Toshiba 19A26C Service Manual page 15

2-5: TINT
Receive the color bar pattern.(RF Input)
1.
Connect the oscilloscope to TP023.
2.
Activate the adjustment mode display of Fig. 1-1 and
3.
press the channel button (22) on the remote control to
select "TINT".
Press the VOL. UP/DOWN button on the remote control
4.
until the section "A" becomes as straight line.
(Refer to Fig. 2-1)
Receive the color bar pattern. (Audio Video Input)
5.
Press the TV/AV button on the remote control to set to
6.
the AV mode. Then perform the above adjustments 2~4.
2-6: COLOR CENT
Receive the color bar pattern. (RF Input)
1.
Using the remote control, set the brightness, contrast,
2.
color, and tint to normal position.
Connect the oscilloscope to TP022.
3.
Activate the adjustment mode display of Fig. 1-1 and
4.
press the channel button (19) on the remote control to
select "COLOR CENT".
5. 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.
6. 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)
7. Receive the color bar pattern. (Audio Video Input)
8. Press the TV/AV button on the remote control to set to
the AV mode. Then perform the above adjustments 2~5.
Press the VOL. UP/DOWN button on the remote control
9.
until the red color level is adjusted to 110 ± 10% of the
white level. (Refer to Fig. 2-2)
white 100%
ELECTRICAL ADJUSTMENTS
"A"
Fig. 2-1
110%
Fig. 2-2
2-7: HORIZONTAL PHASE
1. Receive the monoscope pattern from the Pattern
Generator.
2. Activate the adjustment mode display of Fig. 1-1 and
press the channel button (05) on the remote control to
select "H.PHAS".
3. Press the VOL. UP/DOWN button on the remote control
until the SHIFT quantity of the OVER SCAN on right
and left becomes minimum.
2-8: BRIGHT CENTER
1. Receive the monoscope pattern. (RF Input)
2. Activate the adjustment mode display of Fig. 1-1 and
press the channel button (13) on the remote control to
select "BRI.CENT".
3.
Press the VOL. UP/DOWN button on the remote control
until the white 7.5% is starting to be visible.
4.
Receive the monoscope pattern. (Audio Video Input)
5.
Press the TV/AV button on the remote to set to the
AV mode. Then perform the above adjustment 2 and 3.
2-9: VERTICAL SHIFT
1. Receive the monoscope pattern from the Pattern
Generator.
2. Activate the adjustment mode display of Fig. 1-1
and press the channel button (07) on the remote
control to select "V.SFT".
3. Press the VOL. UP/DOWN button on the remote
control until the horizontal line becomes fit to the
notch of the shadow mask.
2-10: OSD POSITION
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. 2-4)
00 OSD
A
D-2
Shadow mask
Fig. 2-3
TV
28
B
Fig. 2-4