Toshiba MW30G71 Service Manual - Page 59

: Horizontal Position/ Horizontal Size

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ELECTRICAL ADJUSTMENTS 2-2: CUT OFF 2-5: OSD POSITION 1. Place the set in Aging Test for more than 15 minutes. 2. Place the set in AV MODE without signal. 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 (01) on the remote control to select "CUT OFF". 5. Adjust the Screen Volume until a dim raster is obtained. 2-3: WHITE BALANCE 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 (00) on the remote control to select "OSD H". 4. Press the LEFT/RIGHT button on the remote control until the difference of A and B becomes minimum. (Refer to Fig. 2-3) 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 (24) on the remote control to select "R.BIAS". 5. Press the CH. UP/DOWN button on the remote control to select the "R.BIAS", "G.BIAS", "B.BIAS", "R/G.DRV", "B/ R.DRV", "R.BIAS(C)", "G.BIAS(C)", "B.BIAS(C)", "R/ G.DRV(C)", "B/R.DRV(C)", "R.BIAS(W)", "G.BIAS(W)", "B.BIAS(W)", "R/G.DRV(W)" or "B/R.DRV(W)". 6. Adjust the VOL. UP/DOWN button on the remote control to whiten the R.BIAS(C), G.BIAS(C), B.BIAS(C), R/ G.DRV(C), B/R.DRV(C), R.BIAS(W), G.BIAS(W), B.BIAS(W), R/G.DRV(W) and B/R.DRV(W) at each step tone sections equally. 7. Perform the above adjustments 5 and 6 until the white color is achieved. 2-4: DOUBLE FOCUS 1. Receive the cross hatch signal from the Pattern Generator. 2. Turn the F1 VR and F2 VR fully clockwise once. (Refer to Fig. 2-2) 3. Adjust the F1 VR so that the screen becomes clearest. Then adjust the F2 VR. Focus VR F1 VR F2 VR TV FULL 00 OSD H 1 A B Fig. 2-3 2-6: HORIZONTAL POSITION/ HORIZONTAL SIZE 1. Receive the monoscope pattern. 2. Press the MENU button. And, then press the LEFT/ RIGHT button on the remote control until the PICTURE menu appears. 3. Press the LEFT/RIGHT button on the remote control to highlight DISPLAY FORMAT. 4. Press the LEFT/RIGHT button on the remote control to select 1080i. 5. Set the screen mode to FULL. 6. Activate the adjustment mode display of Fig. 1-1 and press the channel button (02) on the remote control to select "H.POSI". 7. Press the VOL. UP/DOWN button on the remote control until the SHIFT quantity of the OVER SCAN on right and left becomes becomes minimum. 8. Receive the monoscope pattern. 9. Activate the adjustment mode display of Fig. 1-1 and press the channel button (04) on the remote control to select "H. SIZE". 10.Press the VOL. UP/DOWN button on the remote control until the SHIFT quantity of the OVER SCAN on right and left becomes 7.5%. SCREEN VR Fig. 2-2 D3-2

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ELECTRICAL ADJUSTMENTS
D3-2
2-3: WHITE BALANCE
NOTE:
Adjust after performing CUT OFF adjustment.
1.
2.
3.
4.
5.
6.
7.
Place the set in Aging Test for more than 15 minutes.
Receive the gray scale pattern 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
(24)
on the remote control to
select “R.BIAS”.
Press the CH. UP/DOWN button on the remote control to
select the “R.BIAS”, “G.BIAS”, “B.BIAS”, “R/G.DRV”, “B/
R.DRV”, “R.BIAS(C)”, “G.BIAS(C)”, “B.BIAS(C)”, “R/
G.DRV(C)”, “B/R.DRV(C)”, “R.BIAS(W)”, “G.BIAS(W)”,
“B.BIAS(W)”, “R/G.DRV(W)” or “B/R.DRV(W)”.
Adjust the VOL. UP/DOWN button on the remote control
to whiten the R.BIAS(C), G.BIAS(C), B.BIAS(C), R/
G.DRV(C), B/R.DRV(C), R.BIAS(W), G.BIAS(W),
B.BIAS(W), R/G.DRV(W) and B/R.DRV(W) at each step
tone sections equally.
Perform the above adjustments 5 and 6 until the white
color is achieved.
2-2: CUT OFF
1.
2.
3.
4.
5.
Place the set in Aging Test for more than 15 minutes.
Place the set in AV MODE without signal.
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
(01)
on the remote control to
select "CUT OFF".
Adjust the
Screen Volume
until a dim raster is obtained.
2-5: OSD POSITION
1.
2.
3.
4.
Receive the monoscope pattern 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
(00)
on the remote control to
select "OSD H".
Press the LEFT/RIGHT button on the remote control
until the difference of A and B becomes minimum.
(Refer to Fig. 2-3)
2-4: DOUBLE FOCUS
1.
2.
3.
Receive the cross hatch signal from the Pattern
Generator.
Turn the
F1 VR
and
F2 VR
fully clockwise once.
(Refer
to Fig. 2-2)
Adjust the
F1 VR
so that the screen becomes clearest.
Then adjust the
F2 VR
.
Fig. 2-2
F1 VR
F2 VR
SCREEN VR
Focus VR
Fig. 2-3
B
A
00
OSD H
TV
FULL
1
2-6: HORIZONTAL POSITION/ HORIZONTAL SIZE
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Receive the monoscope pattern.
Press the MENU button. And, then press the LEFT/
RIGHT button on the remote control until the PICTURE
menu appears.
Press the LEFT/RIGHT button on the remote control to
highlight DISPLAY FORMAT.
Press the LEFT/RIGHT button on the remote control to
select 1080i.
Set the screen mode to FULL.
Activate the adjustment mode display of
Fig. 1-1
and
press the channel button
(02)
on the remote control to
select "H.POSI".
Press the VOL. UP/DOWN button on the remote
control until the SHIFT quantity of the OVER SCAN on
right and left becomes becomes minimum.
Receive the monoscope pattern.
Activate the adjustment mode display of
Fig. 1-1
and
press the channel button
(04)
on the remote control to
select “H. SIZE”.
Press the VOL. UP/DOWN button on the remote control
until the SHIFT quantity of the OVER SCAN on right and
left becomes 7.5%.