Gray-Scale Chart And Its Maintenance - Sony HDW-750 Maintenance Manual

9-1. General Information on Electrical Alignment
Setup menu (PAINT menu) :
. 01* SW STATUS
GAMMA
BLACK GAMMA
MATRIX
KNEE
WHITE CLIP
DETAIL
APERTURE
TEST SAW
. 03* BLACK
OUTPUT SELECT
. 06* KNEE
KNEE SATURATION
KNEE SAT LEVEL
. 10* SKIN DETAIL
SKIN DETAIL ALL
Setup menu (MAINTENANCE menu) :
. 14* FUNCTION 3
WHT FILTER INH
COLOR BAR SEL
. 15* GENLOCK
GENLOCK
RETURN VIDEO
9-2
→ ON
→ OFF
→ OFF
→ ON
→ ON
→ ON
→ ON
→ OFF
→ Y
→ ON
→ 0
→ OFF
→ OFF
→ 100%
→ ON
→ OFF

9-1-4. Gray-Scale Chart and Its Maintenance

Use of a reflective-type gray-scale chart (with reflectance
of 89.9%) is recommended for the PA Gain adjustment. If
a reflective-type gray-scale chart is not available, use a
transparent-type gray-scale chart with a well-maintained
pattern box.
Calibrate illuminance (or luminance) on the surface of the
gray-scale chart to the specified value as follows. Also,
calibrate the color temperature to exactly 3200K by
adjusting the illumination.
Reflective-Type Gray-Scale Chart (4 : 3)
Availability of reflective-type gray-scale chart
The reflective-type gray-scale chart (4 : 3) is commercially
available.
Name : Reflective-type gray-scale chart in
wooden case (GS-3 of Murakami Color
Research Lab. Inc. or equivalent)
Available from : Murakami Color Research Lab. Inc.
Address : 3-11-3 Kachidoki, Chuo-ku,
TEL :
FAX :
Notes on handling
. Do not touch the chart surface with bare hands.
. Do not rub or stain the chart surface.
. Do not expose or use the chart under direct sunlight for a
long time.
. Do not leave or store the chart in a place that is very
humid or contains toxic gas.
. Do not place anything on top of the chart surface.
. When a chart is stored for a long time without using it,
open the wooden case and leave the chart to dry for 30
minutes or 1 hour once or twice every month.
Guideline of replacing the chart when used as the
reference chart
The reflective characteristics of the reflective-type gray-
scale chart can easily deteriorate over time. As a guideline,
the chart should be replaced every 2 years, but the replace-
ment interval depends on the storage conditions of the
chart.
Tokyo 104-0054
(Japan) 03-3532-3011
(Japan) 03-3532-2056
HDW-750/750CE V1