Toshiba 26HF66 Service Manual page 19

2-8: SUB CONTRAST
1. Set the screen mode to FULL.
2. Activate the adjustment mode display of Fig. 1-1 and
press the channel button (52) on the remote control to
select "SUB CONT".
3. Check if the step No. SUB CONT is "14".
4. Receive a broadcast and check if the picture is normal.
Press the TV/VIDEO button on the remote control to set to
5.
the AV mode. Then perform the above adjustments 1~4.
6. Press the TV/VIDEO button on the remote control to set to
the CS mode. Then perform the above adjustments 1~4.
7. Press the TV/VIDEO button on the remote control to set
to the HD-MI mode. Then perform the above adjustments
1~4.
2-9: E/W PARA
1. Receive the crosshatch signal from the Pattern Generator.
2. Set the screen mode to FULL.
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 (15) on the remote control to
select "EW PARA".
5. Press the VOL. UP/DOWN button on the remote control
until the both ends vertical lines become straight.
6. Set the screen mode to 16:9.
7. Press the CH. UP/DOWN button on the remote control
until the both ends vertical lines of the screen become
parallel.
2-10: TRAPEZIUM
1. Receive the crosshatch signal from the Pattern Generator.
2. Press the MENU button. And, then press the LEFT/
RIGHT button on the remote control until the PICTURE
menu appears.
3. Press the VOL. UP/DOWN 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. Using the remote control, set the brightness and contrast
to normal position.
7. Activate the adjustment mode display of Fig. 1-1 and
press the channel button (16) on the remote control to
select "TRAPEZIUM".
8. Press the VOL. UP/DOWN button on the remote control
until the both ends vertical lines of the screen become
parallel.
ELECTRICAL ADJUSTMENTS
D-3
2-11: COR TOP/BTM
1. Receive the crosshatch signal from the Pattern Generator.
2. Set the screen mode to FULL.
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 (17) on the remote control to
select "COR. TOP".
5. Press the CH. UP/DOWN button on the remote control
until the both ends vertical lines become straight.
6. Activate the adjustment mode display of Fig. 1-1 and
press the channel button (18) on the remote control to
select "COR. BTM".
7. Press the VOL. UP/DOWN button on the remote control
until the both ends vertical lines of the screen become
parallel.
2-12: TINT/COLOR CENT
1. Receive the ANALOG color bar pattern.
2. Connect the oscilloscope to TP806.
3. Activate the adjustment mode display of Fig. 1-1 and
press the channel button (53) 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. 2-4)
5. Connect the oscilloscope to TP805.
6. Activate the adjustment mode display of Fig. 1-1 and
press the channel button (49) on the remote control to
select "COL.CENT".
7. 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. 2-5)
8. Please check whether the waveform of TP806 is straight
line. If is not a straight line, adjust to TINT again.
9. Receive the DIGITAL color bar pattern.
10. Then perform the above adjustments 2~8.
11. Receive the color bar pattern. (Audio Video Input)
12. Press the TV/VIDEO button on the remote control to set to
the AV mode. Then perform the above adjustments 2~8.
13. Receive the color bar pattern.
14. Press the TV/VIDEO button on the remote control to set to
the CS mode. Then perform the above adjustments 2~8.
15. Receive the color bar pattern.
16. Press the TV/VIDEO button on the remote control to set
to the HD-MI mode. Then perform the above adjustments
2~8.
"A"
"B"
Fig. 2-4