Sharp XG-NV21SE (serv.man4) Service Manual ▷ View online
19
XG-NV21SE
XG-NV21SM
XG-NV21SA
X direction
LCD right and left
Convergence Y direction
LCD top and bottom
θ
Z direction
Rotation around Z axis
LCD turning axis
Z direction
LCD optical axis
Focus
θ
X direction
Rotation around X axis
LCD top-to-bottom flapping
θ
Y direction
Rotation around Y axis
LCD right-to-left flapping
X direction
±0.8mm Eccentric cam
Eccentric cam adjusting wrench
d
Hex wrench
Convergence
Y direction
±0.8mm Eccentric cam
Eccentric cam adjusting wrench
d
Hex wrench
R/B
θ
Z direction
±1°
Eccentric cam
Eccentric cam adjusting wrench
d
Hex wrench
colours
Z direction
±0.8mm Notch and hole "a" & "c"
Eccentric screwdriver,
a, c
Focus
θ
X direction
±1°
Notch and hole "a" & "c"
Bladed screwdriver
a, c
θ
Y direction
±1°
Notch and hole "b" & "c"
b, c
Z direction
±0.2mm
G colour
Focus
θ
X direction
±1°
Same as for R and B colours
θ
Y direction
±1°
Colour
Adjustment
Direction
Movement
Position
Adjusting tool
Lock screw
Tightening tool
Convergence and Focus Adjustments at a Glance
Adjustment directions
Adjustment
Direction
Definition
Direction of LCD panel
Convergence and Focus Adjustment for the Optical Mechanism
Phillips
screwdriver,
*Hex wrench
screwdriver,
*Hex wrench
Focus Adjustments the Other Way
a
Notch and hole "a"
Z and
θ
X directions
b
Notch and hole "b"
θ
Y direction
c
Notch and hole "c"
Z,
θ
X and
θ
Y directions
Lock screw
Position
Related direction
Tool
Specific or General
Tool code
Configuration
Eccentric cam
Specific
9DASPN-XGNV1U
adjusting wrench
Eccentric screwdriver Specific
9EQDRiVER-NV1A
Hex wrench
General (redesigned)
9EQLNC-XGNV1U
Bladed screwdriver
General
9EQDRiVER-NV1B
80
Convergence and Focus Adjusting and Tightening Tools
*Hex wrench
General
—
Preferably use a 70 mm or longer
screwdriver (with a handle).
screwdriver (with a handle).
Phillips screwdriver
General
—
For M2.6 pan-head machine screw
100
2
5
16
R2
50
CUT
0.5
min85
ø
5
ø
3.5
3.5
20
XG-NV21SE
XG-NV21SM
XG-NV21SA
Replacing the LCDs
With the top cabinet removed
(1) Disconnect the LCD flat cable from the output PWB connector.
(2) Remove the lock screws "b" and "c". Detach the R/B adjusting plate or the G adjusting plate together with the LCD
(1) Disconnect the LCD flat cable from the output PWB connector.
(2) Remove the lock screws "b" and "c". Detach the R/B adjusting plate or the G adjusting plate together with the LCD
panel.
(3) Separate the LCD panel from the adjusting plate.
(4) Mount a new LCD panel in the reverse order of the above steps (1), (2) and (3).
(4) Mount a new LCD panel in the reverse order of the above steps (1), (2) and (3).
~
Readjust the convergence and focus. Note that the G LCD panel needs no convergence adjustment and has
a small adjustment range in the Z direction.
a small adjustment range in the Z direction.
G-LCD panel
mounting screws
mounting screws
Lock
screws "c"
screws "c"
Lock screws "c"
Lock
screws "b"
screws "b"
FRONT
2
2
2
SIDE VIEW
TOP VIEW
SIDE VIEW
R•B-LCD panel
mounting screws
mounting screws
Lock screws "c"
X
Z
θ
Y
X
Y
θ
Z
R•B adjusting plate
R•B-LCD
G-LCD
~
R-LCD
B-LCD
X
Z
θ
Y
3
G-LCD
G adjusting plate
3
2
21
XG-NV21SE
XG-NV21SM
XG-NV21SA
Adjusting the optical axis of the mirrors (M1, M5 and M6)
The optical axis must be readjusted if an eclipse happens with the R. G or B mirrors. Generally speaking,
this adjustment is needed when any of the internal optical components has been replaced.
this adjustment is needed when any of the internal optical components has been replaced.
Adjustment procedure required when any of the panels has been replaced or the convergence has been
adjusted
(1) Disconnect the flat cables of all the LCD panels.
(2) Let the lamp light up.
(3) To adjust the G mirror, shield the R and B mirrors with shielding plates (You can use a business card or the like to
adjusted
(1) Disconnect the flat cables of all the LCD panels.
(2) Let the lamp light up.
(3) To adjust the G mirror, shield the R and B mirrors with shielding plates (You can use a business card or the like to
block the light).
(4) Loosen the lock screw of the M1 adjust lever.
(5) Looking at the G image on the screen, turn or slide the M1 adjust lever until the eclipse on the screen disappears.
(5) Looking at the G image on the screen, turn or slide the M1 adjust lever until the eclipse on the screen disappears.
Tighten up the screw.
(6) To adjust the R mirror, shield the G and B mirrors and adjust the M5 adjust lever. For the B mirror, shield the R and
G mirrors and adjust the M6 adjust lever.
(Take the same steps (4) and (5) above.)
(Take the same steps (4) and (5) above.)
(7) Remove all the shielding plates to have a white image.
Make sure there is no eclipse.
FRONT
M5
adjust lever
Lock screws
Lock screws
turn
turn
turn
slide
slide
slide
Shielding plate R
M6
adjust lever
Lock screws
Shielding plate B
M1
adjust lever
Shielding plate G
22
XG-NV21SE
XG-NV21SM
XG-NV21SA
ELECTRICAL ADJUSTMENT
Hook up a signal generator, or a DOSV or Mac personal computer to the projector in order to feed the
signals specified in the Adjusting conditions.
signals specified in the Adjusting conditions.
No.
Adjusting point
Adjusting conditions
Adjusting procedure
1
EEPROM
initialization
initialization
1. Turn on the power (make
sure the lamp lights up) and
warm up the unit for 15 min-
utes.
warm up the unit for 15 min-
utes.
»
Make the following settings:
Press S5001 to call up the process mode and ex-
ecute S2 in the SSS menu. Now the system, with the
PC board not included, is initialized. Do not execute
S1 because otherwise the PC board will be initialized.
To adjust the PC board, follow the instruction in "Ad-
justing the PC board". (See page 27)
Press S5001 to call up the process mode and ex-
ecute S2 in the SSS menu. Now the system, with the
PC board not included, is initialized. Do not execute
S1 because otherwise the PC board will be initialized.
To adjust the PC board, follow the instruction in "Ad-
justing the PC board". (See page 27)
2
R drive
1. Make the following choice.
Group : A/D
Subject : GAIN
Make sure the GAIN value
is 163.
Subject : GAIN
Make sure the GAIN value
is 163.
2. Feed the 100% red-only
signal, SVGA (800 x 600)
60Hz, 700mV at PC IN con-
nector.
Group : A/D
Subject : R-D
60Hz, 700mV at PC IN con-
nector.
Group : A/D
Subject : R-D
»
Using the control switches or the remote controller
buttons, adjust the data so that the signal becomes
bit-less (noise).
buttons, adjust the data so that the signal becomes
bit-less (noise).
3
B drive
1. Feed the 100% blue-only
signal, SVGA (800 x 600)
60Hz, 700mV at PC IN con-
nector.
Group : A/D
Subject : B-D
60Hz, 700mV at PC IN con-
nector.
Group : A/D
Subject : B-D
»
Using the control switches or the remote controller
buttons, adjust the data so that the signal becomes
bit-less (noise).
buttons, adjust the data so that the signal becomes
bit-less (noise).
4
G drive
1. Feed the 100% green-only
signal, SVGA (800 x 600)
60Hz, 700mV at PC IN con-
nector.
Group : A/D
Subject : G-D
60Hz, 700mV at PC IN con-
nector.
Group : A/D
Subject : G-D
»
Using the control switches or the remote controller
buttons, adjust the data so that the signal becomes
bit-less (noise).
buttons, adjust the data so that the signal becomes
bit-less (noise).
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