Daewoo DDT-21H9ZDF(21"), Service Manual

Page: 13 / 116

-12-
Service Manual CP-099/FS
3-5-5- The adjustment of horizontal center
- Apply PAL RETMA pattern.
- Go to SERVICE MODE.
- Press H- or H-CENTER- key and "HOR CEN" OSD will be displayed.
- Referring to the both side scales, adjust with H-/H-CNETER- keys so that RETMA pattern may be symmetrical.
3-5-2- The adjustment of vertical size
- Apply PAL RETMA pattern.
- Go to SERVICE MODE.
- Press V-SIZE+ or V-SIZE- key and "VERT SIZE" OSD will be displayed.
- Adjust with V-SIZE+/V-SIZE- keys so that the upper and the lower ’+’ marks of the RETMA pattern may be located at the
boundaries of the screen.
3-5-3- The adjustment of vertical slope
- Apply PAL RETMA pattern.
- Go to SERVICE MODE.
- Press V-SLOPE+ or V-SLOPE- key and "V. LINEAR" OSD will be displayed.
- Referring to the upper side and lower side, adjust with V-SLOPE+/V-SLOPE- keys so that RETMA pattern may
be symmetrical.
- In case of mass production in the factory, keeping the default value is recommended for the adjustment of V-SLOPE.
Default value : -00003
3-5-4- The adjustment of S-correction
- Apply PAL CROSS HATCH pattern.
- Go to SERVICE MODE.
- Press S-CUR+ or S-CUR- key and "S CORRECT" OSD will be displayed.
- Adjust with S-CUR + or S-CUR- keys so that the upper, the lower and the middle size of the CROSS HATCH pattern
may be same size.
- In case of mass production in the factory, keeping the default value is recommended for the adjustment of S-correction.
Default value : -00020