Toshiba 20A42 Руководство по эксплуатации - Страница 14
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2-6: VERTICAL SHIFT
1.
Receive the monoscope pattern.
2.
Using the remote control, set the brightness and contrast
to normal position.
3.
Check if the step No. of V. SHIFT is "02".
4.
Adjust the VR401 until the horizontal line becomes fit to
the notch of the shadow mask.
2-7: VERTICAL SIZE
1.
Receive the monoscope pattern.
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 (06) on the remote control to
select "V. SIZE".
4.
Press the VOL. UP/DOWN button on the remote control
until the SHIFT quantity of the OVER SCAN on upside and
downside becomes 10 ± 2%.
2-8: VERTICAL LINEARITY
NOTE: Adjust after performing adjustments in section 2-7.
After the adjustment of Vertical Linearity, reconfirm
the Vertical Shift and Vertical Size adjustments.
1.
Receive the monoscope pattern.
2.
Using the remote control, set the brightness and contrast
to normal position.
3.
Adjust the VR402 until the SHIFT quantity of the OVER
SCAN on upside and downside becomes minimum.
2-9: 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. 2-1)
00 OSD
A
ELECTRICAL ADJUSTMENTS
TV
17
B
Fig. 2-1
2-10: BRIGHTNESS
1.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (13) on the remote control to
select "BRI CENT".
2.
Press the VOL. UP/DOWN button on the remote
control until the brightness step No. becomes "130".
3.
Receive a broadcast and check if the picture is normal.
4.
Press the TV/VIDEO button on the remote control to set
to the AV mode. Then perform the above adjustments
1~3.
2-11: SUB CONTRAST
1.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (17) on the remote control to
select "CONT. MAX".
2.
Press the VOL. UP/DOWN button on the remote control
until the contrast step No. becomes "80".
3.
Receive a broadcast and check if the picture is normal.
4.
Press the TV/VIDEO button on the remote control to set
to the AV mode. Then perform the above adjustments
1~3.
2-12: SUB TINT/SUB COLOR
1.
Receive the color bar pattern.
2.
Connect the oscilloscope to TP024.
3.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (22) on the remote control to
select "TINT".
4.
Press the VOL. UP/DOWN button on the remote control
until the section "A" becomes as straight line
(Refer to Fig. 2-2)
5.
Connect the oscilloscope to TP022.
6.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (19) on the remote control to
select "COL.CENT".
7.
Adjust the VOLTS RANGE VARIABLE knob of the
oscilloscope until the range between white 100% and
0% is set to 4 scales
8.
Press the VOL. UP/DOWN button on the remote control
until the red color level is adjusted to 110% of the white
level. (Refer to Fig. 2-3)
9.
Receive the color bar pattern. (Audio Video Input)
10.
Press the TV/VIDEO button on the remote control to set
to the AV mode. Then perform the above adjustments
2~8.
D-2