Daewoo DTH-20D5FSN Service Manual page 8

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) RF AGC DELAY ADJUSTMENT (S5)
• Receive a good local channel.
• Enter the service mode and select service adjustment S5.
• You can see the OSD as shown in below.
• Select RFAGCD item, press the volume up or down button until noise or beat in picture disappears.
• Press the DISPLAY button to memorize the data.
4) GEOMETRIC ADJUSTMENTS (S6)
• Enter the service mode and select service adjustment S7.
• Whenever you select the "S7" using the volume up or down button, the screen is changing like this.
NORMAL
• Using the volume up or down button, select internal cross pattern.
• Select service adjustment S6.
• You can see the OSD as shown in below.
4-1. Horizontal Position Adjustment
• Select H.PHASE item, adjust H.PHASE data value to obtain proper horizontal centering of the
internal cross pattern at the left and right of the screen.
4-2. Vertical Position Adjustment
• Select V.POSI item, adjust V.POSI data value to center the raster properly on the screen.
BLACK WHITE100 WHITE60 CROSS
7
ALIGNMENT INSTRUCTIONS