Service manual

ELECTRICAL ADJUSTMENTS
2-4: CONTRAST 40 2-5: CONTRAST CENTER
1. Receive the color bar pattern. (RF Input) 1. Receive the color bar pattern. (RF Input)
2. Using the remote control, set the brightness and contrast 2. Using the remote control, set the brightness and contrast
to normal position. to normal position.
3. Activate the adjustment mode display of Fig. 1-1 and 3. Activate the adjustment mode display of Fig. 1-1 and
press the channel button (58) on the remote control to press the channel button (50) on the remote control to
select "CONTRAST 40". select "CONTRAST CENTER".
4. Press the VOL.UP/DOWN button on the remote control until 4. Press the VOL.UP/DOWN button on the remote control until
the contrast step No. becomes "138". the contrast step No. becomes "160".
5. Check if the picture is normal. 5. Check if the picture is normal.
6. Receive the color bar pattern. (VIDEO Input) 6. Receive the color bar pattern. (VIDEO Input)
7. Press the INPUT SELECT button on the remote control 7. Press the INPUT SELECT button on the remote control
to set to the AV mode. to set to the AV mode.
8. Using the remote control, set the brightness and contrast 8. Using the remote control, set the brightness and contrast
to normal position. to normal position.
9. Activate the adjustment mode display of Fig. 1-1 and 9. Activate the adjustment mode display of Fig. 1-1 and
press the channel button (58) on the remote control to press the channel button (50) on the remote control to
select "CONTRAST 40". select "CONTRAST CENTER".
10. Press the VOL.UP/DOWN button on the remote control until 10. Press the VOL.UP/DOWN button on the remote control until
the contrast step No. becomes "144". the contrast step No. becomes "160".
11. Check if the picture is normal. 11. Check if the picture is normal.
12. Receive the color bar pattern. (S-VIDEO Input) 12. Receive the color bar pattern. (S-VIDEO Input)
13. Press the INPUT SELECT button on the remote control 13. Press the INPUT SELECT button on the remote control
to set to the AV(S) mode. to set to the AV(S) mode.
14. Using the remote control, set the brightness and contrast 14. Using the remote control, set the brightness and contrast
to normal position. to normal position.
15. Activate the adjustment mode display of Fig. 1-1 and 15. Activate the adjustment mode display of Fig. 1-1 and
press the channel button (58) on the remote control to press the channel button (50) on the remote control to
select "CONTRAST 40". select "CONTRAST CENTER".
16. Press the VOL.UP/DOWN button on the remote control until 16. Press the VOL.UP/DOWN button on the remote control until
the contrast step No becomes
"
144
"
the contrast step No becomes
"
160
"
the
contrast
step
No
.
becomes
144
.
the
contrast
step
No
.
becomes
160
.
17. Check if the picture is normal. 17. Check if the picture is normal.
18. Playback the DVD(480i) disc. (COMPONENT Input) 18. Playback the DVD(480i) disc. (COMPONENT Input)
19. Press the INPUT SELECT button on the remote control 19. Press the INPUT SELECT button on the remote control
to set to the COMPONENT mode. to set to the COMPONENT mode.
20. Using the remote control, set the brightness and contrast 20. Using the remote control, set the brightness and contrast
to normal position. to normal position.
21. Activate the adjustment mode display of Fig. 1-1 and 21. Activate the adjustment mode display of Fig. 1-1 and
press the channel button (58) on the remote control to press the channel button (50) on the remote control to
select "CONTRAST 40". select "CONTRAST CENTER".
22. Press the VOL.UP/DOWN button on the remote control until 22. Press the VOL.UP/DOWN button on the remote control until
the contrast step No. becomes "143". the contrast step No. becomes "170".
23. Check if the picture is normal. 23. Check if the picture is normal.
D-3