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Service Manual
020-000793-01




D Series
LWU701i/LW751i/LX801i
LWU601i/LW651i
LWU701i
LW751i
LX801i
SERVICE MANUAL LWU601i
LW651i
Warning
The technical information and parts shown in this
manual are not to be used for: the development,
design, production, storage or use of nuclear, chemical,
biological or missile weapons or other weapons of
mass destruction; or military purposes; or purposes that
endanger global safety and peace. Moreover, do not
sell, give, or export these items, or grant permission for
use to parties with such objectives. Forward all inquiries
to the SUPPLIER.



Caution

radiation and materials, various measures are provided in this Multimedia LCD Projector.
Be sure to read cautionary items described in the manual to maintain safety before servicing.



Service Warning


cause bursting of the bulb.
3. This projector is provided with a high voltage circuit for the lamp. Do not touch the electric parts of
power unit (circuit) and power unit (ballast), after turning on the projector.
4. Do not touch the exhaust fan, during operation.
5. If replacing to the LCD PRISM assembly, do not hold the FPC of the LCD module assembly.




Contents
1. Features ------------------------------------------------------ 3 8. Disassembly diagram ----------------------------------- 71
----------------------------------------------- 4 9. Replacement parts list ---------------------------------102
3. Names of each part---------------------------------------- 5 10. RS-232C communication ----------------------------- 116
4. Adjustment --------------------------------------------------- 6 --------------------------------------------134
5. Troubleshooting ------------------------------------------ 14 12. Connector connection diagram ----------------------136
6. Service points --------------------------------------------- 26 13. Basic circuit diagram -----------------------------------138
7. Wiring diagram-------------------------------------------- 49




SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT.

Multimedia LCD Projector
LWU701i/LW751i/LX801i/LWU601i/LW651i
Service Manual
October 2015 020-000793-01
LIT MAN SERV D2
LWU701i / LW751i / LX801i / LWU601i / LW651i


CAUTION FOR SAFETY

Entries with graphical symbol explanation

WARNING
CAUTION
Typical graphical symbols explanation
This symbol indicates This symbol indicates This symbol indicates
warnings and cautions. hazard of high voltage. mandatory actions.
This symbol indicates This symbol indicates This symbol indicates
hazard of explosion. hazard of hand crush. coercing to unplug.
This symbol indicates This symbol indicates
hazard of high temperature. prohibited actions.


WARNING
Follow the instructions.

Follow those notes and the User's Manual - Safety Guide.
Avoid electric shock.

unplug when disassembling or assembling.
The projector has high voltage portion and possibly charged portion. If you touch such a


Use the components which have same characteristic especially about incombustibility

in the replacement parts list and circuit diagram.

Keep same style of wiring and components.
This product uses insulating tapes or tubes, and has some components assembled




Do safety inspection after repair work.


Measure the insulation resistance with megohmmeter after visual inspection. If the


CAUTION
Take care of LCD panels.
Hold by the frame when disassembling the component including LCD panel. If you hold
it by the FPC cable or the surface of the panel, it may get damaged.
Do not touch the fan motor while it is rotating.
Do not touch the fan motors when you have turned on the projector with the UPPER
CASE removed. It may injure you.


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Service Manual LIT MAN SERV D2
LWU701i / LW751i / LX801i / LWU601i / LW651i


1. Features

Not only can you control and monitor the projectors via LAN connection, but also project still or




wireless adapter.




alternately by themselves, and once one projector has an accident the other voluntarily starts to

> LENS MEMORY
The projector is capable of storing the lens shift position.
> Status monitor
The projector displays the present status or the error log with the sub LCD monitor.
> Flexible installation

accessories.

> Picture by Picture, Picture in Picture
You can project two images from different input ports on one screen at the same time. With the
remote control, it is easy to turn on/off this function and select the input source for the main and
sub areas.
> eClarity
eClarity is a function to improve the legibility so that it helps to read small letters.
> HDCR
Advanced feature which is the image stabilizer for a clearer image.
> HDBaseTTM covered
Gives one more digital interface to get clearer pictures on a screen.




LWU701i/LW751i/LX801i/LWU601i/LW651i 3 020-000793-01
Service Manual LIT MAN SERV D2
LWU701i / LW751i / LX801i / LWU601i / LW651i



Drive system TFT active matrix
LX801i: 2.0cm (0.79" type)
Panel size LW651i/LW751i: 1.9cm (0.75" type)
Liquid crystal
LWU601i/LWU701i: 1.9cm (0.76" type)
panel
LX801i: 1024(H) x 768(V)
Number of pixels LW651i/LW751i: 1280(H) x 800(V)
LWU601i/LWU701i: 1920(H) x 1200(V)
LWU601i/LW651i: 370W UHP
Lamp
LWU701i/LW751i/LX801i: 430W UHP
1 Type: T.M.D.S
HDMI Signal level: DC 3.3V