Toshiba MV14FM4, Руководство по обслуживанию

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ELECTRICAL ADJUSTMENTS
D3-3
2-11: VERTICAL SIZE
1.
2.
3.
4.
Receive the monoscope pattern.
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 (06) on the remote control to
select "V SIZE".
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%.
2-12: VERTICAL LINEARITY
1.
2.
3.
NOTE: Adjust after performing adjustments in section 2-11.
After the adjustment of Vertical Linearity, reconfirm
the Vertical Shift and Vertical Size adjustments.
Receive the monoscope pattern.
Using the remote control, set the brightness and
contrast to normal position.
Adjust the VR401 until the SHIFT quantity of the OVER
SCAN on upside and downside becomes minimum.
2-13: SUB BRIGHTNESS
1.
2.
3.
4.
5.
6.
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 (13) on the remote control to
select "BRIGHTNESS".
Press the VOL. UP/DOWN button on the remote
control until the white 10% is starting to be visible.
Receive the monoscope pattern. (Audio Video Input)
Press the INPUT SELECT button on the remote control
to set to the AV mode. Then perform the above
adjustments 2~4.
2-15: SUB TINT
1.
2.
3.
4.
5.
6.
7.
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 (R808).
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (16) 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. 2-2)
Receive the color bar pattern. (Audio Video Input)
Press the INPUT SELECT button on the remote control
to set to the AV mode. Then perform the above
adjustments 2~5.
2-14: SUB CONTRAST
1.
2.
3.
4.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (14) on the remote control to
select "CONTRAST".
Press the VOL. UP/DOWN button on the remote
control until the contrast step No. becomes "85".
Receive a broadcast and check if the picture is normal.
Press the INPUT SELECT button on the remote control
to set to the AV mode. Then perform the above
adjustments 1~3.
2-17: OSD HORIZONTAL
1.
2. 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. 2-4)
B A
TV
00 OSD 15
Fig. 2-4
100%
White 0%
Red Level
White 100%
Fig. 2-3
Fig. 2-2
2-16: SUB COLOR
1.
2.
3.
4.
5.
6.
7.
8.
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 TP804 (R804).
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (15) on the remote control to
select "COLOR".
Adjust the VOLTS RANGE VARIABLE knob of the
oscilloscope until the range between white 100% and
0% is set to 4 scales on the screen of the oscilloscope.
Press the VOL. UP/DOWN button on the remote control
until the red color level is adjusted to 110
±
5% of the
white level. (Refer to Fig. 2-3)
Receive the color bar pattern. (Audio Video Input)
Press the INPUT SELECT button on the remote control
to set to the AV mode. Then perform the above
adjustments 2~6.
"A"