Samsung HCR4755WX/XAA Service Manual page 16

Alignment & Adjustment
2-5 Beam Alignment Adjustments
1. Select the "STANDARD" 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.
MUTE
4. Set the Beam Alignment Adjustment CY to Zero magnetic field area.
(Creation of CPM Zero Magnet)
5. Press the 7- digit button for a while, on the remote control, and a vibrating dot-pattern appears.
6. Adjust the Focus-pack VR for defocusing.
G-FOCUS
G-FOCUS
7. Mute the other patterns (R/B) other than G-PATTERN. (Use "+100" / "PRE-CH" Key on the remote control.)
8. Adjust the 2, 4 polarities of VM-COIL as shown in figure below.
9. Adjust the G-Focus until any light around the core disappears.
G-FOCUS
G-FOCUS
10. Adjust G-Focus so that the surrounding flash can disappear from the spot.
G-FOCUS G-FOCUS
(Varying G-Focus Pack)
G-FOCUS G-FOCUS
(When VM 2-Pole Adjustment is completed)
11. After G-Focus adjustments are complete, adjust R-Focus as above procedures.
12. The B-CRT adjustments can be omitted because the variance of beam focus is small. (Only Vm-coil is mounted.)
13. Adjust the Focus-pack VR for fine focusing.
14. Press the 7- digit button for a while, on the remote control, and the mode changes to the Convergence Adjustment mode.
15. Press the "S.MODE" Key on the remote control to return to normal viewing.
2-12
(Creation of the 2-pole/4-pole zero magnets)
CORE
CORE
CORE
CORE
CORE CORE
Varying the 2-pole of
CORE CORE
Varying the 4-pole of VM
(Positioning the Core in the Center)
(Adjust until the light around the core becomes a c
Samsung Electronics