Other Adjustments - Samsung HCH551WX Service Manual

3-4 Other Adjustments

3-4-1 Picture Size Adjustment
PRECAUTION
1. Input a lion head/crosshatch pattern.
2. Select the ÒSTANDARDÓ video mode.
3. Warm up the TV for at least 15 minutes.
ADJUSTMENT
1. Turn on the TV.
2. Make sure that the focus adjustments are
completed.
3. Cover the RED and BLUE lenses.
4. Enter the Convergence Adjustment Mode by
pressing the remote- control keys in the
following sequence: Factory - Mute - Display
5. Select the Picture Size key for no convergence
correction data, and the Convergence Exit key
(Sound Select key) for the main signal.
6. Enter the Factory Mode by pressing the
remote-control keys in the following sequence:
Display - Factory
7. Adjust the GREEN lens (Use a center magnet)
8. Select the Picture Height (52) by pressing the
Channel and Volume keys (Up/Down), and
enter the Picture Width Mode by pressing the
Tridimensional Sound key, and then adjust so
that the top and bottom margins become 10
(Use the Volume +/- keys.)
9. Select the V Linear (53) by pressing the
Channel and Volume keys (Up/Down), and
press the Tridimensional Sound key, and then
adjust so that the top and bottom margins are
equal. (Use the Volume +/- keys.) If necessary,
readjust the top and bottom margins using a
center magnet.
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10. Select the H Width (57) by pressing the
Channel and Volume keys (Up/Down), and
press the Tridimensional Sound key, and then
adjust so that the left and right margins
become 12 (Use the Volume +/- keys.)
11. Select the EW Parabola (58) by pressing the
Channel and Volume keys (Up/Down), and
press the Tridimensional Sound key, and input
a crosshatch pattern by pressing the Channel
Up/Down keys, and then adjust so that the
left and right lines are linear (Use the Volume
+/- keys.)
12. If necessary, make the adjustments of the other
functions.
13. Enter the main lion pattern by pressing the
Convergence I-Data key, and adjust so that
RED,BLUE is positioned in the center of the
screen.
14. Check the focus of GREEN,RED,BLUE.
15. After the adjustments are completed, do the
convergence adjustments.
3-4-2 Screen Adjustment
1. Warm up the TV for at least 30 minutes.
2. Turn to the Video Mode (No Signal) using a
remote-control.
3. Connect an oscilloscope to RK,GK,BK.
4. Adjust the VR (VR501, VR531, VR561) 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.)
Alignment and Adjustments
3-7