AV-4300
AV-5000
2.10 Beam Shape Adjustment2.12 Blue Defocus Adjustment
Adjustment PreparationAdjustment Preparation
1. The beam alignment should have been competed.1. Optical and electrical focus adjustment should have been
2. The raster inclination, centering, horizontal / verticalcompleted.
amplitude and optical focus adjustments should have been2. The convergence adjustment should have been completed.
completed.3. Set Video conditions to factory reset
3. Set video conditions to factory reset.Adjustment Procedure
4. Input the dot signal.1. Input cross-hatch signal shown below to VIDEO or RF
Adjustment Procedureinput.
1. Green PRT beam shape adjustment, Short -circuit 2p sub-2. Turn the B Focus VR (Focus Pack) fully clockwise.
mini connectors on Red and Blue CPT P.W.B. s to project3. After the adjustment is completed, if blue exceed the
only the Green beam.specification, turn and adjust focus so that the sticking out
2. Turn the green static focus fully clockwise (blooming).part of blue satisfies the specification.
3. Make the dot at the screen center a true circle using the 4-
pole magnet as shown below.
4. Also adjust the Red and Blue PRT beam shapes accordingSTICKING OUT OF BLUE
to the steps (1) to (3).
5. After the adjustment has been completed, return R, G and
2
B static VRs to the Just Focus Point.UNEVENNESS SPECIFICATION :????1cd/m
PRT SURFACE SIDE
Defocus sticking out specification
Screen sizeBlue sticking out
50?1.0mm
43?1.0mm
Conditions :
User controls are set to the initial set positions (for shipment).
Measuring point Screen center.
Cautions :
TRUE CIRCLE SPECIFICATION
" Correct the brightness gauge and amplitude of the all white
signal periodically. The aperture angle of the Brightness
o
gauge 1
" Use a cross-hatch pattern to check.
TRUE CIRCLE DEGREE
a/b SPECIFICATION : 0.9-1.1
2.11 Static Focus Adjustment
Adjustment Preparation
1. The raster inclination, centering, horizontal / vertical
amplitude and optical / electrical focus beam alignment
should have been completed.
2. Set video conditions to factory reset.
3. Receive the cross-hatch pattern signal.
4. Apply covers to the lenses of colors other than the color to
be adjusted and project a single color.
Adjustment Procedure
1. Red (R), Green (G) and Blue (B) static focus adjustment.
Vary the static focus VR (focus pack UFPK) and make the
center of the cross-hatch pattern clearest.
2. Observe the corners of the picture and check that the focus
does not conspicuously worse.
OBSERVING POINTS OF THE CORNER OF THE PICTURE
OBSERVING POINTS
28No. 51876 |
ACEC
