Sampo SME-27FDL5, Service Manual

Page: 35 / 95

SPECIFICATION VER1.0
5-4
2.4.7 Linearity
(Test with cross-hatch pattern.
H: 17 Line, V: 13 Line)
2.4.8 Distortions requirement
a. Total Geometric distortion
(See FIG. 1)
TOP & BOTTOM
LEFT & RIGHT
≦
≦ ≦
≦
8 mm
≦
≦ ≦
≦
8 mm
b. Barrel (See FIG. 2) TOP & BOTTOM
LEFT & RIGHT
≦
≦ ≦
≦
6 mm
≦
≦ ≦
≦
6 mm
2.4.9 Tilt (Raster Rotation) Less than
± ±± ±
4 mm
(The tilt is being Compared between the horizontal center
line of the image with respect to that of the bezel.)
2.4.10 Misconvergence
(See FIG. 5)
Zone A: 1.0 mm ( 465 mm )
Zone B: 1.5 mm (Within the image area of 620 mm x 465
mm except zone A.)
Zone C: 1.8 mm (Except zone A and B.)
2.4.11 Focus
(with mode 1
→
→ →
→
mode 9) (Test
with H character pattern.)
The individual dot and line of characters on the screen
should be clearly distinguishable. (Setting the Cut-off
raster brightness level at H pattern.)
2.4.12 CRT quality The screen & faceplate blemishes requirement is defined
based on CRT specification.
2.4.13 Color temperature
(PATTERN=ALL WHITE
PATTERN.)
X : 0.270
±
±±
±
0.030
Y : 0.270
±
±±
±
0.030
2.4.14 Color tracking
(Test full white pattern.)
X : X
0
± ±± ±
0.030
Y : Y
0
± ±± ±
0.030
brightness=128,change contrast control range from 4.5 FL
to max
2.4.15 Internal service controls :
HV-ADJUST (31
±
±±
±
1KV)
H-Center
DC B+ ADJUST (210
±
±±
±
1V)
FBT SCREEN KNOB FBT FOCUS
X (max.)
X (max.) - X (min.)
( X100%)
≦
≦ ≦
≦
15%
Less than 15% for both H & V