Ic Description; Alignment Instruction; Assembly Adjustments - Daewoo DTQ-20S1SSFV Service Manual

ALIGNMENT INSTRUCTION

2. ASSEMBLY ADJUSTMENTS

1) SCREEN ADJUSTMENT (S2)
Enter the service mode and select service adjustment S2.
You can see the one horizontal line on the screen.
Adjust the Screen Control Volume (located on FBT) so that the horizontal line
onscreen may be disappeared.
Press S2 button to exit in the screen adjustment mode.
2) FOCUS ADJUSTMENT
Turn in a local station and adjust the Focus Control knob (located on FBT) for best
picture details at high light condition.
3) AGC ADJUSTMENT
Adjust the antenna signal level at 60 dBuV
Tune a colour bar pattern.
Find the "AGC" item in service mode.
(it's two way to entering the "AGC" item in service mode)
- Enter the service mode and select service adjustment S5 and select AUTO-AGC.
- Enter the service mode and select service adjustment S3.
Wait until AGC level stabilise to the optimum value.
Alternatively,
Enter the service mode and select service adjustment S5 and select AGC LEVEL.
Use "Vol Up/Dwn" keys to adjust manually to the desired Tuner Take Over Point.
4) GEOMETRIC ADJUSTMENTS (S6)
Select service adjustment S6
You can see the OSD as shown in below.
V.SIZE
V.CENTER
V.SLOPE
V.LINEARITY
S_CORRECT
H.CENTER
H.SIZE
43 H.PARALLEL
42 H-BOW
28 PARABOLA
37 EW TRAPEZ
32 CORNER TOP
45 CORNER BOTTOM
54
SELECT ADJUST
-10-
33
35
17
38
54
46
EXIT