Table of Contents
Advertisement
neck and DY so that dynamic convergence is best.
4. Confirm that left upper side line is straight. / When left upper side
line isn't straight, put magnet on DY and adjust the left upper side
line to straight.
5.10. CUT OFF
Preparation
1. Receive a colour bar signal with colour "OFF", and operate the TV
set more than 15 minutes.
2. Set the picture menu to "DYNAMIC NORMAL" and the AI to off.
3. Connect an oscilloscope to TPL7 with DC mode.
4. Set the TV set to Service Mode 1.
5. Screen VR : Min.
6. Set the data level of SUB BRIGHT, R, G, B-CUTOFF and R, G, B-
DRIVE to the table values.
Display
R High (R-CUT OFF)
G High (G-CUT OFF)
B High (B-CUT OFF)
R Low (R-DRIVE)
G Low (G-DRIVE)
B Low (B-DRIVE)
SUB BRIGHT
Adjustment
1. Select G-CUTOFF adjustment mode and collapse vertical scan.
2. Adjust G-CUTOFF control to become the DC=0V to video level at
180V as shown below:
3. Slowly turn the screen control clockwise until a green colour
horizontal line appears on the picture tube. This is the setting
point for the screen control. / Note that do not adjust the G-
CUTOFF setting in the following procedure.
Data Level
128
128
128
175
175
175
128
Advertisement
Table of Contents
