ELECTRICAL ADJUSTMENTS
2-6: WHITE BALANCE2-10: VERTICAL SIZE
NOTE: Adjust after performing CUT OFF adjustment.NOTE: Adjust after performing adjustments in section 2-8.
1.Place the set with Aging Test for more than 15 minutes.1. Receive the monoscope pattern from the Pattern
2.Receive the gray scale pattern from the PatternGenerator.
Generator.2. Using the remote control, set the brightness and contrast
3.Using the remote control, set the brightness andto normal position.
contrast to normal position.3. Activate the adjustment mode display of Fig. 1-1 and
4.Activate the adjustment mode display of Fig. 1-1 andpress the channel button (11) on the remote control to
press the channel button (03) on the remote control toselect "V SIZE (50)".
select "R DRIVE".4. Press the the VOL. +/- button on the remote control until
5.Press the Page UP/DOWN button on the remote controlthe SHIFT quantity of the OVER SCAN on upside and
to select the "R DRIVE", "G DRIVE", "M R CUTOFF" ordownside becomes 8 ? 2%.
"M G CUTOFF".5. Receive the monoscope pattern of NTSC.
6.Adjust the VOL. +/- button on the remote control to6. Using the remote control, set the brightness and contrast
whiten the R DRIVE, G DRIVE, M R CUT OFF, and M Gto normal position.
CUT OFF at each step tone sections equally.7. Activate the adjustment mode display of Fig. 1-1 and
7.Perform the above adjustments 5 and 6 until the whitepress the channel button (12) on the remote control to
color is looked like a white.select "V SIZE (60)".
8. Press the the VOL. +/- button on the remote control until
2-7: FOCUSthe SHIFT quantity of the OVER SCAN on upside and
downside becomes 10 ? 2%.
1. Receive an over 70dB monoscope pattern.
2. Turn the Focus Volume fully counterclockwise once.
2-11: BRIGHT CENT
3. Adjust the Focus Volume until picture is distinct.
1.Receive the PAL black pattern*. (RF Input)
2-8: HORIZONTAL POSITION2.Using the remote control, set the brightness and
contrast to normal position.
1.Receive the monoscope pattern from the Pattern
3.Place the set with Aging Test for more than 15 minutes.
Generator.
4.Activate the adjustment mode display of Fig. 1-1 and
2.Using the remote control, set the brightness and
press the channel button (17) on the remote control to
contrast to normal position.
select "BRIGHT CENT".
3.Activate the adjustment mode display of Fig. 1-1 and
5.Press the VOL. +/- button on the remote control until
press the channel button (08) on the remote control to
the screen begin to shine.
select "H POSI (50)".
6Receive the PAL black pattern*. (Audio Video Input)
4.Press the VOL. +/- button on the remote control until
7.Set to the AV mode. Then perform the above
the SHIFT quantity of the OVER SCAN on right and left
adjustments 2~5.
becomes minimum.
5.Receive the monoscope pattern of NTSC.*The Black Pattern means the whole black raster signal.
6. Using the remote control, set the brightness and Select the "RASTER" of the pattern generator, set to
contrast to normal position.the OFF position for each R, G and B.
7.Activate the adjustment mode display of Fig. 1-1 and
press the channel button (39) on the remote control to 2-12: CONTRAST CENT
select "H POSI (60)".
1.Receive the PAL color bar pattern.
8.Press the VOL. +/- button on the remote control until
2.Activate the adjustment mode display of Fig. 1-1 and
the SHIFT quantity of the OVER SCAN on right and left
press the channel button (22) on the remote control to
becomes minimum.
select "CONTRAST CENT".
3.Press the VOL. +/- button on on the remote control until
2-9: VERTICAL POSITION, VERTICAL LINEARITYthe contrast step No. becomes "35".
Receive a broadcast and check if the picture is normal.
1. Receive the monoscope pattern from the pattern
4.Set to the AV mode. Then perform the above
Generator.
adjustments 1~3.
2. Using the remote control, set the brightness and
contrast to normal position.
3. Adjust the VR401 until the horizontal line becomes fit to
the notch of the shadow mask.
4. Adjust the VR420 until the SHIFT quantity of the OVER
SCAN on upside and downside becomes minimum.
D-2 |
ACEC
