ELECTRICAL ADJUSTMENTS
2-6: WHITE BALANCE2-9: VERTICAL SIZE
NOTE: Adjust after performing CUT OFF adjustment.1.Receive the monoscope pattern from the Pattern
Generator.
1.Place the set with Aging Test for more than 10 minutes.
2.Receive the gray scale pattern from the Pattern2.Using the remote control, set the brightness and
contrast to normal position.
Generator.3.Activate the adjustment mode display of Fig. 1-1 and
3.Using the remote control, set the brightness and
contrast to normal position.press the channel button (11) on the remote control to
select "V SIZE (50)".
4.Activate the adjustment mode display of Fig. 1-1 and4.Adjust by using the VOL. +/- button on the remote
press the channel button (03) on the remote control to
select "R DRIVE".control so that the Up/Down OVER SCAN Quantity
becomes equal to the Right/Left OVER SCAN Quantity.
5.Press the Page UP/DOWN button on the remote control5.Receive a broadcast and check if the picture is normal.
to select the "R DRIVE", "G DRIVE", "M R CUTOFF" or
"M G CUTOFF".6.Receive the monoscope pattern of NTSC. (Audio Video
Input)
6.Adjust the VOL. +/- button on the remote control to
whiten the R DRIVE, G DRIVE, M R CUT OFF, and M G7.Using the remote control, set the brightness and
contrast to normal position.
CUT OFF at each step tone sections equally.8.Activate the adjustment mode display of Fig. 1-1 and
7.Perform the above adjustments 5 and 6 until the white
color is looked like a white.press the channel button (12) on the remote control to
select "V SIZE (60)".
9.Adjust by using the VOL. +/- button on the remote
2-7: FOCUS
control so that the Up/Down OVER SCAN Quantity
1. Receive a 70dB monoscope pattern.becomes equal to the Right/Left OVER SCAN Quantity.
2. Turn the Focus Volume fully counterclockwise once.
3. Adjust the Focus Volume until picture is distinct.2-10: VERTICAL POSITION/VERTICAL LINEARITY
2-8: HORIZONTAL POSITION1.Receive the monoscope pattern from the Pattern
Generator.
1.Receive the monoscope pattern from the Pattern2.Using the remote control, set the brightness and
Generator.contrast to normal position.
2.Using the remote control, set the brightness and3.Adjust the VR401 until the horizontal line becomes fit to
contrast to normal position.the notch of the shadow mask.
3.Activate the adjustment mode display of Fig. 1-1 and4.Adjust the VR420 until the SHIFT quantity of the OVER
press the channel button (08) on the remote control toSCAN on upside and downside becomes minimum.
select "H POSI (50)".
4.Press the VOL. +/- button on the remote control until2-11: BRIGHT CENT
the SHIFT quantity of the OVER SCAN on right and left
1.Receive the PAL black pattern*. (RF Input)
becomes minimum.2.Using the remote control, set the brightness and
5.Receive the monoscope pattern of NTSC. (Audio Video
Input)contrast to normal position.
3.Place the set with Aging Test for more than 15 minutes.
6.Using the remote control, set the brightness and4.Activate the adjustment mode display of Fig. 1-1 and
contrast to normal position.
7.Activate the adjustment mode display of Fig. 1-1 andpress the channel button (17) on the remote control to
select "BRIGHT CENT".
press the channel button (39) on the remote control to
select "H POSI (60)".5.Press the VOL. +/- button on the remote control until
8.Press the VOL. +/- button on the remote control untilthe screen begin to shine.
6Receive the PAL black pattern*. (Audio Video Input)
the SHIFT quantity of the OVER SCAN on right and left
becomes minimum.7.Set to the AV mode. Then perform the above
adjustments 2~5.
*The Black Pattern means the whole black raster signal.
Select the "RASTER" of the pattern generator, set to
the OFF position for each R, G and B.
2-12: CONTRAST CENT
1.Activate the adjustment mode display of Fig. 1-1 and
press the channel button (22) on the remote control to
select "CONTRAST CENT".
2.Press the VOL. +/- button on the remote control until
the contrast step No. becomes "35".
3.Receive a broadcast and check if the picture is normal.
4.Set to the AV mode. Then perform the above
adjustments 1~3.
D-2 |
ACEC
TOSHIBA
