Samsung SP43T7HF1X/BOB Service Manual page 19

Projection tv receiver j54a(p) c2.0 chassis
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1-5 Beam alignment Adjustments
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 :
Mute
4. Set the Beam Alignment Adjustment CY to Zero magnetic field area.
(Creation of CPM Zero Magnet)
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
/
G-FOCUS
(Varying G-Focus Pack)
G-FOCUS
(When VM 2-Pole Adjustment is completed)
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.
S.STD
16. Press the
button on the remote control to return to normal viewing.
Samsung Electronics
buttons on the remote control.)
TV
CORE
Varying the 2-pole of VM
CORE
Varying the 4-pole of VM
(Creation of the 2-pole/4-pole zero magnets)
(Positioning the Core in the Center)
(Adjust until the light around
the core becomes a circle)
Alignment and Adjustments
1-17

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