Vertical Slope Adjustment; Horizontal Phase Adjustment - Hitachi C21-FL21F Service Manual

VERTICAL SLOPE ADJUSTMENT(Must be done before V. Center and V. Size Adjustments)
PREPARATION
1.
Turns on the TV set & heat run about 5 min.
2.
Receive the circular pattern signal (PLL)
3.
Set all picture settings as below.
i.e.
Contrast
Brightness
4. AC 230 + 1V

HORIZONTAL PHASE ADJUSTMENT

PREPARATION
1.
Receive the circular pattern signal.
: Max
: Center
1.
Select the IIC control address No. 30.
2.
Press or
that the button half of the picture is blanked.
i.e.
3. Select the IIC Control address No. 59.
4.
Adjust the vertical slope until the horizontal center
line is just at the position where the blanking starts.
5.
Select the IIC Control address No. 30.
6.
Press or
that picture appears again.
1.
Select the IIC control address No. 06.
2.
Adjust the picture center to meet the CRT geometrical
center.
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PROCEDURES
key on remote con. handset so
Botton half of
picture blanked
key on remote con. handset so
PROCEDURES