adjustment is not done even when "COLOR TEMP" of "PICTURE ADJ" or color temperature fine
adjustment of "Technical" is selected. Accordingly, enter into Concurrent mode,press the "AV
ADJ" button of the remote control, and select with the left and right cursor button to switch the
color temperature.
[At the time of 1080i adjustment]
* Set to a condition where 1080i can be input. Then enter into Concurrent mode, confirm that the
on-screen adjustment item is 1080i, and perform adjustment.
[At the time of "DEF ADJ" adjustment]... Refer to page 18.
9.2. White balance adjustment
Perform this white balance adjustment when the white or the black parts on the screen are out of
balance or when the picture tube has been exchanged. Before performing white balance
adjustment, est the cut-off voltage must be set, and then performwhite balance adjustment.
9.2.1. Setting of the cut-off voltage
1. Receive an NTSC signal and set the aspect ratio to "FULL.
2. Enter into Concurrent mode and confirm that the color
temperature is "WARM". (See above for setting of WARM/NORMAL
/COOL.)
3. Select "HYBRID GAMMA" - "REAL BRIGHT" in Concurrent mode
and fix the adjustment value to "AF". The select "HYBRID
GAMMA" - "G DRIVE" and fix the "G DRIVE" adjustment value to
"AF".
* Setting to the above conditions facilitates the adjustment of the
pedestal level (DC 170 ? 5 V) in step (7).
4. Turn the screen volume (S1) of the flyback transformer to the left,
and set so that the OSD can just be seen.
5. Enter into Concurrent mode and select "HYBRID GAMMA" - "G
CUT OFF".
6. Connect an oscilloscope to TPL2 (G cut-off) on the L-Board. Then
press the button "(6)" on the remote control to obtain a green
screen, and use the button "(5)" on the remote control to obtain
one horizontal line.
* Use TPL9 on the L-Board for probe earth. (There are also TPL11,
L7, L8, etc.)
25 |
ACEC
PANASONIC
