Toshiba 13A23, Service Manual

Page: 14 / 31

ELECTRICAL ADJUSTMENTS
D-2
2-6: 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%.
2-7: 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 "BRI.CENT".
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 TV/VIDEO button on the remote control to set
to the AV mode. Then perform the above adjustments
2~4.
2-9: SUB CONTRAST
1.
2.
3.
4.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (17) on the remote control to
select “CONT. MAX”.
Press the VOL. UP/DOWN button on the remote control
until the contrast step No. becomes “45”.
Receive a broadcast and check if the picture is normal.
Press the TV/VIDEO button on the remote control to set to
the AV mode. Then perform the above adjustments 1~3.
2-10: 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 34
Fig. 2-3
"A"
2-8: SUB TINT/SUB COLOR
1.
2.
3.
4.
5.
6.
7.
8.
9.
Receive the color bar pattern.
Connect the oscilloscope to TP023.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (22) on the remote control to
select "TINT".
Press the VOL. UP/DOWN button on the remote control
until the section "A" becomes as straight line
(Refer to Fig. 2-1)
Connect the oscilloscope to TP022.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (19) on the remote control to
select "COL.CENT".
Press the VOL. UP/DOWN button on the remote control
until the red color level is adjusted to 110
±
10% of the
white level. (Refer to Fig. 2-2)
Receive the color bar pattern. (Audio Video Input)
Press the TV/VIDEO button on the remote control to set
to the AV mode. Then perform the above adjustments
2~7
Fig. 2-1
white 100% red 110%
Fig. 2-2