ELECTRICAL ADJUSTMENTS
D-3
27A45/27A45C
2-14: BRIGHT CENT
1.
2.
3.
4.
5.
6.
7.
8.
9.
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 (16) on the remote control to
select "BRI CENT".
Press the VOL. UP/DOWN button on the remote control
until the white 0% 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.
Press the TV/VIDEO button on the remote control to set
to the CS mode.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (16) on the remote control to
select "BRI CENT".
Press the VOL. UP/DOWN button on the remote control
until the brightness step No. becomes "65".
2-15: COLOR CENT
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Receive the color bar pattern. (RF Input)
Using the remote control, set the brightness, contrast,
color and tint to normal position.
Connect the oscilloscope to TP022.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (22) on the remote control to
select "COLOR CENT".
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.
Press the VOL. UP/DOWN button on the remote control
until the red color level is adjusted to 120
±
10% of the
white level. (Refer to Fig. 2-
3
)
Receive the video color bar pattern. (Audio Video Input)
Set to the AV mode. Then perform the above
adjustments 2~6.
Press the TV/VIDEO button on the remote control to set
to the CS mode. Then perform the above adjustments
2~4.
Press the VOL. UP/DOWN button on the remote control
until the color step No. becomes "65".
Fig. 2-3
100% 120%
Method (2)
1.
2.
3.
4.
5.
6.
7.
8.
9.
Set the multi-sound signal generator L-ch=1KHz, R-ch
=Non input and receive the RF.
Connect the oscilloscope to the Audio Out Jack (R-ch).
Press the AUDIO SELECT button on the remote control
to set to the stereo mode.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (34) on the remote control to
select “SEP 1”.
Press the VOL. UP/DOWN button on the remote control
to adjust it until the R-ch output becomes minimum.
Set the multi-sound signal generator L-ch=Non input,
R-ch=1KHz and receive the RF.
Connect the oscilloscope to the Audio Out Jack (L-ch).
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (35) on the remote control to
select “SEP 2”.
Press the VOL. UP/DOWN button on the remote control
to adjust it until the L-ch output becomes minimum.
The output difference of the between with Filter and
without Filter should be more than 25db for both L and R.
2-13: OSD POSITION
1.
2.
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-
2
)
B
A
TV
00 OSD 35
Fig. 2-2
