ELECTRICAL ADJUSTMENTS
2-13: COLOR CENT2-15: Confirmation of Fixed Value (Step No.)
1.Receive the PAL color bar pattern. (RF Input)Please check if the fixed values of the each adjustment
2.Using the remote control, set the brightness, contrastitems are set correctly referring below.
NO.FUNCTIONRFAVand color to normal position.
3.Connect the oscilloscope to TP022.
02AGC GAIN00---4.Activate the adjustment mode display of Fig. 1-1 and
04R CUTOFF00---
06G CUTOFF00---press the channel button (25) on the remote control to
select "COLOR CENT".
07B DRIVE45---5.Adjust the VOLTS RANGE VARIABLE knob of the
09V POSI (50)15---
10V POSI (60)00---oscilloscope until the range between white 100% and
0% is set to 5 scales on the screen of the oscilloscope.
18BRIGHT MAX30306.Press the VOL. +/- button on the remote control until
19BRIGHT MIN1010
20TINT30ADJ.the red color level is adjusted to 100 ? 10% of the
white level. (Refer to Fig. 2-1)
21SHARP0307
23CONTRAST MAX45457.Receive the PAL color bar pattern. (Audio Video Input)
8.Set to the AV mode. Then perform the above
24CONTRAST MIN1010adjustments 2~6.
26COLOR MAX4545
27COLOR MIN1010
30M B CUT OFF127---
31CVBS OUT31---
32APR THRESHOLD00---
33BELL FILTER00---
34BANDPASS00---
100%35H POSI OSD135---
36V POSI OSD57---
37H POSI TEXT130---
38V POSI TEXT57---
*To check for the fixed values of the RF (60Hz), indicate
the adjustment mode screen while input the 60Hz video
Fig. 2-1signal.
2-14: TINT
1.Receive the NTSC color bar pattern. (Audio Video Input)
2.Using the remote control, set the brightness and contrast
to normal position.
3.Connect the oscilloscope to TP023.
4.Activate the adjustment mode display of Fig. 1-1 and
press the channel button (20) on the remote control to
select "TINT".
5.Press the VOL. +/- button on the remote control until the
section "A" becomes a straight line. (Refer to Fig. 2-2)
"A"
Fig. 2-2
D-3 |
ACEC
TOSHIBA
