Sharp XG-C330X Service Manual ▷ View online
XG-C330X/C430X
3 – 1
XG-C330X
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)
Output polarizer R
Output Pre-polarizer R
LCD (R)
Input polarizer R
Dichroic filter R
Condencer lens R
Projection Lens
Cross dichroic
prism
M3
R
re
flec
to
r
CL4
CL5
Condencer lens 5
Input polarizer G
Input Pre-polarizer G
Condencer lens G
M3
M2
CL4
R
re
flect
or
Condencer lens 4
M1
LCD (G)
CL3-G
B
re
flec
tor
G
ref
le
cto
r
CL3-B
CL1
CL2
PBS
Condencer lens 2
Condencer lens 1
Light source
(Lamp)
(Lamp)
Input polarizer B
Output pre-polarizer B
Output pre-polarizer G
Output pre-pre-polarizer G
Output polarizer B
Output polarizer G
Input pre-polarizer B
LCD (B)
Condencer lens B
FLYEYE LENS (OUTPUT)
FLYEYE LENS (INPUT)
B
reflect
or
M4
XG-C330X/C430X
3 – 2
2. Adjusting the mirrors
This adjustment is needed when any of the optical parts of the optical mechanism has been replaced.
1. Disconnect the flat cables from all the LCD panels.
2. Light up the lamp.
3. Project a white-light image and check to see if there is any color tint in any direction. If any, use the M2, M4 and M5
adjusting levers.
4. Loosen the adjusting lever lock screws, make adjustments, and tighten up the lock screws.
3. Correcting color irregularities on white-only screen when replacing the lamp
If color irregularities are found at the right and left on a white-only screen after replacing the lamp, it is necessary to
readjust the optical axis of the new lamp. Take the following steps.
1. Open the lamp cover and loosen the screws A and B at the top of the lamp.
2. Using a screwdriver or the like, move the lever D in the arrow direction.
3. Temporarily fix the screws A and B, close the lamp cover, and check the white-only screen again for color
irregularities.
4. Repeat the above steps 1 and 2 until there will be no color irregularities. Now tighten up the screws A and B.
5. Finally secure the lamp cover back in position.
B l a c k
B l a c k
B l a c k
XG-C330X/C430X
3 – 3
4. Replacing the prism holder unit
1. Remove the two lock screws, and take the prism holder unit out of the optical unit.
2. Replace the prism holder unit with new one. Take the above step 1 in reverse order.
NOTE: Even if just one of the LCD panels is defective, it is necessary to replace the entire prism unit. Do not replace
just the defective LCD panel only. Under the present circumstances, please do not touch the display part of
LCD.
G-LCD panel
Optical unit
R-LCD panel
Prism holder unit lock screws
B-LCD panel
XG-C330X/C430X
4 – 1
XG-C330X
Service Manual
CHAPTER 4.
ELECTRICAL ADJUSTMENT
[1] PW software rewriting procedure
1. Prepare before rewriting.
1. Please prepare one RS232C cross cable and conversion cable.
Connect the conversion cable to the Projector, and it connects with a RS232C cross cable.
Connect opposite side to the serial port of personal computer.
Connect opposite side to the serial port of personal computer.
2. Open the filter cover of the bottom cabinet and insert the LEAF SW JIG:PSPAZB245WJKZ.
Projector will be rewriting mode.
If you don’t have LEAF SW JIG, open the top cabinet and select S2701 of main PWB to “WRITE” side.
Projector will be rewriting mode.
LEAF SW JIG:PSPAZB245WJKZ
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