XV-Z21000 (serv.man5). Optical Unit Outline - Sharp Projector Service Manual (repair manual)

Model
XV-Z21000 (serv.man5)
Pages
4 Few pages! See other manuals at the bottom of the first or last page.
Size
751.13 KB
Type
PDF
Document
Service Manual
Brand
Device
Projector / Optical Unit Outline
File
xv-z21000-sm5.pdf
Date

View Sharp XV-Z21000 (serv.man5) Service Manual online

XV-Z20000/XV-Z21000/DT-5000
3 – 1
XV-Z20000
Service Manual
 
CHAPTER 3. 
THE OPTICAL UNIT OUTLINE
[1] THE OPTICAL UNIT OUTLINE
1. Layout for proper setup of the optical components and parts (top view)
Item
Descriptions
1. Lamp
The DC Light source lamp with parabola reflector.
2. Condensor lens, IR-cut mirror and light- tunnel
The condensor lens leads the light generated from the lamp to the end surface of the light-tun-
nel through the IR-cut mirror.
The IR-cut mirror is set in this unit to eliminate the excessive heat by the lamp energy.
3. Color filter
This color filter separates the white light into the 3 colors R,G and B.
A photo-sensor should be set in this unit to detect the transition timing properly between color 
filters.
The maximum rotating speed is 9000rpm.
4. Relay lens and fold mirror
This unit leads the illumination spot to effective area on DMD.
5. Prism
This prism also leads the illumination spot to effective area on DMD and at the same time leads 
the reflection lights on the DMD to the projection lens.
6. DMD chip
This chip turns on and off in projection to each color component per dot depending on the input 
source.
7. Projection lens
This lens enlarges and projects the incidend light coming from the DMD.
Lamp
Condensor lens
Condensor lens
IR-cut mirror
Light tunnel
Relay lens
Fold mirror
Color filter
DMD Chip
Projection lens
Prism
XV-Z20000/XV-Z21000/DT-5000
3 – 2
2. Adjusting the mirrors
Make adjustment by the indication territory on the screen to prevent the circumference of the screen from getting dark because a lighting range devi-
ated.
1. Remove the top body so that the optical unit may be seen. Display white only screen on the screen.
2. Detach the mirror adjustment part cover 
 on the bottom right of the projection lens.
3. Turn three screws with special hexagon wrench (9HPH10XL120) and adjust so that a part of the screen may not get dark because a lighting range
deviated
4. Mount the adjustment part cover 
.
5. Mount the top panel.
3. Adjusting the back focal distance after replacing the projection lens
NOTE: A piece of temporary tape is attached on the focus ring that comes with the replacement projection lens. Keep this tape in place until the finish
of the adjustment.
1. Provide a distance of 2.4 m between the set and the screen and adjust the zoom knob to “wide end”.
2. Adjust the lens shift until the projection lens comes to the same level as the center of the screen.
3. Detach the optical unit top cover A from behind the projection lens.
4. Loosen the four hex screws B in the back of the projection lens.
5. Insert the adjustment screwdriver C (9EVDRIVERZ9000) in the hole D at the back of the lens. Put the center of the screen in the best focus. (Pref-
erably feed the signal for 1-dot white crosshatch pattern or 1-dot white dot pattern on black background.)
6. Tighten the four hex screws B to the torque of 0.3 Nm (3.06 kgfcm), and apply screw loctite to them.
7. Peel the temporary tape off the focus ring of the projection lens.
8. Attach the optical unit top cover A back into position. Finally fix the two screws E and apply screw loctite to them.
1
1
Expansion figure of part A
Insert hexagon wrench
in this direction.
XV-Z20000/XV-Z21000/DT-5000
3 – 3
4. Joint of DMD and the unit
Wipe to clean the contamination of the PWB contacting part (gold plating part) with ethanol.
Set the position of the interposer with DMD attached to the optical unit, and then put the unit PWB on the interposer.
Sandwich the unit PWB and the back plate with the heatsink from the reverse side of the unit PWB and tighten with screws and springs.
The tightening toruqus is 0.45
±0.05 Nm (4.5Kgfcm)
Formatter unit
Backer plate
Heat sink
Spring (4pcs)
Screw (4pcs)
Backer Plate Sheet
Carbon Sheet
DMD
DMD Shield
Interposer
XV-Z20000/XV-Z21000/DT-5000
3 – 4
5. When the DMD unit has been replaced
NOTE: DMD chip and Formatter PWB are supplied at the same time, and an exchange only with DMD isn’t done. Refer to "REMOVING OF MAJOR
PARTS" when exchanging Formatter PWB.
There is no need to readjust the back focal distance of the projection lens. If focusing is noticeably poor, however, make this readjustment.
1. Provide a distance of 2.4 m between the set and the screen.
2. Adjust the lens shift until the projection lens comes to the same level as the center of the screen.
3. Detach the optical unit top cover A from behind the projection lens.
4. Loosen the four hex screws B in the back of the projection lens.
5. Adjust the zoom knob at the front of the projection lens to "tele end" and ensure good focusing.
6. Then adjust the zoom knob at the front of the projection lens to "wide end".
7. Insert the adjustment screwdriver C (9EVDRIVERZ9000) in the hole D at the back of the lens. Put the center of the screen in the best focus. (Pref-
erably feed the signal for 1-dot white crosshatch pattern or 1-dot white dot pattern on black background.)
8. Move the zoom knob from "wide end" back to "tele end" and see if focusing is ensured. If not, repeat the above steps (5), (6) and (7) until the best
focus is achieved.
9. Tighten the four hex screws B to the torque of 0.3 Nm (3.06 kgfcm), and apply screw loctite to them.
10.Attach the optical unit top cover A back into position. Finally fix the two screws E and apply screw loctite to them.
E
E
A
C
X
B
B
B
B
D
Expansion figure
of part X
XV-Z20000/XV-Z21000/DT-5000
3 – 4
5. When the DMD unit has been replaced
NOTE: DMD chip and Formatter PWB are supplied at the same time, and an exchange only with DMD isn’t done. Refer to "REMOVING OF MAJOR
PARTS" when exchanging Formatter PWB.
There is no need to readjust the back focal distance of the projection lens. If focusing is noticeably poor, however, make this readjustment.
1. Provide a distance of 2.4 m between the set and the screen.
2. Adjust the lens shift until the projection lens comes to the same level as the center of the screen.
3. Detach the optical unit top cover A from behind the projection lens.
4. Loosen the four hex screws B in the back of the projection lens.
5. Adjust the zoom knob at the front of the projection lens to "tele end" and ensure good focusing.
6. Then adjust the zoom knob at the front of the projection lens to "wide end".
7. Insert the adjustment screwdriver C (9EVDRIVERZ9000) in the hole D at the back of the lens. Put the center of the screen in the best focus. (Pref-
erably feed the signal for 1-dot white crosshatch pattern or 1-dot white dot pattern on black background.)
8. Move the zoom knob from "wide end" back to "tele end" and see if focusing is ensured. If not, repeat the above steps (5), (6) and (7) until the best
focus is achieved.
9. Tighten the four hex screws B to the torque of 0.3 Nm (3.06 kgfcm), and apply screw loctite to them.
10.Attach the optical unit top cover A back into position. Finally fix the two screws E and apply screw loctite to them.
E
E
A
C
X
B
B
B
B
D
Expansion figure
of part X
XV-Z20000/XV-Z21000/DT-5000
3 – 4
5. When the DMD unit has been replaced
NOTE: DMD chip and Formatter PWB are supplied at the same time, and an exchange only with DMD isn’t done. Refer to "REMOVING OF MAJOR
PARTS" when exchanging Formatter PWB.
There is no need to readjust the back focal distance of the projection lens. If focusing is noticeably poor, however, make this readjustment.
1. Provide a distance of 2.4 m between the set and the screen.
2. Adjust the lens shift until the projection lens comes to the same level as the center of the screen.
3. Detach the optical unit top cover A from behind the projection lens.
4. Loosen the four hex screws B in the back of the projection lens.
5. Adjust the zoom knob at the front of the projection lens to "tele end" and ensure good focusing.
6. Then adjust the zoom knob at the front of the projection lens to "wide end".
7. Insert the adjustment screwdriver C (9EVDRIVERZ9000) in the hole D at the back of the lens. Put the center of the screen in the best focus. (Pref-
erably feed the signal for 1-dot white crosshatch pattern or 1-dot white dot pattern on black background.)
8. Move the zoom knob from "wide end" back to "tele end" and see if focusing is ensured. If not, repeat the above steps (5), (6) and (7) until the best
focus is achieved.
9. Tighten the four hex screws B to the torque of 0.3 Nm (3.06 kgfcm), and apply screw loctite to them.
10.Attach the optical unit top cover A back into position. Finally fix the two screws E and apply screw loctite to them.
E
E
A
C
X
B
B
B
B
D
Expansion figure
of part X
XV-Z20000/XV-Z21000/DT-5000
3 – 4
5. When the DMD unit has been replaced
NOTE: DMD chip and Formatter PWB are supplied at the same time, and an exchange only with DMD isn’t done. Refer to "REMOVING OF MAJOR
PARTS" when exchanging Formatter PWB.
There is no need to readjust the back focal distance of the projection lens. If focusing is noticeably poor, however, make this readjustment.
1. Provide a distance of 2.4 m between the set and the screen.
2. Adjust the lens shift until the projection lens comes to the same level as the center of the screen.
3. Detach the optical unit top cover A from behind the projection lens.
4. Loosen the four hex screws B in the back of the projection lens.
5. Adjust the zoom knob at the front of the projection lens to "tele end" and ensure good focusing.
6. Then adjust the zoom knob at the front of the projection lens to "wide end".
7. Insert the adjustment screwdriver C (9EVDRIVERZ9000) in the hole D at the back of the lens. Put the center of the screen in the best focus. (Pref-
erably feed the signal for 1-dot white crosshatch pattern or 1-dot white dot pattern on black background.)
8. Move the zoom knob from "wide end" back to "tele end" and see if focusing is ensured. If not, repeat the above steps (5), (6) and (7) until the best
focus is achieved.
9. Tighten the four hex screws B to the torque of 0.3 Nm (3.06 kgfcm), and apply screw loctite to them.
10.Attach the optical unit top cover A back into position. Finally fix the two screws E and apply screw loctite to them.
E
E
A
C
X
B
B
B
B
D
Expansion figure
of part X
XV-Z20000/XV-Z21000/DT-5000
3 – 4
5. When the DMD unit has been replaced
NOTE: DMD chip and Formatter PWB are supplied at the same time, and an exchange only with DMD isn’t done. Refer to "REMOVING OF MAJOR
PARTS" when exchanging Formatter PWB.
There is no need to readjust the back focal distance of the projection lens. If focusing is noticeably poor, however, make this readjustment.
1. Provide a distance of 2.4 m between the set and the screen.
2. Adjust the lens shift until the projection lens comes to the same level as the center of the screen.
3. Detach the optical unit top cover A from behind the projection lens.
4. Loosen the four hex screws B in the back of the projection lens.
5. Adjust the zoom knob at the front of the projection lens to "tele end" and ensure good focusing.
6. Then adjust the zoom knob at the front of the projection lens to "wide end".
7. Insert the adjustment screwdriver C (9EVDRIVERZ9000) in the hole D at the back of the lens. Put the center of the screen in the best focus. (Pref-
erably feed the signal for 1-dot white crosshatch pattern or 1-dot white dot pattern on black background.)
8. Move the zoom knob from "wide end" back to "tele end" and see if focusing is ensured. If not, repeat the above steps (5), (6) and (7) until the best
focus is achieved.
9. Tighten the four hex screws B to the torque of 0.3 Nm (3.06 kgfcm), and apply screw loctite to them.
10.Attach the optical unit top cover A back into position. Finally fix the two screws E and apply screw loctite to them.
E
E
A
C
X
B
B
B
B
D
Expansion figure
of part X
XV-Z20000/XV-Z21000/DT-5000
3 – 4
5. When the DMD unit has been replaced
NOTE: DMD chip and Formatter PWB are supplied at the same time, and an exchange only with DMD isn’t done. Refer to "REMOVING OF MAJOR
PARTS" when exchanging Formatter PWB.
There is no need to readjust the back focal distance of the projection lens. If focusing is noticeably poor, however, make this readjustment.
1. Provide a distance of 2.4 m between the set and the screen.
2. Adjust the lens shift until the projection lens comes to the same level as the center of the screen.
3. Detach the optical unit top cover A from behind the projection lens.
4. Loosen the four hex screws B in the back of the projection lens.
5. Adjust the zoom knob at the front of the projection lens to "tele end" and ensure good focusing.
6. Then adjust the zoom knob at the front of the projection lens to "wide end".
7. Insert the adjustment screwdriver C (9EVDRIVERZ9000) in the hole D at the back of the lens. Put the center of the screen in the best focus. (Pref-
erably feed the signal for 1-dot white crosshatch pattern or 1-dot white dot pattern on black background.)
8. Move the zoom knob from "wide end" back to "tele end" and see if focusing is ensured. If not, repeat the above steps (5), (6) and (7) until the best
focus is achieved.
9. Tighten the four hex screws B to the torque of 0.3 Nm (3.06 kgfcm), and apply screw loctite to them.
10.Attach the optical unit top cover A back into position. Finally fix the two screws E and apply screw loctite to them.
E
E
A
C
X
B
B
B
B
D
Expansion figure
of part X
XV-Z20000/XV-Z21000/DT-5000
3 – 4
5. When the DMD unit has been replaced
NOTE: DMD chip and Formatter PWB are supplied at the same time, and an exchange only with DMD isn’t done. Refer to "REMOVING OF MAJOR
PARTS" when exchanging Formatter PWB.
There is no need to readjust the back focal distance of the projection lens. If focusing is noticeably poor, however, make this readjustment.
1. Provide a distance of 2.4 m between the set and the screen.
2. Adjust the lens shift until the projection lens comes to the same level as the center of the screen.
3. Detach the optical unit top cover A from behind the projection lens.
4. Loosen the four hex screws B in the back of the projection lens.
5. Adjust the zoom knob at the front of the projection lens to "tele end" and ensure good focusing.
6. Then adjust the zoom knob at the front of the projection lens to "wide end".
7. Insert the adjustment screwdriver C (9EVDRIVERZ9000) in the hole D at the back of the lens. Put the center of the screen in the best focus. (Pref-
erably feed the signal for 1-dot white crosshatch pattern or 1-dot white dot pattern on black background.)
8. Move the zoom knob from "wide end" back to "tele end" and see if focusing is ensured. If not, repeat the above steps (5), (6) and (7) until the best
focus is achieved.
9. Tighten the four hex screws B to the torque of 0.3 Nm (3.06 kgfcm), and apply screw loctite to them.
10.Attach the optical unit top cover A back into position. Finally fix the two screws E and apply screw loctite to them.
E
E
A
C
X
B
B
B
B
D
Expansion figure
of part X

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