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Panasonic C1381 Service Manual page 7

Color computer display

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(B)
Rectangularness & Parallelogram Distortion
Bendy 0.118 in. (3 mm)
Dosis 0.118 in. (3 mm)
Input signal is a crosshatch pattern.
Figure 7 Parallelogram Distortion
(C)
Linearity
Figure 8 Linearity
X (MAX.) — X (MIN,)
HORIZONTAL
LINEARITY =
—-—-—-——--__
x 100 (%) S$ 7.5%
X (MAX,)
+ X (MIN,)
Y (MAX,) — Y (MIN,)
VERTICAL
LINEARITY
=
—————_—__
x 100 (%) S$ 7.5%
Y (MAX,)
+ Y (MIN.)
Maximum and minimum value should not be adjacent to each other.
X (MAX.)
= Maximum distance between vertical lines from X1 to Xm.
X (MIN.)
= Minimum distance between vertical lines from X1 to Xm,
Y (MAX,)
= Maximum distance between horizontal lines from Y1 to Yn.
Y (MIN.)
= Minimum distance between horizontal lines from Y1 to Yn.
(D)
Rotation
Horizontal tine of the image shall be within
the shaded area.
Edge of
"image
Horizontat
center
of CRT
a = 0.079 in. (2 mm)
Input signal is a crosshatch pattern.
Figure 9 Rotation
(E)
Convergence
9.65 in.
(245 mm)
7.2 in.
(183 mm)
area A S 0.0118 in. (0.3 mm)
areaB S 0.0236 in. (0.6 mm)
Figure 10
Mis-Convergence
Note:
Should be measured under the following conditions.
1) Terrestrial magnetism without horizontal field
(O Gauss).
With vertical field of 0.2 Gauss.
2) At room temperature
3) Input signal:
Crosshatch R, G, B mixed colors.
6-3. Image Size Variation
Notes and test
conditions
Image size variation from
the normal image size.
Within + 0.118 in.(+ 3m)
(Horizontal and Vertical)
Rotation of
brightness control
AC line voltage
varied 220 to 240
volts
Within + 0.157 int 4 mm)
(Horizontal and Vertical)
External ambient
temperature
3
varied 20 + 20 C
Within + 0.157 in.(+ 4mm)
{Horizontal and Vertical)
Testing condition is normal condition.
7, OVERALL
PERFORMANCE
7-1, Resolution
Horizontal .....
... 1024 Pixels
Vertical 0.
768 Pixels
7-2. insulation
More than 100 MQ
Between AC line and chassis.
7-3. Jitter
Less than 1 dot
Invisible at a distance of 18 in. (45.7 cm) from CRT
surface
8. CONNECTOR
8-1. Signal Connector
15 pin mini D-SUB type connector (interface cable)
et
*
oc:
i,

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