 81
48
82
3
39
1
415
TEMP. SENS.
3
5
K48E
TEMP. SENSOR
53
K8E
SCL
SDA
TEMP.SENSOR
IC801
SUB CPU
IC4881
1
2
BOARD
IC2881
1
2
Page 37
-37-
The possible causes of No Picture are listed below. Please
check following and refer to video signal processing diagrams in the figure opposite.
1. No picture from Video source
Composite Video Input
Check composite video signal at pins 45 and 46 of K10U
on AV Board and K3U on Main Board.
Check Y, C signals at pins 7 and 9 of IC2101.
Check Y, C signals at pins 5 and 7 of IC1101
S-Video Input
Check S-video signals at pins 39, 40 (Y), 41, 42 (C) of
K10U and K3U.
Check Y, C signals at test points TP11SC and TP11SY.
Check Y, C signals at pins 43 and 44 of IC1101.
Component Input
Check component signals at pins 49, 50(Pb), 51, 52 (Pr)
of K10U and K3U.
Check component signals (Y, Pr, Pb) at test points
TP11CV, TP11PB and TP11PR.
All of video signals
Check component signals (Y, Cr, Cb) at pins 21, 22 and
23 of IC1101.
Check component signals (Y, Cr, Cb) at pins 67, 68 and
69 of IC4101.
Check component signals (Y, Pr, Pb) at pins 73, 74 and
75 of IC4101.
Check Sync signals (AV_HSYNC, AV_VSYNC) at pins 4
and 9 of IC1101.
Check Sync signals (AV_HSYNC, AV_VSYNC) at pins 65
and 66 of IC4101.
Check RGB signals at pin 35, 37 and 39 of IC4101.
Check RGB signals at pins 14, 4 and 15 of IC3101.
Check blanking signal at pin 9, 10, 11 of IC3101.
Check RGB signals at pins 1, 3 and 5 of IC5241.
Check Sync signals (AV_HSYNC, AV_VSYNC) at pins 2
and 12 of IC6261.
Check AV/PC switching signal at pin 22 of IC5241 and
pins 10 and 11 of IC6261.
AV :Low, PC : High
2.
No picture from Computer source
Check RGB signals at pins 3-4, 7-8 and 11-12 of K10T on
AV Board and K3T on Main Board.
Check Sync signals (PC_HSYNC, PC_VSYNC) at pins
15-16 and 19-20) of K10T on AV Board and K3T on Main
Board.
Check RGB signals at pins 12, 10 and 8 of IC5241.
Check Sync signals at pins 1 and 13 of IC6261.
Check AV/PC switching signal at pin 22 of IC5241 and
pins 10 and 11 of IC6261.
AV :Low, PC : High
3.
No picture from both of Video and Computer
sources.
Check RGB signals at test points TP52R, TP52G and
TP52B.
Check RGB signals at test points TP201R, TP5201G and
TP201B.
Check HSYNC signal at test point TP205.
Check Sync signals at test points at TP62H and TP62V.
4. No picture from all of sources
Check RGB S&H signals at test points TP25B1, TP25B2,
TP25G1, TP25G2, TP25R1 and TP25R2.
Check NRS signals at test points TP3551 and TP3581.
Check power supply circuit 15.5V and 15VL and peripheral circuit.
Check ICs IC501, IC531, IC561, IC1501, IC1531, IC1561,
IC3501, IC3531, IC3561, IC801, IC301, IC401and peripheral circuits.
Troubleshooting
No Picture
SIGNALK10T/K3T
V-Sync19-20
H-Sync15-16
B11-12
G7-8
R3-4
SIGNALK10U/K3U
Video45-46
S-C41-42
S-Y39-40
PB49-50
PR51-52
Page 38
-38-
Troubleshooting
Video Signal processing diagrams
TP25B1
TP25B2
K25B
IC501
B-LCD
IC1501
S&H_B
B
IC5241
IC5211
PANEL
TP25G1
DBB0-9
IC401
7
TP201R
TP201G
R
G
IC5281
IC5271
TP52R
TP52G
20
8
12
10
AV/PC-RGB
B
R
G
RGB
151210
257
RGB-AMP.
3
7
11
RGB
ANALOG
K25G
TP25G2
DIGITAL
DGB0-9
IC1401
DB0-9
GB00-7
GBE0-7
15
TP201B
B
IC5291
TP52B
18
R
IC531
DGB0-9
COLOR
DGA0-9
DIGITAL
DG0-9
GG00-7
GGE0-7
IC201
22
16
315
G
G-LCD
PANEL
TP3551
22
SHIFT
IC3531
G_LEVEL
NRS
IC3551
IC1531
S&H_G
DRB0-9
G
6,7 13
TIMING
CONTROL
UNIFORMITY
CORRECTION
DRA0-9
5,4 9,1
CONTROL
BRIGHTER
DR0-9
IC301
SCAN
GR00-7
GRE0-7
SYSTEM
CONVERTER
TPDHS
CONTROL
A/D
40
IC6271
HSYNC
TP205
AV/PC
IC251
IC5251
HAFC
13
2
1
DET
AFC
IC6171
16 17
PC: H
AV : L
22
AV/ PC
B
IC6241
6
3
TP25R1
TP25R2
IC561
DHS/DVS
TPCLK
TPDVS
244
323
34
H
HS
TP62H
TP62V
3
2
BUFFER
15
2
1
SYNC-SW
H
12
1
IC6251
INVERTER
V
H
13
235
SYNC DET.
IC6211
19
15
16
V-SYNC
H-SYNC
IC1561
R
TURBO_1
240
133
V
VS
6
5
14
13
12
V
8
5
11
IC6221
K3T
20
K10T
R-LCD
PANEL
K25R
IC3561
R/B_LEVEL
S&H_R
IC1581
DCLK
10 11
22
SHIFT
RGT
DWN
14
2
D/A
PC: H
AV/ PC
AV BOARDMAIN BOARD
|
3
AV : L
19
H
TP3581
7
3
V
IC3581
NRS
VCOM
5
7
|
2
D/A
IC2571
AV-RGB
NRS
12
3
13
IC6101
IC801
79,78
SCL2_5
BLANK_SW
15
13
D/A
7
4,5,6
7
Pr
515249
Pr/Cr
Pb
IC2161
Y
C
Y
50
Pb/Cb
AV/PC
PC: H
AV : L
7
9
Cb_SW
Cr_SW
INVERTER
AV_HSYNC
AV_VSYNC
TP11SC
IC3101
55 56
HD_HSYNC
8
13
9
13 14
TP11SY
K3U
RGB
IC3121
15
1
BLANKING
R
G
393735
RGB
IC4101
66
6529286968
HD_VSYNC
HS_OUT
4
12
10
1
5
11
4
IC1101
4344171819
Cr
Y/C
TP11PR
39
41
K10U
Y/C
S_SW
S-VIDEO
IC2131
IC3141
4
3
13
2512
B
MATRIX
VS_OUT
Y
Cb
212223
VIDEO
DECODER
Cb
TP11CV
TP11PB
14
9,10
73 74 75
67
Cr
75
CV/Y
SUB
CPU
SDA2_5
8
8
SYNC_SW
IC2101
COMB
DIGITAL
2
CV
45
46
VIDEO/Y
9,18,19
BLKC_DC
FILTER
IC5161
11
C_SWIN
Component-In: H
C_SWIN
353633
2
3
IC2181
12
S_SW
S-In: H
34
I/O
Page 39
-39-
1. No drive signals supplied at motors
Check drive signals at pins 1 to 4 of K6U on Power Board.
Check ICs IC5501, IC5551 and peripheral circuits. Check
motor drive power supply (9VMCI).
2. No drive signals supplied at motor drive ICs.
Check drive signals at pins 3-4 (ZOOM), 5-6 (FOCUS) of
k6S. Check IC801.
3. No drive signals output from CPU.
Check drive signals at pins 29,30, 33, 34 of IC801(SUB
CPU). Check IC801.
4. No key switch signals input to CPU.
Check signals at pins 50 to 52 of IC801 when pressing the
key buttons.Check key buttons.
Troubleshooting
Logic Table of IC5501/IC5551
InputOutputOperation
4571
HL LHForward drive
LHHLReverse drive
HH LLBraking
LL --Stand by
Lens Motor Problems
No Sound
1. No audio signals at A
V input circuit.
Check audio signals at pins14 and 15 of IC5011 on AV
Board. Check IC5011 and peripheral circuits.
2.
Incorrect operation of VIDEO/COMPUTER mode
switching.
Check AV/PC switching signal at pins 10 and 11 of
IC5011. Check IC5011, IC801 and switching signal.
AV :Low, PC : High
3. No audio output signal at speaker
.
Check audio signal at pins 1 and 3 of K8F on Main Board.
Check MUTE signal at pin 4 of IC031.
Mute On : High
Check MUTE signal at pin 7 of IC1831, pins 7 and 13 of
IC1881, and peripheral circuit.
Mute On : High
Check sound volume signal at pins 27, 28 of K10U, and
pin 14 of IC1831.Check IC IC001, IC031 and peripheral
circuit.
Volume Min.: Low
4. No power supply at audio circuit.
Check 6V(6V AUDIO) power supply line.
AV BOARD
COMPUTER
AUDIO IN
VIDEO
AUDIO IN
EXTERNAL
SPEAKER
SPEAKER
PC_L/R
AV_L/R
Q2051
IC5011
AUDIO-SW
10
11
1
13
15
14
2
12
9
Q5072 Q5071
Q5031
Q5042
AV/PC
K10Y
AV/PC
10
11
K10X
3
4
7
6
8
Q011
Q021
K10U
VOLUME
MUTE On: H
AV SUB BOARD
IC001
AUDIO
PRE-AMP.
1, 7
242, 6
IC031
AUDIO
CONTROL
5
17
3
14
K3U
29
30
27
28
MUTE
31
32
21
|
24
K8F
1,3
18
13
MUTE
7
IC1881
BUFFER
L
R
13
AUDIO MUTE
MUTE On: H
IC2161
D/A
7
7
8
AV/PC
PC: H
AV : L
IC1831
D/A
14
7
SCL2_5
13
SDA2_5
2
SCL1_5
3
SDA1_5
MAIN BOARD
Q1817
Q1817
Q1818
Q1819
79,78
80,81
IC801
SUB
CPU
Power
Supply
Circuit
ON: H
5V_SW
452
5
4
5
FOCUS
MOTOR
M
ZOOM
MOTOR
M
15V
Q65A
Q65B Q65C
9V MCI
K6UK6S K8S
1
2
3
4
IC5551
FOCUS
MOTOR DRIVE
3
1
7
IC5501
ZOOM
MOTOR DRIVE
3
1
7
POWER BOARD
LEVEL +
IC801
SUB CPU
LEVEL -
345
345
51
50
KEY SW BOARD
IC1881
BUFFER
15
3
16
FOCUS +
6
FOCUS -
5
ZOOM +
4
ZOOM -
3
POWER
ON: H
1
33
34
29
30
17
FOCUS
ZOOM
K68A
K8A
MAIN BOARD
Page 40
-40-
● System Control & I/O Port Table (IC801)
■ Control Port Functions
1PE5/D5POWER_SWPower_SWOH: On
2PE6/D6SYS SWPeripheral IC power supply SWOL: on
3PE7/D7LAMP_SWLamp LEDOH: On
4PD0/D8DATA0Data Bus 0I/O5PD1/D9DATA1Data Bus 1I/O6PD2/D10DATA2Data Bus 2I/O7PD3/D11DATA3Data Bus 3I/O8PD4/D12DATA4Data Bus 4I/O9PD5/D13DATA5Data Bus 5I/O-
10PD6/D14DATA6Data Bus 6I/O-
11PD7/D15DATA7Data Bus 7I/O12CVCCCVCCPower supply-13PC0/A0ADDRESS0Address Bus 0O14VSSVSSVss-15PC1/A1ADDRESS1Address Bus 1O16PC2/A2ADDRESS2Address Bus 2O17PC3/A3ADDRESS3Address Bus 3O18PC4/A4ADDRESS4Address Bus 4O19PC5/A5ADDRESS5Address Bus 5O20PC6/A6ADDRESS6Address Bus 6O21PC7/A7ADDRESS7Address Bus 7O22PB0/A8/TIOCA3ADDRESS8Address Bus 8O23PB1/A9/TIOCB3ADDRESS9Address Bus 9O24PB2/A10/TIOCC3ADDRESS10Address Bus 10O25PB3/A11/TIOCD3ADDRESS11Address Bus 11O26PB4/A12/TIOCA4ADDRESS12Address Bus 12O27PB5/A13/TIOCB4ADDRESS13Address Bus 13O28PB6/A14/TIOCA5ADDRESS14Address Bus 14O29PB7/A15/TIOCB5ZOOM +Zoom +OL: Zoom +
30PA0/A16ZOOM -Zoom -OL: Zoom 31PA1/A17/TxD2TxRS232C TxDOL: active
32PA2/A18/RxD2RxRS232C RxDIL: active
33PA3/A19/SCK2FOCUS +Focus +OL: Focus +
34P10/TIOCA0/A20FOCUS -Focus -OL: Focus 35P11/TIOCB0/A21R/CRemote control signal inputIL: active
36P12/TIOCC0/TCLKA/A22USB_RESETUSB Reset signal outputOL: active
37P13/TIOCD0/TCLKB/A23USB_BRSTUSB_BRSTOL: On”
38P14/TIOCA1/IRQ0SCLKSerial clock outputOH: active
39P15/TIOCB1/TCLKCBLAST_ACLamp Ballast control signalOH: on
40P16/TIOCA2/IRQ1TXD_SWTXD_SWOH: PW-Main CPU
41P17/TIOCB2/TCLKDFAN ON/OFFFan Drive outputOH: on
42AVSSAvssA/D ground-43P97/DA1PIXEL WRITEPIXEL writeIL: PW write
44P96/DA0TEMP_DETTEMP DETIL: Temperature abnormal
45P47/AN7OPT2Option inputIL: XGA H: SVGA
46P46/AN6Not usedI
47P45/AN5LAMP_ERRLamp ErrorIH: Lamp not lit
48P44/AN4POWER_FAILPower Fail (Abnormal less than 2V)IAbnormal less that 1V
49P43/AN3OPT1Destination optionI
50P42/AN2KEY3 Key Input3 (A/D Input)I
51P41/AN1KEY2Key Input2 (A/D Input)I
52P40/AN0KEY1Key Input1 (A/D Input)I
53VrefVrefReference voltage for analog-54AVCCAVCCA/D power supply-55MD0MD0Operation mode control 0IFixed L
56MD1MD1Operation mode control 1IFixed H
57OSC2OSC2Sub-clock output (Not used)Oopen
58OSC1OSC1Sub-clock output (Not used)IConnected to GND
59RESRESETReset inputIReset L to H
60NMINMINon-maskable input (not used)IFixed H
61STBYSTBYStand-byI62VCCVCCVcc-63XTALXTALOscillator inputI64VSSVSSGND-65EXTALEXTALOscillator outputO66FWEFEWWrite enable input for Flash ROMIH: Enable
Pin No.NameFunction NameFunctionI/OAction
Page 41
-41-
67MD2MD2Operation mode control 2IFixed H
68PF7/¢¢¢ outputO69PF6/ASASAS outputO70PF5/RDRDRead signalOControl for SRAM
71PF4/HWRHWRWrite signal (upper 8 bit)OControl for SRAM
72PF3/LWR/ADTRG/IRQ3IRO_CSColor uniformity correction (E7050) Chip SelectOL: active
73PF2/WAITTURBO_CSTurbo gate array Chip SelectOH: active
74PF1/BACK/BUZZSDA 4IIC Bus 4 SDAI/OL: active
75PF0/BREQ/IRQ2FLASH_MODEFWE controlO
76P30/TxD0PW TXPW365 TxDOL: active
77P31/RxD0PW RXPW365 RxDIL: active
78P32/SCK0/SDA1/IRQ4SDA 2IIC Bus 2 SDAI/OL: active
79P33/TxD1/SCL1SCL 2IIC Bus 2 SCLOL: active
80P34/RxD1/SDA0SDA 1IIC Bus 1 SDA (EEPROM,DAC-1)I/OL: active
81P35/SCK1/SCL0/IRQ5SCL 1IIC Bus 1 SCL (EEPROM,DAC-1)OL: active
82P36BLAST_SWLamp ballast 400VON/OFFOH: on
83P77/TXD3MCI TXViewer TxDOL: active
84P76/RXD3MCI RXViewer RxDIL: active
85P75/TMO3/SCK3SCL 4IIC Bus 4 SCLOL: active
86P74/TMO2/MRESM-RESETManual resetIL: reset
87P73/TMO1/CS7PW_IN0PW365 data input 0I
88P72/TMO0/CS6PW_IN1PW365 data input 1I
89P71/TMRI23/TMCI23/CS5OPT_ECOEco Mode OptionI
90P70/TMRI01/TMCI01/CS4OPT_DVIDVI OptionI
91PG0/IRQ6SDATASerial data outputOL: active
92PG1/CS3/IRQ7USB_INTRUSB interrupt signal inputIL active
93PG2/CS2CS 2SRAM Chip SelectOL: active
94PG3/CS1CS 1USB Chip SelectOL: active
95PG4/CS0CS 0Not usedOFixed L
96PE0/D0SDA 3IIC Bus 3 SDAI/OL: active
97PE1/D1SCL 3IIC Bus 3 SCLOL: active
98PE2/D2PW_OUT0PW365 Data output 0O
99PE3/D3PW_OUT1PW365 Data output 1O
100PE4/D4PW_RESETPW365 Reset outputOReset L -> H -> L
Pin No.NameFunction NameFunctionI/OAction
Control Port Functions
Page 42
-42-
1S ResetOpen2SCLIIC SCLActive “L” 3SDAIIC SDAActive “L” 4D0CARD_INL: CARD H: No CARDIN
5D1VIEWER_ONL: VIEWER Unit existIN
6D2SCDT1DVI Sync. detection H: DVIIN
7D3TURBO_LEDH: on L: offOUT
8VSSGND--
9D4WARNING_LEDH: on L: offOUT
10D5LAMPREP_LEDH: on L: offOUT
11D6READY_LEDH: on L: offOUT
12D7Not usedFixed “L”OUT
13VDD5 VVcc14CS2Chip Select 2Fixed “L”15CS1Chip Select 1Fixed “L”16CS0Chip Select 0Fixed “H”-
Pin No.NameFunctionActionI/O
● IIC Bus I/O Expander (IC1851) Port Functions
● IIC Bus I/O Expander (IC2181) Port Functions
1RResetFixed “H”
2SCLIIC SCLActive “L”
3SDAIIC SDAActive “L”
4AO7FAN_CONT_10xFFh:Min 0x00h:Max
5AO8FAN_CONT_20xFFh:Min 0x00h:Max
6AO9EDIDENL: H8 side H: PC side
7AO10AUDIOMUTEL: Mute Off H: Mute On
8AO11PWRDN0AD Power down (L:DVI/MCI H:PC)
9AO12DCOM_OFFDigital Comb Filter Usage L: at composite SECAM, NTSC4.43, PAL60
10VrefLD/A converter lower ref. voltage Connect to GND
11VrefU1D/A converter upper ref. voltage (CH7~CH12) Vcc
12GNDGNDGND
13VrefU2D/A converter upper ref. voltage (CH1~CH6) Vcc
14AO1VOL_CNTControl sound output volume, L: minimum
15AO2CG1_CG2L: CG1, H: CG2
16AO3MOUSEAir mouse On/Off H: On L: Off
17AO4MOUSE_RESETAir mouse CPU reset Reset start: H->L->H
18AO5TURBO +Turbo motor control (+) L: On
19AO6TURBO -Turbo motor control (-) L: On
20VccDigital power supply
21VddAnalog power supply
22CS2Chip Select 2Fixed “H”
23CS1Chip Select 1Fixed “H”
24CS0Chip Select 0Fixed “L”
Pin No.NameFunctionAction
● IIC Bus DA Converter (IC1831) Port Functions
Control Port Functions
1SResetOpen-
2SCLIIC SCLActive “L”-
3SDAIIC SDAActive “L”-
4D0MOD 2Composite NTSC4.43, PAL60: H else: LOUT
5D1MOD 1Fixed “L”OUT
6D2PNRNTSC, NTSC4.43: L else: HOUT
7D3NTPL 2PAL-M, PAL-N: H else: LOUT
8VSSGND--
9D4NTPL 1PAL, PAL-N: H else: L IN
10D54.43 TRAPComposite SECAM, NTSC4.43, PAL60: L, else: HOUT
11D6C -SWINComponent signal detection (L: Component)IN
12D7S _ SWS signal detection (L: S-Input)IN
13VDD5 VVcc(5V)14CS2Chip Select 2Fixed “L”15CS1Chip Select 1Fixed “L”16CS0Chip Select 0Fixed “L”-
Pin No.NameFunctionActionI/O
Page 43
-43-
1RResetFixed “H”
2SCLIIC SCLActive “L”
3SDAIIC SDAActive “L”
4AO7RCLPR Signal clamp reference voltage
5AO8GCLPG Signal clamp reference voltage
6AO9BCLPB Signal clamp reference voltage
7AO10AV/PCAV/PC switch (L: AV H: PC)
8AO11SYNC_SWFixed “H”
9AO12G_BLK_DCVideo G signal pedestal voltage
10VrefLD/A converter lower ref. voltageConnected to GND
11VrefU1D/A converter upper ref. voltage (CH7~CH12)Vcc(5V)
12GNDGNDGND
13VrefU2D/A converter upper ref. voltage(CH1~CH6)Vcc(5V)
14AO1SCP SWSandcastle pulse SW Video/S-Video/480i/575i: L else: H
15AO2BLANK SWH Blank width SW 1080i/1035i/720p/480p/575p: H else: L
16AO3MACROH: PC, AV(1080i50Hz) L: AV
17AO4CBAL_SWColor uniformity correction SW
18AO5B_BLK_DCVideo B signal pedestal voltage
19Ao6R_BLK_DCVideo R signal pedestal voltage
20VccDigital power supplyVcc(5V)
21VddAnalo gpower supplyVcc(5V)
22CS2Chip Select 2Fixed “L”
23CS1Chip Select 1Fixed “H”
24CS0Chip Select 0Fixed “H”
Pin No.NameFunctionAction
● IIC Bus DA Converter (IC2161) Port Functions
Control Port Functions
1RResetFixed “H”
2SCLIIC SCLActive “L”
3SDAIIC SDAActive “L”
4AO7REF_BD/A reference voltage
5AO8REF_GD/A reference voltage
6AO9REF_RD/A reference voltage
7AO10Not used0V fixed
8AO11Not used0V fixed
9AO12Not used0V fixed
10VrefLD/A converter lower ref. voltageConnected to GND
11VrefU1D/A converter upper ref. voltage (CH7~CH12)Vcc(5V)
12GNDGNDGND
13VrefU2D/A converter upper ref. voltage (CH1~CH6)Vcc(5V)
14AO1B-CENTVideo center voltage
15AO2G-CENTVideo center voltage
16AO3R-CENTVideo center voltage
17AO4DWNPanel control signal
18AO5RGTPanel control signal
19AO6XRGTPanel control signal
20VccDigital power supplyVcc(5V)
21VddAnalog power supplyVcc(5V)
22CS2Chip Select 2Fixed “L”
23CS1Chip Select 1Fixed “L”
24CS0Chip Select 0Fixed “L”
Pin No.NameFunctionAction
● IIC Bus DA Converter (IC1581) Port Functions
1RResetFixed “H”
2SCLIIC SCLActive “L”
3SDAIIC SDAActive “L”
4AO5Not used
5AO6VCOMR
6AO7VCOMG
7AO8VCOMB
8VrefLD/A converter lower ref. voltageConnected to GND
9VrefU1D/A converter upper ref. voltage (CH5~CH8)Connected to Vcc
10GNDGNDGND
11VrefU2D/A converter upper ref. voltage (CH1~CH4)Connected to Vcc
12AO1NRSB
13AO2NRSA
14AO3Not used
15AO4Not used
16Vcc5 VVcc(5V)
17Vdd5 VVdd(5V)
18CS2Chip Select 2Fixed “L”
19CS1Chip Select 1Fixed “L”
20CS0Chip Select 0Fixed “H”
Pin No.NameFunctionAction
● IIC Bus DA Converter (IC2571) Port Functions
Page 44
-44-
■ Waveforms
VIDEO-INY-IN <IC1101-5>
C-IN <IC1101-7>
Y-OUT <IC1101-21>CB-OUT <IC1101-22>
CR-OUT <IC1101-23>
H-SYNC OUT <IC1101-9>V-SYNC OUT <IC1101-4>
R-OUT <IC4101-35>G-OUT <IC4101-37>
B-OUT <IC1101-7>
R-DRIVE <TP52R/TP201R>G-DRIVE <TP52G/TP201G>
B-DRIVE <TP52B/TP201G>
Page 45
H-SYNC OUT <IC4101-29>V-SYNC OUT <IC4101-28>
H-SYNC IN <TP205>
H-SYNC DRIVE <TP62H>V-SYNC DRIVE <TP62V>
DHS <TPDHS>
DVS <TPDVS>NRS <TP3551/TP3581>
R-S&H OUT <TP25R1/TP25R2>G-S&H OUT <TP25G1/TP25G2>
B-S&H OUT <TP25B1/TP25B2>
BALLAST SW <TP28L>
Waveforms
-45-
Page 46
-46-
■ Cleaning
Cleaning with air spray
1. Remove the cabinet top following to “Mechanical
Disassemblies”.
2.Clean up the LCD panel and polarizing plate by using
the air spray from the cabinet top opening.
Caution:
Use a commercial (inert gas) air spray designed for
cleaning camera and computer equipment. Use a resinbased nozzle only. Be vary careful not to damage optical parts with the nozzle tip. Never use any kind of
cleanser on the unit. Also, never use abrasive materials
on the unit as this may cause irreparable damage.
After long periods of use, dust and other particles will accumulate on the LCD panel, prism, mirror, polarized glass,
lens, etc., causing the picture to darken or color to blur. If this occurs, clean the inside of optical unit.
Remove dust and other particles using air spray. If dirt cannot be removed by air spray, disassemble and clean
the optical unit.
Disassembly Cleaning
Disassembly cleaning method should only be performed when the unit is considerable dirty and cannot
be sufficiently cleaned by air spraying alone.
Be sure to readjust the optical system after performing disassembly cleaning.
1. Remove the cabinet top and main units following to
“Mechanical Disassemblies”.
2.Remove the optical base top f ollo wing to “Optical Unit
Disassemblies”. If the LCD panel needs cleaning,
remove the LCD panel unit following to “LCD panel
replacement”.
3. Clean the optical parts with a soft cloth. Clean
extremely dirty areas using a cloth moistened with
alcohol.
Caution:
The surface of the optical components consists of multiple dielectric layers with varying degrees of refraction.
Never use organic solvents (thinner, etc.) or any kind of
cleanser on these components.
Since the LCD panel is equipped with an electronic circuit, never use any liquids (water, etc.) to clean the unit.
Use of liquid may cause the unit to malfunction.
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 -0pFS : +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%
Boxlight
19332 Powder Hill Place
Poulsbo, WA 98370-7407 USA
www.boxlight.com
U.S. and Canada 800-762-5757
International 360-779-7901
Page 85
A1
MD8-CP-305t00
These schematic diagrams and printed wiring board drawings are part of the service manual original for chassis No. MD8-CP-305t00. File with the service manual No.
SM5110337.
This model provides the following boards, and the information of part numbers and values indicated on these diagrams are at the beginning of production.To improve the performance, there may be some differences to the actual set. When you order the service parts, use service parts code mentioned
on the parts list in this service manual.
Boar
d Name Board Number
KEY SW BOARD1AA0B10C34000
MAIN BOARD1AA0B10C369CA
TEMP BOARD1AA0B10C3690B
AV BOARD1AA0B10C3700A
AV SUB BOARD1AA0B10C3700B
POWER BOARD1AA0B10C352BA
P.F. BOARD1AA0B10C352BB
LINE FILTER BOARD1AA0B10C3520C
R/C BOARD1AA0B10C3520D
Schematic Diagrams
Printed Wiring Board Drawings
ModelChassis No.
CP-305tMD8-CP-305t00
■ Diagrams & Drawings
Page 86
A2
MD8-CP-305t00
■ Parts description and reading in schematic diagram
1. The parts specification of resistors, capacitors and
coils are expressed in designated code.Please check
the parts description by the following code table.
2. Some of transistors and diodes are indicated in mark
for the substitution of parts name. Please check the
parts name by the following code table.
3.Voltages and wa vef orms were taken with a video color
bar signal(1Vp-p at 75 ohms terminated) and controls
to normal.
4. Voltages were taken with a high-impedance digital
voltmeter.
Capacitor Reading
Example 2000 K K 1000 BG
Characteristic
Example 160
E M 10
Capacitance value
Excepting electric capacitors, all
capacitance values of less than 1
are expressed in µF and more
than 1 are in pF.
Tolerance
Type
Rated voltage
Resistor Reading
Example 1/2 D J 10K B
Characteristic
Example6W K 8.2
Example 1/2 C K 1M
Resistance value
Tolerance (see below table)
Material (see below table)
Rated wattage (W)
Note: Resistor which is indicated with resistance value only are
1/6W carbon resistor.Resistor which is indicated with mater ial, tolerance and value are 1/4W rated wattage.
Material table
Mark Material
DCarbon
NMetal film
SOxide metal film
CSolid
GMetal glaze
Tolerance
Inductance value
Manufacture code
Unique code
MarkTolerance (nH)MarkTolerance (%)
C±0.25G±2
D±0.5J±5
S±0.3K±10
A±0.2L±15
M±20
Diode/Transistor Type Reading
Diode
Mark Type number
R1S2076A,1S2473,1N4148
AA 1S2076A,1S2473,1SS133,1N4148
Transistor
(1) NPN type
MarkType number
--2SC5362SC945A2SC18152SC1740S
ADNF, NGPA, QAY, GRQ, R, S
AENF, NGPA, QA, RAO, Y, GRQ, R, S
(2) PNP type
MarkType number
--2SA6082SA564A2SA10152SA933S
ABNFRY, GRR
ACNFQ, RO, Y, GRQ, R
(3) Chip type
MarkType number
--2SA1179/N2SA1037K 2SA1037AK 2SC2812/N 2SC2412K
AJM6, M7R, SR, S
AHL6, L7R, S
Page 87
BLK_MD8AA3
■ Circuit Block Diagram
MOITOR
RGB
H-SYNC
V-SYNC
ANALOG
RGB
H-SYNC
V-SYNC
S-VIDEO
VIDEO INCOMPUTER INCOMPUTER OUT
Pr/Cr
Pb/Cb
VIDEO/Y
COMPUTER
AUDIO IN
VIDEO
AUDIO IN
AUDIO IN
EXTERNAL
SPEAKER
SPEAKER
SRIAL
PORT
IC3011
RGB-AMP.
2
15
5
12
7
10
11
8
3
6
IC3041
SYNC-BUFFER
S_SW
TP11SC
TP11SY
TP11PR
TP11PB
Cr_SW
Cb_SW
Y/CV
IC5161
PC_L/R
AV_L/R
TP11CV
Y/CV
Q2051
IC5211
RGB-AMP.
2
5
7
IC6211
IC6221
SCL2_5
SDA2_5
43
44
Cr
17
Cb
18
19
2
IC2101
DIGITAL
COMB
FILTER
C_SWIN
IC5011
AUDIO-SW
1
13
2
12
15
12
10
IC6241
SYNC DET.
2
3
13
5
11
13 14
IC1101
9
4
VIDEO
DECODER
9
7
10
11
15
14
9
21
22
23
75
YYC
Y
C
Q5072 Q5071
IC3801
RS232C
TXDTXD
RXD
13
IC5241
AV/PC-RGB-SW
R
8
G
10
B
12
R
1
G
3
B
5
22
PC/AV-SW
AV_HSYNC
AV_VSYNC
Cr
Cb
107
12
INVERTER
AV/PC
Q011
Q021
CONTROLLER
IC6101
13
11
1
5
20
18
16
SDA2_5
SCL2_5
IC6251
INVERTER
H
1512
V
8
4
12
10
Pr
Pb
Y
PRE-AMP.
IC3821
MOUSE
14
4
|
7
IC6171
17
16
H
V
8
H
HD_HSYNC
HD_VSYNC
HS_OUT
VS_OUT
IC001
AUDIO
5
1, 7
3
242, 6
MOUSE
CONTROLLER
TP52R
TP52G
TP52B
AFC
13
DET
12
V
CONTROL
IC3841
19185
|
12
IC5271
IC5281
IC5291
HAFC
IC5251
AV/PC
SYNC-SW
1
2
13
12
10 11
55 56
66
IC4101
65
RGB
29
28
MATRIX
67
69
73 74 75
IC031
AUDIO
18
17
13
14
MUTE
IC251
15
14
L
R
MOUSE
R/C
R
G
B
TP205
IC6271
BUFFER
2
5
AV/PC
RGB
39
37
35
CLMP
AV/PC
SYNC_SW
BLKC_DC
C_SWIN
S_SW
TP201R
TP201G
TP201B
HSYNC
H
3
6
R
G
B
VOLUME
7
15
IC201
22
A/D
40
TP62H
TP62V
AV-RGB
IC3101
BLANKING
1
3
13
15
4
2
14
5
12
9,10
IC2161
D/A
4,5,6
15
7
7
13
8
8
9,18,19
IC2181
I/O
11
2
3
12
29 30
P-SDA2
P-SCL2
IC3121
IC2131
IC3141
BLANK_SW
AUDIO MUTE
GB00-7
GBE0-7
GG00-7
GGE0-7
GR00-7
GRE0-7
H
V
FAN_CONT
VOL_CONT
MOUSE
HS
VS
R
G
B
IC1861
IC1811
SRAM
IC9801
USB
I/F
IC301
SCAN
CONVERTER
SYSTEM
CONTROL
34
100 101
IC4881
TEMP
SENSOR
IC2881
TEMP
SENSOR
IC1831
D/A
4,5
7
14
16
IC1801
EEP-ROM
5
6
121
RAM_A0-7
RAM_D0-7
D0-D15
A0-A19
1
2
1
2
2
3
FLASH ROM
323
244
240133
P-SDA2
P-SCL2
SCL1_5
SDA1_5
35
4
|
28
IC1391
SRAM
IC1341
DB0-9
DG0-9
DR0-9
TPDHS
TPDVS
TPCLK
Q1818/Q1819
80,8179,7896,97
BRIGHTER
5,49,12,3
DHS/DVS
DCLK
SCL2_5
SDA2_5
Q1816/Q1817
CONTROL
IC801
SUB
CPU
IC1401
DIGITAL
IC1871
BUFFER
SCL3
SDA3
29
30
3
91
29
30
33
34
DGB0-9
DGA0-9
DRA0-9
TURBO_1
SCLK1
SDATA1
IROMURA_CS_1
5,7,3
15,13,17
SLK
SDATA
IROMURA_CS
AUDIO
MUTE
LAMP_SW
IC401
DIGITAL
COLOR
UNIFORMITY
CORRECTION
TIMING
CONTROL
6,7 13
IC1881
BUFFER
MUTE
7
13
8
12
4,5
4,5
DBB0-9
B
DGB0-9
DRB0-9
119
120
121
SCL2_5
SDA2_5
LAMP_SW1
IC1851
I/O
2
3
IC5501
MONITOR DRIVE
IC5551
MONITOR DRIVE
G
R
CENT
REF
11
9
10
1,7
1,7
IC501
S&H_B1
IC1501
S&H_B2
IC531
S&H_G1
IC1531
S&H_G2
IC561
S&H_R1
IC1561
S&H_R2
IC1581
D/A
4
5
6
14
19
2
3
IC2571
D/A
2
3
12
13
|
5
|
7
Q2851
Q2865
Q2861
Q2856
RGT
DWN
TP25B1
TP25B2
TP25G1
TP25G2
TP25R1
TP25R2
NRS
VCOM
IC3531
G_LEVEL
SHIFT
22
3
6
IC3551
NRS
IC3561
R_LEVEL
SHIFT
22
3
7
IC3581
NRS
LAMP
READY
WARNING
LAMP REPLACE
ZOOM MOTOR
M
FOCUS MOTOR
M
B-LCD
PANEL
G-LCD
PANEL
TP3551
R-LCD
PANEL
TP3581
CPU_TXD
CPU_RXD
USB
USB_D+, D-
Page 88
A4BLK_MD8A
■ Power Supply Lines
AC CORD
LAMP BALLAST
UNIT
5VS
-5VS
5V PC
VGA
9V
AV BOARD
3.3VS
5VS
KEY SW BOARD
5VS
R/C BOARD
LINE FILTER BOARD
F601
FUSE
VA601
L601
P.F. BOARD
K6D
1
3
K8B
1
3
K3UK10U
1,2
5VS
5-8
-5VS
11-12
5V PC
15-18
K8AK68A
1
2
1
K8GK28B
9V
3.3VS
L602
K6B
BALAST_AC1
LAMP_ERR
SW902
THERMAL
SW.
SW904
INTER LOCK
SW.
6VS
5VD
15.5V
6V
K6C
DB611
R613/
R614
VR611
IC6651
IC6671
IC3361
IC6641
IC6661
IC6621
IC1171
L611
P.F.CONTROL
3.3V REG.
2.5V REG.
3.3V REG.
3.3V REG.
2.5V REG.
9V REG.
Q3591
5V REG.
Q611
IC611
Q3592
D614
C617
TSW611
3.3VS
2.5VS
3.3VAS
3.3V
2.5V
9V
15VL
5V
(IC1101)
3.3V
D6631
D6641
D6661
D6621
D3591
D1171
IC631
SWITCHING
POWER SUPPLY
K6FK6E
1,2
4,5
6
Q641
8
1
5
7
14
12
POWER BOARD
P-FAIL
CONVERTER
TRANSFORMER
D632
C642
FEED BACK
OVER VOLT ._DET.
LAMP_BST_SW
82
47
48
2
3
5
4
D1889
D1891
T651
PC641
PC642
PC643
6
9
11
7
8
10
IC1871
BUFFER
18
2
D651
15.5V
D652
D653
D654
IC651
REG.
Q651
9,10
K6S
K8S
LAMP_BST_SW1
3
IC801
SUB CPU
5V
-6V
3941
1
9V REG.
IC65A,
Q65A
12V REG.
IC681,
Q681
12V REG.
IC671,
Q671
Q661
Q691
LAMP_SW
BALAST_AC
POWER
FAN DRIVE
Q672
Q662
Q65B
Q682
9V MCI
Q65C
12V
Q66A
12V1
15.5V
6V AUDIO
L691
L692
L693
L694
IC1881
BUFFER
8
11
17
15
D65B
D682
D678
D661
12
-5VS
9
3
5
6V
6VD
6VS
K3W
FN902
FN901
K6J
K6K
D69BD69C
K8SK6S
K6R
11,12
37,38
29,39
13,14
25,26
15,16
K8R
10
8
6
4
2
FAN_DRIVE1FAN_DRIVE1
P-FAILP-FAIL
5V_SW5V_SW
LAMP_SW1
BALAST_AC1
5V_SW
FAN DRIVE1
K10W
33-36
9V MCI9V MCI
47-50
29,30
39,40
9V9V
3.3V3.3V
FN904
FN903
K6L
K6N
Q69A
12V
9V MCI
6V AUDIO
15.5V
6V5V
D6602
D6601
R6611
R6607
5VD
R6601
6VS5VS
-5VS
P-FAIL
D69C
K6S
36
35
K8S
K8N
FN905
K8P
FN906
D6611
D6606
5VS
TEMP BOARD
1
K8EK48E
5VS
MAIN BOARD
AV SUB BOARD
Page 89
A5SCH_MD8A
G
■ Schematic Diagrams
H
A
B
C
D
E
F
K
L
AC CORD
AC100-120V
AC200-240V
AT1
LF901
U20B30100
(LIVE)
(NEUT)
F.G.
LINE FILTER BAORD
C602
C601
VA601
1
(LIVE)
(NEUT)
2
K6A
J10EM
020N
F601
4A250V
TCSL
K6A_1
K6A_2
NT2
NT2
F601A
J20B
K6A_4K6A_3
00100
NT2NT2
K6W
F601B
J20B
00100
0043
VEV
1/2DJ
220K
R601
275GM
0.22
UVCA
275GM
0.22
UVCA
L601
F35B
0680N
C606
L602
F35B
0680N
C604
275GM
0.22
UVCA
C603
275GM
0.22
UVCA
X
F.G.
K6C_3
K6C_1
1
3
NT2
NT2
K6C_4
K6C_2
9V
MCI
ZOOM MOTOR
DRIVE
R5504
K6S
J10QG401G
2
1
K6S_1
K6S_2
NT2
NT2
K6S_3
K6S_4
ZOOM +
NT2
NT2
Z00M -
K6S_5
K6S_6
FOCUS +
NT2
FOCUS -
NT2
K6S_7
NT2
K6S_9
NT2
LAMP-BST-SW
K6S_11
NT2
FAN_DRIVE1
K6S_13
NT2
P-FAIL
K6S_15
NT2
5V_SW
K6S_19
NT2
FAN_CONT_1
K6S_21
NT2
FAN_CONT_2
K6S_30
K6S_29
NT2
NT2
9VMCI(1.15A)
K6S_33
NT2
K6S_36
K6S_35
NT2
NT2
K6S_38
K6S_37
NT2
NT2
K6S_39
NT2
39
40
1/3GJ12
EXHAUST FAN
FN901
M10B19400
INTAKE FAN
FN902
M10B19303
INTAKE FAN
FN903
M10B19304
INTAKE FAN
FN904
M10B19304
I
K6J
J10ES
K6J_1
1
036G
NT2
K6J_2
NT2
K6J_3
NT2
3
K6K
J10ES
1
K6K_1
036G
NT2
K6K_2
NT2
K6K_3
NT2
3
K6M
J10ES
1
K6M_1
036G
NT2
K6M_2
NT2
K6M_3
NT2
K6L
3
J10ES
1
K6L_1
036G
NT2
K6L_2
NT2
K6L_3
NT2
3
K6R
J10AU
100N
10
K6R_10B
K6R_10A
15.5V
NT2
NT2
K6R_9
(600mA)
NT2
K6R_8B
K6R_8A
6V
NT2
NT2
K6R_7
(250mA)
NT2
K6R_6B
K6R_6A
NT2
NT2
K6R_5
6VD(600mA)
NT2
K6R_4B
K6R_4A
NT2
NT2
K6R_3
6VS(1.02A)
NT2
K6R_2B
K6R_2A
-5VS
NT2
NT2
K6R_1
(60mA)
NT2
1
R69E
1/16GJ
10KC
D69C
DCB
015P
R69F
1/16GJ
10KC
1/16GJ
10KC
R69D
1/16GJ
10KC
D69B
DCB
015P
R69C
R5501
1/16GJ
1KC
R5505
1/16GJ
4.7KC
R5503
1/16GJ
470C
R5502
1/16GJ
1KC
Z00M -FOCUS -
R5506
1/16GJ
4.7KC
R5507
X
R69B
R69A
1/16
1/16
GJ
GJ
10KC
10KC
R69R
R69S
X
IC681
FA7612CN
R69Z
1/16
GZ0C
Q69A
2SC2412
KR
P-FAIL
P-FAIL
L691
L2M9391KN
L692
L2E6391KN
L693
L2E6101KN
L694
L2A7101KG
C69Z
25KZ
0.1
GQFY
R69H
1/16GJ
1KC
R69G
1/16
GJ
4.7KC
C691
6.3EM
1000CD
C692
6.3EM
1000CD
C693
6.3EM
1000CD
C694
6.3EM
1000CD
D69A
DCB
015P
1/16
GZ0C
C5503
43211234
IC5501
BA6287F
KZ0.01
GQFY
8765
D5501
UDZ6.8BG
:UDZS6.8BG
5V_SW
ON:H
1/16GJ
10KC
2SC2412
R65U
Q65C
KR
C65E
6.3EM
47WM
IC65A
R685
1/16
GJ
68KC
C682
KK
1000
GQBY
C683
KK
330
GQBY
AUDIO
6V
+9V
REG.
ON:H
R687
1/16GJ330KC
8765
REF
IN
D682
1SS355
R68I
1/16GJ
1KC
R68J
X
P-FAIL
Q691
2SK
3280P
R691
R692
1/16
1/16
GJ
GJ
22KC
100KC
CT
FB
C684
KK4700
GQBY
R68H
1/16GJ
22KC
CS
GND
VCCOUT
4321
C68A
X
1/16GJ
1KC
R688
1/16
GJ
180KC
R682
1/3
GJ47
1/16GJ
33KC
IMZ1AG
R68G
C663
X
R683
1GJ
330
R686
Q68A
FA7612CN
R65J
1/16GJ
4.3KC
R65K
1/16
GZ0C
FAN_DRIVE1
Q682
2SC2412
KR
C681
6.3
EM
47WM
Q681
2SB1204TP
:2SB1204SP
D681
RB051
L-40G
R68K
1/16
GJ
10KC
R68B
1/16
GZ0C
R68F
R68E
1/16
1/16
GJ
GJ
10KC
4.7KC
D661
1SS355
C661
25EM
1000CD
5V_SW
R664
1/16GJ
10KC
FOCUS MOTOR DRIVE
ON:H
R65Y
1/16GJ
R65Z
180KC
1/16GJ
330KC
R65E
1/16GJ
68KC
8765
CT
REF
C65B
KK
1000
GQBY
FB
IN
C65A
C65D
KK330
KK4700
GQBY
GQBY
R66A
2SC2412
1/16GJ
10KC
R689
1/16GJ10KC
ON:L
R684R674
1/16GJ
4.7KC
R681
1/3
GZ0
R675
1/16GJ
68KC
L681
L2M9101KN
C672
(100UH)
KK
1000
GQBY
IC671
FA7612CN
C686
16EM
470CD
R68A
P-FAIL
1/16
GF
27KC
FAN_CONT_1FAN_CONT_2
R68C
1/16
GZ0C
R68D
1/16GF
1KC
L661
L2M9470KN
(47UH)
R663
1/16GJ
4.7KC
POWER BOARD
R5554
IC5551
BA6287F
5678
D5551
D65A
R65I
R678
1/16
GJ
180KC
R672
1/3
GJ47
R673
1GJ
330
OUTVCC
R676
1/16GJ
33KC
Q67A
IMZ1AG
R67G
1/16
GZ0C
Q5551Q5501
2SC2412KR2SC2412KR
UDZ6.8BG
:UDZS6.8BG
ON:L
R65V
1/16GJ
10KC
R65A
1/3
GZ0
L65A
L2M9101KN
(100UH)
9V
MCI
C671
6.3
EM
47WM
2SB1204TP
:2SB1204SP
R67F
1/16
GJ
10KC
16EM
470CD
Q671
R67K
1/16
GJ
10KC
R5551
1/16GJ
1KC
R5555
1/16GJ
4.7KC
R5553
1/16GJ
470C
R5552
1/16GJ
1KC
R5556
1/16GJ
R5557
4.7KC
CS
GND
Q66A
C673
KK
330
GQBY
Q662
2SC2412KR
X
Q65B
2SC2412
R65W
KR
1/16GJ10KC
R65X
1/16GJ
4.7KC
R65B
Q65A
1/3
2SB1204TP
GJ47
:2SB1204SP
VCCOUT
RB051
R65C
L-40G
1GJ
330
4321
R65H
1/16GJ
10KC
R65G
P-FAIL
1/16GJ
68KC
D65B
1SS355
1/16GJ
33KC
KR
ON:H
R677
1/16GJ330KC
5678
CS
CT
REF
FB
GND
IN
1234
C674
KK4700
GQBY
D672
1SS355
R67H
1/16GJ
22KC
R67I
1/16GJ
1KC
Q661
2SB1565E
;2SB1565F
R662
1/3GJ
1000
C67A
R67J
X
X
1/16GJ
1KC
FAN CONTROL
R661
1/8GJ
10K
C65F
2SC2412
D671
RB051
L-40G
R67E
1/16
GJ
4.7KC
Q672
KR
C5553
KZ0.01
GQFY
R66B
1/16GJ
10KC
R679
1/16GJ
10KC
1/16GJ
4.7KC
R671
1/3
GZ0
L2M9101KN
(100UH)
C676
16EM
470CD
R67A
1/16
GF
27KC
R67B
1/16
GZ0C
R67C
1/16
GZ0C
R67D
1/16GF
1KC
C65G
25KZ
0.1
GQFY
ON:L
L671
K6U
J10EA
040N
15.5V
4
K6U_4
NT2
K6U_3
NT2
K6U_2
NT2
K6U_1
NT2
1
6V
(2.17A)
C655
25KZ
0.1
GQFY
-5VS
(60mA)
R656
1/16
GJ
270C
R657
1/16
GJ
1KC
ON:H
LAMP-BST-SW
TO LENS
MOTOR
15.5V
C654
25KZ
0.1
GQFY
6V
C652
10EM
3900
2H
C653
16EM
470SZ
-6V
REF
ANODE
CATHODE
IC651
UPC1093T
-E1
D653
SFPL-52V
1
2
3
1/16
GJ
4.7KC
C651
25EM
2700
2F
C658
KK330
GQBY
C657
KK330
GQBY
C656
10KK
0.47
LZB
R659
1/16GJ
1KC
R660
R615
1/2
GJ
240K
R616
1/2
GJ
240K
FMB-2306
C651_2
NT2
C651_1
NT2
C652_2
NT2
C652_1
NT2
C611
1000KK
1000NH
R62R
1/16
GJ
3.3MC
D651
D652
FMJ-23L
R653
1/16
GD
10KC
R654
1/16
GD
560C
R655
1/16
GD
6.8KC
K6C
NT2
NT2
J10EM
020N
DB611
D10XB60
C612
1000KK
1000NH
C615
400GJ
1.5P
R614
2XK
0.15VBD
D618
D619
R62P
1/16GJ
20KC
R613
2XK
0.15
VBD
D617
1SS355
D616
1SS355
C62I
KZ0.01
GQFY
PTH611
DHXAVB002
1SS355
1SS355
C62J
R62Q
CJ680
1/16GJ
CGQY
22C
C62K
KK0.022
LZBY
161514131211109
IDETCTSYNC REF
IC611
FA5332M
VDET
IIN-
IFB
C62A
CJ68
CGQY
R62B
1/16
C62B
GJ
10KC
KK470
GQBY
R62A
1/16GJ
1.5KC
T651
L51B2190N
1
6
9
2
11
3
7
5
8
410
PC641
F/B DET
14
2
D654
UDZS6.2BG
R652
1/16GJ
10C
O/V DET
14
R651
1/16GJ
1KC
2
R658
1/16
GJ
1KC
2
Q651
2SC
2412KR
EL0205
(TLP721F
C641
16KZ0.22
3
GQFY
PC642
EL0205
(TLP721F
3
PC643
EL0205
(TLP721F
41
3
R638
1/16GJ
10KC
R62C
1/16
GJ
470KC
R633
1/4FJ
22VRH
C634
2000KK
330NH
-GB)
-GB)
-GB)
R61A
1GJ47K
R61B
1GJ47K
R623
1/16GJ
4.7KC
CS
ON
OFF
P.F.CONTROL
VIN-
VFBOVP
C62C
25KK
0.033
GQBY
C62G
25KZ0.1
GQFY
C642
400NJ
0.022EAQ
R637
1/16GJ
4.7KC
R62L
1/16GJ
4.7KC
C62F
KK
0.068
GQ
R643
1/16
GZ0C
R61C
1GJ47K
R61D
1GJ47K
C62E
25KZ
0.1
GQFY
VCC
GND
R62D
1/16GJ
180KC
R62E
1/16GJ
1.1KC
D631
SFPL-52V
C635
2000KK
220AHH
R61E
1GJ47K
R61F
1GJ47K
VC
OUT
87654321
R635
1/16GJ1KC
R645
1/16GJ10KC
POWER FACTOR CORRECTION
L611
L26B
4140N
(850UH,2A)
TSW611
S10B3640N
:S40B0030N
(90C)
R62J
1/16GJ22C
Q621
2SC
2412
KR
R62H
1/16
GJ
330C
Q622
2SA
1037
AKR
R62G
1/16
GJ
100C
R62F
1/16GF
1.2KC
VR611
R3G4102
SJ
<B-1K>
R634
1/3GJ47
D633
UDZ12B
R636
1/3
GJ
120
14
1512108642
15
COLD SIDEHOT SIDE
J
CAUTION
Fuse of the specified parts number must be used.
Unauthorized substitutions may result in fire or accident.
CAUTION
Components indicated by a mark in this schematic diagram designate
components in which safety can be of special significance. It is, therefore,
particularly recommended that the replacement of these parts must be
made by exactly the same parts.
This projector is isolated from AC line by using the internal converter
transformer.
Please pay attention to the following notes in servicing.
1 Do not touch the part on hot side (primary circuit) or both parts on
hot and cold sides (secondary circuit) at the same time.
2 Do not shorten the circuit between hot and cold sides.
3 The grounding lead must be connected to the ground of the same
circuit when measuring of voltages and waveforms.