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White balance adjustment
1. Preparatory adjustment
Adjustment jig
Color pattern generator
Meassuring location
Input signal
Studio color bar
1: At the time of adjustment, the color signal
is cut to facilitate white balance adjustment.
2. Sub-brightness adjustment
Adjustment jig
Color pattern generator
Oscilloscope
Meassuring location TP47G (board [A])
Adjustment location Remote control buttons [VOL +/-]
Input signal
Studio color bar
0
Purpose: Facilitation of white balance adjustment.
1. Establish the required conditions for white balance adjustment
according to the following table.
Image menu
Image
adjustment
(Service
adjustment
mode)
Screen volume
1. Receive a studio color bar.
2. Set to item [S-BRT] of the adjustment mode [HW
(WB adjustment).
3. Press the remote control button " " and make the screen one
horizontal line.
4. Adjust with the remote control buttons [VOL +/-] so that the
waveform fo TP47G (board [A]) becomes DC2.45
2.45 0.05V
5. Adjust the upper and lower blanking width with V-BKU and V-BKD to
50mm.
6. Press the remote control button " " to cancel one horizontal line.
Color darkness
Hue
Black level
Picture
Service adjustment item
[
]
(Color darkness)
R-CUT
G-CUT
B-CUT
R-DRV
B-DRV
- 23 -
Image 4 (dynamic)
Color temperature (high)
Screen mode 4:3
NR OFF
Power consumption
- Standard
[0] (center)
[+30] (Max.)
[00]
Make a note of the value
1
before adjustment
[00] Min. value
[7F] center value
[00] Min. value
[00] Min. value
Min. (left side)
]
0.05V.
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