Samsung SP43T7HF1X/BOB, Service Manual

Page: 19 / 121

Alignment and Adjustments
Samsung Electronics 1-17
1. Select the “DYNAMIC” video mode.
2. Warm up the set at least for 10 minutes.
3. Enter the Convergence mode by pressing the remote control buttons in the following sequence :
4. Set the Beam Alignment Adjustment CY to Zero magnetic field area.
5. Check the squarewave at the point where the focus is misaligned.
6. Press the button on the remote control during 3~5 sec and vibrating dot-pattern appears.
7. Adjust the Focus-pack VR for defocusing.
8. Mute the other patterns (R/B) other than G-PATTERN.
(Use / buttons on the remote control.)
9. Adjust the 2, 4 polarities of VM-COIL as shown in figure below.
10. Adjust the G-Focus until any light around the core disappears.
11. Adjust G-Focus so that the surrounding flash can disappear from the spot.
12. After G-Focus adjustments are complete, adjust R-Focus as above procedures.
13. The B-CRT adjustments can be omitted because the variance of beam focus is small.
(Only Vm-coil is mounted.)
14. Adjust the Focus-pack VR for fine focusing.
15. Press the button on the remote control, and the mode changes to the Convergence Adjustment
mode.
16. Press the button on the remote control to return to normal viewing.
(Creation of CPM Zero Magnet)
(Creation of the 2-pole/4-pole zero magnets)
G-FOCUS CORE
(Varying G-Focus Pack)
Varying the 2-pole of VM
(Positioning the Core in the Center)
Varying the 4-pole of VM
CORE
G-FOCUS
(When VM 2-Pole Adjustment is completed)
(Adjust until the light around
the core becomes a circle)
1-5 Beam alignment Adjustments
Mute
TV
S.STD