Screen Adjustment; White Balance Adjustment; Sub-Brightness Adjustment; Static Focus Adjustment - Samsung SP43R1HL1X/XEC Service Manual

Alignment and Adjustments
2-5 Other Adjustments

2-5-1 Screen Adjustment

1. Warm up the TV for at least 30 minutes.
2. Select the "DYNAMIC" Video mode.
3. Trun to the Video Mode(No Signal) using a remote-
control.
4. Connect an oscilloscope to RK, GK, BK.
5. Adjust the VR (Focus Pack) screen so that RK, GK, BK
pulse is 20Vp-p each. (Turn the R,G,B VR screen fully
counterclockwise in the area of each flyback line.)

2-5-2 White Balance Adjustment

1. Select the "DYNAMIC" video mode.
2. Input 100% white pattern.
3. In the stand-by mode, press the remote-control keys in
the following sequence:
Info → Menu → Mute → Power ON
4. Warm up the TV for at least 30 minutes.
5. Input a 10-step signal.
6. R-cut off, B-cut off, and off by pressing the Direction
keys.
7. Adjust the low light with viewing the dark side of the
screen.
8. Select R-drive, and B-drive by pressing Direction
keys.
9. Adjust the high light with viewing the light side of the
screen.
10. If necessary, redo adjustments 6~9.
11. Press the Menu key to exit.

2-5-3 Sub-Brightness Adjustment

1. Input a sub-brightness adjustment signal.
(TOSHIBA PATTERN)
2. In the stand-by mode, press the remote-control keys in
the following sequence :
2-30
Displsy → Menu → Mute → Power ON
3. Select Sub-Bright by pressing the Deletion
Keys.
4. Adjust so that the 63 step on the right side of the screen
is not seen (Use the
5. Press the Menu key to exit.

2-5-4 Static Focus Adjustment

PRECAUTION
1. Select the "DYNAMIC" video mode.
2. Input a crosshatch pattern.
3. Cover the lenses that are not being adjusted.
4. Connect a convergence jig and read data.
5. Adjust the lens for best focus.
(See Fig, 4-1)
STATIC FOCUS (CONTINUED)
Vary the focus pack VR (Red, Blue) on the front cabinet.
Adjust the TV for best possible focus around the center
of the crosshatch pattern, without losing overall screen
balance.
Figure Crosshatch Pattern
Examine these points together.
Fig. 4-1 Crosshatch Pattern.
Samsung Electronics