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Convergence Adjustment - LG PF-43A20 Service Manual

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4. Blue lens Adjustment
1) Turn the lens until the chromatic aberration changed
purple to green which of 3.5 Cross-Hatch part from
picture's center toward left.
2) Adjust the chromatic aberration become center of purple
and green.
3) Turn the VR to clockwise so that the thickness of B-
bright line thicker than G-bright line as much as times of
1.3 ¡ 0.2 after control method as same of G-focus by B-
focus VR of focus pack.
4) Remove lens cover after adjusting all lens (R.G.B) and
receive cross hatch signal, observing condition of whole
screen's condition.
¡ Convergence Adjustment
1. Preliminary steps
1) This adjustment should be performed after raster slant,
raster position, horizontal and vertical adjustment.
2) This adjustment should be performed after warming up
30 minutes.
3) Tune the TV set cross-hatch pattern.
4) Adjust for both PAL(SECAM) and NTSC system.
5) Use the jig screen with the cross hatch pattern for each
mode.
2. Convergence Key(Button)
1) Convergence Mode :
2) Phase Adjustment : 95
3) Pattern Position Adjustment : 94
4) Phase/Pattern Position Save : 92
5) Cursor Color Selection : TV/AV
6) Cursor Movement/Adjustment Selection : OK
7) Adjustment DATA Save : 91
¡ Mode Adjustment
1. Preliminary steps
Press the buttons SVC &
adjustment to get into the convergence adjustment mode.
2. Phase Adjustment
1) Press the buttons 9 & 5 to get into the phase adjustment
mode.
The second mark
M
M
of Remote Controller for
The horizontal center-line
2) Horizontal Phase Adjustment.
Press the volume ¢‚/¢" button and move the convex part
to the middle of TV screen.
3) Vertical Phase Adjustment
Press the channel ¡ª /¡ button and move the convex part
to the middle of TV screen.
Press the OK button to escape from the adjustment.
3. Pattern Position Adjustment
Press the buttons 9 & 4 to get into the pattern movement
mode.
Press the volume ¢‚/¢"button & channel ¡ª/¡ button and
move the cursor to the middle of TV screen.
4. Phase/Pattern Position Save
Press buttons 9 & 2 and OK.
5. Green Convergence Adjustment
1) Press TV/AV button and select the green cursor.
2) Press the volume ¢‚/¢" button & channel ¡ª/¡ button and
adjust the green pattern & screen jig pattern.
3) If necessary, cover the R lens & B lens.
¡ Cursor flickers in the adjustment mode and stops in the
cursor position movement mode.
Use OK button to toggle the cursor position movement
mode and adjustment mode.
Adjust and move outskirts from center.
8
6
7
5
6
4
7
5
8
6
Number is the order for adjustment position.
Adjust anyone first for the same number.
- 17 -
The horizontal center
The horizontal center
5
4
5
6
3
2
3
5
2
1
2
4
3
2
3
5
5
4
5
6
The vertical
center
The vertical
center
8
7
6
7
8

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