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Geometry adjustments
Horizontal Phase (H-PH)
Horizontal Amplitude (H-AM)
Vertical Amplitude (V-AM)
Vertical SHift/centering (V-SH)
East/West Parabola (EW-P)
East/West Upper Corner (EWUC)
East/West Lower Corner (EWLC)
East/West Trapezium (EW-T)
Horizontal PArallelogram (H-PA)
Horizontal BOW (BOW)
Geometry adjustments in
format 2 (16:9)
Horizontal Amplitude (H-AM)
Vertical Amplitude (V-AM)
Geometry adjustments have to be done in format 1 (4:3) and format 2 (16:9).
Some of the adjustments are fixed and should not be adjusted:
Vertical Slope (V-SL)
Vertical S-Correction (V-SC)
Horizontal sensitivity (EHT)
The adjustments must be done first in format 1 (4:3).
- Enter Service Mode and select the MONITOR line.
- Select the PICTURE ADJUSTMENTS line.
- Select the BRILLIANCE line and set the brilliance to max. (62).
Then press GO.
- Select the GEOMETRY ADJUSTMENTS line.
- Select the BOW (Horizontal BOW) line and set it to 8.
- Select the H-AM (Horizontal AMplitude) line and adjust until the
phosphor edge is visible at both sides of the picture. Select the H-CT
(Horizontal CenTering) line and adjust to one of the three positions
that gives the best centering of the picture.
Select the H-AM line and adjust to correct picture width. Then press GO
m
and
to select the PICTURE ADJUSTMENTS line.
Select the BRILLIANCE line and set the value to the same as before the
adjustment. Then press GO.
- Select the GEOMETRY ADJUSTMENTS line.
- Adjust H-PH to the correct centering of the picture.
- Adjust H-AM to the correct width of the picture.
- Adjust V-AM so that the picture fits at the top and bottom.
- Adjust V-SH until the centre of the picture is at the centre of the screen.
- Adjust EW-P to the correct geometry at the sides. The middle part of
the vertical lines must be as straight as possible.
- Adjust EWUC to the correct geometry at the upper corners.
- Adjust EWLC to the correct geometry at the lower corners.
- Adjust EW-T to the correct geometry.
- Adjust H-PA to the correct geometry.
- Adjust BOW until the vertical lines at both sides of the picture are
straight.
It may be necessary to repeat some of the adjustments.
- Press GO to store the adjustments.
Exit Service Mode.
Only the adjustments mentioned has to be done.
- Select the TV SETUP menu.
- Select the PICTURE FORMAT line in the TV SETUP menu.
- Enter Service Mode and select the MONITOR line.
- Select the GEOMETRY ADJUSTMENTS line.
When selecting an adjustment item the picture must change to 16:9.
- Adjust H-AM to the correct width of the picture.
- Adjust V-AM so that the picture fits at the top and bottom, there must
be approx 10cm. from the bottom of the circle to the bottom of the
visible screen.
Adjustments, English
Must always be set to 25
Must always be set to 20
Must always be set to 38
5-3
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