Hitachi SD-804, LL-805, UL-806 Lens Replacement Manual
ENGLISH
Lens Replacement Manual
■ Lens replacement should be performed by a service engineer.
■ When changing the lens, place the LCD projector right way up on a horizontal surface. Do not change the lens with the projector facing upwards or downwards or when
the projector is suspended.
Attaching the SD-804/LL-805/UL-806 Lens When Unpacking the LCD Projector
Attaching the USL-801/SL-802/SL-803 Lens When Unpacking the LCD Projector
1. Preparing to attach the lens (1)
Take the lens adapter supplied with the
LCD projector and mount it so that the
connector on the lens is aligned with the
socket of the lens adapter.
Caution:
■ Be careful not to touch the surface
of the lens.
■ Do not touch the socket of the lens
adapter or subject it to impact as
this may lead to malfunction.
■ Do not hold the lens by the lens
shade as this may lead to injury or malfunction.
■ Be sure to remove the tape fi xing the hexagonal screw on the lens.
■ Be sure to remove the lens cap. Installing the lens in the LCD projector with the
lens cap on may lead to malfunction.
2. Preparing to attach the lens (2)
Using the hexagon wrench supplied
with the LCD projector, attach the lens
adapter with the four hexagon screws on
the lens.
Connect the connector on the lens to the
socket of the lens adapter.
3. Preparing to attach the lens (3)
Unscrew the front ring from the LCD
projector and remove the cap.
Lens adapter
Socket
Connector
Lens shade
Hexagon wrench
Socket
Connector
Front ring
6. Attaching the lens (2)
Support the lens installed in the LCD
projector and move the lock lever on the
projector as far as it will go to the right
(until the lock lever clicks into the locked
position).
Caution:
■ To prevent the lens from falling off,
after attaching the lens, check that
it is securely mounted and that the
lock lever does not move.
7. Assembling the main unit parts (1)
Insert the two catches on the front cover
into the LCD projector body to attach the
front cover.
8. Assembling the main unit parts (2)
Have the blind sheet supplied with the
lens ready and mount it on the lens
shade.
Mount the blind sheet with its matte side
facing out.
Lock lever
Catch
Catches
Lens shade
Front cover
Lock lever
1. Lens attachment is completed.
Follow the procedures in step 1 through
step 6 for Attaching the SD-804/LL-805/
UL-806 Lens and install the lens in the
LCD projector.
2. Attaching the optional parts (1)
(SL-802/SL-803 only)
Have the two blinders supplied with the
lens ready and mount the fi rst blinder on
the lens shade.
3. Attaching the optional parts (2)
(SL-802/SL-803 only)
Rotate the attached blinder to the
underside of the lens and mount the
second blinder on the lens shade in the
same way.
Engage the two catches on these
blinders.
Blinder
Lens shade
Catch
Blinder
6. Attaching the optional parts (3)
(SL-802/SL-803 only)
Have the two protectors supplied with the
lens ready and insert the fi rst protector
between the front ring and the lens.
7. Attaching the optional parts (4)
(SL-802/SL-803 only)
Rotate the attached protector to the
underside of the lens and insert the
second protector in the same way
between the front ring and the lens.
Engage the two catches on the protector.
8. Lens attachment is completed.
Protector
Front ring
Catch
Protector
4. Preparing to attach the lens (4)
Lift off the front cover to remove it.
5. Preparing to attach the lens (1)
Make sure that the terminal on the lens
and the terminal on the LCD projector are
aligned.
Support the lens with the lens adapter
attached and install it in the LCD
projector so that the adapter rib fi ts into
the groove of the projector.
Caution:
■ Do not hold the lens by the lens
shade as this may lead to injury or
malfunction.
■ Take care to avoid hitting the surface of the lens on the LCD projector when
attaching the lens as this may lead to malfunction.
Front cover
Terminal on projector
Terminal on lens
Lens shade
Rib
Cap
Groove
9. Assembling the main unit parts (3)
Screw on the front ring.
Caution:
■ Take care not to get the blind sheet
trapped when fi tting the front ring
as this may lead to malfunction.
10. Lens attachment is completed.
Front ring
Blind sheet
4. Assembling the main unit parts (1)
Insert the two catches on the front cover
into the LCD projector body to attach the
front cover.
5. Assembling the main unit parts (2)
Screw on the front ring.
Caution:
■ Take care not to get the blind sheet
trapped when fi tting the front ring
as this may lead to malfunction.
Catch
Catches
Front cover
Front ring
Caution:
■ When using the USL-801 lens, the
edges of the projected image may
appear dark or shadows may be visible.
If this happens, use the lens shift
function to adjust the position of the
projected image.
QR77621A
Changing from an SD-804/LL-805/UL-806 Lens to a USL-801/SL-802/SL-803 Lens
Changing from a USL-801/SL-802/SL-803 Lens to an SD-804/LL-805/UL-806 Lens
1. Disassembling the main unit parts (1)
Unscrew the front ring.
Caution:
■ Be sure to turn off the LCD projector
before changing the lens.
■ Return the lens shift to the center
position. Refer to the user manual
supplied with the LCD projector for
instructions on how to return the
lens shift to the center position.
2. Disassembling the main unit parts (2)
Remove the blind sheet.
3. Disassembling the main unit parts (3)
Remove the front cover.
4. Removing the lens (1)
Support the lens and move the lock lever
to the left while pressing the lock lever
release button on the LCD projector.
5. Removing the lens (2)
Support the lens and remove the lens from
the LCD projector. Place the detached
lens on a soft cloth or similar.
Caution:
■ Do not hold the lens by the lens shade
when removing the lens as this may
lead to injury or malfunction.
■ Take care to avoid hitting the surface
of the lens on the LCD projector
when removing the lens as this may
lead to malfunction.
6. Removing the lens (3)
Unplug the connector on the lens from
the socket of the lens adapter.
Using the hexagon wrench supplied
with the LCD projector, loosen the four
hexagon screws on the lens and remove
the lens adapter.
Have the replacement USL-801/SL-802/
SL-803 lens ready. Follow the procedures
in steps 1 and 2 for Attaching the SD-804/
LL-805/UL-806 Lens and mount the lens
adapter on the replacement lens.
7. Attaching the lens (1)
Follow the procedures in steps 5 and 6
for Attaching the SD-804/LL-805/UL-806
Lens and install the lens in the LCD
projector. Support the lens with the lens
adapter attached and install it in the LCD
projector.
Caution:
■ Do not hold the lens by the lens shade
when attaching the lens as this may
lead to injury or malfunction.
■ Take care to avoid hitting the surface
of the lens on the LCD projector
when attaching the lens as this may lead to malfunction.
Front cover
Lens shade
Terminal on projector
Terminal on lens
Front ring
Lens shade
Release button
Socket
Connector
Blind sheet
Lock lever
Hexagon wrench
Rib
Groove
8. Attaching the lens (2)
Support the lens installed in the LCD
projector and move the lock lever on the
projector as far as it will go to the right
(until the lock lever clicks into the locked
position).
Caution:
■ To prevent the lens from falling off,
after attaching the lens, check that
it is securely mounted and that the
lock lever does not move.
9. Attaching the optional parts (1)
(SL-802/SL-803 only)
Have the two blinders supplied with the
lens ready and mount the fi rst blinder on
the lens shade.
10. Attaching the optional parts (2)
(SL-802/SL-803 only)
Rotate the attached blinder to the
underside of the lens and mount the
second blinder on the lens shade in the
same way.
Engage the two catches on these
blinders.
11. Assembling the main unit parts (1)
Insert the two catches on the front cover
into the LCD projector body to attach the
front cover.
12. Assembling the main unit parts (2)
Screw on the front ring.
13. Attaching the optional parts (3)
(SL-802/SL-803 only)
Have the two protectors supplied with the
lens ready and insert the fi rst protector
between the front ring and the lens.
14. Attaching the optional parts (4)
(SL-802/SL-803 only)
Rotate the attached protector to the
underside of the lens and insert the
second protector in the same way
between the front ring and the lens.
Engage the two catches on the protector.
10. Lens attachment is completed.
Lock lever
Blinder
Lens shade
Catch
Catch
Catches
Protector
Front ring
Catch
Lock lever
Front cover
Blinder
Front ring
Blinder
1. Removing the optional parts (1)
(SL-802/SL-803 only)
Rotate the protector 90° until the catch is
at the top.
Caution:
■ Be sure to turn off the LCD projector
before changing the lens.
■ Return the lens shift to the center
position. Refer to the user manual
supplied with the LCD projector for
instructions on how to return the
lens shift to the center position.
2. Removing the optional parts (2)
(SL-802/SL-803 only)
Using a fi ne-tipped object or the hexagon
wrench supplied with the LCD projector,
disengage the catch on the protector.
Disengage the catch on the opposite side
in the same way.
3. Removing the optional parts (3)
(SL-802/SL-803 only)
Remove the two protectors.
4. Disassembling the main unit parts
Unscrew the front ring.
Remove the front cover.
5. Removing the optional parts (4)
(SL-802/SL-803 only)
Rotate the blinder 90° until the catch is at
the top.
Disengage the catch on the opposite side
in the same way.
Disengage the catch on the opposite side
in the same way.
6. Removing the optional parts (5)
(SL-802/SL-803 only)
Remove the two blinders.
7. Removing the lens (1)
Support the lens and move the lock lever
to the left while pressing the lock lever
release button on the LCD projector.
Protector
Hexagon wrench
Catch part
Protector
Front cover Front ring
Catch
Release button
Catch
Lock lever
Catch
8. Removing the lens (2)
Support the lens and remove the lens from
the LCD projector. Place the detached
lens on a soft cloth or similar.
Caution:
■ Do not hold the lens by the lens
shade when removing the lens as this
may lead to injury or malfunction.
■ Take care to avoid hitting the surface
of the lens on the LCD projector
when removing the lens as this may
lead to malfunction.
9. Removing the lens (3)
Unplug the connector on the lens from
the socket on the lens adapter.
Using the hexagon wrench supplied
with the LCD projector, loosen the four
hexagon screws on the lens and remove
the lens adapter.
Have the replacement USL-801/SL-802/
SL-803 lens ready. Follow the procedures
in steps 1 and 2 for Attaching the SD-804/
LL-805/UL-806 Lens and mount the lens
adapter on the replacement lens.
10. Attaching the lens (1)
Follow the procedures in steps 5 and 6 for
Attaching the SD-804/LL-805/UL-806 Lens
and install the lens in the LCD projector.
Support the lens with the lens adapter
attached and install it in the LCD projector.
Caution:
■ Do not hold the lens by the lens shade
when attaching the lens as this may
lead to injury or malfunction.
■ Take care to avoid hitting the surface of
the lens on the LCD projector when attaching the lens as this may lead to malfunction.
11. Attaching the lens (2)
Support the lens installed in the LCD
projector and move the lock lever on the
projector as far as it will go to the right
(until the lock lever clicks into the locked
position).
After attaching the lens, check that it is
securely mounted and that the lock lever
does not move.
Caution:
■ To prevent the lens from falling off, after attaching the lens, check that it is
securely mounted and that the lock lever does not move.
12. Assembling the main unit parts (1)
Insert the two catches on the front cover
into the LCD projector body to attach the
front cover.
13. Assembling the main unit parts (2)
Have the blind sheet supplied with the
lens ready and mount it on the lens
shade.
Mount the blind sheet with its matte side
facing out.
14. Assembling the main unit parts (3)
Screw on the front ring. 10. Lens
attachment is completed.
Caution:
■ Take care not to get the blind sheet
trapped when fi tting the front ring
as this may lead to malfunction.
Lens shade
Socket
Connector
Terminal on projector
Terminal on lens
Lens shade
Lock lever
Catch
Catch
Lens shade
Blind sheet
Front ring
Hexagon wrench
Groove
Lock lever
Front cover
Rib
QR77621A
Flange-back Adjustment (USL-801 only)
(The two blinders and two protectors are not supplied with the USL-801 lens.)
1. Check the surrounding focus
When an image is projected onto the
screen after the USL-801 lens has
been installed in the LCD projector, the
surrounding area may be out of focus in
relation to the center.
If this happens, adjust the fl ange-back
(FB) of the lens. The surrounding focus
can be corrected by adjusting the fl ange-
back.
Caution:
■ As the fl ange-back has already been
adjusted at the factory prior to shipping, do not adjust more than necessary.
2. Remove the lens
Place the detached lens on a soft cloth
or similar.
Caution:
■ Be sure to turn off the LCD projector
before changing the lens.
■ Return the lens shift to the center
position. Refer to the user manual
supplied with the LCD projector for
instructions on how to return the
lens shift to the center position.
3. Remove the fi xing ring
Using the small hexagon pin supplied
with the lens, loosen the setscrew on the
fi xing ring and unscrew the fi xing ring.
4. Loosen the setscrews
Using the small hexagon pin supplied
with the lens, loosen the three setscrews
for fi xing the lens body.
5. Loosen the temporary fi xing screw (1)
Using the large hexagon pin supplied
with the lens, loosen the temporary fi xing
screw on the underside.
Caution:
■ Do not loosen the temporary fi xing
screw on the top until the lens is
installed in the LCD projector.
6. Install the lens
Follow the procedures in Attaching the
Lens and install the lens in the LCD
projector.
Position the LCD projector at the desired
projection distance or desired projection
size.
Fixing ring
Three setscrews
Lens body
Temporary fi xing
screw (underside)
Temporary fi xing screw (top)
*Do not loosen.
Surrounding area
Center
One setscrew
7. Insert the FB adjustment pin
Insert the supplied FB adjustment pin in
the FB adjustment window on the lens.
Insert the narrow end of the FB
adjustment pin.
8. Loosen the temporary fi xing screw (2)
Using the large hexagon pin, loosen the
temporary fi xing screw on the top.
9. Prepare for fl ange-back adjustment
Project the image for adjustment from the
LCD projector onto the screen. Move the
FB adjustment pin slowly clockwise or
counterclockwise and adjust the fl ange-
back while checking the projected image,
until the center of the image comes into
focus.
10. Adjust the fl ange-back
If the surrounding area in the near
screen is in focus while the center of the
image is in focus, follow the procedure
below to adjust the fl ange-back.
(1) Use the LCD projector remote
control or control panel to adjust the
surrounding focus in the + (plus)
direction.
(2) Move the FB adjustment pin slowly
counterclockwise until the center
comes into focus.
(3) Check the surrounding focus.
(4) If the surrounding area is still not in
focus, repeat steps (1) through (3)
above.
If the surrounding area in the far screen
is in focus while the center of the image
is in focus, follow the procedure below to
adjust the fl ange-back.
(1) Use the LCD projector remote
controller or operation panel to adjust
the surrounding focus in the - (minus)
direction.
(2) Move the FB adjustment pin slowly
clockwise until the center comes into
focus.
(3) Check the surrounding focus.
(4) If the surrounding area is still not in
focus, repeat steps (1) through (3)
above.
FB adjustment window
Counterclockwise
Clockwise
FB adjustment pin
Center
FB adjustment window
FB adjustment pin
Temporary fi xing
screw (top)
FB adjustment pin
Surrounding area
11. Fix the fl ange-back adjustment (1)
To fi x the focus after fl ange-back
adjustment, use the large hexagon pin to
tighten the temporary fi xing screw on the
top.
12. Fix the fl ange-back adjustment (2)
Remove the lens, which is fi xed
temporarily with the screw on the top,
and place it on a soft cloth or similar.
Tighten the temporary fi xing screw on the
underside in the same way.
13. Fix the fl ange-back adjustment (3)
Using the small hexagon pin, tighten the
three setscrews on the lens body.
14. Fix the fl ange-back adjustment (4)
Mount the fi xing ring on the lens and
screw on. Mount the fi xing ring with the
threaded side facing down.
15. Fix the fl ange-back adjustment (5)
Tighten the setscrew on the fi xing ring.
16. Install the lens
Follow the procedure in Attaching the
Lens to complete installation of the lens
in the LCD projector.
(The two blinders and two protectors are
not supplied with the USL-801 lens.)
Lens body
Fixing ring
Fixing ring
Temporary fi xing screw
(one on the top)
FB adjustment pin
Temporary fi xing
screw (underside)
Three setscrews
One setscrew
QR77621A
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