Toshiba MW27F51 Service Manual - Page 49

: Corner Corr Top - white lines

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ELECTRICAL ADJUSTMENTS 2-11: TRAPEZIUM 1. Receive the crosshatch signal 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 (31) on the remote control to select "TRAPEZIUM". 4. Press the VOL. UP/DOWN button on the remote control until the both vertical lines of the screen become parallel. 2-12: PARABOLA 1. Receive the crosshatch signal 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 (30) on the remote control to select "PARABOLA". 4. Press the VOL. UP/DOWN button on the remote control until the right and left vertical lines are straight. 2-13: CORNER CORR TOP 1. Receive the crosshatch signal 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 (32) on the remote control to select "COR TOP". 4. Press the VOL. UP/DOWN button on the remote control until the upper section of the both ends vertical lines are straight. 2-14: CORNER CORR BOTTOM 1. Receive the crosshatch signal 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 (33) on the remote control to select "COR BTM". 4. Press the VOL. UP/DOWN button on the remote control until the bottom section of the both ends vertical lines are straight. 2-16: BRIGHT CENTER 1. Receive the monoscope 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 "BRI CENT". 4. Press the VOL. UP/DOWN button on the remote control until the white 15% is starting to be visible 5. Receive the monoscope pattern. (Audio Video Input) 6. Press the INPUT 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 "BRI CENT". 9. Press the VOL. UP/DOWN button on the remote control to set the same step numbers as the AV mode. 2-17: TINT 1. Receive the color bar pattern. (RF Input) 2. Using the remote control, set the brightness, contrast, color and tint to normal position. 3. Connect the oscilloscope to TP806. 4. Activate the adjustment mode display of Fig. 1-1 and press the channel button (26) on the remote control to select "TINT". 5. Press the VOL. UP/DOWN button on the remote control until the section "A" becomes a straight line (Refer to Fig. 2-4). 6. Receive the color bar pattern. (Audio Video Input) 7. Press the INPUT button on the remote control to set to the AV mode. Then perform the above adjustments 2~5. Press the DVD button on the remote control to set to the 8. DVD mode. Activate the adjustment mode display of Fig. 1-1 and 9. press the channel button (26) on the remote control to select "TINT". 10. Press the VOL. UP/DOWN button on the remote control to set the same step numbers as the AV mode. 2-15: OSD HORIZONTAL 1. Activate the adjustment mode display of Fig. 1-1. 2. Press the VOL. UP/DOWN button on the remote control until the difference of A and B becomes minimum. (Refer to Fig. 2-3) TV 00 OSD A 07 B Fig. 2-3 D3-3 "A" Fig. 2-4

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ELECTRICAL ADJUSTMENTS
D3-3
2-17: TINT
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Receive the color bar pattern. (RF Input)
Using the remote control, set the brightness, contrast,
color and tint to normal position.
Connect the oscilloscope to
TP806
.
Activate the adjustment mode display of
Fig. 1-1
and
press the channel button
(26)
on the remote control to
select "TINT".
Press the VOL. UP/DOWN button on the remote control
until the section "A" becomes a straight line
(Refer to Fig. 2-4)
.
Receive the color bar pattern. (Audio Video Input)
Press the INPUT button on the remote control to set to
the AV mode. Then perform the above adjustments 2~5.
Press the DVD button on the remote control to set to the
DVD mode.
Activate the adjustment mode display of
Fig. 1-1
and
press the channel button
(26)
on the remote control to
select "TINT".
Press the VOL. UP/DOWN button on the remote control
to set the same step numbers as the AV mode.
Fig. 2-4
2-16: BRIGHT CENTER
1.
2.
3.
4.
5.
6.
7.
8.
9.
Receive the monoscope pattern. (RF Input)
Using the remote control, set the brightness and contrast
to normal position.
Activate the adjustment mode display of
Fig. 1-1
and
press the channel button
(17)
on the remote control to
select "BRI CENT".
Press the VOL. UP/DOWN button on the remote control
until the white 15% is starting to be visible
Receive the monoscope pattern. (Audio Video Input)
Press the INPUT button on the remote control to set to
the AV mode. Then perform the above adjustments 2~4.
Press the DVD button on the remote control to set to the
DVD mode.
Activate the adjustment mode display of
Fig. 1-1
and
press the channel button
(17)
on the remote control to
select "BRI CENT".
Press the VOL. UP/DOWN button on the remote control
to set the same step numbers as the AV mode.
"A"
2-15: OSD HORIZONTAL
Activate the adjustment mode display of
Fig. 1-1
.
Press the VOL. UP/DOWN button on the remote control
until the difference of A and B becomes minimum.
(Refer
to Fig. 2-3)
1.
2.
B
A
TV
00
OSD
07
Fig. 2-3
2-11: TRAPEZIUM
1.
2.
3.
4.
Receive the crosshatch signal from the Pattern Generator.
Using the remote control, set the brightness and contrast
to normal position.
Activate the adjustment mode display of
Fig. 1-1
and
press the channel button
(31)
on the remote control to
select “TRAPEZIUM”.
Press the VOL. UP/DOWN button on the remote control
until the both vertical lines of the screen become parallel.
2-12: PARABOLA
1.
2.
3.
4.
Receive the crosshatch signal from the Pattern Generator.
Using the remote control, set the brightness and contrast
to normal position.
Activate the adjustment mode display of
Fig. 1-1
and
press the channel button
(30)
on the remote control to
select “PARABOLA”.
Press the VOL. UP/DOWN button on the remote control
until the right and left vertical lines are straight.
2-13: CORNER CORR TOP
1.
2.
3.
4.
Receive the crosshatch signal from the Pattern Generator.
Using the remote control, set the brightness and contrast
to normal position.
Activate the adjustment mode display of
Fig. 1-1
and
press the channel button
(32)
on the remote control to
select “COR TOP”.
Press the VOL. UP/DOWN button on the remote control
until the upper section of the both ends vertical lines are
straight.
2-14: CORNER CORR BOTTOM
1.
2.
3.
4.
Receive the crosshatch signal from the Pattern Generator.
Using the remote control, set the brightness and contrast
to normal position.
Activate the adjustment mode display of
Fig. 1-1
and
press the channel button
(33)
on the remote control to
select “COR BTM”.
Press the VOL. UP/DOWN button on the remote control
until the bottom section of the both ends vertical lines are
straight.