Toshiba 15V11F Servicehandleiding - Pagina 15

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2-6: WHITE BALANCE
NOTE: Adjust after performing CUT OFF adjustment.
1.
Place the set with Aging Test for more than 10 minutes.
2.
Receive the gray scale pattern from the Pattern
Generator.
3.
Using the remote control, set the brightness and
contrast to normal position.
4.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (03) on the remote control to
select "R DRIVE".
5.
Press the Page UP/DOWN button on the remote control
to select the "R DRIVE", "G DRIVE", "M R CUTOFF" or
"M G CUTOFF".
6.
Adjust the VOL. +/- button on the remote control to
whiten the R DRIVE, G DRIVE, M R CUT OFF, and M G
CUT OFF at each step tone sections equally.
7.
Perform the above adjustments 5 and 6 until the white
color is looked like a white.
2-7: FOCUS
1.
Receive a 70dB monoscope pattern.
2.
Turn the Focus Volume fully counterclockwise once.
3.
Adjust the Focus Volume until picture is distinct.
2-8: HORIZONTAL POSITION
1.
Receive the monoscope pattern from the Pattern
Generator.
2.
Using the remote control, set the brightness and
contrast to normal position.
3.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (08) on the remote control to
select "H POSI (50)".
4.
Press the VOL. +/- button on the remote control until
the SHIFT quantity of the OVER SCAN on right and left
becomes minimum.
5.
Receive the monoscope pattern of NTSC. (Audio Video
Input)
6.
Using the remote control, set the brightness and
contrast to normal position.
7.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (39) on the remote control to
select "H POSI (60)".
8.
Press the VOL. +/- button on the remote control until
the SHIFT quantity of the OVER SCAN on right and left
becomes minimum.
2-9: VERTICAL POSITION, VERTICAL LINEARITY
1.
Receive the monoscope pattern from the pattern
Generator.
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.
ELECTRICAL ADJUSTMENTS
D-2
2-10: VERTICAL SIZE
1.
Receive the monoscope pattern from the Pattern
Generator.
2.
Using the remote control, set the brightness and
contrast to normal position.
3.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (11) on the remote control to
select "V SIZE (50)".
4.
Adjust by using the VOL. +/- button on the remote
control until the SHIFT quantity of the OVER SCAN on
upside and downside becomes 8 ± 2%.
5.
Receive a broadcast and check if the picture is normal.
6.
Receive the monoscope pattern of NTSC. (Audio Video
Input)
7.
Using the remote control, set the brightness and
contrast to normal position.
8.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (12) on the remote control to
select "V SIZE (60)".
9.
Adjust by using the VOL. +/- button on the remote
control until the SHIFT quantity of the OVER SCAN on
upside and downside becomes 10 ± 2%.
10.
Receive a broadcast and check if the picture is normal.
2-11: BRIGHT CENT, BRIGHT MAX
1.
Receive the PAL black pattern*. (RF Input)
2.
Using the remote control, set the brightness and
contrast to normal position.
3.
Place the set with Aging Test for more than 15 minutes.
4.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (17) on the remote control to
select "BRIGHT CENT".
5.
Press the VOL. +/- button on the remote control until
the screen begin to shine.
6
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (18) on the remote control to
select "BRIGHT MAX".
7.
Press the VOL. +/- button on the remote control to
increase the step numbers by 3 steps to the "BRIGHT
CENT".
8.
Receive the PAL black pattern*. (Audio Video Input)
9.
Set to the AV mode. Then perform the above
adjustments 2~7.
*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 "57".
3.
Receive a broadcast and check if the picture is normal.
4.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (23) on the remote control to
select "CONTRAST MAX".
5.
Press the VOL. +/- button on the remote control to
increase the step numbers by 3 steps to the
"CONTRAST CENT".
6.
Set to the AV mode. Then perform the above
adjustments 1~5.