Toshiba VTW2187 Service Manual page 44

Color television/ video cassette recorder/ dvd video player
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2-10: HORIZONTAL POSITION OSD
1.
Using the remote control, set the brightness and
contrast to normal position.
2.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (31) on the remote control to
select "H POS OSD".
3.
Press the LEFT/RIGHT button on the remote control
until the difference of A and B becomes minimum.
(Refer to Fig. 2-2)
31 H POS OSD 42
A
2-11: CUT OFF
1.
Place the set in AV MODE without signal.
2.
Using the remote control, set the brightness and
contrast to normal position.
3.
Place the set in Aging Test for more than 15 minutes.
4.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (00) on the remote control to
select "CUT OFF".
5.
Adjust the Screen Volume until a dim raster is obtained.
2-12: WHITE BALANCE
NOTE: Adjust after performing CUT OFF adjustment.
1.
Place the set in Aging Test for more than 15 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 CH. UP/DOWN button on the remote control
to select the "R DRIVE", "G DRIVE", "M R CUTOFF" or
"M G CUTOFF".
6.
Adjust the LEFT/RIGHT 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 achieved.
ELECTRICAL ADJUSTMENTS
TV
B
Fig. 2-2
D3-3
2-13: BRIGHT CENT
1.
Receive the PAL black pattern*. (RF Input)
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 (17) on the remote control to
select "BRIGHT CENT".
4.
Press the LEFT/RIGHT button on the remote control
until the screen begin to shine.
5.
Receive the PAL black pattern*. (Audio Video Input)
6.
Press the AV button on the remote control to set to the
AV mode. Then perform the above adjustments 2~4.
7.
Press the DVD button on the remote control to set to
the DVD mode.
8.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (17) on the remote control to
select "BRIGHT CENT".
9.
Press the LEFT/RIGHT button on the remote control to
set the same step numbers as the AV mode.
*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.
2-14: CONTRAST CENT
1.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (20) on the remote control to
select "CONTRAST CENT".
2.
Press the LEFT/RIGHT button on the remote control
until the contrast step No. becomes "46".
3.
Receive a broadcast and check if the picture is normal.
4.
Press the AV button on the remote control to set to the
AV mode. Then perform the above adjustments 1~3.
5.
Press the DVD button on the remote control to set to
the DVD mode.
6.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (17) on the remote control to
select "BRIGHT CENT".
7.
Press the LEFT/RIGHT button on the remote control to
set the same step numbers as the AV mode.

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