Sylvania LD320SS8 A Service Manual page 24

1. Purity Check Mode
This mode cycles through full-screen displays of red,
green, blue, and white to check for non-active pixels.
1. Enter the Service mode.
2. Each time pressing [7] button on the service
remote control unit, the display changes as
follows.
Purity Check Mode
White mode
Red mode
Green mode
Blue mode
Note:
When entering this mode, the default setting is White mode.
[7] button
[7] button
[7] button
[7] button
2. VCOM Adjustment
*This adjustment is required when reparing T-CON
CBA.
Test Point
Screen
M. EQ.
Color analyzer
L = 3 cm
Note: Use the service remote control unit
1. Operate the unit for more than 20 minutes.
2. Set the color analyzer and bring the optical
receptor to the center on the LCD-Panel surface
after zero point calibration as shown above.
Note: The optical receptor must be set
perpendicularly to the LCD Panel surface.
3. Enter the Service mode.
4. Press [3] button on the remote control unit.
5. Press [CH. o / p] buttons on the remote control
unit so that the color analyzer value becomes
minimum.
6-2
Adj. Point
[CH. o/p]
buttons
Spec.
See below
Figure
It carries out in a darkroom.
Perpendicularity
Color Analyzer
A74F0EA